diff --git a/contrib/README.contrib b/contrib/README.contrib
index a411d5c..335e435 100644
--- a/contrib/README.contrib
+++ b/contrib/README.contrib
@@ -8,14 +8,6 @@
         Support for Ada
         See http://zlib-ada.sourceforge.net/
 
-amd64/      by Mikhail Teterin <mi@ALDAN.algebra.com>
-        asm code for AMD64
-        See patch at http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/96393
-
-asm686/     by Brian Raiter <breadbox@muppetlabs.com>
-        asm code for Pentium and PPro/PII, using the AT&T (GNU as) syntax
-        See http://www.muppetlabs.com/~breadbox/software/assembly.html
-
 blast/      by Mark Adler <madler@alumni.caltech.edu>
         Decompressor for output of PKWare Data Compression Library (DCL)
 
@@ -32,9 +24,6 @@
 infback9/   by Mark Adler <madler@alumni.caltech.edu>
         Unsupported diffs to infback to decode the deflate64 format
 
-inflate86/  by Chris Anderson <christop@charm.net>
-        Tuned x86 gcc asm code to replace inflate_fast()
-
 iostream/   by Kevin Ruland <kevin@rodin.wustl.edu>
         A C++ I/O streams interface to the zlib gz* functions
 
@@ -45,16 +34,6 @@
             and Kevin Ruland <kevin@rodin.wustl.edu>
         Yet another C++ I/O streams interface
 
-masmx64/    by Gilles Vollant <info@winimage.com>
-        x86 64-bit (AMD64 and Intel EM64t) code for x64 assembler to
-        replace longest_match() and inflate_fast(),  also masm x86
-        64-bits translation of Chris Anderson inflate_fast()
-
-masmx86/    by Gilles Vollant <info@winimage.com>
-        x86 asm code to replace longest_match() and inflate_fast(),
-        for Visual C++ and MASM (32 bits).
-        Based on Brian Raiter (asm686) and Chris Anderson (inflate86)
-
 minizip/    by Gilles Vollant <info@winimage.com>
         Mini zip and unzip based on zlib
         Includes Zip64 support by Mathias Svensson <mathias@result42.com>
diff --git a/contrib/amd64/amd64-match.S b/contrib/amd64/amd64-match.S
deleted file mode 100644
index 81d4a1c..0000000
--- a/contrib/amd64/amd64-match.S
+++ /dev/null
@@ -1,452 +0,0 @@
-/*
- * match.S -- optimized version of longest_match()
- * based on the similar work by Gilles Vollant, and Brian Raiter, written 1998
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the BSD License. Use by owners of Che Guevarra
- * parafernalia is prohibited, where possible, and highly discouraged
- * elsewhere.
- */
-
-#ifndef NO_UNDERLINE
-#	define	match_init	_match_init
-#	define	longest_match	_longest_match
-#endif
-
-#define	scanend		ebx
-#define	scanendw	bx
-#define	chainlenwmask	edx /* high word: current chain len low word: s->wmask */
-#define	curmatch	rsi
-#define	curmatchd	esi
-#define	windowbestlen	r8
-#define	scanalign	r9
-#define	scanalignd	r9d
-#define	window		r10
-#define	bestlen		r11
-#define	bestlend	r11d
-#define	scanstart	r12d
-#define	scanstartw	r12w
-#define scan		r13
-#define nicematch	r14d
-#define	limit		r15
-#define	limitd		r15d
-#define prev		rcx
-
-/*
- * The 258 is a "magic number, not a parameter -- changing it
- * breaks the hell loose
- */
-#define	MAX_MATCH	(258)
-#define	MIN_MATCH	(3)
-#define	MIN_LOOKAHEAD	(MAX_MATCH + MIN_MATCH + 1)
-#define	MAX_MATCH_8	((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-#define	LocalVarsSize	(112)
-#define _chainlenwmask	( 8-LocalVarsSize)(%rsp)
-#define _windowbestlen	(16-LocalVarsSize)(%rsp)
-#define save_r14        (24-LocalVarsSize)(%rsp)
-#define save_rsi        (32-LocalVarsSize)(%rsp)
-#define save_rbx        (40-LocalVarsSize)(%rsp)
-#define save_r12        (56-LocalVarsSize)(%rsp)
-#define save_r13        (64-LocalVarsSize)(%rsp)
-#define save_r15        (80-LocalVarsSize)(%rsp)
-
-
-.globl	match_init, longest_match
-
-/*
- * On AMD64 the first argument of a function (in our case -- the pointer to
- * deflate_state structure) is passed in %rdi, hence our offsets below are
- * all off of that.
- */
-
-/* you can check the structure offset by running
-
-#include <stdlib.h>
-#include <stdio.h>
-#include "deflate.h"
-
-void print_depl()
-{
-deflate_state ds;
-deflate_state *s=&ds;
-printf("size pointer=%u\n",(int)sizeof(void*));
-
-printf("#define dsWSize         (%3u)(%%rdi)\n",(int)(((char*)&(s->w_size))-((char*)s)));
-printf("#define dsWMask         (%3u)(%%rdi)\n",(int)(((char*)&(s->w_mask))-((char*)s)));
-printf("#define dsWindow        (%3u)(%%rdi)\n",(int)(((char*)&(s->window))-((char*)s)));
-printf("#define dsPrev          (%3u)(%%rdi)\n",(int)(((char*)&(s->prev))-((char*)s)));
-printf("#define dsMatchLen      (%3u)(%%rdi)\n",(int)(((char*)&(s->match_length))-((char*)s)));
-printf("#define dsPrevMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_match))-((char*)s)));
-printf("#define dsStrStart      (%3u)(%%rdi)\n",(int)(((char*)&(s->strstart))-((char*)s)));
-printf("#define dsMatchStart    (%3u)(%%rdi)\n",(int)(((char*)&(s->match_start))-((char*)s)));
-printf("#define dsLookahead     (%3u)(%%rdi)\n",(int)(((char*)&(s->lookahead))-((char*)s)));
-printf("#define dsPrevLen       (%3u)(%%rdi)\n",(int)(((char*)&(s->prev_length))-((char*)s)));
-printf("#define dsMaxChainLen   (%3u)(%%rdi)\n",(int)(((char*)&(s->max_chain_length))-((char*)s)));
-printf("#define dsGoodMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->good_match))-((char*)s)));
-printf("#define dsNiceMatch     (%3u)(%%rdi)\n",(int)(((char*)&(s->nice_match))-((char*)s)));
-}
-
-*/
-
-
-/*
-  to compile for XCode 3.2 on MacOSX x86_64
-  - run "gcc -g -c -DXCODE_MAC_X64_STRUCTURE amd64-match.S"
- */
-
-
-#ifndef CURRENT_LINX_XCODE_MAC_X64_STRUCTURE
-#define dsWSize		( 68)(%rdi)
-#define dsWMask		( 76)(%rdi)
-#define dsWindow	( 80)(%rdi)
-#define dsPrev		( 96)(%rdi)
-#define dsMatchLen	(144)(%rdi)
-#define dsPrevMatch	(148)(%rdi)
-#define dsStrStart	(156)(%rdi)
-#define dsMatchStart	(160)(%rdi)
-#define dsLookahead	(164)(%rdi)
-#define dsPrevLen	(168)(%rdi)
-#define dsMaxChainLen	(172)(%rdi)
-#define dsGoodMatch	(188)(%rdi)
-#define dsNiceMatch	(192)(%rdi)
-
-#else 
-
-#ifndef STRUCT_OFFSET
-#	define STRUCT_OFFSET	(0)
-#endif
-
-
-#define dsWSize		( 56 + STRUCT_OFFSET)(%rdi)
-#define dsWMask		( 64 + STRUCT_OFFSET)(%rdi)
-#define dsWindow	( 72 + STRUCT_OFFSET)(%rdi)
-#define dsPrev		( 88 + STRUCT_OFFSET)(%rdi)
-#define dsMatchLen	(136 + STRUCT_OFFSET)(%rdi)
-#define dsPrevMatch	(140 + STRUCT_OFFSET)(%rdi)
-#define dsStrStart	(148 + STRUCT_OFFSET)(%rdi)
-#define dsMatchStart	(152 + STRUCT_OFFSET)(%rdi)
-#define dsLookahead	(156 + STRUCT_OFFSET)(%rdi)
-#define dsPrevLen	(160 + STRUCT_OFFSET)(%rdi)
-#define dsMaxChainLen	(164 + STRUCT_OFFSET)(%rdi)
-#define dsGoodMatch	(180 + STRUCT_OFFSET)(%rdi)
-#define dsNiceMatch	(184 + STRUCT_OFFSET)(%rdi)
-
-#endif
-
-
-
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-
-longest_match:
-/*
- * Retrieve the function arguments. %curmatch will hold cur_match
- * throughout the entire function (passed via rsi on amd64).
- * rdi will hold the pointer to the deflate_state (first arg on amd64)
- */
-		mov     %rsi, save_rsi
-		mov     %rbx, save_rbx
-		mov	%r12, save_r12
-		mov     %r13, save_r13
-		mov     %r14, save_r14
-		mov     %r15, save_r15
-
-/* uInt wmask = s->w_mask;						*/
-/* unsigned chain_length = s->max_chain_length;				*/
-/* if (s->prev_length >= s->good_match) {				*/
-/*     chain_length >>= 2;						*/
-/* }									*/
-
-		movl	dsPrevLen, %eax
-		movl	dsGoodMatch, %ebx
-		cmpl	%ebx, %eax
-		movl	dsWMask, %eax
-		movl	dsMaxChainLen, %chainlenwmask
-		jl	LastMatchGood
-		shrl	$2, %chainlenwmask
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can	*/
-/* use the sign flag instead of the zero flag for the exit test.	*/
-/* It is then shifted into the high word, to make room for the wmask	*/
-/* value, which it will always accompany.				*/
-
-		decl	%chainlenwmask
-		shll	$16, %chainlenwmask
-		orl	%eax, %chainlenwmask
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;	*/
-
-		movl	dsNiceMatch, %eax
-		movl	dsLookahead, %ebx
-		cmpl	%eax, %ebx
-		jl	LookaheadLess
-		movl	%eax, %ebx
-LookaheadLess:	movl	%ebx, %nicematch
-
-/* register Bytef *scan = s->window + s->strstart;			*/
-
-		mov	dsWindow, %window
-		movl	dsStrStart, %limitd
-		lea	(%limit, %window), %scan
-
-/* Determine how many bytes the scan ptr is off from being		*/
-/* dword-aligned.							*/
-
-		mov	%scan, %scanalign
-		negl	%scanalignd
-		andl	$3, %scanalignd
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?			*/
-/*     s->strstart - (IPos)MAX_DIST(s) : NIL;				*/
-
-		movl	dsWSize, %eax
-		subl	$MIN_LOOKAHEAD, %eax
-		xorl	%ecx, %ecx
-		subl	%eax, %limitd
-		cmovng	%ecx, %limitd
-
-/* int best_len = s->prev_length;					*/
-
-		movl	dsPrevLen, %bestlend
-
-/* Store the sum of s->window + best_len in %windowbestlen locally, and in memory.	*/
-
-		lea	(%window, %bestlen), %windowbestlen
-		mov	%windowbestlen, _windowbestlen
-
-/* register ush scan_start = *(ushf*)scan;				*/
-/* register ush scan_end   = *(ushf*)(scan+best_len-1);			*/
-/* Posf *prev = s->prev;						*/
-
-		movzwl	(%scan), %scanstart
-		movzwl	-1(%scan, %bestlen), %scanend
-		mov	dsPrev, %prev
-
-/* Jump into the main loop.						*/
-
-		movl	%chainlenwmask, _chainlenwmask
-		jmp	LoopEntry
-
-.balign 16
-
-/* do {
- *     match = s->window + cur_match;
- *     if (*(ushf*)(match+best_len-1) != scan_end ||
- *         *(ushf*)match != scan_start) continue;
- *     [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- *          && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- */
-LookupLoop:
-		andl	%chainlenwmask, %curmatchd
-		movzwl	(%prev, %curmatch, 2), %curmatchd
-		cmpl	%limitd, %curmatchd
-		jbe	LeaveNow
-		subl	$0x00010000, %chainlenwmask
-		js	LeaveNow
-LoopEntry:	cmpw	-1(%windowbestlen, %curmatch), %scanendw
-		jne	LookupLoop
-		cmpw	%scanstartw, (%window, %curmatch)
-		jne	LookupLoop
-
-/* Store the current value of chainlen.					*/
-		movl	%chainlenwmask, _chainlenwmask
-
-/* %scan is the string under scrutiny, and %prev to the string we	*/
-/* are hoping to match it up with. In actuality, %esi and %edi are	*/
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is	*/
-/* initialized to -(MAX_MATCH_8 - scanalign).				*/
-
-		mov	$(-MAX_MATCH_8), %rdx
-		lea	(%curmatch, %window), %windowbestlen
-		lea	MAX_MATCH_8(%windowbestlen, %scanalign), %windowbestlen
-		lea	MAX_MATCH_8(%scan, %scanalign), %prev
-
-/* the prefetching below makes very little difference... */
-		prefetcht1	(%windowbestlen, %rdx)
-		prefetcht1	(%prev, %rdx)
-
-/*
- * Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %rdx so that it is offset to the exact byte that mismatched.
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance -- unrolling it, for example, makes no difference.
- */
-
-#undef USE_SSE	/* works, but is 6-7% slower, than non-SSE... */
-
-LoopCmps:
-#ifdef USE_SSE
-		/* Preload the SSE registers */
-		movdqu	  (%windowbestlen, %rdx), %xmm1
-		movdqu	  (%prev, %rdx), %xmm2
-		pcmpeqb	%xmm2, %xmm1
-		movdqu	16(%windowbestlen, %rdx), %xmm3
-		movdqu	16(%prev, %rdx), %xmm4
-		pcmpeqb	%xmm4, %xmm3
-		movdqu	32(%windowbestlen, %rdx), %xmm5
-		movdqu	32(%prev, %rdx), %xmm6
-		pcmpeqb	%xmm6, %xmm5
-		movdqu	48(%windowbestlen, %rdx), %xmm7
-		movdqu	48(%prev, %rdx), %xmm8
-		pcmpeqb	%xmm8, %xmm7
-
-		/* Check the comparisions' results */
-		pmovmskb %xmm1, %rax
-		notw	%ax
-		bsfw	%ax, %ax
-		jnz	LeaveLoopCmps
-		
-		/* this is the only iteration of the loop with a possibility of having
-		   incremented rdx by 0x108 (each loop iteration add 16*4 = 0x40 
-		   and (0x40*4)+8=0x108 */
-		add	$8, %rdx
-		jz LenMaximum
-		add	$8, %rdx
-
-		
-		pmovmskb %xmm3, %rax
-		notw	%ax
-		bsfw	%ax, %ax
-		jnz	LeaveLoopCmps
-		
-		
-		add	$16, %rdx
-
-
-		pmovmskb %xmm5, %rax
-		notw	%ax
-		bsfw	%ax, %ax
-		jnz	LeaveLoopCmps
-		
-		add	$16, %rdx
-
-
-		pmovmskb %xmm7, %rax
-		notw	%ax
-		bsfw	%ax, %ax
-		jnz	LeaveLoopCmps
-		
-		add	$16, %rdx
-		
-		jmp	LoopCmps
-LeaveLoopCmps:	add	%rax, %rdx
-#else
-		mov	(%windowbestlen, %rdx), %rax
-		xor	(%prev, %rdx), %rax
-		jnz	LeaveLoopCmps
-		
-		mov	8(%windowbestlen, %rdx), %rax
-		xor	8(%prev, %rdx), %rax
-		jnz	LeaveLoopCmps8
-
-		mov	16(%windowbestlen, %rdx), %rax
-		xor	16(%prev, %rdx), %rax
-		jnz	LeaveLoopCmps16
-				
-		add	$24, %rdx
-		jnz	LoopCmps
-		jmp	LenMaximum
-#	if 0
-/*
- * This three-liner is tantalizingly simple, but bsf is a slow instruction,
- * and the complicated alternative down below is quite a bit faster. Sad...
- */
-
-LeaveLoopCmps:	bsf	%rax, %rax /* find the first non-zero bit */
-		shrl	$3, %eax /* divide by 8 to get the byte */
-		add	%rax, %rdx
-#	else
-LeaveLoopCmps16:
-		add	$8, %rdx
-LeaveLoopCmps8:
-		add	$8, %rdx
-LeaveLoopCmps:	testl   $0xFFFFFFFF, %eax /* Check the first 4 bytes */
-		jnz     Check16
-		add     $4, %rdx
-		shr     $32, %rax
-Check16:        testw   $0xFFFF, %ax
-		jnz     LenLower
-		add	$2, %rdx
-		shrl	$16, %eax
-LenLower:	subb	$1, %al
-		adc	$0, %rdx
-#	endif
-#endif
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH,	*/
-/* then automatically accept it as the best possible match and leave.	*/
-
-		lea	(%prev, %rdx), %rax
-		sub	%scan, %rax
-		cmpl	$MAX_MATCH, %eax
-		jge	LenMaximum
-
-/* If the length of the match is not longer than the best match we	*/
-/* have so far, then forget it and return to the lookup loop.		*/
-
-		cmpl	%bestlend, %eax
-		jg	LongerMatch
-		mov	_windowbestlen, %windowbestlen
-		mov	dsPrev, %prev
-		movl	_chainlenwmask, %edx
-		jmp	LookupLoop
-
-/*         s->match_start = cur_match;					*/
-/*         best_len = len;						*/
-/*         if (len >= nice_match) break;				*/
-/*         scan_end = *(ushf*)(scan+best_len-1);			*/
-
-LongerMatch:
-		movl	%eax, %bestlend
-		movl	%curmatchd, dsMatchStart
-		cmpl	%nicematch, %eax
-		jge	LeaveNow
-
-		lea	(%window, %bestlen), %windowbestlen
-		mov	%windowbestlen, _windowbestlen
-
-		movzwl	-1(%scan, %rax), %scanend
-		mov	dsPrev, %prev
-		movl	_chainlenwmask, %chainlenwmask
-		jmp	LookupLoop
-
-/* Accept the current string, with the maximum possible length.		*/
-
-LenMaximum:
-		movl	$MAX_MATCH, %bestlend
-		movl	%curmatchd, dsMatchStart
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;		*/
-/* return s->lookahead;							*/
-
-LeaveNow:
-		movl	dsLookahead, %eax
-		cmpl	%eax, %bestlend
-		cmovngl	%bestlend, %eax
-LookaheadRet:
-
-/* Restore the registers and return from whence we came.			*/
-
-	mov	save_rsi, %rsi
-	mov	save_rbx, %rbx
-	mov	save_r12, %r12
-	mov	save_r13, %r13
-	mov	save_r14, %r14
-	mov	save_r15, %r15
-
-	ret
-
-match_init:	ret
diff --git a/contrib/asm686/README.686 b/contrib/asm686/README.686
deleted file mode 100644
index a0bf3be..0000000
--- a/contrib/asm686/README.686
+++ /dev/null
@@ -1,51 +0,0 @@
-This is a patched version of zlib, modified to use
-Pentium-Pro-optimized assembly code in the deflation algorithm. The
-files changed/added by this patch are:
-
-README.686
-match.S
-
-The speedup that this patch provides varies, depending on whether the
-compiler used to build the original version of zlib falls afoul of the
-PPro's speed traps. My own tests show a speedup of around 10-20% at
-the default compression level, and 20-30% using -9, against a version
-compiled using gcc 2.7.2.3. Your mileage may vary.
-
-Note that this code has been tailored for the PPro/PII in particular,
-and will not perform particuarly well on a Pentium.
-
-If you are using an assembler other than GNU as, you will have to
-translate match.S to use your assembler's syntax. (Have fun.)
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 1998
-
-
-Added for zlib 1.1.3:
-
-The patches come from
-http://www.muppetlabs.com/~breadbox/software/assembly.html
-
-To compile zlib with this asm file, copy match.S to the zlib directory
-then do:
-
-CFLAGS="-O3 -DASMV" ./configure
-make OBJA=match.o
-
-
-Update:
-
-I've been ignoring these assembly routines for years, believing that
-gcc's generated code had caught up with it sometime around gcc 2.95
-and the major rearchitecting of the Pentium 4. However, I recently
-learned that, despite what I believed, this code still has some life
-in it. On the Pentium 4 and AMD64 chips, it continues to run about 8%
-faster than the code produced by gcc 4.1.
-
-In acknowledgement of its continuing usefulness, I've altered the
-license to match that of the rest of zlib. Share and Enjoy!
-
-Brian Raiter
-breadbox@muppetlabs.com
-April, 2007
diff --git a/contrib/asm686/match.S b/contrib/asm686/match.S
deleted file mode 100644
index fa42109..0000000
--- a/contrib/asm686/match.S
+++ /dev/null
@@ -1,357 +0,0 @@
-/* match.S -- x86 assembly version of the zlib longest_match() function.
- * Optimized for the Intel 686 chips (PPro and later).
- *
- * Copyright (C) 1998, 2007 Brian Raiter <breadbox@muppetlabs.com>
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the author be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software. If you use this software
- *    in a product, an acknowledgment in the product documentation would be
- *    appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- */
-
-#ifndef NO_UNDERLINE
-#define	match_init	_match_init
-#define	longest_match	_longest_match
-#endif
-
-#define	MAX_MATCH	(258)
-#define	MIN_MATCH	(3)
-#define	MIN_LOOKAHEAD	(MAX_MATCH + MIN_MATCH + 1)
-#define	MAX_MATCH_8	((MAX_MATCH + 7) & ~7)
-
-/* stack frame offsets */
-
-#define	chainlenwmask		0	/* high word: current chain len	*/
-					/* low word: s->wmask		*/
-#define	window			4	/* local copy of s->window	*/
-#define	windowbestlen		8	/* s->window + bestlen		*/
-#define	scanstart		16	/* first two bytes of string	*/
-#define	scanend			12	/* last two bytes of string	*/
-#define	scanalign		20	/* dword-misalignment of string	*/
-#define	nicematch		24	/* a good enough match size	*/
-#define	bestlen			28	/* size of best match so far	*/
-#define	scan			32	/* ptr to string wanting match	*/
-
-#define	LocalVarsSize		(36)
-/*	saved ebx		36 */
-/*	saved edi		40 */
-/*	saved esi		44 */
-/*	saved ebp		48 */
-/*	return address		52 */
-#define	deflatestate		56	/* the function arguments	*/
-#define	curmatch		60
-
-/* All the +zlib1222add offsets are due to the addition of fields
- *  in zlib in the deflate_state structure since the asm code was first written
- * (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
- * (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
- * if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
- */
-
-#define zlib1222add		(8)
-
-#define	dsWSize			(36+zlib1222add)
-#define	dsWMask			(44+zlib1222add)
-#define	dsWindow		(48+zlib1222add)
-#define	dsPrev			(56+zlib1222add)
-#define	dsMatchLen		(88+zlib1222add)
-#define	dsPrevMatch		(92+zlib1222add)
-#define	dsStrStart		(100+zlib1222add)
-#define	dsMatchStart		(104+zlib1222add)
-#define	dsLookahead		(108+zlib1222add)
-#define	dsPrevLen		(112+zlib1222add)
-#define	dsMaxChainLen		(116+zlib1222add)
-#define	dsGoodMatch		(132+zlib1222add)
-#define	dsNiceMatch		(136+zlib1222add)
-
-
-.file "match.S"
-
-.globl	match_init, longest_match
-
-.text
-
-/* uInt longest_match(deflate_state *deflatestate, IPos curmatch) */
-.cfi_sections	.debug_frame
-
-longest_match:
-
-.cfi_startproc
-/* Save registers that the compiler may be using, and adjust %esp to	*/
-/* make room for our stack frame.					*/
-
-		pushl	%ebp
-		.cfi_def_cfa_offset 8
-		.cfi_offset ebp, -8
-		pushl	%edi
-		.cfi_def_cfa_offset 12
-		pushl	%esi
-		.cfi_def_cfa_offset 16
-		pushl	%ebx
-		.cfi_def_cfa_offset 20
-		subl	$LocalVarsSize, %esp
-		.cfi_def_cfa_offset LocalVarsSize+20
-
-/* Retrieve the function arguments. %ecx will hold cur_match		*/
-/* throughout the entire function. %edx will hold the pointer to the	*/
-/* deflate_state structure during the function's setup (before		*/
-/* entering the main loop).						*/
-
-		movl	deflatestate(%esp), %edx
-		movl	curmatch(%esp), %ecx
-
-/* uInt wmask = s->w_mask;						*/
-/* unsigned chain_length = s->max_chain_length;				*/
-/* if (s->prev_length >= s->good_match) {				*/
-/*     chain_length >>= 2;						*/
-/* }									*/
- 
-		movl	dsPrevLen(%edx), %eax
-		movl	dsGoodMatch(%edx), %ebx
-		cmpl	%ebx, %eax
-		movl	dsWMask(%edx), %eax
-		movl	dsMaxChainLen(%edx), %ebx
-		jl	LastMatchGood
-		shrl	$2, %ebx
-LastMatchGood:
-
-/* chainlen is decremented once beforehand so that the function can	*/
-/* use the sign flag instead of the zero flag for the exit test.	*/
-/* It is then shifted into the high word, to make room for the wmask	*/
-/* value, which it will always accompany.				*/
-
-		decl	%ebx
-		shll	$16, %ebx
-		orl	%eax, %ebx
-		movl	%ebx, chainlenwmask(%esp)
-
-/* if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;	*/
-
-		movl	dsNiceMatch(%edx), %eax
-		movl	dsLookahead(%edx), %ebx
-		cmpl	%eax, %ebx
-		jl	LookaheadLess
-		movl	%eax, %ebx
-LookaheadLess:	movl	%ebx, nicematch(%esp)
-
-/* register Bytef *scan = s->window + s->strstart;			*/
-
-		movl	dsWindow(%edx), %esi
-		movl	%esi, window(%esp)
-		movl	dsStrStart(%edx), %ebp
-		lea	(%esi,%ebp), %edi
-		movl	%edi, scan(%esp)
-
-/* Determine how many bytes the scan ptr is off from being		*/
-/* dword-aligned.							*/
-
-		movl	%edi, %eax
-		negl	%eax
-		andl	$3, %eax
-		movl	%eax, scanalign(%esp)
-
-/* IPos limit = s->strstart > (IPos)MAX_DIST(s) ?			*/
-/*     s->strstart - (IPos)MAX_DIST(s) : NIL;				*/
-
-		movl	dsWSize(%edx), %eax
-		subl	$MIN_LOOKAHEAD, %eax
-		subl	%eax, %ebp
-		jg	LimitPositive
-		xorl	%ebp, %ebp
-LimitPositive:
-
-/* int best_len = s->prev_length;					*/
-
-		movl	dsPrevLen(%edx), %eax
-		movl	%eax, bestlen(%esp)
-
-/* Store the sum of s->window + best_len in %esi locally, and in %esi.	*/
-
-		addl	%eax, %esi
-		movl	%esi, windowbestlen(%esp)
-
-/* register ush scan_start = *(ushf*)scan;				*/
-/* register ush scan_end   = *(ushf*)(scan+best_len-1);			*/
-/* Posf *prev = s->prev;						*/
-
-		movzwl	(%edi), %ebx
-		movl	%ebx, scanstart(%esp)
-		movzwl	-1(%edi,%eax), %ebx
-		movl	%ebx, scanend(%esp)
-		movl	dsPrev(%edx), %edi
-
-/* Jump into the main loop.						*/
-
-		movl	chainlenwmask(%esp), %edx
-		jmp	LoopEntry
-
-.balign 16
-
-/* do {
- *     match = s->window + cur_match;
- *     if (*(ushf*)(match+best_len-1) != scan_end ||
- *         *(ushf*)match != scan_start) continue;
- *     [...]
- * } while ((cur_match = prev[cur_match & wmask]) > limit
- *          && --chain_length != 0);
- *
- * Here is the inner loop of the function. The function will spend the
- * majority of its time in this loop, and majority of that time will
- * be spent in the first ten instructions.
- *
- * Within this loop:
- * %ebx = scanend
- * %ecx = curmatch
- * %edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
- * %esi = windowbestlen - i.e., (window + bestlen)
- * %edi = prev
- * %ebp = limit
- */
-LookupLoop:
-		andl	%edx, %ecx
-		movzwl	(%edi,%ecx,2), %ecx
-		cmpl	%ebp, %ecx
-		jbe	LeaveNow
-		subl	$0x00010000, %edx
-		js	LeaveNow
-LoopEntry:	movzwl	-1(%esi,%ecx), %eax
-		cmpl	%ebx, %eax
-		jnz	LookupLoop
-		movl	window(%esp), %eax
-		movzwl	(%eax,%ecx), %eax
-		cmpl	scanstart(%esp), %eax
-		jnz	LookupLoop
-
-/* Store the current value of chainlen.					*/
-
-		movl	%edx, chainlenwmask(%esp)
-
-/* Point %edi to the string under scrutiny, and %esi to the string we	*/
-/* are hoping to match it up with. In actuality, %esi and %edi are	*/
-/* both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and %edx is	*/
-/* initialized to -(MAX_MATCH_8 - scanalign).				*/
-
-		movl	window(%esp), %esi
-		movl	scan(%esp), %edi
-		addl	%ecx, %esi
-		movl	scanalign(%esp), %eax
-		movl	$(-MAX_MATCH_8), %edx
-		lea	MAX_MATCH_8(%edi,%eax), %edi
-		lea	MAX_MATCH_8(%esi,%eax), %esi
-
-/* Test the strings for equality, 8 bytes at a time. At the end,
- * adjust %edx so that it is offset to the exact byte that mismatched.
- *
- * We already know at this point that the first three bytes of the
- * strings match each other, and they can be safely passed over before
- * starting the compare loop. So what this code does is skip over 0-3
- * bytes, as much as necessary in order to dword-align the %edi
- * pointer. (%esi will still be misaligned three times out of four.)
- *
- * It should be confessed that this loop usually does not represent
- * much of the total running time. Replacing it with a more
- * straightforward "rep cmpsb" would not drastically degrade
- * performance.
- */
-LoopCmps:
-		movl	(%esi,%edx), %eax
-		xorl	(%edi,%edx), %eax
-		jnz	LeaveLoopCmps
-		movl	4(%esi,%edx), %eax
-		xorl	4(%edi,%edx), %eax
-		jnz	LeaveLoopCmps4
-		addl	$8, %edx
-		jnz	LoopCmps
-		jmp	LenMaximum
-LeaveLoopCmps4:	addl	$4, %edx
-LeaveLoopCmps:	testl	$0x0000FFFF, %eax
-		jnz	LenLower
-		addl	$2, %edx
-		shrl	$16, %eax
-LenLower:	subb	$1, %al
-		adcl	$0, %edx
-
-/* Calculate the length of the match. If it is longer than MAX_MATCH,	*/
-/* then automatically accept it as the best possible match and leave.	*/
-
-		lea	(%edi,%edx), %eax
-		movl	scan(%esp), %edi
-		subl	%edi, %eax
-		cmpl	$MAX_MATCH, %eax
-		jge	LenMaximum
-
-/* If the length of the match is not longer than the best match we	*/
-/* have so far, then forget it and return to the lookup loop.		*/
-
-		movl	deflatestate(%esp), %edx
-		movl	bestlen(%esp), %ebx
-		cmpl	%ebx, %eax
-		jg	LongerMatch
-		movl	windowbestlen(%esp), %esi
-		movl	dsPrev(%edx), %edi
-		movl	scanend(%esp), %ebx
-		movl	chainlenwmask(%esp), %edx
-		jmp	LookupLoop
-
-/*         s->match_start = cur_match;					*/
-/*         best_len = len;						*/
-/*         if (len >= nice_match) break;				*/
-/*         scan_end = *(ushf*)(scan+best_len-1);			*/
-
-LongerMatch:	movl	nicematch(%esp), %ebx
-		movl	%eax, bestlen(%esp)
-		movl	%ecx, dsMatchStart(%edx)
-		cmpl	%ebx, %eax
-		jge	LeaveNow
-		movl	window(%esp), %esi
-		addl	%eax, %esi
-		movl	%esi, windowbestlen(%esp)
-		movzwl	-1(%edi,%eax), %ebx
-		movl	dsPrev(%edx), %edi
-		movl	%ebx, scanend(%esp)
-		movl	chainlenwmask(%esp), %edx
-		jmp	LookupLoop
-
-/* Accept the current string, with the maximum possible length.		*/
-
-LenMaximum:	movl	deflatestate(%esp), %edx
-		movl	$MAX_MATCH, bestlen(%esp)
-		movl	%ecx, dsMatchStart(%edx)
-
-/* if ((uInt)best_len <= s->lookahead) return (uInt)best_len;		*/
-/* return s->lookahead;							*/
-
-LeaveNow:
-		movl	deflatestate(%esp), %edx
-		movl	bestlen(%esp), %ebx
-		movl	dsLookahead(%edx), %eax
-		cmpl	%eax, %ebx
-		jg	LookaheadRet
-		movl	%ebx, %eax
-LookaheadRet:
-
-/* Restore the stack and return from whence we came.			*/
-
-		addl	$LocalVarsSize, %esp
-		.cfi_def_cfa_offset 20
-		popl	%ebx
-		.cfi_def_cfa_offset 16
-		popl	%esi
-		.cfi_def_cfa_offset 12
-		popl	%edi
-		.cfi_def_cfa_offset 8
-		popl	%ebp
-		.cfi_def_cfa_offset 4
-.cfi_endproc
-match_init:	ret
diff --git a/contrib/inflate86/inffas86.c b/contrib/inflate86/inffas86.c
deleted file mode 100644
index 7292f67..0000000
--- a/contrib/inflate86/inffas86.c
+++ /dev/null
@@ -1,1157 +0,0 @@
-/* inffas86.c is a hand tuned assembler version of
- *
- * inffast.c -- fast decoding
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>
- * Please use the copyright conditions above.
- *
- * Dec-29-2003 -- I added AMD64 inflate asm support.  This version is also
- * slightly quicker on x86 systems because, instead of using rep movsb to copy
- * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
- * bytes.  I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
- * from http://fedora.linux.duke.edu/fc1_x86_64
- * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
- * 1GB ram.  The 64-bit version is about 4% faster than the 32-bit version,
- * when decompressing mozilla-source-1.3.tar.gz.
- *
- * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
- * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
- * the moment.  I have successfully compiled and tested this code with gcc2.96,
- * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
- * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
- * enabled.  I will attempt to merge the MMX code into this version.  Newer
- * versions of this and inffast.S can be found at
- * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
- */
-
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-/* Mark Adler's comments from inffast.c: */
-
-/*
-   Decode literal, length, and distance codes and write out the resulting
-   literal and match bytes until either not enough input or output is
-   available, an end-of-block is encountered, or a data error is encountered.
-   When large enough input and output buffers are supplied to inflate(), for
-   example, a 16K input buffer and a 64K output buffer, more than 95% of the
-   inflate execution time is spent in this routine.
-
-   Entry assumptions:
-
-        state->mode == LEN
-        strm->avail_in >= 6
-        strm->avail_out >= 258
-        start >= strm->avail_out
-        state->bits < 8
-
-   On return, state->mode is one of:
-
-        LEN -- ran out of enough output space or enough available input
-        TYPE -- reached end of block code, inflate() to interpret next block
-        BAD -- error in block data
-
-   Notes:
-
-    - The maximum input bits used by a length/distance pair is 15 bits for the
-      length code, 5 bits for the length extra, 15 bits for the distance code,
-      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
-      Therefore if strm->avail_in >= 6, then there is enough input to avoid
-      checking for available input while decoding.
-
-    - The maximum bytes that a single length/distance pair can output is 258
-      bytes, which is the maximum length that can be coded.  inflate_fast()
-      requires strm->avail_out >= 258 for each loop to avoid checking for
-      output space.
- */
-void inflate_fast(strm, start)
-z_streamp strm;
-unsigned start;         /* inflate()'s starting value for strm->avail_out */
-{
-    struct inflate_state FAR *state;
-    struct inffast_ar {
-/* 64   32                               x86  x86_64 */
-/* ar offset                              register */
-/*  0    0 */ void *esp;                /* esp save */
-/*  8    4 */ void *ebp;                /* ebp save */
-/* 16    8 */ unsigned char FAR *in;    /* esi rsi  local strm->next_in */
-/* 24   12 */ unsigned char FAR *last;  /*     r9   while in < last */
-/* 32   16 */ unsigned char FAR *out;   /* edi rdi  local strm->next_out */
-/* 40   20 */ unsigned char FAR *beg;   /*          inflate()'s init next_out */
-/* 48   24 */ unsigned char FAR *end;   /*     r10  while out < end */
-/* 56   28 */ unsigned char FAR *window;/*          size of window, wsize!=0 */
-/* 64   32 */ code const FAR *lcode;    /* ebp rbp  local strm->lencode */
-/* 72   36 */ code const FAR *dcode;    /*     r11  local strm->distcode */
-/* 80   40 */ unsigned long hold;       /* edx rdx  local strm->hold */
-/* 88   44 */ unsigned bits;            /* ebx rbx  local strm->bits */
-/* 92   48 */ unsigned wsize;           /*          window size */
-/* 96   52 */ unsigned write;           /*          window write index */
-/*100   56 */ unsigned lmask;           /*     r12  mask for lcode */
-/*104   60 */ unsigned dmask;           /*     r13  mask for dcode */
-/*108   64 */ unsigned len;             /*     r14  match length */
-/*112   68 */ unsigned dist;            /*     r15  match distance */
-/*116   72 */ unsigned status;          /*          set when state chng*/
-    } ar;
-
-#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
-#define PAD_AVAIL_IN 6
-#define PAD_AVAIL_OUT 258
-#else
-#define PAD_AVAIL_IN 5
-#define PAD_AVAIL_OUT 257
-#endif
-
-    /* copy state to local variables */
-    state = (struct inflate_state FAR *)strm->state;
-    ar.in = strm->next_in;
-    ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
-    ar.out = strm->next_out;
-    ar.beg = ar.out - (start - strm->avail_out);
-    ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
-    ar.wsize = state->wsize;
-    ar.write = state->wnext;
-    ar.window = state->window;
-    ar.hold = state->hold;
-    ar.bits = state->bits;
-    ar.lcode = state->lencode;
-    ar.dcode = state->distcode;
-    ar.lmask = (1U << state->lenbits) - 1;
-    ar.dmask = (1U << state->distbits) - 1;
-
-    /* decode literals and length/distances until end-of-block or not enough
-       input data or output space */
-
-    /* align in on 1/2 hold size boundary */
-    while (((unsigned long)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
-        ar.hold += (unsigned long)*ar.in++ << ar.bits;
-        ar.bits += 8;
-    }
-
-#if defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )
-    __asm__ __volatile__ (
-"        leaq    %0, %%rax\n"
-"        movq    %%rbp, 8(%%rax)\n"       /* save regs rbp and rsp */
-"        movq    %%rsp, (%%rax)\n"
-"        movq    %%rax, %%rsp\n"          /* make rsp point to &ar */
-"        movq    16(%%rsp), %%rsi\n"      /* rsi  = in */
-"        movq    32(%%rsp), %%rdi\n"      /* rdi  = out */
-"        movq    24(%%rsp), %%r9\n"       /* r9   = last */
-"        movq    48(%%rsp), %%r10\n"      /* r10  = end */
-"        movq    64(%%rsp), %%rbp\n"      /* rbp  = lcode */
-"        movq    72(%%rsp), %%r11\n"      /* r11  = dcode */
-"        movq    80(%%rsp), %%rdx\n"      /* rdx  = hold */
-"        movl    88(%%rsp), %%ebx\n"      /* ebx  = bits */
-"        movl    100(%%rsp), %%r12d\n"    /* r12d = lmask */
-"        movl    104(%%rsp), %%r13d\n"    /* r13d = dmask */
-                                          /* r14d = len */
-                                          /* r15d = dist */
-"        cld\n"
-"        cmpq    %%rdi, %%r10\n"
-"        je      .L_one_time\n"           /* if only one decode left */
-"        cmpq    %%rsi, %%r9\n"
-"        je      .L_one_time\n"
-"        jmp     .L_do_loop\n"
-
-".L_one_time:\n"
-"        movq    %%r12, %%r8\n"           /* r8 = lmask */
-"        cmpb    $32, %%bl\n"
-"        ja      .L_get_length_code_one_time\n"
-
-"        lodsl\n"                         /* eax = *(uint *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $32, %%bl\n"             /* bits += 32 */
-"        shlq    %%cl, %%rax\n"
-"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
-"        jmp     .L_get_length_code_one_time\n"
-
-".align 32,0x90\n"
-".L_while_test:\n"
-"        cmpq    %%rdi, %%r10\n"
-"        jbe     .L_break_loop\n"
-"        cmpq    %%rsi, %%r9\n"
-"        jbe     .L_break_loop\n"
-
-".L_do_loop:\n"
-"        movq    %%r12, %%r8\n"           /* r8 = lmask */
-"        cmpb    $32, %%bl\n"
-"        ja      .L_get_length_code\n"    /* if (32 < bits) */
-
-"        lodsl\n"                         /* eax = *(uint *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $32, %%bl\n"             /* bits += 32 */
-"        shlq    %%cl, %%rax\n"
-"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
-
-".L_get_length_code:\n"
-"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
-"        movl    (%%rbp,%%r8,4), %%eax\n"  /* eax = lcode[hold & lmask] */
-
-"        movb    %%ah, %%cl\n"            /* cl = this.bits */
-"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
-"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
-
-"        testb   %%al, %%al\n"
-"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-"        movq    %%r12, %%r8\n"            /* r8 = lmask */
-"        shrl    $16, %%eax\n"            /* output this.val char */
-"        stosb\n"
-
-".L_get_length_code_one_time:\n"
-"        andq    %%rdx, %%r8\n"            /* r8 &= hold */
-"        movl    (%%rbp,%%r8,4), %%eax\n" /* eax = lcode[hold & lmask] */
-
-".L_dolen:\n"
-"        movb    %%ah, %%cl\n"            /* cl = this.bits */
-"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
-"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
-
-"        testb   %%al, %%al\n"
-"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-"        shrl    $16, %%eax\n"            /* output this.val char */
-"        stosb\n"
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_length_base:\n"
-"        movl    %%eax, %%r14d\n"         /* len = this */
-"        shrl    $16, %%r14d\n"           /* len = this.val */
-"        movb    %%al, %%cl\n"
-
-"        testb   $16, %%al\n"
-"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
-"        andb    $15, %%cl\n"             /* op &= 15 */
-"        jz      .L_decode_distance\n"    /* if (!op) */
-
-".L_add_bits_to_len:\n"
-"        subb    %%cl, %%bl\n"
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        shrq    %%cl, %%rdx\n"
-"        addl    %%eax, %%r14d\n"         /* len += hold & mask[op] */
-
-".L_decode_distance:\n"
-"        movq    %%r13, %%r8\n"           /* r8 = dmask */
-"        cmpb    $32, %%bl\n"
-"        ja      .L_get_distance_code\n"  /* if (32 < bits) */
-
-"        lodsl\n"                         /* eax = *(uint *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $32, %%bl\n"             /* bits += 32 */
-"        shlq    %%cl, %%rax\n"
-"        orq     %%rax, %%rdx\n"          /* hold |= *((uint *)in)++ << bits */
-
-".L_get_distance_code:\n"
-"        andq    %%rdx, %%r8\n"           /* r8 &= hold */
-"        movl    (%%r11,%%r8,4), %%eax\n" /* eax = dcode[hold & dmask] */
-
-".L_dodist:\n"
-"        movl    %%eax, %%r15d\n"         /* dist = this */
-"        shrl    $16, %%r15d\n"           /* dist = this.val */
-"        movb    %%ah, %%cl\n"
-"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
-"        shrq    %%cl, %%rdx\n"           /* hold >>= this.bits */
-"        movb    %%al, %%cl\n"            /* cl = this.op */
-
-"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
-"        jz      .L_test_for_second_level_dist\n"
-"        andb    $15, %%cl\n"             /* op &= 15 */
-"        jz      .L_check_dist_one\n"
-
-".L_add_bits_to_dist:\n"
-"        subb    %%cl, %%bl\n"
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"                 /* (1 << op) - 1 */
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        shrq    %%cl, %%rdx\n"
-"        addl    %%eax, %%r15d\n"         /* dist += hold & ((1 << op) - 1) */
-
-".L_check_window:\n"
-"        movq    %%rsi, %%r8\n"           /* save in so from can use it's reg */
-"        movq    %%rdi, %%rax\n"
-"        subq    40(%%rsp), %%rax\n"      /* nbytes = out - beg */
-
-"        cmpl    %%r15d, %%eax\n"
-"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
-
-"        movl    %%r14d, %%ecx\n"         /* ecx = len */
-"        movq    %%rdi, %%rsi\n"
-"        subq    %%r15, %%rsi\n"          /* from = out - dist */
-
-"        sarl    %%ecx\n"
-"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
-
-"        rep     movsw\n"
-"        movb    (%%rsi), %%al\n"
-"        movb    %%al, (%%rdi)\n"
-"        incq    %%rdi\n"
-
-"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
-"        jmp     .L_while_test\n"
-
-".L_copy_two:\n"
-"        rep     movsw\n"
-"        movq    %%r8, %%rsi\n"           /* move in back to %rsi, toss from */
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_check_dist_one:\n"
-"        cmpl    $1, %%r15d\n"            /* if dist 1, is a memset */
-"        jne     .L_check_window\n"
-"        cmpq    %%rdi, 40(%%rsp)\n"      /* if out == beg, outside window */
-"        je      .L_check_window\n"
-
-"        movl    %%r14d, %%ecx\n"         /* ecx = len */
-"        movb    -1(%%rdi), %%al\n"
-"        movb    %%al, %%ah\n"
-
-"        sarl    %%ecx\n"
-"        jnc     .L_set_two\n"
-"        movb    %%al, (%%rdi)\n"
-"        incq    %%rdi\n"
-
-".L_set_two:\n"
-"        rep     stosw\n"
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_length:\n"
-"        testb   $64, %%al\n"
-"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
-
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"         /* eax &= hold */
-"        addl    %%r14d, %%eax\n"        /* eax += len */
-"        movl    (%%rbp,%%rax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
-"        jmp     .L_dolen\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_dist:\n"
-"        testb   $64, %%al\n"
-"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
-
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"         /* eax &= hold */
-"        addl    %%r15d, %%eax\n"        /* eax += dist */
-"        movl    (%%r11,%%rax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
-"        jmp     .L_dodist\n"
-
-".align 32,0x90\n"
-".L_clip_window:\n"
-"        movl    %%eax, %%ecx\n"         /* ecx = nbytes */
-"        movl    92(%%rsp), %%eax\n"     /* eax = wsize, prepare for dist cmp */
-"        negl    %%ecx\n"                /* nbytes = -nbytes */
-
-"        cmpl    %%r15d, %%eax\n"
-"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
-
-"        addl    %%r15d, %%ecx\n"         /* nbytes = dist - nbytes */
-"        cmpl    $0, 96(%%rsp)\n"
-"        jne     .L_wrap_around_window\n" /* if (write != 0) */
-
-"        movq    56(%%rsp), %%rsi\n"     /* from  = window */
-"        subl    %%ecx, %%eax\n"         /* eax  -= nbytes */
-"        addq    %%rax, %%rsi\n"         /* from += wsize - nbytes */
-
-"        movl    %%r14d, %%eax\n"        /* eax = len */
-"        cmpl    %%ecx, %%r14d\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* eax -= nbytes */
-"        rep     movsb\n"
-"        movq    %%rdi, %%rsi\n"
-"        subq    %%r15, %%rsi\n"         /* from = &out[ -dist ] */
-"        jmp     .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_wrap_around_window:\n"
-"        movl    96(%%rsp), %%eax\n"     /* eax = write */
-"        cmpl    %%eax, %%ecx\n"
-"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
-
-"        movl    92(%%rsp), %%esi\n"     /* from  = wsize */
-"        addq    56(%%rsp), %%rsi\n"     /* from += window */
-"        addq    %%rax, %%rsi\n"         /* from += write */
-"        subq    %%rcx, %%rsi\n"         /* from -= nbytes */
-"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
-
-"        movl    %%r14d, %%eax\n"        /* eax = len */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movq    56(%%rsp), %%rsi\n"     /* from = window */
-"        movl    96(%%rsp), %%ecx\n"     /* nbytes = write */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movq    %%rdi, %%rsi\n"
-"        subq    %%r15, %%rsi\n"         /* from = out - dist */
-"        jmp     .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_contiguous_in_window:\n"
-"        movq    56(%%rsp), %%rsi\n"     /* rsi = window */
-"        addq    %%rax, %%rsi\n"
-"        subq    %%rcx, %%rsi\n"         /* from += write - nbytes */
-
-"        movl    %%r14d, %%eax\n"        /* eax = len */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movq    %%rdi, %%rsi\n"
-"        subq    %%r15, %%rsi\n"         /* from = out - dist */
-"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
-
-".align 32,0x90\n"
-".L_do_copy:\n"
-"        movl    %%eax, %%ecx\n"         /* ecx = len */
-"        rep     movsb\n"
-
-"        movq    %%r8, %%rsi\n"          /* move in back to %esi, toss from */
-"        jmp     .L_while_test\n"
-
-".L_test_for_end_of_block:\n"
-"        testb   $32, %%al\n"
-"        jz      .L_invalid_literal_length_code\n"
-"        movl    $1, 116(%%rsp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_literal_length_code:\n"
-"        movl    $2, 116(%%rsp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_distance_code:\n"
-"        movl    $3, 116(%%rsp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_distance_too_far:\n"
-"        movl    $4, 116(%%rsp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_break_loop:\n"
-"        movl    $0, 116(%%rsp)\n"
-
-".L_break_loop_with_status:\n"
-/* put in, out, bits, and hold back into ar and pop esp */
-"        movq    %%rsi, 16(%%rsp)\n"     /* in */
-"        movq    %%rdi, 32(%%rsp)\n"     /* out */
-"        movl    %%ebx, 88(%%rsp)\n"     /* bits */
-"        movq    %%rdx, 80(%%rsp)\n"     /* hold */
-"        movq    (%%rsp), %%rax\n"       /* restore rbp and rsp */
-"        movq    8(%%rsp), %%rbp\n"
-"        movq    %%rax, %%rsp\n"
-          :
-          : "m" (ar)
-          : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
-            "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
-    );
-#elif ( defined( __GNUC__ ) || defined( __ICC ) ) && defined( __i386 )
-    __asm__ __volatile__ (
-"        leal    %0, %%eax\n"
-"        movl    %%esp, (%%eax)\n"        /* save esp, ebp */
-"        movl    %%ebp, 4(%%eax)\n"
-"        movl    %%eax, %%esp\n"
-"        movl    8(%%esp), %%esi\n"       /* esi = in */
-"        movl    16(%%esp), %%edi\n"      /* edi = out */
-"        movl    40(%%esp), %%edx\n"      /* edx = hold */
-"        movl    44(%%esp), %%ebx\n"      /* ebx = bits */
-"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
-
-"        cld\n"
-"        jmp     .L_do_loop\n"
-
-".align 32,0x90\n"
-".L_while_test:\n"
-"        cmpl    %%edi, 24(%%esp)\n"      /* out < end */
-"        jbe     .L_break_loop\n"
-"        cmpl    %%esi, 12(%%esp)\n"      /* in < last */
-"        jbe     .L_break_loop\n"
-
-".L_do_loop:\n"
-"        cmpb    $15, %%bl\n"
-"        ja      .L_get_length_code\n"    /* if (15 < bits) */
-
-"        xorl    %%eax, %%eax\n"
-"        lodsw\n"                         /* al = *(ushort *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $16, %%bl\n"             /* bits += 16 */
-"        shll    %%cl, %%eax\n"
-"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
-
-".L_get_length_code:\n"
-"        movl    56(%%esp), %%eax\n"      /* eax = lmask */
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[hold & lmask] */
-
-".L_dolen:\n"
-"        movb    %%ah, %%cl\n"            /* cl = this.bits */
-"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
-"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
-
-"        testb   %%al, %%al\n"
-"        jnz     .L_test_for_length_base\n" /* if (op != 0) 45.7% */
-
-"        shrl    $16, %%eax\n"            /* output this.val char */
-"        stosb\n"
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_length_base:\n"
-"        movl    %%eax, %%ecx\n"          /* len = this */
-"        shrl    $16, %%ecx\n"            /* len = this.val */
-"        movl    %%ecx, 64(%%esp)\n"      /* save len */
-"        movb    %%al, %%cl\n"
-
-"        testb   $16, %%al\n"
-"        jz      .L_test_for_second_level_length\n" /* if ((op & 16) == 0) 8% */
-"        andb    $15, %%cl\n"             /* op &= 15 */
-"        jz      .L_decode_distance\n"    /* if (!op) */
-"        cmpb    %%cl, %%bl\n"
-"        jae     .L_add_bits_to_len\n"    /* if (op <= bits) */
-
-"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
-"        xorl    %%eax, %%eax\n"
-"        lodsw\n"                         /* al = *(ushort *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $16, %%bl\n"             /* bits += 16 */
-"        shll    %%cl, %%eax\n"
-"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
-"        movb    %%ch, %%cl\n"            /* move op back to ecx */
-
-".L_add_bits_to_len:\n"
-"        subb    %%cl, %%bl\n"
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        shrl    %%cl, %%edx\n"
-"        addl    %%eax, 64(%%esp)\n"      /* len += hold & mask[op] */
-
-".L_decode_distance:\n"
-"        cmpb    $15, %%bl\n"
-"        ja      .L_get_distance_code\n"  /* if (15 < bits) */
-
-"        xorl    %%eax, %%eax\n"
-"        lodsw\n"                         /* al = *(ushort *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $16, %%bl\n"             /* bits += 16 */
-"        shll    %%cl, %%eax\n"
-"        orl     %%eax, %%edx\n"         /* hold |= *((ushort *)in)++ << bits */
-
-".L_get_distance_code:\n"
-"        movl    60(%%esp), %%eax\n"      /* eax = dmask */
-"        movl    36(%%esp), %%ecx\n"      /* ecx = dcode */
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        movl    (%%ecx,%%eax,4), %%eax\n"/* eax = dcode[hold & dmask] */
-
-".L_dodist:\n"
-"        movl    %%eax, %%ebp\n"          /* dist = this */
-"        shrl    $16, %%ebp\n"            /* dist = this.val */
-"        movb    %%ah, %%cl\n"
-"        subb    %%ah, %%bl\n"            /* bits -= this.bits */
-"        shrl    %%cl, %%edx\n"           /* hold >>= this.bits */
-"        movb    %%al, %%cl\n"            /* cl = this.op */
-
-"        testb   $16, %%al\n"             /* if ((op & 16) == 0) */
-"        jz      .L_test_for_second_level_dist\n"
-"        andb    $15, %%cl\n"             /* op &= 15 */
-"        jz      .L_check_dist_one\n"
-"        cmpb    %%cl, %%bl\n"
-"        jae     .L_add_bits_to_dist\n"   /* if (op <= bits) 97.6% */
-
-"        movb    %%cl, %%ch\n"            /* stash op in ch, freeing cl */
-"        xorl    %%eax, %%eax\n"
-"        lodsw\n"                         /* al = *(ushort *)in++ */
-"        movb    %%bl, %%cl\n"            /* cl = bits, needs it for shifting */
-"        addb    $16, %%bl\n"             /* bits += 16 */
-"        shll    %%cl, %%eax\n"
-"        orl     %%eax, %%edx\n"        /* hold |= *((ushort *)in)++ << bits */
-"        movb    %%ch, %%cl\n"            /* move op back to ecx */
-
-".L_add_bits_to_dist:\n"
-"        subb    %%cl, %%bl\n"
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"                 /* (1 << op) - 1 */
-"        andl    %%edx, %%eax\n"          /* eax &= hold */
-"        shrl    %%cl, %%edx\n"
-"        addl    %%eax, %%ebp\n"          /* dist += hold & ((1 << op) - 1) */
-
-".L_check_window:\n"
-"        movl    %%esi, 8(%%esp)\n"       /* save in so from can use it's reg */
-"        movl    %%edi, %%eax\n"
-"        subl    20(%%esp), %%eax\n"      /* nbytes = out - beg */
-
-"        cmpl    %%ebp, %%eax\n"
-"        jb      .L_clip_window\n"        /* if (dist > nbytes) 4.2% */
-
-"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
-"        movl    %%edi, %%esi\n"
-"        subl    %%ebp, %%esi\n"          /* from = out - dist */
-
-"        sarl    %%ecx\n"
-"        jnc     .L_copy_two\n"           /* if len % 2 == 0 */
-
-"        rep     movsw\n"
-"        movb    (%%esi), %%al\n"
-"        movb    %%al, (%%edi)\n"
-"        incl    %%edi\n"
-
-"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
-"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
-"        jmp     .L_while_test\n"
-
-".L_copy_two:\n"
-"        rep     movsw\n"
-"        movl    8(%%esp), %%esi\n"       /* move in back to %esi, toss from */
-"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_check_dist_one:\n"
-"        cmpl    $1, %%ebp\n"            /* if dist 1, is a memset */
-"        jne     .L_check_window\n"
-"        cmpl    %%edi, 20(%%esp)\n"
-"        je      .L_check_window\n"      /* out == beg, if outside window */
-
-"        movl    64(%%esp), %%ecx\n"      /* ecx = len */
-"        movb    -1(%%edi), %%al\n"
-"        movb    %%al, %%ah\n"
-
-"        sarl    %%ecx\n"
-"        jnc     .L_set_two\n"
-"        movb    %%al, (%%edi)\n"
-"        incl    %%edi\n"
-
-".L_set_two:\n"
-"        rep     stosw\n"
-"        movl    32(%%esp), %%ebp\n"      /* ebp = lcode */
-"        jmp     .L_while_test\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_length:\n"
-"        testb   $64, %%al\n"
-"        jnz     .L_test_for_end_of_block\n" /* if ((op & 64) != 0) */
-
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"         /* eax &= hold */
-"        addl    64(%%esp), %%eax\n"     /* eax += len */
-"        movl    (%%ebp,%%eax,4), %%eax\n" /* eax = lcode[val+(hold&mask[op])]*/
-"        jmp     .L_dolen\n"
-
-".align 32,0x90\n"
-".L_test_for_second_level_dist:\n"
-"        testb   $64, %%al\n"
-"        jnz     .L_invalid_distance_code\n" /* if ((op & 64) != 0) */
-
-"        xorl    %%eax, %%eax\n"
-"        incl    %%eax\n"
-"        shll    %%cl, %%eax\n"
-"        decl    %%eax\n"
-"        andl    %%edx, %%eax\n"         /* eax &= hold */
-"        addl    %%ebp, %%eax\n"         /* eax += dist */
-"        movl    36(%%esp), %%ecx\n"     /* ecx = dcode */
-"        movl    (%%ecx,%%eax,4), %%eax\n" /* eax = dcode[val+(hold&mask[op])]*/
-"        jmp     .L_dodist\n"
-
-".align 32,0x90\n"
-".L_clip_window:\n"
-"        movl    %%eax, %%ecx\n"
-"        movl    48(%%esp), %%eax\n"     /* eax = wsize */
-"        negl    %%ecx\n"                /* nbytes = -nbytes */
-"        movl    28(%%esp), %%esi\n"     /* from = window */
-
-"        cmpl    %%ebp, %%eax\n"
-"        jb      .L_invalid_distance_too_far\n" /* if (dist > wsize) */
-
-"        addl    %%ebp, %%ecx\n"         /* nbytes = dist - nbytes */
-"        cmpl    $0, 52(%%esp)\n"
-"        jne     .L_wrap_around_window\n" /* if (write != 0) */
-
-"        subl    %%ecx, %%eax\n"
-"        addl    %%eax, %%esi\n"         /* from += wsize - nbytes */
-
-"        movl    64(%%esp), %%eax\n"     /* eax = len */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movl    %%edi, %%esi\n"
-"        subl    %%ebp, %%esi\n"         /* from = out - dist */
-"        jmp     .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_wrap_around_window:\n"
-"        movl    52(%%esp), %%eax\n"     /* eax = write */
-"        cmpl    %%eax, %%ecx\n"
-"        jbe     .L_contiguous_in_window\n" /* if (write >= nbytes) */
-
-"        addl    48(%%esp), %%esi\n"     /* from += wsize */
-"        addl    %%eax, %%esi\n"         /* from += write */
-"        subl    %%ecx, %%esi\n"         /* from -= nbytes */
-"        subl    %%eax, %%ecx\n"         /* nbytes -= write */
-
-"        movl    64(%%esp), %%eax\n"     /* eax = len */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movl    28(%%esp), %%esi\n"     /* from = window */
-"        movl    52(%%esp), %%ecx\n"     /* nbytes = write */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movl    %%edi, %%esi\n"
-"        subl    %%ebp, %%esi\n"         /* from = out - dist */
-"        jmp     .L_do_copy\n"
-
-".align 32,0x90\n"
-".L_contiguous_in_window:\n"
-"        addl    %%eax, %%esi\n"
-"        subl    %%ecx, %%esi\n"         /* from += write - nbytes */
-
-"        movl    64(%%esp), %%eax\n"     /* eax = len */
-"        cmpl    %%ecx, %%eax\n"
-"        jbe     .L_do_copy\n"           /* if (nbytes >= len) */
-
-"        subl    %%ecx, %%eax\n"         /* len -= nbytes */
-"        rep     movsb\n"
-"        movl    %%edi, %%esi\n"
-"        subl    %%ebp, %%esi\n"         /* from = out - dist */
-"        jmp     .L_do_copy\n"           /* if (nbytes >= len) */
-
-".align 32,0x90\n"
-".L_do_copy:\n"
-"        movl    %%eax, %%ecx\n"
-"        rep     movsb\n"
-
-"        movl    8(%%esp), %%esi\n"      /* move in back to %esi, toss from */
-"        movl    32(%%esp), %%ebp\n"     /* ebp = lcode */
-"        jmp     .L_while_test\n"
-
-".L_test_for_end_of_block:\n"
-"        testb   $32, %%al\n"
-"        jz      .L_invalid_literal_length_code\n"
-"        movl    $1, 72(%%esp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_literal_length_code:\n"
-"        movl    $2, 72(%%esp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_distance_code:\n"
-"        movl    $3, 72(%%esp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_invalid_distance_too_far:\n"
-"        movl    8(%%esp), %%esi\n"
-"        movl    $4, 72(%%esp)\n"
-"        jmp     .L_break_loop_with_status\n"
-
-".L_break_loop:\n"
-"        movl    $0, 72(%%esp)\n"
-
-".L_break_loop_with_status:\n"
-/* put in, out, bits, and hold back into ar and pop esp */
-"        movl    %%esi, 8(%%esp)\n"      /* save in */
-"        movl    %%edi, 16(%%esp)\n"     /* save out */
-"        movl    %%ebx, 44(%%esp)\n"     /* save bits */
-"        movl    %%edx, 40(%%esp)\n"     /* save hold */
-"        movl    4(%%esp), %%ebp\n"      /* restore esp, ebp */
-"        movl    (%%esp), %%esp\n"
-          :
-          : "m" (ar)
-          : "memory", "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
-    );
-#elif defined( _MSC_VER ) && ! defined( _M_AMD64 )
-    __asm {
-	lea	eax, ar
-	mov	[eax], esp         /* save esp, ebp */
-	mov	[eax+4], ebp
-	mov	esp, eax
-	mov	esi, [esp+8]       /* esi = in */
-	mov	edi, [esp+16]      /* edi = out */
-	mov	edx, [esp+40]      /* edx = hold */
-	mov	ebx, [esp+44]      /* ebx = bits */
-	mov	ebp, [esp+32]      /* ebp = lcode */
-
-	cld
-	jmp	L_do_loop
-
-ALIGN 4
-L_while_test:
-	cmp	[esp+24], edi
-	jbe	L_break_loop
-	cmp	[esp+12], esi
-	jbe	L_break_loop
-
-L_do_loop:
-	cmp	bl, 15
-	ja	L_get_length_code    /* if (15 < bits) */
-
-	xor	eax, eax
-	lodsw                         /* al = *(ushort *)in++ */
-	mov	cl, bl            /* cl = bits, needs it for shifting */
-	add	bl, 16             /* bits += 16 */
-	shl	eax, cl
-	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
-
-L_get_length_code:
-	mov	eax, [esp+56]      /* eax = lmask */
-	and	eax, edx          /* eax &= hold */
-	mov	eax, [ebp+eax*4] /* eax = lcode[hold & lmask] */
-
-L_dolen:
-	mov	cl, ah            /* cl = this.bits */
-	sub	bl, ah            /* bits -= this.bits */
-	shr	edx, cl           /* hold >>= this.bits */
-
-	test	al, al
-	jnz	L_test_for_length_base /* if (op != 0) 45.7% */
-
-	shr	eax, 16            /* output this.val char */
-	stosb
-	jmp	L_while_test
-
-ALIGN 4
-L_test_for_length_base:
-	mov	ecx, eax          /* len = this */
-	shr	ecx, 16            /* len = this.val */
-	mov	[esp+64], ecx      /* save len */
-	mov	cl, al
-
-	test	al, 16
-	jz	L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
-	and	cl, 15             /* op &= 15 */
-	jz	L_decode_distance    /* if (!op) */
-	cmp	bl, cl
-	jae	L_add_bits_to_len    /* if (op <= bits) */
-
-	mov	ch, cl            /* stash op in ch, freeing cl */
-	xor	eax, eax
-	lodsw                         /* al = *(ushort *)in++ */
-	mov	cl, bl            /* cl = bits, needs it for shifting */
-	add	bl, 16             /* bits += 16 */
-	shl	eax, cl
-	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
-	mov	cl, ch            /* move op back to ecx */
-
-L_add_bits_to_len:
-	sub	bl, cl
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx          /* eax &= hold */
-	shr	edx, cl
-	add	[esp+64], eax      /* len += hold & mask[op] */
-
-L_decode_distance:
-	cmp	bl, 15
-	ja	L_get_distance_code  /* if (15 < bits) */
-
-	xor	eax, eax
-	lodsw                         /* al = *(ushort *)in++ */
-	mov	cl, bl            /* cl = bits, needs it for shifting */
-	add	bl, 16             /* bits += 16 */
-	shl	eax, cl
-	or	edx, eax         /* hold |= *((ushort *)in)++ << bits */
-
-L_get_distance_code:
-	mov	eax, [esp+60]      /* eax = dmask */
-	mov	ecx, [esp+36]      /* ecx = dcode */
-	and	eax, edx          /* eax &= hold */
-	mov	eax, [ecx+eax*4]/* eax = dcode[hold & dmask] */
-
-L_dodist:
-	mov	ebp, eax          /* dist = this */
-	shr	ebp, 16            /* dist = this.val */
-	mov	cl, ah
-	sub	bl, ah            /* bits -= this.bits */
-	shr	edx, cl           /* hold >>= this.bits */
-	mov	cl, al            /* cl = this.op */
-
-	test	al, 16             /* if ((op & 16) == 0) */
-	jz	L_test_for_second_level_dist
-	and	cl, 15             /* op &= 15 */
-	jz	L_check_dist_one
-	cmp	bl, cl
-	jae	L_add_bits_to_dist   /* if (op <= bits) 97.6% */
-
-	mov	ch, cl            /* stash op in ch, freeing cl */
-	xor	eax, eax
-	lodsw                         /* al = *(ushort *)in++ */
-	mov	cl, bl            /* cl = bits, needs it for shifting */
-	add	bl, 16             /* bits += 16 */
-	shl	eax, cl
-	or	edx, eax        /* hold |= *((ushort *)in)++ << bits */
-	mov	cl, ch            /* move op back to ecx */
-
-L_add_bits_to_dist:
-	sub	bl, cl
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax                 /* (1 << op) - 1 */
-	and	eax, edx          /* eax &= hold */
-	shr	edx, cl
-	add	ebp, eax          /* dist += hold & ((1 << op) - 1) */
-
-L_check_window:
-	mov	[esp+8], esi       /* save in so from can use it's reg */
-	mov	eax, edi
-	sub	eax, [esp+20]      /* nbytes = out - beg */
-
-	cmp	eax, ebp
-	jb	L_clip_window        /* if (dist > nbytes) 4.2% */
-
-	mov	ecx, [esp+64]      /* ecx = len */
-	mov	esi, edi
-	sub	esi, ebp          /* from = out - dist */
-
-	sar	ecx, 1
-	jnc	L_copy_two
-
-	rep     movsw
-	mov	al, [esi]
-	mov	[edi], al
-	inc	edi
-
-	mov	esi, [esp+8]      /* move in back to %esi, toss from */
-	mov	ebp, [esp+32]     /* ebp = lcode */
-	jmp	L_while_test
-
-L_copy_two:
-	rep     movsw
-	mov	esi, [esp+8]      /* move in back to %esi, toss from */
-	mov	ebp, [esp+32]     /* ebp = lcode */
-	jmp	L_while_test
-
-ALIGN 4
-L_check_dist_one:
-	cmp	ebp, 1            /* if dist 1, is a memset */
-	jne	L_check_window
-	cmp	[esp+20], edi
-	je	L_check_window    /* out == beg, if outside window */
-
-	mov	ecx, [esp+64]     /* ecx = len */
-	mov	al, [edi-1]
-	mov	ah, al
-
-	sar	ecx, 1
-	jnc	L_set_two
-	mov	[edi], al         /* memset out with from[-1] */
-	inc	edi
-
-L_set_two:
-	rep     stosw
-	mov	ebp, [esp+32]     /* ebp = lcode */
-	jmp	L_while_test
-
-ALIGN 4
-L_test_for_second_level_length:
-	test	al, 64
-	jnz	L_test_for_end_of_block /* if ((op & 64) != 0) */
-
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx         /* eax &= hold */
-	add	eax, [esp+64]     /* eax += len */
-	mov	eax, [ebp+eax*4] /* eax = lcode[val+(hold&mask[op])]*/
-	jmp	L_dolen
-
-ALIGN 4
-L_test_for_second_level_dist:
-	test	al, 64
-	jnz	L_invalid_distance_code /* if ((op & 64) != 0) */
-
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx         /* eax &= hold */
-	add	eax, ebp         /* eax += dist */
-	mov	ecx, [esp+36]     /* ecx = dcode */
-	mov	eax, [ecx+eax*4] /* eax = dcode[val+(hold&mask[op])]*/
-	jmp	L_dodist
-
-ALIGN 4
-L_clip_window:
-	mov	ecx, eax
-	mov	eax, [esp+48]     /* eax = wsize */
-	neg	ecx                /* nbytes = -nbytes */
-	mov	esi, [esp+28]     /* from = window */
-
-	cmp	eax, ebp
-	jb	L_invalid_distance_too_far /* if (dist > wsize) */
-
-	add	ecx, ebp         /* nbytes = dist - nbytes */
-	cmp	dword ptr [esp+52], 0
-	jne	L_wrap_around_window /* if (write != 0) */
-
-	sub	eax, ecx
-	add	esi, eax         /* from += wsize - nbytes */
-
-	mov	eax, [esp+64]    /* eax = len */
-	cmp	eax, ecx
-	jbe	L_do_copy          /* if (nbytes >= len) */
-
-	sub	eax, ecx         /* len -= nbytes */
-	rep     movsb
-	mov	esi, edi
-	sub	esi, ebp         /* from = out - dist */
-	jmp	L_do_copy
-
-ALIGN 4
-L_wrap_around_window:
-	mov	eax, [esp+52]    /* eax = write */
-	cmp	ecx, eax
-	jbe	L_contiguous_in_window /* if (write >= nbytes) */
-
-	add	esi, [esp+48]    /* from += wsize */
-	add	esi, eax         /* from += write */
-	sub	esi, ecx         /* from -= nbytes */
-	sub	ecx, eax         /* nbytes -= write */
-
-	mov	eax, [esp+64]    /* eax = len */
-	cmp	eax, ecx
-	jbe	L_do_copy          /* if (nbytes >= len) */
-
-	sub	eax, ecx         /* len -= nbytes */
-	rep     movsb
-	mov	esi, [esp+28]     /* from = window */
-	mov	ecx, [esp+52]     /* nbytes = write */
-	cmp	eax, ecx
-	jbe	L_do_copy          /* if (nbytes >= len) */
-
-	sub	eax, ecx         /* len -= nbytes */
-	rep     movsb
-	mov	esi, edi
-	sub	esi, ebp         /* from = out - dist */
-	jmp	L_do_copy
-
-ALIGN 4
-L_contiguous_in_window:
-	add	esi, eax
-	sub	esi, ecx         /* from += write - nbytes */
-
-	mov	eax, [esp+64]    /* eax = len */
-	cmp	eax, ecx
-	jbe	L_do_copy          /* if (nbytes >= len) */
-
-	sub	eax, ecx         /* len -= nbytes */
-	rep     movsb
-	mov	esi, edi
-	sub	esi, ebp         /* from = out - dist */
-	jmp	L_do_copy
-
-ALIGN 4
-L_do_copy:
-	mov	ecx, eax
-	rep     movsb
-
-	mov	esi, [esp+8]      /* move in back to %esi, toss from */
-	mov	ebp, [esp+32]     /* ebp = lcode */
-	jmp	L_while_test
-
-L_test_for_end_of_block:
-	test	al, 32
-	jz	L_invalid_literal_length_code
-	mov	dword ptr [esp+72], 1
-	jmp	L_break_loop_with_status
-
-L_invalid_literal_length_code:
-	mov	dword ptr [esp+72], 2
-	jmp	L_break_loop_with_status
-
-L_invalid_distance_code:
-	mov	dword ptr [esp+72], 3
-	jmp	L_break_loop_with_status
-
-L_invalid_distance_too_far:
-	mov	esi, [esp+4]
-	mov	dword ptr [esp+72], 4
-	jmp	L_break_loop_with_status
-
-L_break_loop:
-	mov	dword ptr [esp+72], 0
-
-L_break_loop_with_status:
-/* put in, out, bits, and hold back into ar and pop esp */
-	mov	[esp+8], esi     /* save in */
-	mov	[esp+16], edi    /* save out */
-	mov	[esp+44], ebx    /* save bits */
-	mov	[esp+40], edx    /* save hold */
-	mov	ebp, [esp+4]     /* restore esp, ebp */
-	mov	esp, [esp]
-    }
-#else
-#error "x86 architecture not defined"
-#endif
-
-    if (ar.status > 1) {
-        if (ar.status == 2)
-            strm->msg = "invalid literal/length code";
-        else if (ar.status == 3)
-            strm->msg = "invalid distance code";
-        else
-            strm->msg = "invalid distance too far back";
-        state->mode = BAD;
-    }
-    else if ( ar.status == 1 ) {
-        state->mode = TYPE;
-    }
-
-    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
-    ar.len = ar.bits >> 3;
-    ar.in -= ar.len;
-    ar.bits -= ar.len << 3;
-    ar.hold &= (1U << ar.bits) - 1;
-
-    /* update state and return */
-    strm->next_in = ar.in;
-    strm->next_out = ar.out;
-    strm->avail_in = (unsigned)(ar.in < ar.last ?
-                                PAD_AVAIL_IN + (ar.last - ar.in) :
-                                PAD_AVAIL_IN - (ar.in - ar.last));
-    strm->avail_out = (unsigned)(ar.out < ar.end ?
-                                 PAD_AVAIL_OUT + (ar.end - ar.out) :
-                                 PAD_AVAIL_OUT - (ar.out - ar.end));
-    state->hold = ar.hold;
-    state->bits = ar.bits;
-    return;
-}
-
diff --git a/contrib/inflate86/inffast.S b/contrib/inflate86/inffast.S
deleted file mode 100644
index 2245a29..0000000
--- a/contrib/inflate86/inffast.S
+++ /dev/null
@@ -1,1368 +0,0 @@
-/*
- * inffast.S is a hand tuned assembler version of:
- *
- * inffast.c -- fast decoding
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>
- * Please use the copyright conditions above.
- *
- * This version (Jan-23-2003) of inflate_fast was coded and tested under
- * GNU/Linux on a pentium 3, using the gcc-3.2 compiler distribution.  On that
- * machine, I found that gzip style archives decompressed about 20% faster than
- * the gcc-3.2 -O3 -fomit-frame-pointer compiled version.  Your results will
- * depend on how large of a buffer is used for z_stream.next_in & next_out
- * (8K-32K worked best for my 256K cpu cache) and how much overhead there is in
- * stream processing I/O and crc32/addler32.  In my case, this routine used
- * 70% of the cpu time and crc32 used 20%.
- *
- * I am confident that this version will work in the general case, but I have
- * not tested a wide variety of datasets or a wide variety of platforms.
- *
- * Jan-24-2003 -- Added -DUSE_MMX define for slightly faster inflating.
- * It should be a runtime flag instead of compile time flag...
- *
- * Jan-26-2003 -- Added runtime check for MMX support with cpuid instruction.
- * With -DUSE_MMX, only MMX code is compiled.  With -DNO_MMX, only non-MMX code
- * is compiled.  Without either option, runtime detection is enabled.  Runtime
- * detection should work on all modern cpus and the recomended algorithm (flip
- * ID bit on eflags and then use the cpuid instruction) is used in many
- * multimedia applications.  Tested under win2k with gcc-2.95 and gas-2.12
- * distributed with cygwin3.  Compiling with gcc-2.95 -c inffast.S -o
- * inffast.obj generates a COFF object which can then be linked with MSVC++
- * compiled code.  Tested under FreeBSD 4.7 with gcc-2.95.
- *
- * Jan-28-2003 -- Tested Athlon XP... MMX mode is slower than no MMX (and
- * slower than compiler generated code).  Adjusted cpuid check to use the MMX
- * code only for Pentiums < P4 until I have more data on the P4.  Speed
- * improvment is only about 15% on the Athlon when compared with code generated
- * with MSVC++.  Not sure yet, but I think the P4 will also be slower using the
- * MMX mode because many of it's x86 ALU instructions execute in .5 cycles and
- * have less latency than MMX ops.  Added code to buffer the last 11 bytes of
- * the input stream since the MMX code grabs bits in chunks of 32, which
- * differs from the inffast.c algorithm.  I don't think there would have been
- * read overruns where a page boundary was crossed (a segfault), but there
- * could have been overruns when next_in ends on unaligned memory (unintialized
- * memory read).
- *
- * Mar-13-2003 -- P4 MMX is slightly slower than P4 NO_MMX.  I created a C
- * version of the non-MMX code so that it doesn't depend on zstrm and zstate
- * structure offsets which are hard coded in this file.  This was last tested
- * with zlib-1.2.0 which is currently in beta testing, newer versions of this
- * and inffas86.c can be found at http://www.eetbeetee.com/zlib/ and
- * http://www.charm.net/~christop/zlib/
- */
-
-
-/*
- * if you have underscore linking problems (_inflate_fast undefined), try
- * using -DGAS_COFF
- */
-#if ! defined( GAS_COFF ) && ! defined( GAS_ELF )
-
-#if defined( WIN32 ) || defined( __CYGWIN__ )
-#define GAS_COFF /* windows object format */
-#else
-#define GAS_ELF
-#endif
-
-#endif /* ! GAS_COFF && ! GAS_ELF */
-
-
-#if defined( GAS_COFF )
-
-/* coff externals have underscores */
-#define inflate_fast _inflate_fast
-#define inflate_fast_use_mmx _inflate_fast_use_mmx
-
-#endif /* GAS_COFF */
-
-
-.file "inffast.S"
-
-.globl inflate_fast
-
-.text
-.align 4,0
-.L_invalid_literal_length_code_msg:
-.string "invalid literal/length code"
-
-.align 4,0
-.L_invalid_distance_code_msg:
-.string "invalid distance code"
-
-.align 4,0
-.L_invalid_distance_too_far_msg:
-.string "invalid distance too far back"
-
-#if ! defined( NO_MMX )
-.align 4,0
-.L_mask: /* mask[N] = ( 1 << N ) - 1 */
-.long 0
-.long 1
-.long 3
-.long 7
-.long 15
-.long 31
-.long 63
-.long 127
-.long 255
-.long 511
-.long 1023
-.long 2047
-.long 4095
-.long 8191
-.long 16383
-.long 32767
-.long 65535
-.long 131071
-.long 262143
-.long 524287
-.long 1048575
-.long 2097151
-.long 4194303
-.long 8388607
-.long 16777215
-.long 33554431
-.long 67108863
-.long 134217727
-.long 268435455
-.long 536870911
-.long 1073741823
-.long 2147483647
-.long 4294967295
-#endif /* NO_MMX */
-
-.text
-
-/*
- * struct z_stream offsets, in zlib.h
- */
-#define next_in_strm   0   /* strm->next_in */
-#define avail_in_strm  4   /* strm->avail_in */
-#define next_out_strm  12  /* strm->next_out */
-#define avail_out_strm 16  /* strm->avail_out */
-#define msg_strm       24  /* strm->msg */
-#define state_strm     28  /* strm->state */
-
-/*
- * struct inflate_state offsets, in inflate.h
- */
-#define mode_state     0   /* state->mode */
-#define wsize_state    32  /* state->wsize */
-#define write_state    40  /* state->write */
-#define window_state   44  /* state->window */
-#define hold_state     48  /* state->hold */
-#define bits_state     52  /* state->bits */
-#define lencode_state  68  /* state->lencode */
-#define distcode_state 72  /* state->distcode */
-#define lenbits_state  76  /* state->lenbits */
-#define distbits_state 80  /* state->distbits */
-
-/*
- * inflate_fast's activation record
- */
-#define local_var_size 64 /* how much local space for vars */
-#define strm_sp        88 /* first arg: z_stream * (local_var_size + 24) */
-#define start_sp       92 /* second arg: unsigned int (local_var_size + 28) */
-
-/*
- * offsets for local vars on stack
- */
-#define out            60  /* unsigned char* */
-#define window         56  /* unsigned char* */
-#define wsize          52  /* unsigned int */
-#define write          48  /* unsigned int */
-#define in             44  /* unsigned char* */
-#define beg            40  /* unsigned char* */
-#define buf            28  /* char[ 12 ] */
-#define len            24  /* unsigned int */
-#define last           20  /* unsigned char* */
-#define end            16  /* unsigned char* */
-#define dcode          12  /* code* */
-#define lcode           8  /* code* */
-#define dmask           4  /* unsigned int */
-#define lmask           0  /* unsigned int */
-
-/*
- * typedef enum inflate_mode consts, in inflate.h
- */
-#define INFLATE_MODE_TYPE 11  /* state->mode flags enum-ed in inflate.h */
-#define INFLATE_MODE_BAD  26
-
-
-#if ! defined( USE_MMX ) && ! defined( NO_MMX )
-
-#define RUN_TIME_MMX
-
-#define CHECK_MMX    1
-#define DO_USE_MMX   2
-#define DONT_USE_MMX 3
-
-.globl inflate_fast_use_mmx
-
-.data
-
-.align 4,0
-inflate_fast_use_mmx: /* integer flag for run time control 1=check,2=mmx,3=no */
-.long CHECK_MMX
-
-#if defined( GAS_ELF )
-/* elf info */
-.type   inflate_fast_use_mmx,@object
-.size   inflate_fast_use_mmx,4
-#endif
-
-#endif /* RUN_TIME_MMX */
-
-#if defined( GAS_COFF )
-/* coff info: scl 2 = extern, type 32 = function */
-.def inflate_fast; .scl 2; .type 32; .endef
-#endif
-
-.text
-
-.align 32,0x90
-inflate_fast:
-        pushl   %edi
-        pushl   %esi
-        pushl   %ebp
-        pushl   %ebx
-        pushf   /* save eflags (strm_sp, state_sp assumes this is 32 bits) */
-        subl    $local_var_size, %esp
-        cld
-
-#define strm_r  %esi
-#define state_r %edi
-
-        movl    strm_sp(%esp), strm_r
-        movl    state_strm(strm_r), state_r
-
-        /* in = strm->next_in;
-         * out = strm->next_out;
-         * last = in + strm->avail_in - 11;
-         * beg = out - (start - strm->avail_out);
-         * end = out + (strm->avail_out - 257);
-         */
-        movl    avail_in_strm(strm_r), %edx
-        movl    next_in_strm(strm_r), %eax
-
-        addl    %eax, %edx      /* avail_in += next_in */
-        subl    $11, %edx       /* avail_in -= 11 */
-
-        movl    %eax, in(%esp)
-        movl    %edx, last(%esp)
-
-        movl    start_sp(%esp), %ebp
-        movl    avail_out_strm(strm_r), %ecx
-        movl    next_out_strm(strm_r), %ebx
-
-        subl    %ecx, %ebp      /* start -= avail_out */
-        negl    %ebp            /* start = -start */
-        addl    %ebx, %ebp      /* start += next_out */
-
-        subl    $257, %ecx      /* avail_out -= 257 */
-        addl    %ebx, %ecx      /* avail_out += out */
-
-        movl    %ebx, out(%esp)
-        movl    %ebp, beg(%esp)
-        movl    %ecx, end(%esp)
-
-        /* wsize = state->wsize;
-         * write = state->write;
-         * window = state->window;
-         * hold = state->hold;
-         * bits = state->bits;
-         * lcode = state->lencode;
-         * dcode = state->distcode;
-         * lmask = ( 1 << state->lenbits ) - 1;
-         * dmask = ( 1 << state->distbits ) - 1;
-         */
-
-        movl    lencode_state(state_r), %eax
-        movl    distcode_state(state_r), %ecx
-
-        movl    %eax, lcode(%esp)
-        movl    %ecx, dcode(%esp)
-
-        movl    $1, %eax
-        movl    lenbits_state(state_r), %ecx
-        shll    %cl, %eax
-        decl    %eax
-        movl    %eax, lmask(%esp)
-
-        movl    $1, %eax
-        movl    distbits_state(state_r), %ecx
-        shll    %cl, %eax
-        decl    %eax
-        movl    %eax, dmask(%esp)
-
-        movl    wsize_state(state_r), %eax
-        movl    write_state(state_r), %ecx
-        movl    window_state(state_r), %edx
-
-        movl    %eax, wsize(%esp)
-        movl    %ecx, write(%esp)
-        movl    %edx, window(%esp)
-
-        movl    hold_state(state_r), %ebp
-        movl    bits_state(state_r), %ebx
-
-#undef strm_r
-#undef state_r
-
-#define in_r       %esi
-#define from_r     %esi
-#define out_r      %edi
-
-        movl    in(%esp), in_r
-        movl    last(%esp), %ecx
-        cmpl    in_r, %ecx
-        ja      .L_align_long           /* if in < last */
-
-        addl    $11, %ecx               /* ecx = &in[ avail_in ] */
-        subl    in_r, %ecx              /* ecx = avail_in */
-        movl    $12, %eax
-        subl    %ecx, %eax              /* eax = 12 - avail_in */
-        leal    buf(%esp), %edi
-        rep     movsb                   /* memcpy( buf, in, avail_in ) */
-        movl    %eax, %ecx
-        xorl    %eax, %eax
-        rep     stosb         /* memset( &buf[ avail_in ], 0, 12 - avail_in ) */
-        leal    buf(%esp), in_r         /* in = buf */
-        movl    in_r, last(%esp)        /* last = in, do just one iteration */
-        jmp     .L_is_aligned
-
-        /* align in_r on long boundary */
-.L_align_long:
-        testl   $3, in_r
-        jz      .L_is_aligned
-        xorl    %eax, %eax
-        movb    (in_r), %al
-        incl    in_r
-        movl    %ebx, %ecx
-        addl    $8, %ebx
-        shll    %cl, %eax
-        orl     %eax, %ebp
-        jmp     .L_align_long
-
-.L_is_aligned:
-        movl    out(%esp), out_r
-
-#if defined( NO_MMX )
-        jmp     .L_do_loop
-#endif
-
-#if defined( USE_MMX )
-        jmp     .L_init_mmx
-#endif
-
-/*** Runtime MMX check ***/
-
-#if defined( RUN_TIME_MMX )
-.L_check_mmx:
-        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
-        je      .L_init_mmx
-        ja      .L_do_loop /* > 2 */
-
-        pushl   %eax
-        pushl   %ebx
-        pushl   %ecx
-        pushl   %edx
-        pushf
-        movl    (%esp), %eax      /* copy eflags to eax */
-        xorl    $0x200000, (%esp) /* try toggling ID bit of eflags (bit 21)
-                                   * to see if cpu supports cpuid...
-                                   * ID bit method not supported by NexGen but
-                                   * bios may load a cpuid instruction and
-                                   * cpuid may be disabled on Cyrix 5-6x86 */
-        popf
-        pushf
-        popl    %edx              /* copy new eflags to edx */
-        xorl    %eax, %edx        /* test if ID bit is flipped */
-        jz      .L_dont_use_mmx   /* not flipped if zero */
-        xorl    %eax, %eax
-        cpuid
-        cmpl    $0x756e6547, %ebx /* check for GenuineIntel in ebx,ecx,edx */
-        jne     .L_dont_use_mmx
-        cmpl    $0x6c65746e, %ecx
-        jne     .L_dont_use_mmx
-        cmpl    $0x49656e69, %edx
-        jne     .L_dont_use_mmx
-        movl    $1, %eax
-        cpuid                     /* get cpu features */
-        shrl    $8, %eax
-        andl    $15, %eax
-        cmpl    $6, %eax          /* check for Pentium family, is 0xf for P4 */
-        jne     .L_dont_use_mmx
-        testl   $0x800000, %edx   /* test if MMX feature is set (bit 23) */
-        jnz     .L_use_mmx
-        jmp     .L_dont_use_mmx
-.L_use_mmx:
-        movl    $DO_USE_MMX, inflate_fast_use_mmx
-        jmp     .L_check_mmx_pop
-.L_dont_use_mmx:
-        movl    $DONT_USE_MMX, inflate_fast_use_mmx
-.L_check_mmx_pop:
-        popl    %edx
-        popl    %ecx
-        popl    %ebx
-        popl    %eax
-        jmp     .L_check_mmx
-#endif
-
-
-/*** Non-MMX code ***/
-
-#if defined ( NO_MMX ) || defined( RUN_TIME_MMX )
-
-#define hold_r     %ebp
-#define bits_r     %bl
-#define bitslong_r %ebx
-
-.align 32,0x90
-.L_while_test:
-        /* while (in < last && out < end)
-         */
-        cmpl    out_r, end(%esp)
-        jbe     .L_break_loop           /* if (out >= end) */
-
-        cmpl    in_r, last(%esp)
-        jbe     .L_break_loop
-
-.L_do_loop:
-        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
-         *
-         * do {
-         *   if (bits < 15) {
-         *     hold |= *((unsigned short *)in)++ << bits;
-         *     bits += 16
-         *   }
-         *   this = lcode[hold & lmask]
-         */
-        cmpb    $15, bits_r
-        ja      .L_get_length_code      /* if (15 < bits) */
-
-        xorl    %eax, %eax
-        lodsw                           /* al = *(ushort *)in++ */
-        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
-        addb    $16, bits_r             /* bits += 16 */
-        shll    %cl, %eax
-        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
-
-.L_get_length_code:
-        movl    lmask(%esp), %edx       /* edx = lmask */
-        movl    lcode(%esp), %ecx       /* ecx = lcode */
-        andl    hold_r, %edx            /* edx &= hold */
-        movl    (%ecx,%edx,4), %eax     /* eax = lcode[hold & lmask] */
-
-.L_dolen:
-        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out
-         *
-         * dolen:
-         *    bits -= this.bits;
-         *    hold >>= this.bits
-         */
-        movb    %ah, %cl                /* cl = this.bits */
-        subb    %ah, bits_r             /* bits -= this.bits */
-        shrl    %cl, hold_r             /* hold >>= this.bits */
-
-        /* check if op is a literal
-         * if (op == 0) {
-         *    PUP(out) = this.val;
-         *  }
-         */
-        testb   %al, %al
-        jnz     .L_test_for_length_base /* if (op != 0) 45.7% */
-
-        shrl    $16, %eax               /* output this.val char */
-        stosb
-        jmp     .L_while_test
-
-.L_test_for_length_base:
-        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = len
-         *
-         * else if (op & 16) {
-         *   len = this.val
-         *   op &= 15
-         *   if (op) {
-         *     if (op > bits) {
-         *       hold |= *((unsigned short *)in)++ << bits;
-         *       bits += 16
-         *     }
-         *     len += hold & mask[op];
-         *     bits -= op;
-         *     hold >>= op;
-         *   }
-         */
-#define len_r %edx
-        movl    %eax, len_r             /* len = this */
-        shrl    $16, len_r              /* len = this.val */
-        movb    %al, %cl
-
-        testb   $16, %al
-        jz      .L_test_for_second_level_length /* if ((op & 16) == 0) 8% */
-        andb    $15, %cl                /* op &= 15 */
-        jz      .L_save_len             /* if (!op) */
-        cmpb    %cl, bits_r
-        jae     .L_add_bits_to_len      /* if (op <= bits) */
-
-        movb    %cl, %ch                /* stash op in ch, freeing cl */
-        xorl    %eax, %eax
-        lodsw                           /* al = *(ushort *)in++ */
-        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
-        addb    $16, bits_r             /* bits += 16 */
-        shll    %cl, %eax
-        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
-        movb    %ch, %cl                /* move op back to ecx */
-
-.L_add_bits_to_len:
-        movl    $1, %eax
-        shll    %cl, %eax
-        decl    %eax
-        subb    %cl, bits_r
-        andl    hold_r, %eax            /* eax &= hold */
-        shrl    %cl, hold_r
-        addl    %eax, len_r             /* len += hold & mask[op] */
-
-.L_save_len:
-        movl    len_r, len(%esp)        /* save len */
-#undef  len_r
-
-.L_decode_distance:
-        /* regs: %esi = in, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *
-         *   if (bits < 15) {
-         *     hold |= *((unsigned short *)in)++ << bits;
-         *     bits += 16
-         *   }
-         *   this = dcode[hold & dmask];
-         * dodist:
-         *   bits -= this.bits;
-         *   hold >>= this.bits;
-         *   op = this.op;
-         */
-
-        cmpb    $15, bits_r
-        ja      .L_get_distance_code    /* if (15 < bits) */
-
-        xorl    %eax, %eax
-        lodsw                           /* al = *(ushort *)in++ */
-        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
-        addb    $16, bits_r             /* bits += 16 */
-        shll    %cl, %eax
-        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
-
-.L_get_distance_code:
-        movl    dmask(%esp), %edx       /* edx = dmask */
-        movl    dcode(%esp), %ecx       /* ecx = dcode */
-        andl    hold_r, %edx            /* edx &= hold */
-        movl    (%ecx,%edx,4), %eax     /* eax = dcode[hold & dmask] */
-
-#define dist_r %edx
-.L_dodist:
-        movl    %eax, dist_r            /* dist = this */
-        shrl    $16, dist_r             /* dist = this.val */
-        movb    %ah, %cl
-        subb    %ah, bits_r             /* bits -= this.bits */
-        shrl    %cl, hold_r             /* hold >>= this.bits */
-
-        /* if (op & 16) {
-         *   dist = this.val
-         *   op &= 15
-         *   if (op > bits) {
-         *     hold |= *((unsigned short *)in)++ << bits;
-         *     bits += 16
-         *   }
-         *   dist += hold & mask[op];
-         *   bits -= op;
-         *   hold >>= op;
-         */
-        movb    %al, %cl                /* cl = this.op */
-
-        testb   $16, %al                /* if ((op & 16) == 0) */
-        jz      .L_test_for_second_level_dist
-        andb    $15, %cl                /* op &= 15 */
-        jz      .L_check_dist_one
-        cmpb    %cl, bits_r
-        jae     .L_add_bits_to_dist     /* if (op <= bits) 97.6% */
-
-        movb    %cl, %ch                /* stash op in ch, freeing cl */
-        xorl    %eax, %eax
-        lodsw                           /* al = *(ushort *)in++ */
-        movb    bits_r, %cl             /* cl = bits, needs it for shifting */
-        addb    $16, bits_r             /* bits += 16 */
-        shll    %cl, %eax
-        orl     %eax, hold_r            /* hold |= *((ushort *)in)++ << bits */
-        movb    %ch, %cl                /* move op back to ecx */
-
-.L_add_bits_to_dist:
-        movl    $1, %eax
-        shll    %cl, %eax
-        decl    %eax                    /* (1 << op) - 1 */
-        subb    %cl, bits_r
-        andl    hold_r, %eax            /* eax &= hold */
-        shrl    %cl, hold_r
-        addl    %eax, dist_r            /* dist += hold & ((1 << op) - 1) */
-        jmp     .L_check_window
-
-.L_check_window:
-        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *       %ecx = nbytes
-         *
-         * nbytes = out - beg;
-         * if (dist <= nbytes) {
-         *   from = out - dist;
-         *   do {
-         *     PUP(out) = PUP(from);
-         *   } while (--len > 0) {
-         * }
-         */
-
-        movl    in_r, in(%esp)          /* save in so from can use it's reg */
-        movl    out_r, %eax
-        subl    beg(%esp), %eax         /* nbytes = out - beg */
-
-        cmpl    dist_r, %eax
-        jb      .L_clip_window          /* if (dist > nbytes) 4.2% */
-
-        movl    len(%esp), %ecx
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-
-        subl    $3, %ecx
-        movb    (from_r), %al
-        movb    %al, (out_r)
-        movb    1(from_r), %al
-        movb    2(from_r), %dl
-        addl    $3, from_r
-        movb    %al, 1(out_r)
-        movb    %dl, 2(out_r)
-        addl    $3, out_r
-        rep     movsb
-
-        movl    in(%esp), in_r          /* move in back to %esi, toss from */
-        jmp     .L_while_test
-
-.align 16,0x90
-.L_check_dist_one:
-        cmpl    $1, dist_r
-        jne     .L_check_window
-        cmpl    out_r, beg(%esp)
-        je      .L_check_window
-
-        decl    out_r
-        movl    len(%esp), %ecx
-        movb    (out_r), %al
-        subl    $3, %ecx
-
-        movb    %al, 1(out_r)
-        movb    %al, 2(out_r)
-        movb    %al, 3(out_r)
-        addl    $4, out_r
-        rep     stosb
-
-        jmp     .L_while_test
-
-.align 16,0x90
-.L_test_for_second_level_length:
-        /* else if ((op & 64) == 0) {
-         *   this = lcode[this.val + (hold & mask[op])];
-         * }
-         */
-        testb   $64, %al
-        jnz     .L_test_for_end_of_block  /* if ((op & 64) != 0) */
-
-        movl    $1, %eax
-        shll    %cl, %eax
-        decl    %eax
-        andl    hold_r, %eax            /* eax &= hold */
-        addl    %edx, %eax              /* eax += this.val */
-        movl    lcode(%esp), %edx       /* edx = lcode */
-        movl    (%edx,%eax,4), %eax     /* eax = lcode[val + (hold&mask[op])] */
-        jmp     .L_dolen
-
-.align 16,0x90
-.L_test_for_second_level_dist:
-        /* else if ((op & 64) == 0) {
-         *   this = dcode[this.val + (hold & mask[op])];
-         * }
-         */
-        testb   $64, %al
-        jnz     .L_invalid_distance_code  /* if ((op & 64) != 0) */
-
-        movl    $1, %eax
-        shll    %cl, %eax
-        decl    %eax
-        andl    hold_r, %eax            /* eax &= hold */
-        addl    %edx, %eax              /* eax += this.val */
-        movl    dcode(%esp), %edx       /* edx = dcode */
-        movl    (%edx,%eax,4), %eax     /* eax = dcode[val + (hold&mask[op])] */
-        jmp     .L_dodist
-
-.align 16,0x90
-.L_clip_window:
-        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *       %ecx = nbytes
-         *
-         * else {
-         *   if (dist > wsize) {
-         *     invalid distance
-         *   }
-         *   from = window;
-         *   nbytes = dist - nbytes;
-         *   if (write == 0) {
-         *     from += wsize - nbytes;
-         */
-#define nbytes_r %ecx
-        movl    %eax, nbytes_r
-        movl    wsize(%esp), %eax       /* prepare for dist compare */
-        negl    nbytes_r                /* nbytes = -nbytes */
-        movl    window(%esp), from_r    /* from = window */
-
-        cmpl    dist_r, %eax
-        jb      .L_invalid_distance_too_far /* if (dist > wsize) */
-
-        addl    dist_r, nbytes_r        /* nbytes = dist - nbytes */
-        cmpl    $0, write(%esp)
-        jne     .L_wrap_around_window   /* if (write != 0) */
-
-        subl    nbytes_r, %eax
-        addl    %eax, from_r            /* from += wsize - nbytes */
-
-        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *       %ecx = nbytes, %eax = len
-         *
-         *     if (nbytes < len) {
-         *       len -= nbytes;
-         *       do {
-         *         PUP(out) = PUP(from);
-         *       } while (--nbytes);
-         *       from = out - dist;
-         *     }
-         *   }
-         */
-#define len_r %eax
-        movl    len(%esp), len_r
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1             /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1
-
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1             /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1
-
-.L_wrap_around_window:
-        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *       %ecx = nbytes, %eax = write, %eax = len
-         *
-         *   else if (write < nbytes) {
-         *     from += wsize + write - nbytes;
-         *     nbytes -= write;
-         *     if (nbytes < len) {
-         *       len -= nbytes;
-         *       do {
-         *         PUP(out) = PUP(from);
-         *       } while (--nbytes);
-         *       from = window;
-         *       nbytes = write;
-         *       if (nbytes < len) {
-         *         len -= nbytes;
-         *         do {
-         *           PUP(out) = PUP(from);
-         *         } while(--nbytes);
-         *         from = out - dist;
-         *       }
-         *     }
-         *   }
-         */
-#define write_r %eax
-        movl    write(%esp), write_r
-        cmpl    write_r, nbytes_r
-        jbe     .L_contiguous_in_window /* if (write >= nbytes) */
-
-        addl    wsize(%esp), from_r
-        addl    write_r, from_r
-        subl    nbytes_r, from_r        /* from += wsize + write - nbytes */
-        subl    write_r, nbytes_r       /* nbytes -= write */
-#undef write_r
-
-        movl    len(%esp), len_r
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1             /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    window(%esp), from_r    /* from = window */
-        movl    write(%esp), nbytes_r   /* nbytes = write */
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1             /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1
-
-.L_contiguous_in_window:
-        /* regs: %esi = from, %ebp = hold, %bl = bits, %edi = out, %edx = dist
-         *       %ecx = nbytes, %eax = write, %eax = len
-         *
-         *   else {
-         *     from += write - nbytes;
-         *     if (nbytes < len) {
-         *       len -= nbytes;
-         *       do {
-         *         PUP(out) = PUP(from);
-         *       } while (--nbytes);
-         *       from = out - dist;
-         *     }
-         *   }
-         */
-#define write_r %eax
-        addl    write_r, from_r
-        subl    nbytes_r, from_r        /* from += write - nbytes */
-#undef write_r
-
-        movl    len(%esp), len_r
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1             /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-
-.L_do_copy1:
-        /* regs: %esi = from, %esi = in, %ebp = hold, %bl = bits, %edi = out
-         *       %eax = len
-         *
-         *     while (len > 0) {
-         *       PUP(out) = PUP(from);
-         *       len--;
-         *     }
-         *   }
-         * } while (in < last && out < end);
-         */
-#undef nbytes_r
-#define in_r %esi
-        movl    len_r, %ecx
-        rep     movsb
-
-        movl    in(%esp), in_r          /* move in back to %esi, toss from */
-        jmp     .L_while_test
-
-#undef len_r
-#undef dist_r
-
-#endif /* NO_MMX || RUN_TIME_MMX */
-
-
-/*** MMX code ***/
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-.align 32,0x90
-.L_init_mmx:
-        emms
-
-#undef  bits_r
-#undef  bitslong_r
-#define bitslong_r %ebp
-#define hold_mm    %mm0
-        movd    %ebp, hold_mm
-        movl    %ebx, bitslong_r
-
-#define used_mm   %mm1
-#define dmask2_mm %mm2
-#define lmask2_mm %mm3
-#define lmask_mm  %mm4
-#define dmask_mm  %mm5
-#define tmp_mm    %mm6
-
-        movd    lmask(%esp), lmask_mm
-        movq    lmask_mm, lmask2_mm
-        movd    dmask(%esp), dmask_mm
-        movq    dmask_mm, dmask2_mm
-        pxor    used_mm, used_mm
-        movl    lcode(%esp), %ebx       /* ebx = lcode */
-        jmp     .L_do_loop_mmx
-
-.align 32,0x90
-.L_while_test_mmx:
-        /* while (in < last && out < end)
-         */
-        cmpl    out_r, end(%esp)
-        jbe     .L_break_loop           /* if (out >= end) */
-
-        cmpl    in_r, last(%esp)
-        jbe     .L_break_loop
-
-.L_do_loop_mmx:
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-
-        cmpl    $32, bitslong_r
-        ja      .L_get_length_code_mmx  /* if (32 < bits) */
-
-        movd    bitslong_r, tmp_mm
-        movd    (in_r), %mm7
-        addl    $4, in_r
-        psllq   tmp_mm, %mm7
-        addl    $32, bitslong_r
-        por     %mm7, hold_mm           /* hold_mm |= *((uint *)in)++ << bits */
-
-.L_get_length_code_mmx:
-        pand    hold_mm, lmask_mm
-        movd    lmask_mm, %eax
-        movq    lmask2_mm, lmask_mm
-        movl    (%ebx,%eax,4), %eax     /* eax = lcode[hold & lmask] */
-
-.L_dolen_mmx:
-        movzbl  %ah, %ecx               /* ecx = this.bits */
-        movd    %ecx, used_mm
-        subl    %ecx, bitslong_r        /* bits -= this.bits */
-
-        testb   %al, %al
-        jnz     .L_test_for_length_base_mmx /* if (op != 0) 45.7% */
-
-        shrl    $16, %eax               /* output this.val char */
-        stosb
-        jmp     .L_while_test_mmx
-
-.L_test_for_length_base_mmx:
-#define len_r  %edx
-        movl    %eax, len_r             /* len = this */
-        shrl    $16, len_r              /* len = this.val */
-
-        testb   $16, %al
-        jz      .L_test_for_second_level_length_mmx /* if ((op & 16) == 0) 8% */
-        andl    $15, %eax               /* op &= 15 */
-        jz      .L_decode_distance_mmx  /* if (!op) */
-
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-        movd    %eax, used_mm
-        movd    hold_mm, %ecx
-        subl    %eax, bitslong_r
-        andl    .L_mask(,%eax,4), %ecx
-        addl    %ecx, len_r             /* len += hold & mask[op] */
-
-.L_decode_distance_mmx:
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-
-        cmpl    $32, bitslong_r
-        ja      .L_get_dist_code_mmx    /* if (32 < bits) */
-
-        movd    bitslong_r, tmp_mm
-        movd    (in_r), %mm7
-        addl    $4, in_r
-        psllq   tmp_mm, %mm7
-        addl    $32, bitslong_r
-        por     %mm7, hold_mm           /* hold_mm |= *((uint *)in)++ << bits */
-
-.L_get_dist_code_mmx:
-        movl    dcode(%esp), %ebx       /* ebx = dcode */
-        pand    hold_mm, dmask_mm
-        movd    dmask_mm, %eax
-        movq    dmask2_mm, dmask_mm
-        movl    (%ebx,%eax,4), %eax     /* eax = dcode[hold & lmask] */
-
-.L_dodist_mmx:
-#define dist_r %ebx
-        movzbl  %ah, %ecx               /* ecx = this.bits */
-        movl    %eax, dist_r
-        shrl    $16, dist_r             /* dist  = this.val */
-        subl    %ecx, bitslong_r        /* bits -= this.bits */
-        movd    %ecx, used_mm
-
-        testb   $16, %al                /* if ((op & 16) == 0) */
-        jz      .L_test_for_second_level_dist_mmx
-        andl    $15, %eax               /* op &= 15 */
-        jz      .L_check_dist_one_mmx
-
-.L_add_bits_to_dist_mmx:
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-        movd    %eax, used_mm           /* save bit length of current op */
-        movd    hold_mm, %ecx           /* get the next bits on input stream */
-        subl    %eax, bitslong_r        /* bits -= op bits */
-        andl    .L_mask(,%eax,4), %ecx  /* ecx   = hold & mask[op] */
-        addl    %ecx, dist_r            /* dist += hold & mask[op] */
-
-.L_check_window_mmx:
-        movl    in_r, in(%esp)          /* save in so from can use it's reg */
-        movl    out_r, %eax
-        subl    beg(%esp), %eax         /* nbytes = out - beg */
-
-        cmpl    dist_r, %eax
-        jb      .L_clip_window_mmx      /* if (dist > nbytes) 4.2% */
-
-        movl    len_r, %ecx
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-
-        subl    $3, %ecx
-        movb    (from_r), %al
-        movb    %al, (out_r)
-        movb    1(from_r), %al
-        movb    2(from_r), %dl
-        addl    $3, from_r
-        movb    %al, 1(out_r)
-        movb    %dl, 2(out_r)
-        addl    $3, out_r
-        rep     movsb
-
-        movl    in(%esp), in_r          /* move in back to %esi, toss from */
-        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
-        jmp     .L_while_test_mmx
-
-.align 16,0x90
-.L_check_dist_one_mmx:
-        cmpl    $1, dist_r
-        jne     .L_check_window_mmx
-        cmpl    out_r, beg(%esp)
-        je      .L_check_window_mmx
-
-        decl    out_r
-        movl    len_r, %ecx
-        movb    (out_r), %al
-        subl    $3, %ecx
-
-        movb    %al, 1(out_r)
-        movb    %al, 2(out_r)
-        movb    %al, 3(out_r)
-        addl    $4, out_r
-        rep     stosb
-
-        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
-        jmp     .L_while_test_mmx
-
-.align 16,0x90
-.L_test_for_second_level_length_mmx:
-        testb   $64, %al
-        jnz     .L_test_for_end_of_block  /* if ((op & 64) != 0) */
-
-        andl    $15, %eax
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-        movd    hold_mm, %ecx
-        andl    .L_mask(,%eax,4), %ecx
-        addl    len_r, %ecx
-        movl    (%ebx,%ecx,4), %eax     /* eax = lcode[hold & lmask] */
-        jmp     .L_dolen_mmx
-
-.align 16,0x90
-.L_test_for_second_level_dist_mmx:
-        testb   $64, %al
-        jnz     .L_invalid_distance_code  /* if ((op & 64) != 0) */
-
-        andl    $15, %eax
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-        movd    hold_mm, %ecx
-        andl    .L_mask(,%eax,4), %ecx
-        movl    dcode(%esp), %eax       /* ecx = dcode */
-        addl    dist_r, %ecx
-        movl    (%eax,%ecx,4), %eax     /* eax = lcode[hold & lmask] */
-        jmp     .L_dodist_mmx
-
-.align 16,0x90
-.L_clip_window_mmx:
-#define nbytes_r %ecx
-        movl    %eax, nbytes_r
-        movl    wsize(%esp), %eax       /* prepare for dist compare */
-        negl    nbytes_r                /* nbytes = -nbytes */
-        movl    window(%esp), from_r    /* from = window */
-
-        cmpl    dist_r, %eax
-        jb      .L_invalid_distance_too_far /* if (dist > wsize) */
-
-        addl    dist_r, nbytes_r        /* nbytes = dist - nbytes */
-        cmpl    $0, write(%esp)
-        jne     .L_wrap_around_window_mmx /* if (write != 0) */
-
-        subl    nbytes_r, %eax
-        addl    %eax, from_r            /* from += wsize - nbytes */
-
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1_mmx
-
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1_mmx
-
-.L_wrap_around_window_mmx:
-#define write_r %eax
-        movl    write(%esp), write_r
-        cmpl    write_r, nbytes_r
-        jbe     .L_contiguous_in_window_mmx /* if (write >= nbytes) */
-
-        addl    wsize(%esp), from_r
-        addl    write_r, from_r
-        subl    nbytes_r, from_r        /* from += wsize + write - nbytes */
-        subl    write_r, nbytes_r       /* nbytes -= write */
-#undef write_r
-
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    window(%esp), from_r    /* from = window */
-        movl    write(%esp), nbytes_r   /* nbytes = write */
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-        jmp     .L_do_copy1_mmx
-
-.L_contiguous_in_window_mmx:
-#define write_r %eax
-        addl    write_r, from_r
-        subl    nbytes_r, from_r        /* from += write - nbytes */
-#undef write_r
-
-        cmpl    nbytes_r, len_r
-        jbe     .L_do_copy1_mmx         /* if (nbytes >= len) */
-
-        subl    nbytes_r, len_r         /* len -= nbytes */
-        rep     movsb
-        movl    out_r, from_r
-        subl    dist_r, from_r          /* from = out - dist */
-
-.L_do_copy1_mmx:
-#undef nbytes_r
-#define in_r %esi
-        movl    len_r, %ecx
-        rep     movsb
-
-        movl    in(%esp), in_r          /* move in back to %esi, toss from */
-        movl    lcode(%esp), %ebx       /* move lcode back to %ebx, toss dist */
-        jmp     .L_while_test_mmx
-
-#undef hold_r
-#undef bitslong_r
-
-#endif /* USE_MMX || RUN_TIME_MMX */
-
-
-/*** USE_MMX, NO_MMX, and RUNTIME_MMX from here on ***/
-
-.L_invalid_distance_code:
-        /* else {
-         *   strm->msg = "invalid distance code";
-         *   state->mode = BAD;
-         * }
-         */
-        movl    $.L_invalid_distance_code_msg, %ecx
-        movl    $INFLATE_MODE_BAD, %edx
-        jmp     .L_update_stream_state
-
-.L_test_for_end_of_block:
-        /* else if (op & 32) {
-         *   state->mode = TYPE;
-         *   break;
-         * }
-         */
-        testb   $32, %al
-        jz      .L_invalid_literal_length_code  /* if ((op & 32) == 0) */
-
-        movl    $0, %ecx
-        movl    $INFLATE_MODE_TYPE, %edx
-        jmp     .L_update_stream_state
-
-.L_invalid_literal_length_code:
-        /* else {
-         *   strm->msg = "invalid literal/length code";
-         *   state->mode = BAD;
-         * }
-         */
-        movl    $.L_invalid_literal_length_code_msg, %ecx
-        movl    $INFLATE_MODE_BAD, %edx
-        jmp     .L_update_stream_state
-
-.L_invalid_distance_too_far:
-        /* strm->msg = "invalid distance too far back";
-         * state->mode = BAD;
-         */
-        movl    in(%esp), in_r          /* from_r has in's reg, put in back */
-        movl    $.L_invalid_distance_too_far_msg, %ecx
-        movl    $INFLATE_MODE_BAD, %edx
-        jmp     .L_update_stream_state
-
-.L_update_stream_state:
-        /* set strm->msg = %ecx, strm->state->mode = %edx */
-        movl    strm_sp(%esp), %eax
-        testl   %ecx, %ecx              /* if (msg != NULL) */
-        jz      .L_skip_msg
-        movl    %ecx, msg_strm(%eax)    /* strm->msg = msg */
-.L_skip_msg:
-        movl    state_strm(%eax), %eax  /* state = strm->state */
-        movl    %edx, mode_state(%eax)  /* state->mode = edx (BAD | TYPE) */
-        jmp     .L_break_loop
-
-.align 32,0x90
-.L_break_loop:
-
-/*
- * Regs:
- *
- * bits = %ebp when mmx, and in %ebx when non-mmx
- * hold = %hold_mm when mmx, and in %ebp when non-mmx
- * in   = %esi
- * out  = %edi
- */
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-#if defined( RUN_TIME_MMX )
-
-        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
-        jne     .L_update_next_in
-
-#endif /* RUN_TIME_MMX */
-
-        movl    %ebp, %ebx
-
-.L_update_next_in:
-
-#endif
-
-#define strm_r  %eax
-#define state_r %edx
-
-        /* len = bits >> 3;
-         * in -= len;
-         * bits -= len << 3;
-         * hold &= (1U << bits) - 1;
-         * state->hold = hold;
-         * state->bits = bits;
-         * strm->next_in = in;
-         * strm->next_out = out;
-         */
-        movl    strm_sp(%esp), strm_r
-        movl    %ebx, %ecx
-        movl    state_strm(strm_r), state_r
-        shrl    $3, %ecx
-        subl    %ecx, in_r
-        shll    $3, %ecx
-        subl    %ecx, %ebx
-        movl    out_r, next_out_strm(strm_r)
-        movl    %ebx, bits_state(state_r)
-        movl    %ebx, %ecx
-
-        leal    buf(%esp), %ebx
-        cmpl    %ebx, last(%esp)
-        jne     .L_buf_not_used         /* if buf != last */
-
-        subl    %ebx, in_r              /* in -= buf */
-        movl    next_in_strm(strm_r), %ebx
-        movl    %ebx, last(%esp)        /* last = strm->next_in */
-        addl    %ebx, in_r              /* in += strm->next_in */
-        movl    avail_in_strm(strm_r), %ebx
-        subl    $11, %ebx
-        addl    %ebx, last(%esp)    /* last = &strm->next_in[ avail_in - 11 ] */
-
-.L_buf_not_used:
-        movl    in_r, next_in_strm(strm_r)
-
-        movl    $1, %ebx
-        shll    %cl, %ebx
-        decl    %ebx
-
-#if defined( USE_MMX ) || defined( RUN_TIME_MMX )
-
-#if defined( RUN_TIME_MMX )
-
-        cmpl    $DO_USE_MMX, inflate_fast_use_mmx
-        jne     .L_update_hold
-
-#endif /* RUN_TIME_MMX */
-
-        psrlq   used_mm, hold_mm        /* hold_mm >>= last bit length */
-        movd    hold_mm, %ebp
-
-        emms
-
-.L_update_hold:
-
-#endif /* USE_MMX || RUN_TIME_MMX */
-
-        andl    %ebx, %ebp
-        movl    %ebp, hold_state(state_r)
-
-#define last_r %ebx
-
-        /* strm->avail_in = in < last ? 11 + (last - in) : 11 - (in - last) */
-        movl    last(%esp), last_r
-        cmpl    in_r, last_r
-        jbe     .L_last_is_smaller     /* if (in >= last) */
-
-        subl    in_r, last_r           /* last -= in */
-        addl    $11, last_r            /* last += 11 */
-        movl    last_r, avail_in_strm(strm_r)
-        jmp     .L_fixup_out
-.L_last_is_smaller:
-        subl    last_r, in_r           /* in -= last */
-        negl    in_r                   /* in = -in */
-        addl    $11, in_r              /* in += 11 */
-        movl    in_r, avail_in_strm(strm_r)
-
-#undef last_r
-#define end_r %ebx
-
-.L_fixup_out:
-        /* strm->avail_out = out < end ? 257 + (end - out) : 257 - (out - end)*/
-        movl    end(%esp), end_r
-        cmpl    out_r, end_r
-        jbe     .L_end_is_smaller      /* if (out >= end) */
-
-        subl    out_r, end_r           /* end -= out */
-        addl    $257, end_r            /* end += 257 */
-        movl    end_r, avail_out_strm(strm_r)
-        jmp     .L_done
-.L_end_is_smaller:
-        subl    end_r, out_r           /* out -= end */
-        negl    out_r                  /* out = -out */
-        addl    $257, out_r            /* out += 257 */
-        movl    out_r, avail_out_strm(strm_r)
-
-#undef end_r
-#undef strm_r
-#undef state_r
-
-.L_done:
-        addl    $local_var_size, %esp
-        popf
-        popl    %ebx
-        popl    %ebp
-        popl    %esi
-        popl    %edi
-        ret
-
-#if defined( GAS_ELF )
-/* elf info */
-.type inflate_fast,@function
-.size inflate_fast,.-inflate_fast
-#endif
diff --git a/contrib/masmx64/bld_ml64.bat b/contrib/masmx64/bld_ml64.bat
deleted file mode 100644
index 8f9343d..0000000
--- a/contrib/masmx64/bld_ml64.bat
+++ /dev/null
@@ -1,2 +0,0 @@
-ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
-ml64.exe /Flgvmat64   /c /Zi gvmat64.asm
diff --git a/contrib/masmx64/gvmat64.asm b/contrib/masmx64/gvmat64.asm
deleted file mode 100644
index 9879c28..0000000
--- a/contrib/masmx64/gvmat64.asm
+++ /dev/null
@@ -1,553 +0,0 @@
-;uInt longest_match_x64(
-;    deflate_state *s,
-;    IPos cur_match);                             /* current match */
-
-; gvmat64.asm -- Asm portion of the optimized longest_match for 32 bits x86_64
-;  (AMD64 on Athlon 64, Opteron, Phenom
-;     and Intel EM64T on Pentium 4 with EM64T, Pentium D, Core 2 Duo, Core I5/I7)
-; Copyright (C) 1995-2010 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
-;
-; File written by Gilles Vollant, by converting to assembly the longest_match
-;  from Jean-loup Gailly in deflate.c of zLib and infoZip zip.
-;
-;  and by taking inspiration on asm686 with masm, optimised assembly code
-;        from Brian Raiter, written 1998
-;
-;  This software is provided 'as-is', without any express or implied
-;  warranty.  In no event will the authors be held liable for any damages
-;  arising from the use of this software.
-;
-;  Permission is granted to anyone to use this software for any purpose,
-;  including commercial applications, and to alter it and redistribute it
-;  freely, subject to the following restrictions:
-;
-;  1. The origin of this software must not be misrepresented; you must not
-;     claim that you wrote the original software. If you use this software
-;     in a product, an acknowledgment in the product documentation would be
-;     appreciated but is not required.
-;  2. Altered source versions must be plainly marked as such, and must not be
-;     misrepresented as being the original software
-;  3. This notice may not be removed or altered from any source distribution.
-;
-;
-;
-;         http://www.zlib.net
-;         http://www.winimage.com/zLibDll
-;         http://www.muppetlabs.com/~breadbox/software/assembly.html
-;
-; to compile this file for infozip Zip, I use option:
-;   ml64.exe /Flgvmat64 /c /Zi /DINFOZIP gvmat64.asm
-;
-; to compile this file for zLib, I use option:
-;   ml64.exe /Flgvmat64 /c /Zi gvmat64.asm
-; Be carrefull to adapt zlib1222add below to your version of zLib
-;   (if you use a version of zLib before 1.0.4 or after 1.2.2.2, change
-;    value of zlib1222add later)
-;
-; This file compile with Microsoft Macro Assembler (x64) for AMD64
-;
-;   ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
-;
-;   (you can get Windows WDK with ml64 for AMD64 from
-;      http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
-;
-
-
-;uInt longest_match(s, cur_match)
-;    deflate_state *s;
-;    IPos cur_match;                             /* current match */
-.code
-longest_match PROC
-
-
-;LocalVarsSize   equ 88
- LocalVarsSize   equ 72
-
-; register used : rax,rbx,rcx,rdx,rsi,rdi,r8,r9,r10,r11,r12
-; free register :  r14,r15
-; register can be saved : rsp
-
- chainlenwmask   equ  rsp + 8 - LocalVarsSize    ; high word: current chain len
-                                                 ; low word: s->wmask
-;window          equ  rsp + xx - LocalVarsSize   ; local copy of s->window ; stored in r10
-;windowbestlen   equ  rsp + xx - LocalVarsSize   ; s->window + bestlen , use r10+r11
-;scanstart       equ  rsp + xx - LocalVarsSize   ; first two bytes of string ; stored in r12w
-;scanend         equ  rsp + xx - LocalVarsSize   ; last two bytes of string use ebx
-;scanalign       equ  rsp + xx - LocalVarsSize   ; dword-misalignment of string r13
-;bestlen         equ  rsp + xx - LocalVarsSize   ; size of best match so far -> r11d
-;scan            equ  rsp + xx - LocalVarsSize   ; ptr to string wanting match -> r9
-IFDEF INFOZIP
-ELSE
- nicematch       equ  (rsp + 16 - LocalVarsSize) ; a good enough match size
-ENDIF
-
-save_rdi        equ  rsp + 24 - LocalVarsSize
-save_rsi        equ  rsp + 32 - LocalVarsSize
-save_rbx        equ  rsp + 40 - LocalVarsSize
-save_rbp        equ  rsp + 48 - LocalVarsSize
-save_r12        equ  rsp + 56 - LocalVarsSize
-save_r13        equ  rsp + 64 - LocalVarsSize
-;save_r14        equ  rsp + 72 - LocalVarsSize
-;save_r15        equ  rsp + 80 - LocalVarsSize
-
-
-; summary of register usage
-; scanend     ebx
-; scanendw    bx
-; chainlenwmask   edx
-; curmatch    rsi
-; curmatchd   esi
-; windowbestlen   r8
-; scanalign   r9
-; scanalignd  r9d
-; window      r10
-; bestlen     r11
-; bestlend    r11d
-; scanstart   r12d
-; scanstartw  r12w
-; scan        r13
-; nicematch   r14d
-; limit       r15
-; limitd      r15d
-; prev        rcx
-
-;  all the +4 offsets are due to the addition of pending_buf_size (in zlib
-;  in the deflate_state structure since the asm code was first written
-;  (if you compile with zlib 1.0.4 or older, remove the +4).
-;  Note : these value are good with a 8 bytes boundary pack structure
-
-
-    MAX_MATCH           equ     258
-    MIN_MATCH           equ     3
-    MIN_LOOKAHEAD       equ     (MAX_MATCH+MIN_MATCH+1)
-
-
-;;; Offsets for fields in the deflate_state structure. These numbers
-;;; are calculated from the definition of deflate_state, with the
-;;; assumption that the compiler will dword-align the fields. (Thus,
-;;; changing the definition of deflate_state could easily cause this
-;;; program to crash horribly, without so much as a warning at
-;;; compile time. Sigh.)
-
-;  all the +zlib1222add offsets are due to the addition of fields
-;  in zlib in the deflate_state structure since the asm code was first written
-;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
-;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
-;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
-
-
-IFDEF INFOZIP
-
-_DATA   SEGMENT
-COMM    window_size:DWORD
-; WMask ; 7fff
-COMM    window:BYTE:010040H
-COMM    prev:WORD:08000H
-; MatchLen : unused
-; PrevMatch : unused
-COMM    strstart:DWORD
-COMM    match_start:DWORD
-; Lookahead : ignore
-COMM    prev_length:DWORD ; PrevLen
-COMM    max_chain_length:DWORD
-COMM    good_match:DWORD
-COMM    nice_match:DWORD
-prev_ad equ OFFSET prev
-window_ad equ OFFSET window
-nicematch equ nice_match
-_DATA ENDS
-WMask equ 07fffh
-
-ELSE
-
-  IFNDEF zlib1222add
-    zlib1222add equ 8
-  ENDIF
-dsWSize         equ 56+zlib1222add+(zlib1222add/2)
-dsWMask         equ 64+zlib1222add+(zlib1222add/2)
-dsWindow        equ 72+zlib1222add
-dsPrev          equ 88+zlib1222add
-dsMatchLen      equ 128+zlib1222add
-dsPrevMatch     equ 132+zlib1222add
-dsStrStart      equ 140+zlib1222add
-dsMatchStart    equ 144+zlib1222add
-dsLookahead     equ 148+zlib1222add
-dsPrevLen       equ 152+zlib1222add
-dsMaxChainLen   equ 156+zlib1222add
-dsGoodMatch     equ 172+zlib1222add
-dsNiceMatch     equ 176+zlib1222add
-
-window_size     equ [ rcx + dsWSize]
-WMask           equ [ rcx + dsWMask]
-window_ad       equ [ rcx + dsWindow]
-prev_ad         equ [ rcx + dsPrev]
-strstart        equ [ rcx + dsStrStart]
-match_start     equ [ rcx + dsMatchStart]
-Lookahead       equ [ rcx + dsLookahead] ; 0ffffffffh on infozip
-prev_length     equ [ rcx + dsPrevLen]
-max_chain_length equ [ rcx + dsMaxChainLen]
-good_match      equ [ rcx + dsGoodMatch]
-nice_match      equ [ rcx + dsNiceMatch]
-ENDIF
-
-; parameter 1 in r8(deflate state s), param 2 in rdx (cur match)
-
-; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
-; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
-;
-; All registers must be preserved across the call, except for
-;   rax, rcx, rdx, r8, r9, r10, and r11, which are scratch.
-
-
-
-;;; Save registers that the compiler may be using, and adjust esp to
-;;; make room for our stack frame.
-
-
-;;; Retrieve the function arguments. r8d will hold cur_match
-;;; throughout the entire function. edx will hold the pointer to the
-;;; deflate_state structure during the function's setup (before
-;;; entering the main loop.
-
-; parameter 1 in rcx (deflate_state* s), param 2 in edx -> r8 (cur match)
-
-; this clear high 32 bits of r8, which can be garbage in both r8 and rdx
-
-        mov [save_rdi],rdi
-        mov [save_rsi],rsi
-        mov [save_rbx],rbx
-        mov [save_rbp],rbp
-IFDEF INFOZIP
-        mov r8d,ecx
-ELSE
-        mov r8d,edx
-ENDIF
-        mov [save_r12],r12
-        mov [save_r13],r13
-;        mov [save_r14],r14
-;        mov [save_r15],r15
-
-
-;;; uInt wmask = s->w_mask;
-;;; unsigned chain_length = s->max_chain_length;
-;;; if (s->prev_length >= s->good_match) {
-;;;     chain_length >>= 2;
-;;; }
-
-        mov edi, prev_length
-        mov esi, good_match
-        mov eax, WMask
-        mov ebx, max_chain_length
-        cmp edi, esi
-        jl  LastMatchGood
-        shr ebx, 2
-LastMatchGood:
-
-;;; chainlen is decremented once beforehand so that the function can
-;;; use the sign flag instead of the zero flag for the exit test.
-;;; It is then shifted into the high word, to make room for the wmask
-;;; value, which it will always accompany.
-
-        dec ebx
-        shl ebx, 16
-        or  ebx, eax
-
-;;; on zlib only
-;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
-IFDEF INFOZIP
-        mov [chainlenwmask], ebx
-; on infozip nice_match = [nice_match]
-ELSE
-        mov eax, nice_match
-        mov [chainlenwmask], ebx
-        mov r10d, Lookahead
-        cmp r10d, eax
-        cmovnl r10d, eax
-        mov [nicematch],r10d
-ENDIF
-
-;;; register Bytef *scan = s->window + s->strstart;
-        mov r10, window_ad
-        mov ebp, strstart
-        lea r13, [r10 + rbp]
-
-;;; Determine how many bytes the scan ptr is off from being
-;;; dword-aligned.
-
-         mov r9,r13
-         neg r13
-         and r13,3
-
-;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
-;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
-IFDEF INFOZIP
-        mov eax,07efah ; MAX_DIST = (WSIZE-MIN_LOOKAHEAD) (0x8000-(3+8+1))
-ELSE
-        mov eax, window_size
-        sub eax, MIN_LOOKAHEAD
-ENDIF
-        xor edi,edi
-        sub ebp, eax
-
-        mov r11d, prev_length
-
-        cmovng ebp,edi
-
-;;; int best_len = s->prev_length;
-
-
-;;; Store the sum of s->window + best_len in esi locally, and in esi.
-
-       lea  rsi,[r10+r11]
-
-;;; register ush scan_start = *(ushf*)scan;
-;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
-;;; Posf *prev = s->prev;
-
-        movzx r12d,word ptr [r9]
-        movzx ebx, word ptr [r9 + r11 - 1]
-
-        mov rdi, prev_ad
-
-;;; Jump into the main loop.
-
-        mov edx, [chainlenwmask]
-
-        cmp bx,word ptr [rsi + r8 - 1]
-        jz  LookupLoopIsZero
-
-LookupLoop1:
-        and r8d, edx
-
-        movzx   r8d, word ptr [rdi + r8*2]
-        cmp r8d, ebp
-        jbe LeaveNow
-        sub edx, 00010000h
-        js  LeaveNow
-
-LoopEntry1:
-        cmp bx,word ptr [rsi + r8 - 1]
-        jz  LookupLoopIsZero
-
-LookupLoop2:
-        and r8d, edx
-
-        movzx   r8d, word ptr [rdi + r8*2]
-        cmp r8d, ebp
-        jbe LeaveNow
-        sub edx, 00010000h
-        js  LeaveNow
-
-LoopEntry2:
-        cmp bx,word ptr [rsi + r8 - 1]
-        jz  LookupLoopIsZero
-
-LookupLoop4:
-        and r8d, edx
-
-        movzx   r8d, word ptr [rdi + r8*2]
-        cmp r8d, ebp
-        jbe LeaveNow
-        sub edx, 00010000h
-        js  LeaveNow
-
-LoopEntry4:
-
-        cmp bx,word ptr [rsi + r8 - 1]
-        jnz LookupLoop1
-        jmp LookupLoopIsZero
-
-
-;;; do {
-;;;     match = s->window + cur_match;
-;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
-;;;         *(ushf*)match != scan_start) continue;
-;;;     [...]
-;;; } while ((cur_match = prev[cur_match & wmask]) > limit
-;;;          && --chain_length != 0);
-;;;
-;;; Here is the inner loop of the function. The function will spend the
-;;; majority of its time in this loop, and majority of that time will
-;;; be spent in the first ten instructions.
-;;;
-;;; Within this loop:
-;;; ebx = scanend
-;;; r8d = curmatch
-;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
-;;; esi = windowbestlen - i.e., (window + bestlen)
-;;; edi = prev
-;;; ebp = limit
-
-LookupLoop:
-        and r8d, edx
-
-        movzx   r8d, word ptr [rdi + r8*2]
-        cmp r8d, ebp
-        jbe LeaveNow
-        sub edx, 00010000h
-        js  LeaveNow
-
-LoopEntry:
-
-        cmp bx,word ptr [rsi + r8 - 1]
-        jnz LookupLoop1
-LookupLoopIsZero:
-        cmp     r12w, word ptr [r10 + r8]
-        jnz LookupLoop1
-
-
-;;; Store the current value of chainlen.
-        mov [chainlenwmask], edx
-
-;;; Point edi to the string under scrutiny, and esi to the string we
-;;; are hoping to match it up with. In actuality, esi and edi are
-;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
-;;; initialized to -(MAX_MATCH_8 - scanalign).
-
-        lea rsi,[r8+r10]
-        mov rdx, 0fffffffffffffef8h; -(MAX_MATCH_8)
-        lea rsi, [rsi + r13 + 0108h] ;MAX_MATCH_8]
-        lea rdi, [r9 + r13 + 0108h] ;MAX_MATCH_8]
-
-        prefetcht1 [rsi+rdx]
-        prefetcht1 [rdi+rdx]
-
-
-;;; Test the strings for equality, 8 bytes at a time. At the end,
-;;; adjust rdx so that it is offset to the exact byte that mismatched.
-;;;
-;;; We already know at this point that the first three bytes of the
-;;; strings match each other, and they can be safely passed over before
-;;; starting the compare loop. So what this code does is skip over 0-3
-;;; bytes, as much as necessary in order to dword-align the edi
-;;; pointer. (rsi will still be misaligned three times out of four.)
-;;;
-;;; It should be confessed that this loop usually does not represent
-;;; much of the total running time. Replacing it with a more
-;;; straightforward "rep cmpsb" would not drastically degrade
-;;; performance.
-
-
-LoopCmps:
-        mov rax, [rsi + rdx]
-        xor rax, [rdi + rdx]
-        jnz LeaveLoopCmps
-
-        mov rax, [rsi + rdx + 8]
-        xor rax, [rdi + rdx + 8]
-        jnz LeaveLoopCmps8
-
-
-        mov rax, [rsi + rdx + 8+8]
-        xor rax, [rdi + rdx + 8+8]
-        jnz LeaveLoopCmps16
-
-        add rdx,8+8+8
-
-        jnz short LoopCmps
-        jmp short LenMaximum
-LeaveLoopCmps16: add rdx,8
-LeaveLoopCmps8: add rdx,8
-LeaveLoopCmps:
-
-        test    eax, 0000FFFFh
-        jnz LenLower
-
-        test eax,0ffffffffh
-
-        jnz LenLower32
-
-        add rdx,4
-        shr rax,32
-        or ax,ax
-        jnz LenLower
-
-LenLower32:
-        shr eax,16
-        add rdx,2
-LenLower:   sub al, 1
-        adc rdx, 0
-;;; Calculate the length of the match. If it is longer than MAX_MATCH,
-;;; then automatically accept it as the best possible match and leave.
-
-        lea rax, [rdi + rdx]
-        sub rax, r9
-        cmp eax, MAX_MATCH
-        jge LenMaximum
-
-;;; If the length of the match is not longer than the best match we
-;;; have so far, then forget it and return to the lookup loop.
-;///////////////////////////////////
-
-        cmp eax, r11d
-        jg  LongerMatch
-
-        lea rsi,[r10+r11]
-
-        mov rdi, prev_ad
-        mov edx, [chainlenwmask]
-        jmp LookupLoop
-
-;;;         s->match_start = cur_match;
-;;;         best_len = len;
-;;;         if (len >= nice_match) break;
-;;;         scan_end = *(ushf*)(scan+best_len-1);
-
-LongerMatch:
-        mov r11d, eax
-        mov match_start, r8d
-        cmp eax, [nicematch]
-        jge LeaveNow
-
-        lea rsi,[r10+rax]
-
-        movzx   ebx, word ptr [r9 + rax - 1]
-        mov rdi, prev_ad
-        mov edx, [chainlenwmask]
-        jmp LookupLoop
-
-;;; Accept the current string, with the maximum possible length.
-
-LenMaximum:
-        mov r11d,MAX_MATCH
-        mov match_start, r8d
-
-;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
-;;; return s->lookahead;
-
-LeaveNow:
-IFDEF INFOZIP
-        mov eax,r11d
-ELSE
-        mov eax, Lookahead
-        cmp r11d, eax
-        cmovng eax, r11d
-ENDIF
-
-;;; Restore the stack and return from whence we came.
-
-
-        mov rsi,[save_rsi]
-        mov rdi,[save_rdi]
-        mov rbx,[save_rbx]
-        mov rbp,[save_rbp]
-        mov r12,[save_r12]
-        mov r13,[save_r13]
-;        mov r14,[save_r14]
-;        mov r15,[save_r15]
-
-
-        ret 0
-; please don't remove this string !
-; Your can freely use gvmat64 in any free or commercial app
-; but it is far better don't remove the string in the binary!
-    db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998, converted to amd 64 by Gilles Vollant 2005",0dh,0ah,0
-longest_match   ENDP
-
-match_init PROC
-  ret 0
-match_init ENDP
-
-
-END
diff --git a/contrib/masmx64/inffas8664.c b/contrib/masmx64/inffas8664.c
deleted file mode 100644
index e8af06f..0000000
--- a/contrib/masmx64/inffas8664.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/* inffas8664.c is a hand tuned assembler version of inffast.c - fast decoding
- * version for AMD64 on Windows using Microsoft C compiler
- *
- * Copyright (C) 1995-2003 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- * Copyright (C) 2003 Chris Anderson <christop@charm.net>
- * Please use the copyright conditions above.
- *
- * 2005 - Adaptation to Microsoft C Compiler for AMD64 by Gilles Vollant
- *
- * inffas8664.c call function inffas8664fnc in inffasx64.asm
- *  inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
- *
- * Dec-29-2003 -- I added AMD64 inflate asm support.  This version is also
- * slightly quicker on x86 systems because, instead of using rep movsb to copy
- * data, it uses rep movsw, which moves data in 2-byte chunks instead of single
- * bytes.  I've tested the AMD64 code on a Fedora Core 1 + the x86_64 updates
- * from http://fedora.linux.duke.edu/fc1_x86_64
- * which is running on an Athlon 64 3000+ / Gigabyte GA-K8VT800M system with
- * 1GB ram.  The 64-bit version is about 4% faster than the 32-bit version,
- * when decompressing mozilla-source-1.3.tar.gz.
- *
- * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
- * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
- * the moment.  I have successfully compiled and tested this code with gcc2.96,
- * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
- * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
- * enabled.  I will attempt to merge the MMX code into this version.  Newer
- * versions of this and inffast.S can be found at
- * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
- *
- */
-
-#include <stdio.h>
-#include "zutil.h"
-#include "inftrees.h"
-#include "inflate.h"
-#include "inffast.h"
-
-/* Mark Adler's comments from inffast.c: */
-
-/*
-   Decode literal, length, and distance codes and write out the resulting
-   literal and match bytes until either not enough input or output is
-   available, an end-of-block is encountered, or a data error is encountered.
-   When large enough input and output buffers are supplied to inflate(), for
-   example, a 16K input buffer and a 64K output buffer, more than 95% of the
-   inflate execution time is spent in this routine.
-
-   Entry assumptions:
-
-        state->mode == LEN
-        strm->avail_in >= 6
-        strm->avail_out >= 258
-        start >= strm->avail_out
-        state->bits < 8
-
-   On return, state->mode is one of:
-
-        LEN -- ran out of enough output space or enough available input
-        TYPE -- reached end of block code, inflate() to interpret next block
-        BAD -- error in block data
-
-   Notes:
-
-    - The maximum input bits used by a length/distance pair is 15 bits for the
-      length code, 5 bits for the length extra, 15 bits for the distance code,
-      and 13 bits for the distance extra.  This totals 48 bits, or six bytes.
-      Therefore if strm->avail_in >= 6, then there is enough input to avoid
-      checking for available input while decoding.
-
-    - The maximum bytes that a single length/distance pair can output is 258
-      bytes, which is the maximum length that can be coded.  inflate_fast()
-      requires strm->avail_out >= 258 for each loop to avoid checking for
-      output space.
- */
-
-
-
-    typedef struct inffast_ar {
-/* 64   32                               x86  x86_64 */
-/* ar offset                              register */
-/*  0    0 */ void *esp;                /* esp save */
-/*  8    4 */ void *ebp;                /* ebp save */
-/* 16    8 */ unsigned char FAR *in;    /* esi rsi  local strm->next_in */
-/* 24   12 */ unsigned char FAR *last;  /*     r9   while in < last */
-/* 32   16 */ unsigned char FAR *out;   /* edi rdi  local strm->next_out */
-/* 40   20 */ unsigned char FAR *beg;   /*          inflate()'s init next_out */
-/* 48   24 */ unsigned char FAR *end;   /*     r10  while out < end */
-/* 56   28 */ unsigned char FAR *window;/*          size of window, wsize!=0 */
-/* 64   32 */ code const FAR *lcode;    /* ebp rbp  local strm->lencode */
-/* 72   36 */ code const FAR *dcode;    /*     r11  local strm->distcode */
-/* 80   40 */ size_t /*unsigned long */hold;       /* edx rdx  local strm->hold */
-/* 88   44 */ unsigned bits;            /* ebx rbx  local strm->bits */
-/* 92   48 */ unsigned wsize;           /*          window size */
-/* 96   52 */ unsigned write;           /*          window write index */
-/*100   56 */ unsigned lmask;           /*     r12  mask for lcode */
-/*104   60 */ unsigned dmask;           /*     r13  mask for dcode */
-/*108   64 */ unsigned len;             /*     r14  match length */
-/*112   68 */ unsigned dist;            /*     r15  match distance */
-/*116   72 */ unsigned status;          /*          set when state chng*/
-    } type_ar;
-#ifdef ASMINF
-
-void inflate_fast(strm, start)
-z_streamp strm;
-unsigned start;         /* inflate()'s starting value for strm->avail_out */
-{
-    struct inflate_state FAR *state;
-    type_ar ar;
-    void inffas8664fnc(struct inffast_ar * par);
-
-
-
-#if (defined( __GNUC__ ) && defined( __amd64__ ) && ! defined( __i386 )) || (defined(_MSC_VER) && defined(_M_AMD64))
-#define PAD_AVAIL_IN 6
-#define PAD_AVAIL_OUT 258
-#else
-#define PAD_AVAIL_IN 5
-#define PAD_AVAIL_OUT 257
-#endif
-
-    /* copy state to local variables */
-    state = (struct inflate_state FAR *)strm->state;
-
-    ar.in = strm->next_in;
-    ar.last = ar.in + (strm->avail_in - PAD_AVAIL_IN);
-    ar.out = strm->next_out;
-    ar.beg = ar.out - (start - strm->avail_out);
-    ar.end = ar.out + (strm->avail_out - PAD_AVAIL_OUT);
-    ar.wsize = state->wsize;
-    ar.write = state->wnext;
-    ar.window = state->window;
-    ar.hold = state->hold;
-    ar.bits = state->bits;
-    ar.lcode = state->lencode;
-    ar.dcode = state->distcode;
-    ar.lmask = (1U << state->lenbits) - 1;
-    ar.dmask = (1U << state->distbits) - 1;
-
-    /* decode literals and length/distances until end-of-block or not enough
-       input data or output space */
-
-    /* align in on 1/2 hold size boundary */
-    while (((size_t)(void *)ar.in & (sizeof(ar.hold) / 2 - 1)) != 0) {
-        ar.hold += (unsigned long)*ar.in++ << ar.bits;
-        ar.bits += 8;
-    }
-
-    inffas8664fnc(&ar);
-
-    if (ar.status > 1) {
-        if (ar.status == 2)
-            strm->msg = "invalid literal/length code";
-        else if (ar.status == 3)
-            strm->msg = "invalid distance code";
-        else
-            strm->msg = "invalid distance too far back";
-        state->mode = BAD;
-    }
-    else if ( ar.status == 1 ) {
-        state->mode = TYPE;
-    }
-
-    /* return unused bytes (on entry, bits < 8, so in won't go too far back) */
-    ar.len = ar.bits >> 3;
-    ar.in -= ar.len;
-    ar.bits -= ar.len << 3;
-    ar.hold &= (1U << ar.bits) - 1;
-
-    /* update state and return */
-    strm->next_in = ar.in;
-    strm->next_out = ar.out;
-    strm->avail_in = (unsigned)(ar.in < ar.last ?
-                                PAD_AVAIL_IN + (ar.last - ar.in) :
-                                PAD_AVAIL_IN - (ar.in - ar.last));
-    strm->avail_out = (unsigned)(ar.out < ar.end ?
-                                 PAD_AVAIL_OUT + (ar.end - ar.out) :
-                                 PAD_AVAIL_OUT - (ar.out - ar.end));
-    state->hold = (unsigned long)ar.hold;
-    state->bits = ar.bits;
-    return;
-}
-
-#endif
diff --git a/contrib/masmx64/inffasx64.asm b/contrib/masmx64/inffasx64.asm
deleted file mode 100644
index 60a8d89..0000000
--- a/contrib/masmx64/inffasx64.asm
+++ /dev/null
@@ -1,396 +0,0 @@
-; inffasx64.asm is a hand tuned assembler version of inffast.c - fast decoding
-; version for AMD64 on Windows using Microsoft C compiler
-;
-; inffasx64.asm is automatically convert from AMD64 portion of inffas86.c
-; inffasx64.asm is called by inffas8664.c, which contain more info.
-
-
-; to compile this file, I use option
-;   ml64.exe /Flinffasx64 /c /Zi inffasx64.asm
-;   with Microsoft Macro Assembler (x64) for AMD64
-;
-
-; This file compile with Microsoft Macro Assembler (x64) for AMD64
-;
-;   ml64.exe is given with Visual Studio 2005/2008/2010 and Windows WDK
-;
-;   (you can get Windows WDK with ml64 for AMD64 from
-;      http://www.microsoft.com/whdc/Devtools/wdk/default.mspx for low price)
-;
-
-
-.code
-inffas8664fnc PROC
-
-; see http://weblogs.asp.net/oldnewthing/archive/2004/01/14/58579.aspx and
-; http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/64bitAMD_8e951dd2-ee77-4728-8702-55ce4b5dd24a.xml.asp
-;
-; All registers must be preserved across the call, except for
-;   rax, rcx, rdx, r8, r-9, r10, and r11, which are scratch.
-
-
-	mov [rsp-8],rsi
-	mov [rsp-16],rdi
-	mov [rsp-24],r12
-	mov [rsp-32],r13
-	mov [rsp-40],r14
-	mov [rsp-48],r15
-	mov [rsp-56],rbx
-
-	mov rax,rcx
-
-	mov	[rax+8], rbp       ; /* save regs rbp and rsp */
-	mov	[rax], rsp
-
-	mov	rsp, rax          ; /* make rsp point to &ar */
-
-	mov	rsi, [rsp+16]      ; /* rsi  = in */
-	mov	rdi, [rsp+32]      ; /* rdi  = out */
-	mov	r9, [rsp+24]       ; /* r9   = last */
-	mov	r10, [rsp+48]      ; /* r10  = end */
-	mov	rbp, [rsp+64]      ; /* rbp  = lcode */
-	mov	r11, [rsp+72]      ; /* r11  = dcode */
-	mov	rdx, [rsp+80]      ; /* rdx  = hold */
-	mov	ebx, [rsp+88]      ; /* ebx  = bits */
-	mov	r12d, [rsp+100]    ; /* r12d = lmask */
-	mov	r13d, [rsp+104]    ; /* r13d = dmask */
-                                          ; /* r14d = len */
-                                          ; /* r15d = dist */
-
-
-	cld
-	cmp	r10, rdi
-	je	L_one_time           ; /* if only one decode left */
-	cmp	r9, rsi
-
-    jne L_do_loop
-
-
-L_one_time:
-	mov	r8, r12           ; /* r8 = lmask */
-	cmp	bl, 32
-	ja	L_get_length_code_one_time
-
-	lodsd                         ; /* eax = *(uint *)in++ */
-	mov	cl, bl            ; /* cl = bits, needs it for shifting */
-	add	bl, 32             ; /* bits += 32 */
-	shl	rax, cl
-	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
-	jmp	L_get_length_code_one_time
-
-ALIGN 4
-L_while_test:
-	cmp	r10, rdi
-	jbe	L_break_loop
-	cmp	r9, rsi
-	jbe	L_break_loop
-
-L_do_loop:
-	mov	r8, r12           ; /* r8 = lmask */
-	cmp	bl, 32
-	ja	L_get_length_code    ; /* if (32 < bits) */
-
-	lodsd                         ; /* eax = *(uint *)in++ */
-	mov	cl, bl            ; /* cl = bits, needs it for shifting */
-	add	bl, 32             ; /* bits += 32 */
-	shl	rax, cl
-	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
-
-L_get_length_code:
-	and	r8, rdx            ; /* r8 &= hold */
-	mov	eax, [rbp+r8*4]  ; /* eax = lcode[hold & lmask] */
-
-	mov	cl, ah            ; /* cl = this.bits */
-	sub	bl, ah            ; /* bits -= this.bits */
-	shr	rdx, cl           ; /* hold >>= this.bits */
-
-	test	al, al
-	jnz	L_test_for_length_base ; /* if (op != 0) 45.7% */
-
-	mov	r8, r12            ; /* r8 = lmask */
-	shr	eax, 16            ; /* output this.val char */
-	stosb
-
-L_get_length_code_one_time:
-	and	r8, rdx            ; /* r8 &= hold */
-	mov	eax, [rbp+r8*4] ; /* eax = lcode[hold & lmask] */
-
-L_dolen:
-	mov	cl, ah            ; /* cl = this.bits */
-	sub	bl, ah            ; /* bits -= this.bits */
-	shr	rdx, cl           ; /* hold >>= this.bits */
-
-	test	al, al
-	jnz	L_test_for_length_base ; /* if (op != 0) 45.7% */
-
-	shr	eax, 16            ; /* output this.val char */
-	stosb
-	jmp	L_while_test
-
-ALIGN 4
-L_test_for_length_base:
-	mov	r14d, eax         ; /* len = this */
-	shr	r14d, 16           ; /* len = this.val */
-	mov	cl, al
-
-	test	al, 16
-	jz	L_test_for_second_level_length ; /* if ((op & 16) == 0) 8% */
-	and	cl, 15             ; /* op &= 15 */
-	jz	L_decode_distance    ; /* if (!op) */
-
-L_add_bits_to_len:
-	sub	bl, cl
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx          ; /* eax &= hold */
-	shr	rdx, cl
-	add	r14d, eax         ; /* len += hold & mask[op] */
-
-L_decode_distance:
-	mov	r8, r13           ; /* r8 = dmask */
-	cmp	bl, 32
-	ja	L_get_distance_code  ; /* if (32 < bits) */
-
-	lodsd                         ; /* eax = *(uint *)in++ */
-	mov	cl, bl            ; /* cl = bits, needs it for shifting */
-	add	bl, 32             ; /* bits += 32 */
-	shl	rax, cl
-	or	rdx, rax          ; /* hold |= *((uint *)in)++ << bits */
-
-L_get_distance_code:
-	and	r8, rdx           ; /* r8 &= hold */
-	mov	eax, [r11+r8*4] ; /* eax = dcode[hold & dmask] */
-
-L_dodist:
-	mov	r15d, eax         ; /* dist = this */
-	shr	r15d, 16           ; /* dist = this.val */
-	mov	cl, ah
-	sub	bl, ah            ; /* bits -= this.bits */
-	shr	rdx, cl           ; /* hold >>= this.bits */
-	mov	cl, al            ; /* cl = this.op */
-
-	test	al, 16             ; /* if ((op & 16) == 0) */
-	jz	L_test_for_second_level_dist
-	and	cl, 15             ; /* op &= 15 */
-	jz	L_check_dist_one
-
-L_add_bits_to_dist:
-	sub	bl, cl
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax                 ; /* (1 << op) - 1 */
-	and	eax, edx          ; /* eax &= hold */
-	shr	rdx, cl
-	add	r15d, eax         ; /* dist += hold & ((1 << op) - 1) */
-
-L_check_window:
-	mov	r8, rsi           ; /* save in so from can use it's reg */
-	mov	rax, rdi
-	sub	rax, [rsp+40]      ; /* nbytes = out - beg */
-
-	cmp	eax, r15d
-	jb	L_clip_window        ; /* if (dist > nbytes) 4.2% */
-
-	mov	ecx, r14d         ; /* ecx = len */
-	mov	rsi, rdi
-	sub	rsi, r15          ; /* from = out - dist */
-
-	sar	ecx, 1
-	jnc	L_copy_two           ; /* if len % 2 == 0 */
-
-	rep     movsw
-	mov	al, [rsi]
-	mov	[rdi], al
-	inc	rdi
-
-	mov	rsi, r8           ; /* move in back to %rsi, toss from */
-	jmp	L_while_test
-
-L_copy_two:
-	rep     movsw
-	mov	rsi, r8           ; /* move in back to %rsi, toss from */
-	jmp	L_while_test
-
-ALIGN 4
-L_check_dist_one:
-	cmp	r15d, 1            ; /* if dist 1, is a memset */
-	jne	L_check_window
-	cmp	[rsp+40], rdi      ; /* if out == beg, outside window */
-	je	L_check_window
-
-	mov	ecx, r14d         ; /* ecx = len */
-	mov	al, [rdi-1]
-	mov	ah, al
-
-	sar	ecx, 1
-	jnc	L_set_two
-	mov	[rdi], al
-	inc	rdi
-
-L_set_two:
-	rep     stosw
-	jmp	L_while_test
-
-ALIGN 4
-L_test_for_second_level_length:
-	test	al, 64
-	jnz	L_test_for_end_of_block ; /* if ((op & 64) != 0) */
-
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx         ; /* eax &= hold */
-	add	eax, r14d        ; /* eax += len */
-	mov	eax, [rbp+rax*4] ; /* eax = lcode[val+(hold&mask[op])]*/
-	jmp	L_dolen
-
-ALIGN 4
-L_test_for_second_level_dist:
-	test	al, 64
-	jnz	L_invalid_distance_code ; /* if ((op & 64) != 0) */
-
-	xor	eax, eax
-	inc	eax
-	shl	eax, cl
-	dec	eax
-	and	eax, edx         ; /* eax &= hold */
-	add	eax, r15d        ; /* eax += dist */
-	mov	eax, [r11+rax*4] ; /* eax = dcode[val+(hold&mask[op])]*/
-	jmp	L_dodist
-
-ALIGN 4
-L_clip_window:
-	mov	ecx, eax         ; /* ecx = nbytes */
-	mov	eax, [rsp+92]     ; /* eax = wsize, prepare for dist cmp */
-	neg	ecx                ; /* nbytes = -nbytes */
-
-	cmp	eax, r15d
-	jb	L_invalid_distance_too_far ; /* if (dist > wsize) */
-
-	add	ecx, r15d         ; /* nbytes = dist - nbytes */
-	cmp	dword ptr [rsp+96], 0
-	jne	L_wrap_around_window ; /* if (write != 0) */
-
-	mov	rsi, [rsp+56]     ; /* from  = window */
-	sub	eax, ecx         ; /* eax  -= nbytes */
-	add	rsi, rax         ; /* from += wsize - nbytes */
-
-	mov	eax, r14d        ; /* eax = len */
-	cmp	r14d, ecx
-	jbe	L_do_copy           ; /* if (nbytes >= len) */
-
-	sub	eax, ecx         ; /* eax -= nbytes */
-	rep     movsb
-	mov	rsi, rdi
-	sub	rsi, r15         ; /* from = &out[ -dist ] */
-	jmp	L_do_copy
-
-ALIGN 4
-L_wrap_around_window:
-	mov	eax, [rsp+96]     ; /* eax = write */
-	cmp	ecx, eax
-	jbe	L_contiguous_in_window ; /* if (write >= nbytes) */
-
-	mov	esi, [rsp+92]     ; /* from  = wsize */
-	add	rsi, [rsp+56]     ; /* from += window */
-	add	rsi, rax         ; /* from += write */
-	sub	rsi, rcx         ; /* from -= nbytes */
-	sub	ecx, eax         ; /* nbytes -= write */
-
-	mov	eax, r14d        ; /* eax = len */
-	cmp	eax, ecx
-	jbe	L_do_copy           ; /* if (nbytes >= len) */
-
-	sub	eax, ecx         ; /* len -= nbytes */
-	rep     movsb
-	mov	rsi, [rsp+56]     ; /* from = window */
-	mov	ecx, [rsp+96]     ; /* nbytes = write */
-	cmp	eax, ecx
-	jbe	L_do_copy           ; /* if (nbytes >= len) */
-
-	sub	eax, ecx         ; /* len -= nbytes */
-	rep     movsb
-	mov	rsi, rdi
-	sub	rsi, r15         ; /* from = out - dist */
-	jmp	L_do_copy
-
-ALIGN 4
-L_contiguous_in_window:
-	mov	rsi, [rsp+56]     ; /* rsi = window */
-	add	rsi, rax
-	sub	rsi, rcx         ; /* from += write - nbytes */
-
-	mov	eax, r14d        ; /* eax = len */
-	cmp	eax, ecx
-	jbe	L_do_copy           ; /* if (nbytes >= len) */
-
-	sub	eax, ecx         ; /* len -= nbytes */
-	rep     movsb
-	mov	rsi, rdi
-	sub	rsi, r15         ; /* from = out - dist */
-	jmp	L_do_copy           ; /* if (nbytes >= len) */
-
-ALIGN 4
-L_do_copy:
-	mov	ecx, eax         ; /* ecx = len */
-	rep     movsb
-
-	mov	rsi, r8          ; /* move in back to %esi, toss from */
-	jmp	L_while_test
-
-L_test_for_end_of_block:
-	test	al, 32
-	jz	L_invalid_literal_length_code
-	mov	dword ptr [rsp+116], 1
-	jmp	L_break_loop_with_status
-
-L_invalid_literal_length_code:
-	mov	dword ptr [rsp+116], 2
-	jmp	L_break_loop_with_status
-
-L_invalid_distance_code:
-	mov	dword ptr [rsp+116], 3
-	jmp	L_break_loop_with_status
-
-L_invalid_distance_too_far:
-	mov	dword ptr [rsp+116], 4
-	jmp	L_break_loop_with_status
-
-L_break_loop:
-	mov	dword ptr [rsp+116], 0
-
-L_break_loop_with_status:
-; /* put in, out, bits, and hold back into ar and pop esp */
-	mov	[rsp+16], rsi     ; /* in */
-	mov	[rsp+32], rdi     ; /* out */
-	mov	[rsp+88], ebx     ; /* bits */
-	mov	[rsp+80], rdx     ; /* hold */
-
-	mov	rax, [rsp]       ; /* restore rbp and rsp */
-	mov	rbp, [rsp+8]
-	mov	rsp, rax
-
-
-
-	mov rsi,[rsp-8]
-	mov rdi,[rsp-16]
-	mov r12,[rsp-24]
-	mov r13,[rsp-32]
-	mov r14,[rsp-40]
-	mov r15,[rsp-48]
-	mov rbx,[rsp-56]
-
-    ret 0
-;          :
-;          : "m" (ar)
-;          : "memory", "%rax", "%rbx", "%rcx", "%rdx", "%rsi", "%rdi",
-;            "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
-;    );
-
-inffas8664fnc 	ENDP
-;_TEXT	ENDS
-END
diff --git a/contrib/masmx64/readme.txt b/contrib/masmx64/readme.txt
deleted file mode 100644
index 2da6733..0000000
--- a/contrib/masmx64/readme.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-Summary
--------
-This directory contains ASM implementations of the functions
-longest_match() and inflate_fast(), for 64 bits x86 (both AMD64 and Intel EM64t),
-for use with Microsoft Macro Assembler (x64) for AMD64 and Microsoft C++ 64 bits.
-
-gvmat64.asm is written by Gilles Vollant (2005), by using Brian Raiter 686/32 bits
-   assembly optimized version from Jean-loup Gailly original longest_match function
-
-inffasx64.asm and inffas8664.c were written by Chris Anderson, by optimizing
-   original function from Mark Adler
-
-Use instructions
-----------------
-Assemble the .asm files using MASM and put the object files into the zlib source
-directory.  You can also get object files here:
-
-     http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
-
-define ASMV and ASMINF in your project. Include inffas8664.c in your source tree,
-and inffasx64.obj and gvmat64.obj as object to link.
-
-
-Build instructions
-------------------
-run bld_64.bat with Microsoft Macro Assembler (x64) for AMD64 (ml64.exe)
-
-ml64.exe is given with Visual Studio 2005, Windows 2003 server DDK
-
-You can get Windows 2003 server DDK with ml64 and cl for AMD64 from
-  http://www.microsoft.com/whdc/devtools/ddk/default.mspx for low price)
diff --git a/contrib/masmx86/bld_ml32.bat b/contrib/masmx86/bld_ml32.bat
deleted file mode 100644
index e1b86bf..0000000
--- a/contrib/masmx86/bld_ml32.bat
+++ /dev/null
@@ -1,2 +0,0 @@
-ml /coff /Zi /c /Flmatch686.lst match686.asm
-ml /coff /Zi /c /Flinffas32.lst inffas32.asm
diff --git a/contrib/masmx86/inffas32.asm b/contrib/masmx86/inffas32.asm
deleted file mode 100644
index 03d20f8..0000000
--- a/contrib/masmx86/inffas32.asm
+++ /dev/null
@@ -1,1080 +0,0 @@
-;/* inffas32.asm is a hand tuned assembler version of inffast.c -- fast decoding
-; *
-; * inffas32.asm is derivated from inffas86.c, with translation of assembly code
-; *
-; * Copyright (C) 1995-2003 Mark Adler
-; * For conditions of distribution and use, see copyright notice in zlib.h
-; *
-; * Copyright (C) 2003 Chris Anderson <christop@charm.net>
-; * Please use the copyright conditions above.
-; *
-; * Mar-13-2003 -- Most of this is derived from inffast.S which is derived from
-; * the gcc -S output of zlib-1.2.0/inffast.c.  Zlib-1.2.0 is in beta release at
-; * the moment.  I have successfully compiled and tested this code with gcc2.96,
-; * gcc3.2, icc5.0, msvc6.0.  It is very close to the speed of inffast.S
-; * compiled with gcc -DNO_MMX, but inffast.S is still faster on the P3 with MMX
-; * enabled.  I will attempt to merge the MMX code into this version.  Newer
-; * versions of this and inffast.S can be found at
-; * http://www.eetbeetee.com/zlib/ and http://www.charm.net/~christop/zlib/
-; *
-; * 2005 : modification by Gilles Vollant
-; */
-; For Visual C++ 4.x and higher and ML 6.x and higher
-;   ml.exe is in directory \MASM611C of Win95 DDK
-;   ml.exe is also distributed in http://www.masm32.com/masmdl.htm
-;    and in VC++2003 toolkit at http://msdn.microsoft.com/visualc/vctoolkit2003/
-;
-;
-;   compile with command line option
-;   ml  /coff /Zi /c /Flinffas32.lst inffas32.asm
-
-;   if you define NO_GZIP (see inflate.h), compile with
-;   ml  /coff /Zi /c /Flinffas32.lst /DNO_GUNZIP inffas32.asm
-
-
-; zlib122sup is 0 fort zlib 1.2.2.1 and lower
-; zlib122sup is 8 fort zlib 1.2.2.2 and more (with addition of dmax and head
-;        in inflate_state in inflate.h)
-zlib1222sup      equ    8
-
-
-IFDEF GUNZIP
-  INFLATE_MODE_TYPE    equ 11
-  INFLATE_MODE_BAD     equ 26
-ELSE
-  IFNDEF NO_GUNZIP
-    INFLATE_MODE_TYPE    equ 11
-    INFLATE_MODE_BAD     equ 26
-  ELSE
-    INFLATE_MODE_TYPE    equ 3
-    INFLATE_MODE_BAD     equ 17
-  ENDIF
-ENDIF
-
-
-; 75 "inffast.S"
-;FILE "inffast.S"
-
-;;;GLOBAL _inflate_fast
-
-;;;SECTION .text
-
-
-
-	.586p
-	.mmx
-
-	name	inflate_fast_x86
-	.MODEL	FLAT
-
-_DATA			segment
-inflate_fast_use_mmx:
-	dd	1
-
-
-_TEXT			segment
-
-
-
-ALIGN 4
-	db	'Fast decoding Code from Chris Anderson'
-	db	0
-
-ALIGN 4
-invalid_literal_length_code_msg:
-	db	'invalid literal/length code'
-	db	0
-
-ALIGN 4
-invalid_distance_code_msg:
-	db	'invalid distance code'
-	db	0
-
-ALIGN 4
-invalid_distance_too_far_msg:
-	db	'invalid distance too far back'
-	db	0
-
-
-ALIGN 4
-inflate_fast_mask:
-dd	0
-dd	1
-dd	3
-dd	7
-dd	15
-dd	31
-dd	63
-dd	127
-dd	255
-dd	511
-dd	1023
-dd	2047
-dd	4095
-dd	8191
-dd	16383
-dd	32767
-dd	65535
-dd	131071
-dd	262143
-dd	524287
-dd	1048575
-dd	2097151
-dd	4194303
-dd	8388607
-dd	16777215
-dd	33554431
-dd	67108863
-dd	134217727
-dd	268435455
-dd	536870911
-dd	1073741823
-dd	2147483647
-dd	4294967295
-
-
-mode_state	 equ	0	;/* state->mode	*/
-wsize_state	 equ	(32+zlib1222sup)	;/* state->wsize */
-write_state	 equ	(36+4+zlib1222sup)	;/* state->write */
-window_state	 equ	(40+4+zlib1222sup)	;/* state->window */
-hold_state	 equ	(44+4+zlib1222sup)	;/* state->hold	*/
-bits_state	 equ	(48+4+zlib1222sup)	;/* state->bits	*/
-lencode_state	 equ	(64+4+zlib1222sup)	;/* state->lencode */
-distcode_state	 equ	(68+4+zlib1222sup)	;/* state->distcode */
-lenbits_state	 equ	(72+4+zlib1222sup)	;/* state->lenbits */
-distbits_state	 equ	(76+4+zlib1222sup)	;/* state->distbits */
-
-
-;;SECTION .text
-; 205 "inffast.S"
-;GLOBAL	inflate_fast_use_mmx
-
-;SECTION .data
-
-
-; GLOBAL inflate_fast_use_mmx:object
-;.size inflate_fast_use_mmx, 4
-; 226 "inffast.S"
-;SECTION .text
-
-ALIGN 4
-_inflate_fast proc near
-.FPO (16, 4, 0, 0, 1, 0)
-	push  edi
-	push  esi
-	push  ebp
-	push  ebx
-	pushfd
-	sub  esp,64
-	cld
-
-
-
-
-	mov  esi, [esp+88]
-	mov  edi, [esi+28]
-
-
-
-
-
-
-
-	mov  edx, [esi+4]
-	mov  eax, [esi+0]
-
-	add  edx,eax
-	sub  edx,11
-
-	mov  [esp+44],eax
-	mov  [esp+20],edx
-
-	mov  ebp, [esp+92]
-	mov  ecx, [esi+16]
-	mov  ebx, [esi+12]
-
-	sub  ebp,ecx
-	neg  ebp
-	add  ebp,ebx
-
-	sub  ecx,257
-	add  ecx,ebx
-
-	mov  [esp+60],ebx
-	mov  [esp+40],ebp
-	mov  [esp+16],ecx
-; 285 "inffast.S"
-	mov  eax, [edi+lencode_state]
-	mov  ecx, [edi+distcode_state]
-
-	mov  [esp+8],eax
-	mov  [esp+12],ecx
-
-	mov  eax,1
-	mov  ecx, [edi+lenbits_state]
-	shl  eax,cl
-	dec  eax
-	mov  [esp+0],eax
-
-	mov  eax,1
-	mov  ecx, [edi+distbits_state]
-	shl  eax,cl
-	dec  eax
-	mov  [esp+4],eax
-
-	mov  eax, [edi+wsize_state]
-	mov  ecx, [edi+write_state]
-	mov  edx, [edi+window_state]
-
-	mov  [esp+52],eax
-	mov  [esp+48],ecx
-	mov  [esp+56],edx
-
-	mov  ebp, [edi+hold_state]
-	mov  ebx, [edi+bits_state]
-; 321 "inffast.S"
-	mov  esi, [esp+44]
-	mov  ecx, [esp+20]
-	cmp  ecx,esi
-	ja   L_align_long
-
-	add  ecx,11
-	sub  ecx,esi
-	mov  eax,12
-	sub  eax,ecx
-	lea  edi, [esp+28]
-	rep movsb
-	mov  ecx,eax
-	xor  eax,eax
-	rep stosb
-	lea  esi, [esp+28]
-	mov  [esp+20],esi
-	jmp  L_is_aligned
-
-
-L_align_long:
-	test  esi,3
-	jz   L_is_aligned
-	xor  eax,eax
-	mov  al, [esi]
-	inc  esi
-	mov  ecx,ebx
-	add  ebx,8
-	shl  eax,cl
-	or  ebp,eax
-	jmp L_align_long
-
-L_is_aligned:
-	mov  edi, [esp+60]
-; 366 "inffast.S"
-L_check_mmx:
-	cmp  dword ptr [inflate_fast_use_mmx],2
-	je   L_init_mmx
-	ja   L_do_loop
-
-	push  eax
-	push  ebx
-	push  ecx
-	push  edx
-	pushfd
-	mov  eax, [esp]
-	xor  dword ptr [esp],0200000h
-
-
-
-
-	popfd
-	pushfd
-	pop  edx
-	xor  edx,eax
-	jz   L_dont_use_mmx
-	xor  eax,eax
-	cpuid
-	cmp  ebx,0756e6547h
-	jne  L_dont_use_mmx
-	cmp  ecx,06c65746eh
-	jne  L_dont_use_mmx
-	cmp  edx,049656e69h
-	jne  L_dont_use_mmx
-	mov  eax,1
-	cpuid
-	shr  eax,8
-	and  eax,15
-	cmp  eax,6
-	jne  L_dont_use_mmx
-	test  edx,0800000h
-	jnz  L_use_mmx
-	jmp  L_dont_use_mmx
-L_use_mmx:
-	mov  dword ptr [inflate_fast_use_mmx],2
-	jmp  L_check_mmx_pop
-L_dont_use_mmx:
-	mov  dword ptr [inflate_fast_use_mmx],3
-L_check_mmx_pop:
-	pop  edx
-	pop  ecx
-	pop  ebx
-	pop  eax
-	jmp  L_check_mmx
-; 426 "inffast.S"
-ALIGN 4
-L_do_loop:
-; 437 "inffast.S"
-	cmp  bl,15
-	ja   L_get_length_code
-
-	xor  eax,eax
-	lodsw
-	mov  cl,bl
-	add  bl,16
-	shl  eax,cl
-	or  ebp,eax
-
-L_get_length_code:
-	mov  edx, [esp+0]
-	mov  ecx, [esp+8]
-	and  edx,ebp
-	mov  eax, [ecx+edx*4]
-
-L_dolen:
-
-
-
-
-
-
-	mov  cl,ah
-	sub  bl,ah
-	shr  ebp,cl
-
-
-
-
-
-
-	test  al,al
-	jnz   L_test_for_length_base
-
-	shr  eax,16
-	stosb
-
-L_while_test:
-
-
-	cmp  [esp+16],edi
-	jbe  L_break_loop
-
-	cmp  [esp+20],esi
-	ja   L_do_loop
-	jmp  L_break_loop
-
-L_test_for_length_base:
-; 502 "inffast.S"
-	mov  edx,eax
-	shr  edx,16
-	mov  cl,al
-
-	test  al,16
-	jz   L_test_for_second_level_length
-	and  cl,15
-	jz   L_save_len
-	cmp  bl,cl
-	jae  L_add_bits_to_len
-
-	mov  ch,cl
-	xor  eax,eax
-	lodsw
-	mov  cl,bl
-	add  bl,16
-	shl  eax,cl
-	or  ebp,eax
-	mov  cl,ch
-
-L_add_bits_to_len:
-	mov  eax,1
-	shl  eax,cl
-	dec  eax
-	sub  bl,cl
-	and  eax,ebp
-	shr  ebp,cl
-	add  edx,eax
-
-L_save_len:
-	mov  [esp+24],edx
-
-
-L_decode_distance:
-; 549 "inffast.S"
-	cmp  bl,15
-	ja   L_get_distance_code
-
-	xor  eax,eax
-	lodsw
-	mov  cl,bl
-	add  bl,16
-	shl  eax,cl
-	or  ebp,eax
-
-L_get_distance_code:
-	mov  edx, [esp+4]
-	mov  ecx, [esp+12]
-	and  edx,ebp
-	mov  eax, [ecx+edx*4]
-
-
-L_dodist:
-	mov  edx,eax
-	shr  edx,16
-	mov  cl,ah
-	sub  bl,ah
-	shr  ebp,cl
-; 584 "inffast.S"
-	mov  cl,al
-
-	test  al,16
-	jz  L_test_for_second_level_dist
-	and  cl,15
-	jz  L_check_dist_one
-	cmp  bl,cl
-	jae  L_add_bits_to_dist
-
-	mov  ch,cl
-	xor  eax,eax
-	lodsw
-	mov  cl,bl
-	add  bl,16
-	shl  eax,cl
-	or  ebp,eax
-	mov  cl,ch
-
-L_add_bits_to_dist:
-	mov  eax,1
-	shl  eax,cl
-	dec  eax
-	sub  bl,cl
-	and  eax,ebp
-	shr  ebp,cl
-	add  edx,eax
-	jmp  L_check_window
-
-L_check_window:
-; 625 "inffast.S"
-	mov  [esp+44],esi
-	mov  eax,edi
-	sub  eax, [esp+40]
-
-	cmp  eax,edx
-	jb   L_clip_window
-
-	mov  ecx, [esp+24]
-	mov  esi,edi
-	sub  esi,edx
-
-	sub  ecx,3
-	mov  al, [esi]
-	mov  [edi],al
-	mov  al, [esi+1]
-	mov  dl, [esi+2]
-	add  esi,3
-	mov  [edi+1],al
-	mov  [edi+2],dl
-	add  edi,3
-	rep movsb
-
-	mov  esi, [esp+44]
-	jmp  L_while_test
-
-ALIGN 4
-L_check_dist_one:
-	cmp  edx,1
-	jne  L_check_window
-	cmp  [esp+40],edi
-	je  L_check_window
-
-	dec  edi
-	mov  ecx, [esp+24]
-	mov  al, [edi]
-	sub  ecx,3
-
-	mov  [edi+1],al
-	mov  [edi+2],al
-	mov  [edi+3],al
-	add  edi,4
-	rep stosb
-
-	jmp  L_while_test
-
-ALIGN 4
-L_test_for_second_level_length:
-
-
-
-
-	test  al,64
-	jnz   L_test_for_end_of_block
-
-	mov  eax,1
-	shl  eax,cl
-	dec  eax
-	and  eax,ebp
-	add  eax,edx
-	mov  edx, [esp+8]
-	mov  eax, [edx+eax*4]
-	jmp  L_dolen
-
-ALIGN 4
-L_test_for_second_level_dist:
-
-
-
-
-	test  al,64
-	jnz   L_invalid_distance_code
-
-	mov  eax,1
-	shl  eax,cl
-	dec  eax
-	and  eax,ebp
-	add  eax,edx
-	mov  edx, [esp+12]
-	mov  eax, [edx+eax*4]
-	jmp  L_dodist
-
-ALIGN 4
-L_clip_window:
-; 721 "inffast.S"
-	mov  ecx,eax
-	mov  eax, [esp+52]
-	neg  ecx
-	mov  esi, [esp+56]
-
-	cmp  eax,edx
-	jb   L_invalid_distance_too_far
-
-	add  ecx,edx
-	cmp  dword ptr [esp+48],0
-	jne  L_wrap_around_window
-
-	sub  eax,ecx
-	add  esi,eax
-; 749 "inffast.S"
-	mov  eax, [esp+24]
-	cmp  eax,ecx
-	jbe  L_do_copy1
-
-	sub  eax,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,edx
-	jmp  L_do_copy1
-
-	cmp  eax,ecx
-	jbe  L_do_copy1
-
-	sub  eax,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,edx
-	jmp  L_do_copy1
-
-L_wrap_around_window:
-; 793 "inffast.S"
-	mov  eax, [esp+48]
-	cmp  ecx,eax
-	jbe  L_contiguous_in_window
-
-	add  esi, [esp+52]
-	add  esi,eax
-	sub  esi,ecx
-	sub  ecx,eax
-
-
-	mov  eax, [esp+24]
-	cmp  eax,ecx
-	jbe  L_do_copy1
-
-	sub  eax,ecx
-	rep movsb
-	mov  esi, [esp+56]
-	mov  ecx, [esp+48]
-	cmp  eax,ecx
-	jbe  L_do_copy1
-
-	sub  eax,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,edx
-	jmp  L_do_copy1
-
-L_contiguous_in_window:
-; 836 "inffast.S"
-	add  esi,eax
-	sub  esi,ecx
-
-
-	mov  eax, [esp+24]
-	cmp  eax,ecx
-	jbe  L_do_copy1
-
-	sub  eax,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,edx
-
-L_do_copy1:
-; 862 "inffast.S"
-	mov  ecx,eax
-	rep movsb
-
-	mov  esi, [esp+44]
-	jmp  L_while_test
-; 878 "inffast.S"
-ALIGN 4
-L_init_mmx:
-	emms
-
-
-
-
-
-	movd mm0,ebp
-	mov  ebp,ebx
-; 896 "inffast.S"
-	movd mm4,dword ptr [esp+0]
-	movq mm3,mm4
-	movd mm5,dword ptr [esp+4]
-	movq mm2,mm5
-	pxor mm1,mm1
-	mov  ebx, [esp+8]
-	jmp  L_do_loop_mmx
-
-ALIGN 4
-L_do_loop_mmx:
-	psrlq mm0,mm1
-
-	cmp  ebp,32
-	ja  L_get_length_code_mmx
-
-	movd mm6,ebp
-	movd mm7,dword ptr [esi]
-	add  esi,4
-	psllq mm7,mm6
-	add  ebp,32
-	por mm0,mm7
-
-L_get_length_code_mmx:
-	pand mm4,mm0
-	movd eax,mm4
-	movq mm4,mm3
-	mov  eax, [ebx+eax*4]
-
-L_dolen_mmx:
-	movzx  ecx,ah
-	movd mm1,ecx
-	sub  ebp,ecx
-
-	test  al,al
-	jnz L_test_for_length_base_mmx
-
-	shr  eax,16
-	stosb
-
-L_while_test_mmx:
-
-
-	cmp  [esp+16],edi
-	jbe L_break_loop
-
-	cmp  [esp+20],esi
-	ja L_do_loop_mmx
-	jmp L_break_loop
-
-L_test_for_length_base_mmx:
-
-	mov  edx,eax
-	shr  edx,16
-
-	test  al,16
-	jz  L_test_for_second_level_length_mmx
-	and  eax,15
-	jz L_decode_distance_mmx
-
-	psrlq mm0,mm1
-	movd mm1,eax
-	movd ecx,mm0
-	sub  ebp,eax
-	and  ecx, [inflate_fast_mask+eax*4]
-	add  edx,ecx
-
-L_decode_distance_mmx:
-	psrlq mm0,mm1
-
-	cmp  ebp,32
-	ja L_get_dist_code_mmx
-
-	movd mm6,ebp
-	movd mm7,dword ptr [esi]
-	add  esi,4
-	psllq mm7,mm6
-	add  ebp,32
-	por mm0,mm7
-
-L_get_dist_code_mmx:
-	mov  ebx, [esp+12]
-	pand mm5,mm0
-	movd eax,mm5
-	movq mm5,mm2
-	mov  eax, [ebx+eax*4]
-
-L_dodist_mmx:
-
-	movzx  ecx,ah
-	mov  ebx,eax
-	shr  ebx,16
-	sub  ebp,ecx
-	movd mm1,ecx
-
-	test  al,16
-	jz L_test_for_second_level_dist_mmx
-	and  eax,15
-	jz L_check_dist_one_mmx
-
-L_add_bits_to_dist_mmx:
-	psrlq mm0,mm1
-	movd mm1,eax
-	movd ecx,mm0
-	sub  ebp,eax
-	and  ecx, [inflate_fast_mask+eax*4]
-	add  ebx,ecx
-
-L_check_window_mmx:
-	mov  [esp+44],esi
-	mov  eax,edi
-	sub  eax, [esp+40]
-
-	cmp  eax,ebx
-	jb L_clip_window_mmx
-
-	mov  ecx,edx
-	mov  esi,edi
-	sub  esi,ebx
-
-	sub  ecx,3
-	mov  al, [esi]
-	mov  [edi],al
-	mov  al, [esi+1]
-	mov  dl, [esi+2]
-	add  esi,3
-	mov  [edi+1],al
-	mov  [edi+2],dl
-	add  edi,3
-	rep movsb
-
-	mov  esi, [esp+44]
-	mov  ebx, [esp+8]
-	jmp  L_while_test_mmx
-
-ALIGN 4
-L_check_dist_one_mmx:
-	cmp  ebx,1
-	jne  L_check_window_mmx
-	cmp  [esp+40],edi
-	je   L_check_window_mmx
-
-	dec  edi
-	mov  ecx,edx
-	mov  al, [edi]
-	sub  ecx,3
-
-	mov  [edi+1],al
-	mov  [edi+2],al
-	mov  [edi+3],al
-	add  edi,4
-	rep stosb
-
-	mov  ebx, [esp+8]
-	jmp  L_while_test_mmx
-
-ALIGN 4
-L_test_for_second_level_length_mmx:
-	test  al,64
-	jnz L_test_for_end_of_block
-
-	and  eax,15
-	psrlq mm0,mm1
-	movd ecx,mm0
-	and  ecx, [inflate_fast_mask+eax*4]
-	add  ecx,edx
-	mov  eax, [ebx+ecx*4]
-	jmp L_dolen_mmx
-
-ALIGN 4
-L_test_for_second_level_dist_mmx:
-	test  al,64
-	jnz L_invalid_distance_code
-
-	and  eax,15
-	psrlq mm0,mm1
-	movd ecx,mm0
-	and  ecx, [inflate_fast_mask+eax*4]
-	mov  eax, [esp+12]
-	add  ecx,ebx
-	mov  eax, [eax+ecx*4]
-	jmp  L_dodist_mmx
-
-ALIGN 4
-L_clip_window_mmx:
-
-	mov  ecx,eax
-	mov  eax, [esp+52]
-	neg  ecx
-	mov  esi, [esp+56]
-
-	cmp  eax,ebx
-	jb  L_invalid_distance_too_far
-
-	add  ecx,ebx
-	cmp  dword ptr [esp+48],0
-	jne  L_wrap_around_window_mmx
-
-	sub  eax,ecx
-	add  esi,eax
-
-	cmp  edx,ecx
-	jbe  L_do_copy1_mmx
-
-	sub  edx,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,ebx
-	jmp  L_do_copy1_mmx
-
-	cmp  edx,ecx
-	jbe  L_do_copy1_mmx
-
-	sub  edx,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,ebx
-	jmp  L_do_copy1_mmx
-
-L_wrap_around_window_mmx:
-
-	mov  eax, [esp+48]
-	cmp  ecx,eax
-	jbe  L_contiguous_in_window_mmx
-
-	add  esi, [esp+52]
-	add  esi,eax
-	sub  esi,ecx
-	sub  ecx,eax
-
-
-	cmp  edx,ecx
-	jbe  L_do_copy1_mmx
-
-	sub  edx,ecx
-	rep movsb
-	mov  esi, [esp+56]
-	mov  ecx, [esp+48]
-	cmp  edx,ecx
-	jbe  L_do_copy1_mmx
-
-	sub  edx,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,ebx
-	jmp  L_do_copy1_mmx
-
-L_contiguous_in_window_mmx:
-
-	add  esi,eax
-	sub  esi,ecx
-
-
-	cmp  edx,ecx
-	jbe  L_do_copy1_mmx
-
-	sub  edx,ecx
-	rep movsb
-	mov  esi,edi
-	sub  esi,ebx
-
-L_do_copy1_mmx:
-
-
-	mov  ecx,edx
-	rep movsb
-
-	mov  esi, [esp+44]
-	mov  ebx, [esp+8]
-	jmp  L_while_test_mmx
-; 1174 "inffast.S"
-L_invalid_distance_code:
-
-
-
-
-
-	mov  ecx, invalid_distance_code_msg
-	mov  edx,INFLATE_MODE_BAD
-	jmp  L_update_stream_state
-
-L_test_for_end_of_block:
-
-
-
-
-
-	test  al,32
-	jz  L_invalid_literal_length_code
-
-	mov  ecx,0
-	mov  edx,INFLATE_MODE_TYPE
-	jmp  L_update_stream_state
-
-L_invalid_literal_length_code:
-
-
-
-
-
-	mov  ecx, invalid_literal_length_code_msg
-	mov  edx,INFLATE_MODE_BAD
-	jmp  L_update_stream_state
-
-L_invalid_distance_too_far:
-
-
-
-	mov  esi, [esp+44]
-	mov  ecx, invalid_distance_too_far_msg
-	mov  edx,INFLATE_MODE_BAD
-	jmp  L_update_stream_state
-
-L_update_stream_state:
-
-	mov  eax, [esp+88]
-	test  ecx,ecx
-	jz  L_skip_msg
-	mov  [eax+24],ecx
-L_skip_msg:
-	mov  eax, [eax+28]
-	mov  [eax+mode_state],edx
-	jmp  L_break_loop
-
-ALIGN 4
-L_break_loop:
-; 1243 "inffast.S"
-	cmp  dword ptr [inflate_fast_use_mmx],2
-	jne  L_update_next_in
-
-
-
-	mov  ebx,ebp
-
-L_update_next_in:
-; 1266 "inffast.S"
-	mov  eax, [esp+88]
-	mov  ecx,ebx
-	mov  edx, [eax+28]
-	shr  ecx,3
-	sub  esi,ecx
-	shl  ecx,3
-	sub  ebx,ecx
-	mov  [eax+12],edi
-	mov  [edx+bits_state],ebx
-	mov  ecx,ebx
-
-	lea  ebx, [esp+28]
-	cmp  [esp+20],ebx
-	jne  L_buf_not_used
-
-	sub  esi,ebx
-	mov  ebx, [eax+0]
-	mov  [esp+20],ebx
-	add  esi,ebx
-	mov  ebx, [eax+4]
-	sub  ebx,11
-	add  [esp+20],ebx
-
-L_buf_not_used:
-	mov  [eax+0],esi
-
-	mov  ebx,1
-	shl  ebx,cl
-	dec  ebx
-
-
-
-
-
-	cmp  dword ptr [inflate_fast_use_mmx],2
-	jne  L_update_hold
-
-
-
-	psrlq mm0,mm1
-	movd ebp,mm0
-
-	emms
-
-L_update_hold:
-
-
-
-	and  ebp,ebx
-	mov  [edx+hold_state],ebp
-
-
-
-
-	mov  ebx, [esp+20]
-	cmp  ebx,esi
-	jbe  L_last_is_smaller
-
-	sub  ebx,esi
-	add  ebx,11
-	mov  [eax+4],ebx
-	jmp  L_fixup_out
-L_last_is_smaller:
-	sub  esi,ebx
-	neg  esi
-	add  esi,11
-	mov  [eax+4],esi
-
-
-
-
-L_fixup_out:
-
-	mov  ebx, [esp+16]
-	cmp  ebx,edi
-	jbe  L_end_is_smaller
-
-	sub  ebx,edi
-	add  ebx,257
-	mov  [eax+16],ebx
-	jmp  L_done
-L_end_is_smaller:
-	sub  edi,ebx
-	neg  edi
-	add  edi,257
-	mov  [eax+16],edi
-
-
-
-
-
-L_done:
-	add  esp,64
-	popfd
-	pop  ebx
-	pop  ebp
-	pop  esi
-	pop  edi
-	ret
-_inflate_fast endp
-
-_TEXT	ends
-end
diff --git a/contrib/masmx86/match686.asm b/contrib/masmx86/match686.asm
deleted file mode 100644
index 3b09212..0000000
--- a/contrib/masmx86/match686.asm
+++ /dev/null
@@ -1,479 +0,0 @@
-; match686.asm -- Asm portion of the optimized longest_match for 32 bits x86
-; Copyright (C) 1995-1996 Jean-loup Gailly, Brian Raiter and Gilles Vollant.
-; File written by Gilles Vollant, by converting match686.S from Brian Raiter
-; for MASM. This is as assembly version of longest_match
-;  from Jean-loup Gailly in deflate.c
-;
-;         http://www.zlib.net
-;         http://www.winimage.com/zLibDll
-;         http://www.muppetlabs.com/~breadbox/software/assembly.html
-;
-; For Visual C++ 4.x and higher and ML 6.x and higher
-;   ml.exe is distributed in
-;  http://www.microsoft.com/downloads/details.aspx?FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
-;
-; this file contain two implementation of longest_match
-;
-;  this longest_match was written by Brian raiter (1998), optimized for Pentium Pro
-;   (and the faster known version of match_init on modern Core 2 Duo and AMD Phenom)
-;
-;  for using an assembly version of longest_match, you need define ASMV in project
-;
-;    compile the asm file running
-;           ml /coff /Zi /c /Flmatch686.lst match686.asm
-;    and do not include match686.obj in your project
-;
-; note: contrib of zLib 1.2.3 and earlier contained both a deprecated version for
-;  Pentium (prior Pentium Pro) and this version for Pentium Pro and modern processor
-;  with autoselect (with cpu detection code)
-;  if you want support the old pentium optimization, you can still use these version
-;
-; this file is not optimized for old pentium, but it compatible with all x86 32 bits
-; processor (starting 80386)
-;
-;
-; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2
-
-;uInt longest_match(s, cur_match)
-;    deflate_state *s;
-;    IPos cur_match;                             /* current match */
-
-    NbStack         equ     76
-    cur_match       equ     dword ptr[esp+NbStack-0]
-    str_s           equ     dword ptr[esp+NbStack-4]
-; 5 dword on top (ret,ebp,esi,edi,ebx)
-    adrret          equ     dword ptr[esp+NbStack-8]
-    pushebp         equ     dword ptr[esp+NbStack-12]
-    pushedi         equ     dword ptr[esp+NbStack-16]
-    pushesi         equ     dword ptr[esp+NbStack-20]
-    pushebx         equ     dword ptr[esp+NbStack-24]
-
-    chain_length    equ     dword ptr [esp+NbStack-28]
-    limit           equ     dword ptr [esp+NbStack-32]
-    best_len        equ     dword ptr [esp+NbStack-36]
-    window          equ     dword ptr [esp+NbStack-40]
-    prev            equ     dword ptr [esp+NbStack-44]
-    scan_start      equ      word ptr [esp+NbStack-48]
-    wmask           equ     dword ptr [esp+NbStack-52]
-    match_start_ptr equ     dword ptr [esp+NbStack-56]
-    nice_match      equ     dword ptr [esp+NbStack-60]
-    scan            equ     dword ptr [esp+NbStack-64]
-
-    windowlen       equ     dword ptr [esp+NbStack-68]
-    match_start     equ     dword ptr [esp+NbStack-72]
-    strend          equ     dword ptr [esp+NbStack-76]
-    NbStackAdd      equ     (NbStack-24)
-
-    .386p
-
-    name    gvmatch
-    .MODEL  FLAT
-
-
-
-;  all the +zlib1222add offsets are due to the addition of fields
-;  in zlib in the deflate_state structure since the asm code was first written
-;  (if you compile with zlib 1.0.4 or older, use "zlib1222add equ (-4)").
-;  (if you compile with zlib between 1.0.5 and 1.2.2.1, use "zlib1222add equ 0").
-;  if you compile with zlib 1.2.2.2 or later , use "zlib1222add equ 8").
-
-    zlib1222add         equ     8
-
-;  Note : these value are good with a 8 bytes boundary pack structure
-    dep_chain_length    equ     74h+zlib1222add
-    dep_window          equ     30h+zlib1222add
-    dep_strstart        equ     64h+zlib1222add
-    dep_prev_length     equ     70h+zlib1222add
-    dep_nice_match      equ     88h+zlib1222add
-    dep_w_size          equ     24h+zlib1222add
-    dep_prev            equ     38h+zlib1222add
-    dep_w_mask          equ     2ch+zlib1222add
-    dep_good_match      equ     84h+zlib1222add
-    dep_match_start     equ     68h+zlib1222add
-    dep_lookahead       equ     6ch+zlib1222add
-
-
-_TEXT                   segment
-
-IFDEF NOUNDERLINE
-            public  longest_match
-            public  match_init
-ELSE
-            public  _longest_match
-            public  _match_init
-ENDIF
-
-    MAX_MATCH           equ     258
-    MIN_MATCH           equ     3
-    MIN_LOOKAHEAD       equ     (MAX_MATCH+MIN_MATCH+1)
-
-
-
-MAX_MATCH       equ     258
-MIN_MATCH       equ     3
-MIN_LOOKAHEAD   equ     (MAX_MATCH + MIN_MATCH + 1)
-MAX_MATCH_8_     equ     ((MAX_MATCH + 7) AND 0FFF0h)
-
-
-;;; stack frame offsets
-
-chainlenwmask   equ  esp + 0    ; high word: current chain len
-                    ; low word: s->wmask
-window      equ  esp + 4    ; local copy of s->window
-windowbestlen   equ  esp + 8    ; s->window + bestlen
-scanstart   equ  esp + 16   ; first two bytes of string
-scanend     equ  esp + 12   ; last two bytes of string
-scanalign   equ  esp + 20   ; dword-misalignment of string
-nicematch   equ  esp + 24   ; a good enough match size
-bestlen     equ  esp + 28   ; size of best match so far
-scan        equ  esp + 32   ; ptr to string wanting match
-
-LocalVarsSize   equ 36
-;   saved ebx   byte esp + 36
-;   saved edi   byte esp + 40
-;   saved esi   byte esp + 44
-;   saved ebp   byte esp + 48
-;   return address  byte esp + 52
-deflatestate    equ  esp + 56   ; the function arguments
-curmatch    equ  esp + 60
-
-;;; Offsets for fields in the deflate_state structure. These numbers
-;;; are calculated from the definition of deflate_state, with the
-;;; assumption that the compiler will dword-align the fields. (Thus,
-;;; changing the definition of deflate_state could easily cause this
-;;; program to crash horribly, without so much as a warning at
-;;; compile time. Sigh.)
-
-dsWSize     equ 36+zlib1222add
-dsWMask     equ 44+zlib1222add
-dsWindow    equ 48+zlib1222add
-dsPrev      equ 56+zlib1222add
-dsMatchLen  equ 88+zlib1222add
-dsPrevMatch equ 92+zlib1222add
-dsStrStart  equ 100+zlib1222add
-dsMatchStart    equ 104+zlib1222add
-dsLookahead equ 108+zlib1222add
-dsPrevLen   equ 112+zlib1222add
-dsMaxChainLen   equ 116+zlib1222add
-dsGoodMatch equ 132+zlib1222add
-dsNiceMatch equ 136+zlib1222add
-
-
-;;; match686.asm -- Pentium-Pro-optimized version of longest_match()
-;;; Written for zlib 1.1.2
-;;; Copyright (C) 1998 Brian Raiter <breadbox@muppetlabs.com>
-;;; You can look at http://www.muppetlabs.com/~breadbox/software/assembly.html
-;;;
-;;
-;;  This software is provided 'as-is', without any express or implied
-;;  warranty.  In no event will the authors be held liable for any damages
-;;  arising from the use of this software.
-;;
-;;  Permission is granted to anyone to use this software for any purpose,
-;;  including commercial applications, and to alter it and redistribute it
-;;  freely, subject to the following restrictions:
-;;
-;;  1. The origin of this software must not be misrepresented; you must not
-;;     claim that you wrote the original software. If you use this software
-;;     in a product, an acknowledgment in the product documentation would be
-;;     appreciated but is not required.
-;;  2. Altered source versions must be plainly marked as such, and must not be
-;;     misrepresented as being the original software
-;;  3. This notice may not be removed or altered from any source distribution.
-;;
-
-;GLOBAL _longest_match, _match_init
-
-
-;SECTION    .text
-
-;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
-
-;_longest_match:
-    IFDEF NOUNDERLINE
-    longest_match       proc near
-    ELSE
-    _longest_match      proc near
-    ENDIF
-.FPO (9, 4, 0, 0, 1, 0)
-
-;;; Save registers that the compiler may be using, and adjust esp to
-;;; make room for our stack frame.
-
-        push    ebp
-        push    edi
-        push    esi
-        push    ebx
-        sub esp, LocalVarsSize
-
-;;; Retrieve the function arguments. ecx will hold cur_match
-;;; throughout the entire function. edx will hold the pointer to the
-;;; deflate_state structure during the function's setup (before
-;;; entering the main loop.
-
-        mov edx, [deflatestate]
-        mov ecx, [curmatch]
-
-;;; uInt wmask = s->w_mask;
-;;; unsigned chain_length = s->max_chain_length;
-;;; if (s->prev_length >= s->good_match) {
-;;;     chain_length >>= 2;
-;;; }
-
-        mov eax, [edx + dsPrevLen]
-        mov ebx, [edx + dsGoodMatch]
-        cmp eax, ebx
-        mov eax, [edx + dsWMask]
-        mov ebx, [edx + dsMaxChainLen]
-        jl  LastMatchGood
-        shr ebx, 2
-LastMatchGood:
-
-;;; chainlen is decremented once beforehand so that the function can
-;;; use the sign flag instead of the zero flag for the exit test.
-;;; It is then shifted into the high word, to make room for the wmask
-;;; value, which it will always accompany.
-
-        dec ebx
-        shl ebx, 16
-        or  ebx, eax
-        mov [chainlenwmask], ebx
-
-;;; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
-
-        mov eax, [edx + dsNiceMatch]
-        mov ebx, [edx + dsLookahead]
-        cmp ebx, eax
-        jl  LookaheadLess
-        mov ebx, eax
-LookaheadLess:  mov [nicematch], ebx
-
-;;; register Bytef *scan = s->window + s->strstart;
-
-        mov esi, [edx + dsWindow]
-        mov [window], esi
-        mov ebp, [edx + dsStrStart]
-        lea edi, [esi + ebp]
-        mov [scan], edi
-
-;;; Determine how many bytes the scan ptr is off from being
-;;; dword-aligned.
-
-        mov eax, edi
-        neg eax
-        and eax, 3
-        mov [scanalign], eax
-
-;;; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
-;;;     s->strstart - (IPos)MAX_DIST(s) : NIL;
-
-        mov eax, [edx + dsWSize]
-        sub eax, MIN_LOOKAHEAD
-        sub ebp, eax
-        jg  LimitPositive
-        xor ebp, ebp
-LimitPositive:
-
-;;; int best_len = s->prev_length;
-
-        mov eax, [edx + dsPrevLen]
-        mov [bestlen], eax
-
-;;; Store the sum of s->window + best_len in esi locally, and in esi.
-
-        add esi, eax
-        mov [windowbestlen], esi
-
-;;; register ush scan_start = *(ushf*)scan;
-;;; register ush scan_end   = *(ushf*)(scan+best_len-1);
-;;; Posf *prev = s->prev;
-
-        movzx   ebx, word ptr [edi]
-        mov [scanstart], ebx
-        movzx   ebx, word ptr [edi + eax - 1]
-        mov [scanend], ebx
-        mov edi, [edx + dsPrev]
-
-;;; Jump into the main loop.
-
-        mov edx, [chainlenwmask]
-        jmp short LoopEntry
-
-align 4
-
-;;; do {
-;;;     match = s->window + cur_match;
-;;;     if (*(ushf*)(match+best_len-1) != scan_end ||
-;;;         *(ushf*)match != scan_start) continue;
-;;;     [...]
-;;; } while ((cur_match = prev[cur_match & wmask]) > limit
-;;;          && --chain_length != 0);
-;;;
-;;; Here is the inner loop of the function. The function will spend the
-;;; majority of its time in this loop, and majority of that time will
-;;; be spent in the first ten instructions.
-;;;
-;;; Within this loop:
-;;; ebx = scanend
-;;; ecx = curmatch
-;;; edx = chainlenwmask - i.e., ((chainlen << 16) | wmask)
-;;; esi = windowbestlen - i.e., (window + bestlen)
-;;; edi = prev
-;;; ebp = limit
-
-LookupLoop:
-        and ecx, edx
-        movzx   ecx, word ptr [edi + ecx*2]
-        cmp ecx, ebp
-        jbe LeaveNow
-        sub edx, 00010000h
-        js  LeaveNow
-LoopEntry:  movzx   eax, word ptr [esi + ecx - 1]
-        cmp eax, ebx
-        jnz LookupLoop
-        mov eax, [window]
-        movzx   eax, word ptr [eax + ecx]
-        cmp eax, [scanstart]
-        jnz LookupLoop
-
-;;; Store the current value of chainlen.
-
-        mov [chainlenwmask], edx
-
-;;; Point edi to the string under scrutiny, and esi to the string we
-;;; are hoping to match it up with. In actuality, esi and edi are
-;;; both pointed (MAX_MATCH_8 - scanalign) bytes ahead, and edx is
-;;; initialized to -(MAX_MATCH_8 - scanalign).
-
-        mov esi, [window]
-        mov edi, [scan]
-        add esi, ecx
-        mov eax, [scanalign]
-        mov edx, 0fffffef8h; -(MAX_MATCH_8)
-        lea edi, [edi + eax + 0108h] ;MAX_MATCH_8]
-        lea esi, [esi + eax + 0108h] ;MAX_MATCH_8]
-
-;;; Test the strings for equality, 8 bytes at a time. At the end,
-;;; adjust edx so that it is offset to the exact byte that mismatched.
-;;;
-;;; We already know at this point that the first three bytes of the
-;;; strings match each other, and they can be safely passed over before
-;;; starting the compare loop. So what this code does is skip over 0-3
-;;; bytes, as much as necessary in order to dword-align the edi
-;;; pointer. (esi will still be misaligned three times out of four.)
-;;;
-;;; It should be confessed that this loop usually does not represent
-;;; much of the total running time. Replacing it with a more
-;;; straightforward "rep cmpsb" would not drastically degrade
-;;; performance.
-
-LoopCmps:
-        mov eax, [esi + edx]
-        xor eax, [edi + edx]
-        jnz LeaveLoopCmps
-        mov eax, [esi + edx + 4]
-        xor eax, [edi + edx + 4]
-        jnz LeaveLoopCmps4
-        add edx, 8
-        jnz LoopCmps
-        jmp short LenMaximum
-LeaveLoopCmps4: add edx, 4
-LeaveLoopCmps:  test    eax, 0000FFFFh
-        jnz LenLower
-        add edx,  2
-        shr eax, 16
-LenLower:   sub al, 1
-        adc edx, 0
-
-;;; Calculate the length of the match. If it is longer than MAX_MATCH,
-;;; then automatically accept it as the best possible match and leave.
-
-        lea eax, [edi + edx]
-        mov edi, [scan]
-        sub eax, edi
-        cmp eax, MAX_MATCH
-        jge LenMaximum
-
-;;; If the length of the match is not longer than the best match we
-;;; have so far, then forget it and return to the lookup loop.
-
-        mov edx, [deflatestate]
-        mov ebx, [bestlen]
-        cmp eax, ebx
-        jg  LongerMatch
-        mov esi, [windowbestlen]
-        mov edi, [edx + dsPrev]
-        mov ebx, [scanend]
-        mov edx, [chainlenwmask]
-        jmp LookupLoop
-
-;;;         s->match_start = cur_match;
-;;;         best_len = len;
-;;;         if (len >= nice_match) break;
-;;;         scan_end = *(ushf*)(scan+best_len-1);
-
-LongerMatch:    mov ebx, [nicematch]
-        mov [bestlen], eax
-        mov [edx + dsMatchStart], ecx
-        cmp eax, ebx
-        jge LeaveNow
-        mov esi, [window]
-        add esi, eax
-        mov [windowbestlen], esi
-        movzx   ebx, word ptr [edi + eax - 1]
-        mov edi, [edx + dsPrev]
-        mov [scanend], ebx
-        mov edx, [chainlenwmask]
-        jmp LookupLoop
-
-;;; Accept the current string, with the maximum possible length.
-
-LenMaximum: mov edx, [deflatestate]
-        mov dword ptr [bestlen], MAX_MATCH
-        mov [edx + dsMatchStart], ecx
-
-;;; if ((uInt)best_len <= s->lookahead) return (uInt)best_len;
-;;; return s->lookahead;
-
-LeaveNow:
-        mov edx, [deflatestate]
-        mov ebx, [bestlen]
-        mov eax, [edx + dsLookahead]
-        cmp ebx, eax
-        jg  LookaheadRet
-        mov eax, ebx
-LookaheadRet:
-
-;;; Restore the stack and return from whence we came.
-
-        add esp, LocalVarsSize
-        pop ebx
-        pop esi
-        pop edi
-        pop ebp
-
-        ret
-; please don't remove this string !
-; Your can freely use match686 in any free or commercial app if you don't remove the string in the binary!
-    db     0dh,0ah,"asm686 with masm, optimised assembly code from Brian Raiter, written 1998",0dh,0ah
-
-
-    IFDEF NOUNDERLINE
-    longest_match       endp
-    ELSE
-    _longest_match      endp
-    ENDIF
-
-    IFDEF NOUNDERLINE
-    match_init      proc near
-                    ret
-    match_init      endp
-    ELSE
-    _match_init     proc near
-                    ret
-    _match_init     endp
-    ENDIF
-
-
-_TEXT   ends
-end
diff --git a/contrib/masmx86/readme.txt b/contrib/masmx86/readme.txt
deleted file mode 100644
index 3271f72..0000000
--- a/contrib/masmx86/readme.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-
-Summary
--------
-This directory contains ASM implementations of the functions
-longest_match() and inflate_fast().
-
-
-Use instructions
-----------------
-Assemble using MASM, and copy the object files into the zlib source
-directory, then run the appropriate makefile, as suggested below.  You can
-donwload MASM from here:
-
-    http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=7a1c9da0-0510-44a2-b042-7ef370530c64
-
-You can also get objects files here:
-
-    http://www.winimage.com/zLibDll/zlib124_masm_obj.zip
-
-Build instructions
-------------------
-* With Microsoft C and MASM:
-nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj"
-
-* With Borland C and TASM:
-make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="match686.obj inffas32.obj" OBJPA="+match686c.obj+match686.obj+inffas32.obj"
-
diff --git a/win32/Makefile.bor b/win32/Makefile.bor
index d152bbb..4495353 100644
--- a/win32/Makefile.bor
+++ b/win32/Makefile.bor
@@ -3,7 +3,6 @@
 #
 # Usage:
 #  make -f win32/Makefile.bor
-#  make -f win32/Makefile.bor LOCAL_ZLIB=-DASMV OBJA=match.obj OBJPA=+match.obj
 
 # ------------ Borland C++ ------------
 
diff --git a/win32/Makefile.gcc b/win32/Makefile.gcc
index 305be50..081e391 100644
--- a/win32/Makefile.gcc
+++ b/win32/Makefile.gcc
@@ -11,10 +11,6 @@
 #
 #   make -fwin32/Makefile.gcc;  make test testdll -fwin32/Makefile.gcc
 #
-# To use the asm code, type:
-#   cp contrib/asm?86/match.S ./match.S
-#   make LOC=-DASMV OBJA=match.o -fwin32/Makefile.gcc
-#
 # To install libz.a, zconf.h and zlib.h in the system directories, type:
 #
 #   make install -fwin32/Makefile.gcc
@@ -38,7 +34,6 @@
 #
 SHARED_MODE=0
 
-#LOC = -DASMV
 #LOC = -DZLIB_DEBUG -g
 
 PREFIX =
diff --git a/win32/Makefile.msc b/win32/Makefile.msc
index 6831882..9c65153 100644
--- a/win32/Makefile.msc
+++ b/win32/Makefile.msc
@@ -4,10 +4,6 @@
 # Usage:
 #   nmake -f win32/Makefile.msc                          (standard build)
 #   nmake -f win32/Makefile.msc LOC=-DFOO                (nonstandard build)
-#   nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" \
-#         OBJA="inffas32.obj match686.obj"               (use ASM code, x86)
-#   nmake -f win32/Makefile.msc AS=ml64 LOC="-DASMV -DASMINF -I." \
-#         OBJA="inffasx64.obj gvmat64.obj inffas8664.obj"  (use ASM code, x64)
 
 # The toplevel directory of the source tree.
 #