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authorAki <please@ignore.pl>2024-03-02 22:57:02 +0100
committerAki <please@ignore.pl>2024-03-03 00:59:45 +0100
commitca18c5b1b5004ffa88b6b3b85cd038d1217c09c6 (patch)
tree1ba5a8734c96f892322cd65af7cf33041ba4cb68 /contrib/zlib/contrib/inflate86/inffas86.c
parente70158ea57302e2fa2d588b67fc8dc18265192eb (diff)
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zlib sources removed from this tree
This, for whatever reason, breaks std::fs exception handling. All remaining external projects will be moved to use this approach soon. This is to prepare it for more new libraries which would otherwise make the tree grow even further.
Diffstat (limited to 'contrib/zlib/contrib/inflate86/inffas86.c')
-rw-r--r--contrib/zlib/contrib/inflate86/inffas86.c1157
1 files changed, 0 insertions, 1157 deletions
diff --git a/contrib/zlib/contrib/inflate86/inffas86.c b/contrib/zlib/contrib/inflate86/inffas86.c
deleted file mode 100644
index 7292f67..0000000
--- a/contrib/zlib/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;
-}
-