diff options
Diffstat (limited to 'zlib/contrib/masmx86')
| -rw-r--r-- | zlib/contrib/masmx86/bld_ml32.bat | 2 | ||||
| -rw-r--r-- | zlib/contrib/masmx86/gvmat32.asm | 972 | ||||
| -rw-r--r-- | zlib/contrib/masmx86/gvmat32.obj | bin | 0 -> 10241 bytes | |||
| -rw-r--r-- | zlib/contrib/masmx86/gvmat32c.c | 62 | ||||
| -rw-r--r-- | zlib/contrib/masmx86/inffas32.asm | 1083 | ||||
| -rw-r--r-- | zlib/contrib/masmx86/inffas32.obj | bin | 0 -> 14893 bytes | |||
| -rwxr-xr-x | zlib/contrib/masmx86/mkasm.bat | 3 | ||||
| -rw-r--r-- | zlib/contrib/masmx86/readme.txt | 21 |
8 files changed, 2143 insertions, 0 deletions
diff --git a/zlib/contrib/masmx86/bld_ml32.bat b/zlib/contrib/masmx86/bld_ml32.bat new file mode 100644 index 000000000..99144d07a --- /dev/null +++ b/zlib/contrib/masmx86/bld_ml32.bat @@ -0,0 +1,2 @@ +ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
+ml /coff /Zi /c /Flinffas32.lst inffas32.asm
diff --git a/zlib/contrib/masmx86/gvmat32.asm b/zlib/contrib/masmx86/gvmat32.asm new file mode 100644 index 000000000..874bb2d48 --- /dev/null +++ b/zlib/contrib/masmx86/gvmat32.asm @@ -0,0 +1,972 @@ +; gvmat32.asm -- Asm portion of the optimized longest_match for 32 bits x86
+; Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
+; File written by Gilles Vollant, by modifiying the 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 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/
+;
+; this file contain two implementation of longest_match
+;
+; longest_match_7fff : written 1996 by Gilles Vollant optimized for
+; first Pentium. Assume s->w_mask == 0x7fff
+; longest_match_686 : written by Brian raiter (1998), optimized for Pentium Pro
+;
+; for using an seembly version of longest_match, you need define ASMV in project
+; There is two way in using gvmat32.asm
+;
+; A) Suggested method
+; if you want include both longest_match_7fff and longest_match_686
+; compile the asm file running
+; ml /coff /Zi /Flgvmat32.lst /c gvmat32.asm
+; and include gvmat32c.c in your project
+; if you have an old cpu (386,486 or first Pentium) and s->w_mask==0x7fff,
+; longest_match_7fff will be used
+; if you have a more modern CPU (Pentium Pro, II and higher)
+; longest_match_686 will be used
+; on old cpu with s->w_mask!=0x7fff, longest_match_686 will be used,
+; but this is not a sitation you'll find often
+;
+; B) Alternative
+; if you are not interresed in old cpu performance and want the smaller
+; binaries possible
+;
+; compile the asm file running
+; ml /coff /Zi /c /Flgvmat32.lst /DNOOLDPENTIUMCODE gvmat32.asm
+; and do not include gvmat32c.c in your project (ou define also
+; NOOLDPENTIUMCODE)
+;
+; note : as I known, longest_match_686 is very faster than longest_match_7fff
+; on pentium Pro/II/III, faster (but less) in P4, but it seem
+; longest_match_7fff can be faster (very very litte) on AMD Athlon64/K8
+;
+; see below : zlib1222add must be adjuster if you use a zlib version < 1.2.2.2
+
+;uInt longest_match_7fff(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
+ IFDEF NOOLDPENTIUMCODE
+ public longest_match
+ public match_init
+ ELSE
+ public longest_match_7fff
+ public cpudetect32
+ public longest_match_686
+ ENDIF
+ELSE
+ IFDEF NOOLDPENTIUMCODE
+ public _longest_match
+ public _match_init
+ ELSE
+ public _longest_match_7fff
+ public _cpudetect32
+ public _longest_match_686
+ ENDIF
+ENDIF
+
+ MAX_MATCH equ 258
+ MIN_MATCH equ 3
+ MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
+
+
+
+IFNDEF NOOLDPENTIUMCODE
+IFDEF NOUNDERLINE
+longest_match_7fff proc near
+ELSE
+_longest_match_7fff proc near
+ENDIF
+
+ mov edx,[esp+4]
+
+
+
+ push ebp
+ push edi
+ push esi
+ push ebx
+
+ sub esp,NbStackAdd
+
+; initialize or check the variables used in match.asm.
+ mov ebp,edx
+
+; chain_length = s->max_chain_length
+; if (prev_length>=good_match) chain_length >>= 2
+ mov edx,[ebp+dep_chain_length]
+ mov ebx,[ebp+dep_prev_length]
+ cmp [ebp+dep_good_match],ebx
+ ja noshr
+ shr edx,2
+noshr:
+; we increment chain_length because in the asm, the --chain_lenght is in the beginning of the loop
+ inc edx
+ mov edi,[ebp+dep_nice_match]
+ mov chain_length,edx
+ mov eax,[ebp+dep_lookahead]
+ cmp eax,edi
+; if ((uInt)nice_match > s->lookahead) nice_match = s->lookahead;
+ jae nolookaheadnicematch
+ mov edi,eax
+nolookaheadnicematch:
+; best_len = s->prev_length
+ mov best_len,ebx
+
+; window = s->window
+ mov esi,[ebp+dep_window]
+ mov ecx,[ebp+dep_strstart]
+ mov window,esi
+
+ mov nice_match,edi
+; scan = window + strstart
+ add esi,ecx
+ mov scan,esi
+; dx = *window
+ mov dx,word ptr [esi]
+; bx = *(window+best_len-1)
+ mov bx,word ptr [esi+ebx-1]
+ add esi,MAX_MATCH-1
+; scan_start = *scan
+ mov scan_start,dx
+; strend = scan + MAX_MATCH-1
+ mov strend,esi
+; bx = scan_end = *(window+best_len-1)
+
+; IPos limit = s->strstart > (IPos)MAX_DIST(s) ?
+; s->strstart - (IPos)MAX_DIST(s) : NIL;
+
+ mov esi,[ebp+dep_w_size]
+ sub esi,MIN_LOOKAHEAD
+; here esi = MAX_DIST(s)
+ sub ecx,esi
+ ja nodist
+ xor ecx,ecx
+nodist:
+ mov limit,ecx
+
+; prev = s->prev
+ mov edx,[ebp+dep_prev]
+ mov prev,edx
+
+;
+ mov edx,dword ptr [ebp+dep_match_start]
+ mov bp,scan_start
+ mov eax,cur_match
+ mov match_start,edx
+
+ mov edx,window
+ mov edi,edx
+ add edi,best_len
+ mov esi,prev
+ dec edi
+; windowlen = window + best_len -1
+ mov windowlen,edi
+
+ jmp beginloop2
+ align 4
+
+; here, in the loop
+; eax = ax = cur_match
+; ecx = limit
+; bx = scan_end
+; bp = scan_start
+; edi = windowlen (window + best_len -1)
+; esi = prev
+
+
+;// here; chain_length <=16
+normalbeg0add16:
+ add chain_length,16
+ jz exitloop
+normalbeg0:
+ cmp word ptr[edi+eax],bx
+ je normalbeg2noroll
+rcontlabnoroll:
+; cur_match = prev[cur_match & wmask]
+ and eax,7fffh
+ mov ax,word ptr[esi+eax*2]
+; if cur_match > limit, go to exitloop
+ cmp ecx,eax
+ jnb exitloop
+; if --chain_length != 0, go to exitloop
+ dec chain_length
+ jnz normalbeg0
+ jmp exitloop
+
+normalbeg2noroll:
+; if (scan_start==*(cur_match+window)) goto normalbeg2
+ cmp bp,word ptr[edx+eax]
+ jne rcontlabnoroll
+ jmp normalbeg2
+
+contloop3:
+ mov edi,windowlen
+
+; cur_match = prev[cur_match & wmask]
+ and eax,7fffh
+ mov ax,word ptr[esi+eax*2]
+; if cur_match > limit, go to exitloop
+ cmp ecx,eax
+jnbexitloopshort1:
+ jnb exitloop
+; if --chain_length != 0, go to exitloop
+
+
+; begin the main loop
+beginloop2:
+ sub chain_length,16+1
+; if chain_length <=16, don't use the unrolled loop
+ jna normalbeg0add16
+
+do16:
+ cmp word ptr[edi+eax],bx
+ je normalbeg2dc0
+
+maccn MACRO lab
+ and eax,7fffh
+ mov ax,word ptr[esi+eax*2]
+ cmp ecx,eax
+ jnb exitloop
+ cmp word ptr[edi+eax],bx
+ je lab
+ ENDM
+
+rcontloop0:
+ maccn normalbeg2dc1
+
+rcontloop1:
+ maccn normalbeg2dc2
+
+rcontloop2:
+ maccn normalbeg2dc3
+
+rcontloop3:
+ maccn normalbeg2dc4
+
+rcontloop4:
+ maccn normalbeg2dc5
+
+rcontloop5:
+ maccn normalbeg2dc6
+
+rcontloop6:
+ maccn normalbeg2dc7
+
+rcontloop7:
+ maccn normalbeg2dc8
+
+rcontloop8:
+ maccn normalbeg2dc9
+
+rcontloop9:
+ maccn normalbeg2dc10
+
+rcontloop10:
+ maccn short normalbeg2dc11
+
+rcontloop11:
+ maccn short normalbeg2dc12
+
+rcontloop12:
+ maccn short normalbeg2dc13
+
+rcontloop13:
+ maccn short normalbeg2dc14
+
+rcontloop14:
+ maccn short normalbeg2dc15
+
+rcontloop15:
+ and eax,7fffh
+ mov ax,word ptr[esi+eax*2]
+ cmp ecx,eax
+ jnb exitloop
+
+ sub chain_length,16
+ ja do16
+ jmp normalbeg0add16
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+normbeg MACRO rcontlab,valsub
+; if we are here, we know that *(match+best_len-1) == scan_end
+ cmp bp,word ptr[edx+eax]
+; if (match != scan_start) goto rcontlab
+ jne rcontlab
+; calculate the good chain_length, and we'll compare scan and match string
+ add chain_length,16-valsub
+ jmp iseq
+ ENDM
+
+
+normalbeg2dc11:
+ normbeg rcontloop11,11
+
+normalbeg2dc12:
+ normbeg short rcontloop12,12
+
+normalbeg2dc13:
+ normbeg short rcontloop13,13
+
+normalbeg2dc14:
+ normbeg short rcontloop14,14
+
+normalbeg2dc15:
+ normbeg short rcontloop15,15
+
+normalbeg2dc10:
+ normbeg rcontloop10,10
+
+normalbeg2dc9:
+ normbeg rcontloop9,9
+
+normalbeg2dc8:
+ normbeg rcontloop8,8
+
+normalbeg2dc7:
+ normbeg rcontloop7,7
+
+normalbeg2dc6:
+ normbeg rcontloop6,6
+
+normalbeg2dc5:
+ normbeg rcontloop5,5
+
+normalbeg2dc4:
+ normbeg rcontloop4,4
+
+normalbeg2dc3:
+ normbeg rcontloop3,3
+
+normalbeg2dc2:
+ normbeg rcontloop2,2
+
+normalbeg2dc1:
+ normbeg rcontloop1,1
+
+normalbeg2dc0:
+ normbeg rcontloop0,0
+
+
+; we go in normalbeg2 because *(ushf*)(match+best_len-1) == scan_end
+
+normalbeg2:
+ mov edi,window
+
+ cmp bp,word ptr[edi+eax]
+ jne contloop3 ; if *(ushf*)match != scan_start, continue
+
+iseq:
+; if we are here, we know that *(match+best_len-1) == scan_end
+; and (match == scan_start)
+
+ mov edi,edx
+ mov esi,scan ; esi = scan
+ add edi,eax ; edi = window + cur_match = match
+
+ mov edx,[esi+3] ; compare manually dword at match+3
+ xor edx,[edi+3] ; and scan +3
+
+ jz begincompare ; if equal, go to long compare
+
+; we will determine the unmatch byte and calculate len (in esi)
+ or dl,dl
+ je eq1rr
+ mov esi,3
+ jmp trfinval
+eq1rr:
+ or dx,dx
+ je eq1
+
+ mov esi,4
+ jmp trfinval
+eq1:
+ and edx,0ffffffh
+ jz eq11
+ mov esi,5
+ jmp trfinval
+eq11:
+ mov esi,6
+ jmp trfinval
+
+begincompare:
+ ; here we now scan and match begin same
+ add edi,6
+ add esi,6
+ mov ecx,(MAX_MATCH-(2+4))/4 ; scan for at most MAX_MATCH bytes
+ repe cmpsd ; loop until mismatch
+
+ je trfin ; go to trfin if not unmatch
+; we determine the unmatch byte
+ sub esi,4
+ mov edx,[edi-4]
+ xor edx,[esi]
+
+ or dl,dl
+ jnz trfin
+ inc esi
+
+ or dx,dx
+ jnz trfin
+ inc esi
+
+ and edx,0ffffffh
+ jnz trfin
+ inc esi
+
+trfin:
+ sub esi,scan ; esi = len
+trfinval:
+; here we have finised compare, and esi contain len of equal string
+ cmp esi,best_len ; if len > best_len, go newbestlen
+ ja short newbestlen
+; now we restore edx, ecx and esi, for the big loop
+ mov esi,prev
+ mov ecx,limit
+ mov edx,window
+ jmp contloop3
+
+newbestlen:
+ mov best_len,esi ; len become best_len
+
+ mov match_start,eax ; save new position as match_start
+ cmp esi,nice_match ; if best_len >= nice_match, exit
+ jae exitloop
+ mov ecx,scan
+ mov edx,window ; restore edx=window
+ add ecx,esi
+ add esi,edx
+
+ dec esi
+ mov windowlen,esi ; windowlen = window + best_len-1
+ mov bx,[ecx-1] ; bx = *(scan+best_len-1) = scan_end
+
+; now we restore ecx and esi, for the big loop :
+ mov esi,prev
+ mov ecx,limit
+ jmp contloop3
+
+exitloop:
+; exit : s->match_start=match_start
+ mov ebx,match_start
+ mov ebp,str_s
+ mov ecx,best_len
+ mov dword ptr [ebp+dep_match_start],ebx
+ mov eax,dword ptr [ebp+dep_lookahead]
+ cmp ecx,eax
+ ja minexlo
+ mov eax,ecx
+minexlo:
+; return min(best_len,s->lookahead)
+
+; restore stack and register ebx,esi,edi,ebp
+ add esp,NbStackAdd
+
+ pop ebx
+ pop esi
+ pop edi
+ pop ebp
+ ret
+InfoAuthor:
+; please don't remove this string !
+; Your are free use gvmat32 in any fre or commercial apps if you don't remove the string in the binary!
+ db 0dh,0ah,"GVMat32 optimised assembly code written 1996-98 by Gilles Vollant",0dh,0ah
+
+
+
+IFDEF NOUNDERLINE
+longest_match_7fff endp
+ELSE
+_longest_match_7fff endp
+ENDIF
+
+
+IFDEF NOUNDERLINE
+cpudetect32 proc near
+ELSE
+_cpudetect32 proc near
+ENDIF
+
+ push ebx
+
+ pushfd ; push original EFLAGS
+ pop eax ; get original EFLAGS
+ mov ecx, eax ; save original EFLAGS
+ xor eax, 40000h ; flip AC bit in EFLAGS
+ push eax ; save new EFLAGS value on stack
+ popfd ; replace current EFLAGS value
+ pushfd ; get new EFLAGS
+ pop eax ; store new EFLAGS in EAX
+ xor eax, ecx ; can’t toggle AC bit, processor=80386
+ jz end_cpu_is_386 ; jump if 80386 processor
+ push ecx
+ popfd ; restore AC bit in EFLAGS first
+
+ pushfd
+ pushfd
+ pop ecx
+
+ mov eax, ecx ; get original EFLAGS
+ xor eax, 200000h ; flip ID bit in EFLAGS
+ push eax ; save new EFLAGS value on stack
+ popfd ; replace current EFLAGS value
+ pushfd ; get new EFLAGS
+ pop eax ; store new EFLAGS in EAX
+ popfd ; restore original EFLAGS
+ xor eax, ecx ; can’t toggle ID bit,
+ je is_old_486 ; processor=old
+
+ mov eax,1
+ db 0fh,0a2h ;CPUID
+
+exitcpudetect:
+ pop ebx
+ ret
+
+end_cpu_is_386:
+ mov eax,0300h
+ jmp exitcpudetect
+
+is_old_486:
+ mov eax,0400h
+ jmp exitcpudetect
+
+IFDEF NOUNDERLINE
+cpudetect32 endp
+ELSE
+_cpudetect32 endp
+ENDIF
+ENDIF
+
+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
+
+
+;;; match.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 is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License.
+
+;GLOBAL _longest_match, _match_init
+
+
+;SECTION .text
+
+;;; uInt longest_match(deflate_state *deflatestate, IPos curmatch)
+
+;_longest_match:
+IFDEF NOOLDPENTIUMCODE
+ IFDEF NOUNDERLINE
+ longest_match proc near
+ ELSE
+ _longest_match proc near
+ ENDIF
+ELSE
+ IFDEF NOUNDERLINE
+ longest_match_686 proc near
+ ELSE
+ _longest_match_686 proc near
+ ENDIF
+ENDIF
+
+;;; 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 gvmat32 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 NOOLDPENTIUMCODE
+ 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
+ELSE
+ IFDEF NOUNDERLINE
+ longest_match_686 endp
+ ELSE
+ _longest_match_686 endp
+ ENDIF
+ENDIF
+
+_TEXT ends
+end
diff --git a/zlib/contrib/masmx86/gvmat32.obj b/zlib/contrib/masmx86/gvmat32.obj Binary files differnew file mode 100644 index 000000000..ebb326238 --- /dev/null +++ b/zlib/contrib/masmx86/gvmat32.obj diff --git a/zlib/contrib/masmx86/gvmat32c.c b/zlib/contrib/masmx86/gvmat32c.c new file mode 100644 index 000000000..7ad2b2794 --- /dev/null +++ b/zlib/contrib/masmx86/gvmat32c.c @@ -0,0 +1,62 @@ +/* gvmat32.c -- C portion of the optimized longest_match for 32 bits x86
+ * Copyright (C) 1995-1996 Jean-loup Gailly and Gilles Vollant.
+ * File written by Gilles Vollant, by modifiying the longest_match
+ * from Jean-loup Gailly in deflate.c
+ * it prepare all parameters and call the assembly longest_match_gvasm
+ * longest_match execute standard C code is wmask != 0x7fff
+ * (assembly code is faster with a fixed wmask)
+ *
+ * Read comment at beginning of gvmat32.asm for more information
+ */
+
+#if defined(ASMV) && (!defined(NOOLDPENTIUMCODE))
+#include "deflate.h"
+
+/* if your C compiler don't add underline before function name,
+ define ADD_UNDERLINE_ASMFUNC */
+#ifdef ADD_UNDERLINE_ASMFUNC
+#define longest_match_7fff _longest_match_7fff
+#define longest_match_686 _longest_match_686
+#define cpudetect32 _cpudetect32
+#endif
+
+
+unsigned long cpudetect32();
+
+uInt longest_match_c(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+
+uInt longest_match_7fff(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+uInt longest_match_686(
+ deflate_state *s,
+ IPos cur_match); /* current match */
+
+
+static uInt iIsPPro=2;
+
+void match_init ()
+{
+ iIsPPro = (((cpudetect32()/0x100)&0xf)>=6) ? 1 : 0;
+}
+
+uInt longest_match(
+ deflate_state *s,
+ IPos cur_match) /* current match */
+{
+ if (iIsPPro!=0)
+ return longest_match_686(s,cur_match);
+
+ if (s->w_mask != 0x7fff)
+ return longest_match_686(s,cur_match);
+
+ /* now ((s->w_mask == 0x7fff) && (iIsPPro==0)) */
+ return longest_match_7fff(s,cur_match);
+}
+
+
+#endif /* defined(ASMV) && (!defined(NOOLDPENTIUMCODE)) */
diff --git a/zlib/contrib/masmx86/inffas32.asm b/zlib/contrib/masmx86/inffas32.asm new file mode 100644 index 000000000..4a205125e --- /dev/null +++ b/zlib/contrib/masmx86/inffas32.asm @@ -0,0 +1,1083 @@ +;/* 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
+PUBLIC _inflate_fast
+
+ALIGN 4
+_inflate_fast:
+ jmp inflate_fast_entry
+
+
+
+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_entry:
+ 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,[esp+0]
+ movq mm3,mm4
+ movd mm5,[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,[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,[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
+
+_TEXT ends
+end
diff --git a/zlib/contrib/masmx86/inffas32.obj b/zlib/contrib/masmx86/inffas32.obj Binary files differnew file mode 100644 index 000000000..bd6664d11 --- /dev/null +++ b/zlib/contrib/masmx86/inffas32.obj diff --git a/zlib/contrib/masmx86/mkasm.bat b/zlib/contrib/masmx86/mkasm.bat new file mode 100755 index 000000000..70a51f837 --- /dev/null +++ b/zlib/contrib/masmx86/mkasm.bat @@ -0,0 +1,3 @@ +cl /DASMV /I..\.. /O2 /c gvmat32c.c
+ml /coff /Zi /c /Flgvmat32.lst gvmat32.asm
+ml /coff /Zi /c /Flinffas32.lst inffas32.asm
diff --git a/zlib/contrib/masmx86/readme.txt b/zlib/contrib/masmx86/readme.txt new file mode 100644 index 000000000..7b57167b7 --- /dev/null +++ b/zlib/contrib/masmx86/readme.txt @@ -0,0 +1,21 @@ + +Summary +------- +This directory contains ASM implementations of the functions +longest_match() and inflate_fast(). + + +Use instructions +---------------- +Copy these files into the zlib source directory, then run the +appropriate makefile, as suggested below. + + +Build instructions +------------------ +* With Microsoft C and MASM: +nmake -f win32/Makefile.msc LOC="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj" + +* With Borland C and TASM: +make -f win32/Makefile.bor LOCAL_ZLIB="-DASMV -DASMINF" OBJA="gvmat32c.obj gvmat32.obj inffas32.obj" OBJPA="+gvmat32c.obj+gvmat32.obj+inffas32.obj" + |