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-rw-r--r--compat/zlib/contrib/masmx86/inffas32.asm2166
1 files changed, 1083 insertions, 1083 deletions
diff --git a/compat/zlib/contrib/masmx86/inffas32.asm b/compat/zlib/contrib/masmx86/inffas32.asm
index 4a20512..14f9d35 100644
--- a/compat/zlib/contrib/masmx86/inffas32.asm
+++ b/compat/zlib/contrib/masmx86/inffas32.asm
@@ -1,1083 +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
+;/* 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,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
+
+_TEXT ends
+end
generated by cgit v0.12 at 2025-02-26 17:50:04 (GMT)