diff options
Diffstat (limited to 'media/libjpeg/simd/jdcolext-sse2.asm')
-rw-r--r-- | media/libjpeg/simd/jdcolext-sse2.asm | 459 |
1 files changed, 0 insertions, 459 deletions
diff --git a/media/libjpeg/simd/jdcolext-sse2.asm b/media/libjpeg/simd/jdcolext-sse2.asm deleted file mode 100644 index 682aef35fc..0000000000 --- a/media/libjpeg/simd/jdcolext-sse2.asm +++ /dev/null @@ -1,459 +0,0 @@ -; -; jdcolext.asm - colorspace conversion (SSE2) -; -; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB -; Copyright (C) 2012, D. R. Commander. -; -; Based on the x86 SIMD extension for IJG JPEG library -; Copyright (C) 1999-2006, MIYASAKA Masaru. -; For conditions of distribution and use, see copyright notice in jsimdext.inc -; -; This file should be assembled with NASM (Netwide Assembler), -; can *not* be assembled with Microsoft's MASM or any compatible -; assembler (including Borland's Turbo Assembler). -; NASM is available from http://nasm.sourceforge.net/ or -; http://sourceforge.net/project/showfiles.php?group_id=6208 -; -; [TAB8] - -%include "jcolsamp.inc" - -; -------------------------------------------------------------------------- -; -; Convert some rows of samples to the output colorspace. -; -; GLOBAL(void) -; jsimd_ycc_rgb_convert_sse2 (JDIMENSION out_width, -; JSAMPIMAGE input_buf, JDIMENSION input_row, -; JSAMPARRAY output_buf, int num_rows) -; - -%define out_width(b) (b)+8 ; JDIMENSION out_width -%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf -%define input_row(b) (b)+16 ; JDIMENSION input_row -%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf -%define num_rows(b) (b)+24 ; int num_rows - -%define original_ebp ebp+0 -%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] -%define WK_NUM 2 -%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr - - align 16 - global EXTN(jsimd_ycc_rgb_convert_sse2) - -EXTN(jsimd_ycc_rgb_convert_sse2): - push ebp - mov eax,esp ; eax = original ebp - sub esp, byte 4 - and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits - mov [esp],eax - mov ebp,esp ; ebp = aligned ebp - lea esp, [wk(0)] - pushpic eax ; make a room for GOT address - push ebx -; push ecx ; need not be preserved -; push edx ; need not be preserved - push esi - push edi - - get_GOT ebx ; get GOT address - movpic POINTER [gotptr], ebx ; save GOT address - - mov ecx, JDIMENSION [out_width(eax)] ; num_cols - test ecx,ecx - jz near .return - - push ecx - - mov edi, JSAMPIMAGE [input_buf(eax)] - mov ecx, JDIMENSION [input_row(eax)] - mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY] - mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY] - mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY] - lea esi, [esi+ecx*SIZEOF_JSAMPROW] - lea ebx, [ebx+ecx*SIZEOF_JSAMPROW] - lea edx, [edx+ecx*SIZEOF_JSAMPROW] - - pop ecx - - mov edi, JSAMPARRAY [output_buf(eax)] - mov eax, INT [num_rows(eax)] - test eax,eax - jle near .return - alignx 16,7 -.rowloop: - push eax - push edi - push edx - push ebx - push esi - push ecx ; col - - mov esi, JSAMPROW [esi] ; inptr0 - mov ebx, JSAMPROW [ebx] ; inptr1 - mov edx, JSAMPROW [edx] ; inptr2 - mov edi, JSAMPROW [edi] ; outptr - movpic eax, POINTER [gotptr] ; load GOT address (eax) - alignx 16,7 -.columnloop: - - movdqa xmm5, XMMWORD [ebx] ; xmm5=Cb(0123456789ABCDEF) - movdqa xmm1, XMMWORD [edx] ; xmm1=Cr(0123456789ABCDEF) - - pcmpeqw xmm4,xmm4 - pcmpeqw xmm7,xmm7 - psrlw xmm4,BYTE_BIT - psllw xmm7,7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..} - movdqa xmm0,xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..} - - pand xmm4,xmm5 ; xmm4=Cb(02468ACE)=CbE - psrlw xmm5,BYTE_BIT ; xmm5=Cb(13579BDF)=CbO - pand xmm0,xmm1 ; xmm0=Cr(02468ACE)=CrE - psrlw xmm1,BYTE_BIT ; xmm1=Cr(13579BDF)=CrO - - paddw xmm4,xmm7 - paddw xmm5,xmm7 - paddw xmm0,xmm7 - paddw xmm1,xmm7 - - ; (Original) - ; R = Y + 1.40200 * Cr - ; G = Y - 0.34414 * Cb - 0.71414 * Cr - ; B = Y + 1.77200 * Cb - ; - ; (This implementation) - ; R = Y + 0.40200 * Cr + Cr - ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr - ; B = Y - 0.22800 * Cb + Cb + Cb - - movdqa xmm2,xmm4 ; xmm2=CbE - movdqa xmm3,xmm5 ; xmm3=CbO - paddw xmm4,xmm4 ; xmm4=2*CbE - paddw xmm5,xmm5 ; xmm5=2*CbO - movdqa xmm6,xmm0 ; xmm6=CrE - movdqa xmm7,xmm1 ; xmm7=CrO - paddw xmm0,xmm0 ; xmm0=2*CrE - paddw xmm1,xmm1 ; xmm1=2*CrO - - pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbE * -FIX(0.22800)) - pmulhw xmm5,[GOTOFF(eax,PW_MF0228)] ; xmm5=(2*CbO * -FIX(0.22800)) - pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrE * FIX(0.40200)) - pmulhw xmm1,[GOTOFF(eax,PW_F0402)] ; xmm1=(2*CrO * FIX(0.40200)) - - paddw xmm4,[GOTOFF(eax,PW_ONE)] - paddw xmm5,[GOTOFF(eax,PW_ONE)] - psraw xmm4,1 ; xmm4=(CbE * -FIX(0.22800)) - psraw xmm5,1 ; xmm5=(CbO * -FIX(0.22800)) - paddw xmm0,[GOTOFF(eax,PW_ONE)] - paddw xmm1,[GOTOFF(eax,PW_ONE)] - psraw xmm0,1 ; xmm0=(CrE * FIX(0.40200)) - psraw xmm1,1 ; xmm1=(CrO * FIX(0.40200)) - - paddw xmm4,xmm2 - paddw xmm5,xmm3 - paddw xmm4,xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E - paddw xmm5,xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O - paddw xmm0,xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E - paddw xmm1,xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O - - movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E - movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O - - movdqa xmm4,xmm2 - movdqa xmm5,xmm3 - punpcklwd xmm2,xmm6 - punpckhwd xmm4,xmm6 - pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)] - pmaddwd xmm4,[GOTOFF(eax,PW_MF0344_F0285)] - punpcklwd xmm3,xmm7 - punpckhwd xmm5,xmm7 - pmaddwd xmm3,[GOTOFF(eax,PW_MF0344_F0285)] - pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)] - - paddd xmm2,[GOTOFF(eax,PD_ONEHALF)] - paddd xmm4,[GOTOFF(eax,PD_ONEHALF)] - psrad xmm2,SCALEBITS - psrad xmm4,SCALEBITS - paddd xmm3,[GOTOFF(eax,PD_ONEHALF)] - paddd xmm5,[GOTOFF(eax,PD_ONEHALF)] - psrad xmm3,SCALEBITS - psrad xmm5,SCALEBITS - - packssdw xmm2,xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285) - packssdw xmm3,xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285) - psubw xmm2,xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E - psubw xmm3,xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O - - movdqa xmm5, XMMWORD [esi] ; xmm5=Y(0123456789ABCDEF) - - pcmpeqw xmm4,xmm4 - psrlw xmm4,BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..} - pand xmm4,xmm5 ; xmm4=Y(02468ACE)=YE - psrlw xmm5,BYTE_BIT ; xmm5=Y(13579BDF)=YO - - paddw xmm0,xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE) - paddw xmm1,xmm5 ; xmm1=((R-Y)O+YO)=RO=R(13579BDF) - packuswb xmm0,xmm0 ; xmm0=R(02468ACE********) - packuswb xmm1,xmm1 ; xmm1=R(13579BDF********) - - paddw xmm2,xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE) - paddw xmm3,xmm5 ; xmm3=((G-Y)O+YO)=GO=G(13579BDF) - packuswb xmm2,xmm2 ; xmm2=G(02468ACE********) - packuswb xmm3,xmm3 ; xmm3=G(13579BDF********) - - paddw xmm4, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE) - paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF) - packuswb xmm4,xmm4 ; xmm4=B(02468ACE********) - packuswb xmm5,xmm5 ; xmm5=B(13579BDF********) - -%if RGB_PIXELSIZE == 3 ; --------------- - - ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) - ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) - ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) - ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **) - - punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) - punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F) - punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F) - - movdqa xmmG,xmmA - movdqa xmmH,xmmA - punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07) - punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F) - - psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --) - psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --) - - movdqa xmmC,xmmD - movdqa xmmB,xmmD - punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18) - punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --) - - psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --) - - movdqa xmmF,xmmE - punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29) - punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --) - - pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03) - movdqa xmmB,xmmE - punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14) - punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07) - punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29) - - pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B) - movdqa xmmB,xmmF - punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C) - punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F) - punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --) - - punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05) - punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) - punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F) - - cmp ecx, byte SIZEOF_XMMWORD - jb short .column_st32 - - test edi, SIZEOF_XMMWORD-1 - jnz short .out1 - ; --(aligned)------------------- - movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF - jmp short .out0 -.out1: ; --(unaligned)----------------- - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF -.out0: - add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr - sub ecx, byte SIZEOF_XMMWORD - jz near .nextrow - - add esi, byte SIZEOF_XMMWORD ; inptr0 - add ebx, byte SIZEOF_XMMWORD ; inptr1 - add edx, byte SIZEOF_XMMWORD ; inptr2 - jmp near .columnloop - alignx 16,7 - -.column_st32: - lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE - cmp ecx, byte 2*SIZEOF_XMMWORD - jb short .column_st16 - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - add edi, byte 2*SIZEOF_XMMWORD ; outptr - movdqa xmmA,xmmF - sub ecx, byte 2*SIZEOF_XMMWORD - jmp short .column_st15 -.column_st16: - cmp ecx, byte SIZEOF_XMMWORD - jb short .column_st15 - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - add edi, byte SIZEOF_XMMWORD ; outptr - movdqa xmmA,xmmD - sub ecx, byte SIZEOF_XMMWORD -.column_st15: - ; Store the lower 8 bytes of xmmA to the output when it has enough - ; space. - cmp ecx, byte SIZEOF_MMWORD - jb short .column_st7 - movq XMM_MMWORD [edi], xmmA - add edi, byte SIZEOF_MMWORD - sub ecx, byte SIZEOF_MMWORD - psrldq xmmA, SIZEOF_MMWORD -.column_st7: - ; Store the lower 4 bytes of xmmA to the output when it has enough - ; space. - cmp ecx, byte SIZEOF_DWORD - jb short .column_st3 - movd XMM_DWORD [edi], xmmA - add edi, byte SIZEOF_DWORD - sub ecx, byte SIZEOF_DWORD - psrldq xmmA, SIZEOF_DWORD -.column_st3: - ; Store the lower 2 bytes of eax to the output when it has enough - ; space. - movd eax, xmmA - cmp ecx, byte SIZEOF_WORD - jb short .column_st1 - mov WORD [edi], ax - add edi, byte SIZEOF_WORD - sub ecx, byte SIZEOF_WORD - shr eax, 16 -.column_st1: - ; Store the lower 1 byte of eax to the output when it has enough - ; space. - test ecx, ecx - jz short .nextrow - mov BYTE [edi], al - -%else ; RGB_PIXELSIZE == 4 ; ----------- - -%ifdef RGBX_FILLER_0XFF - pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********) - pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********) -%else - pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********) - pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********) -%endif - ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) - ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) - ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) - ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **) - - punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) - punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E) - punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F) - punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F) - - movdqa xmmC,xmmA - punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36) - punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E) - movdqa xmmG,xmmB - punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37) - punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F) - - movdqa xmmD,xmmA - punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33) - punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37) - movdqa xmmH,xmmC - punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B) - punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F) - - cmp ecx, byte SIZEOF_XMMWORD - jb short .column_st32 - - test edi, SIZEOF_XMMWORD-1 - jnz short .out1 - ; --(aligned)------------------- - movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC - movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH - jmp short .out0 -.out1: ; --(unaligned)----------------- - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC - movdqu XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH -.out0: - add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr - sub ecx, byte SIZEOF_XMMWORD - jz near .nextrow - - add esi, byte SIZEOF_XMMWORD ; inptr0 - add ebx, byte SIZEOF_XMMWORD ; inptr1 - add edx, byte SIZEOF_XMMWORD ; inptr2 - jmp near .columnloop - alignx 16,7 - -.column_st32: - cmp ecx, byte SIZEOF_XMMWORD/2 - jb short .column_st16 - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD - add edi, byte 2*SIZEOF_XMMWORD ; outptr - movdqa xmmA,xmmC - movdqa xmmD,xmmH - sub ecx, byte SIZEOF_XMMWORD/2 -.column_st16: - cmp ecx, byte SIZEOF_XMMWORD/4 - jb short .column_st15 - movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA - add edi, byte SIZEOF_XMMWORD ; outptr - movdqa xmmA,xmmD - sub ecx, byte SIZEOF_XMMWORD/4 -.column_st15: - ; Store two pixels (8 bytes) of xmmA to the output when it has enough - ; space. - cmp ecx, byte SIZEOF_XMMWORD/8 - jb short .column_st7 - movq XMM_MMWORD [edi], xmmA - add edi, byte SIZEOF_XMMWORD/8*4 - sub ecx, byte SIZEOF_XMMWORD/8 - psrldq xmmA, SIZEOF_XMMWORD/8*4 -.column_st7: - ; Store one pixel (4 bytes) of xmmA to the output when it has enough - ; space. - test ecx, ecx - jz short .nextrow - movd XMM_DWORD [edi], xmmA - -%endif ; RGB_PIXELSIZE ; --------------- - - alignx 16,7 - -.nextrow: - pop ecx - pop esi - pop ebx - pop edx - pop edi - pop eax - - add esi, byte SIZEOF_JSAMPROW - add ebx, byte SIZEOF_JSAMPROW - add edx, byte SIZEOF_JSAMPROW - add edi, byte SIZEOF_JSAMPROW ; output_buf - dec eax ; num_rows - jg near .rowloop - - sfence ; flush the write buffer - -.return: - pop edi - pop esi -; pop edx ; need not be preserved -; pop ecx ; need not be preserved - pop ebx - mov esp,ebp ; esp <- aligned ebp - pop esp ; esp <- original ebp - pop ebp - ret - -; For some reason, the OS X linker does not honor the request to align the -; segment unless we do this. - align 16 |