; ; jdmrgext.asm - merged upsampling/color conversion (64-bit SSE2) ; ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB ; Copyright 2009, 2012 D. R. Commander ; ; Based on ; 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" ; -------------------------------------------------------------------------- ; ; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. ; ; GLOBAL(void) ; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width, ; JSAMPIMAGE input_buf, ; JDIMENSION in_row_group_ctr, ; JSAMPARRAY output_buf); ; ; r10 = JDIMENSION output_width ; r11 = JSAMPIMAGE input_buf ; r12 = JDIMENSION in_row_group_ctr ; r13 = JSAMPARRAY output_buf %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] %define WK_NUM 3 align 16 global EXTN(jsimd_h2v1_merged_upsample_sse2) EXTN(jsimd_h2v1_merged_upsample_sse2): push rbp mov rax,rsp ; rax = original rbp sub rsp, byte 4 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits mov [rsp],rax mov rbp,rsp ; rbp = aligned rbp lea rsp, [wk(0)] collect_args push rbx mov ecx, r10d ; col test rcx,rcx jz near .return push rcx mov rdi, r11 mov ecx, r12d mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY] mov rdi, r13 mov rsi, JSAMPROW [rsi+rcx*SIZEOF_JSAMPROW] ; inptr0 mov rbx, JSAMPROW [rbx+rcx*SIZEOF_JSAMPROW] ; inptr1 mov rdx, JSAMPROW [rdx+rcx*SIZEOF_JSAMPROW] ; inptr2 mov rdi, JSAMPROW [rdi] ; outptr pop rcx ; col .columnloop: movdqa xmm6, XMMWORD [rbx] ; xmm6=Cb(0123456789ABCDEF) movdqa xmm7, XMMWORD [rdx] ; xmm7=Cr(0123456789ABCDEF) pxor xmm1,xmm1 ; xmm1=(all 0's) pcmpeqw xmm3,xmm3 psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..} movdqa xmm4,xmm6 punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL movdqa xmm0,xmm7 punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL paddw xmm6,xmm3 paddw xmm4,xmm3 paddw xmm7,xmm3 paddw xmm0,xmm3 ; (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 xmm5,xmm6 ; xmm5=CbH movdqa xmm2,xmm4 ; xmm2=CbL paddw xmm6,xmm6 ; xmm6=2*CbH paddw xmm4,xmm4 ; xmm4=2*CbL movdqa xmm1,xmm7 ; xmm1=CrH movdqa xmm3,xmm0 ; xmm3=CrL paddw xmm7,xmm7 ; xmm7=2*CrH paddw xmm0,xmm0 ; xmm0=2*CrL pmulhw xmm6,[rel PW_MF0228] ; xmm6=(2*CbH * -FIX(0.22800)) pmulhw xmm4,[rel PW_MF0228] ; xmm4=(2*CbL * -FIX(0.22800)) pmulhw xmm7,[rel PW_F0402] ; xmm7=(2*CrH * FIX(0.40200)) pmulhw xmm0,[rel PW_F0402] ; xmm0=(2*CrL * FIX(0.40200)) paddw xmm6,[rel PW_ONE] paddw xmm4,[rel PW_ONE] psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800)) psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800)) paddw xmm7,[rel PW_ONE] paddw xmm0,[rel PW_ONE] psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200)) psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200)) paddw xmm6,xmm5 paddw xmm4,xmm2 paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H movdqa xmm6,xmm5 movdqa xmm7,xmm2 punpcklwd xmm5,xmm1 punpckhwd xmm6,xmm1 pmaddwd xmm5,[rel PW_MF0344_F0285] pmaddwd xmm6,[rel PW_MF0344_F0285] punpcklwd xmm2,xmm3 punpckhwd xmm7,xmm3 pmaddwd xmm2,[rel PW_MF0344_F0285] pmaddwd xmm7,[rel PW_MF0344_F0285] paddd xmm5,[rel PD_ONEHALF] paddd xmm6,[rel PD_ONEHALF] psrad xmm5,SCALEBITS psrad xmm6,SCALEBITS paddd xmm2,[rel PD_ONEHALF] paddd xmm7,[rel PD_ONEHALF] psrad xmm2,SCALEBITS psrad xmm7,SCALEBITS packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285) packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285) psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H mov al,2 ; Yctr jmp short .Yloop_1st .Yloop_2nd: movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H .Yloop_1st: movdqa xmm7, XMMWORD [rsi] ; xmm7=Y(0123456789ABCDEF) pcmpeqw xmm6,xmm6 psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..} pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H) movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H) movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H) paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE) paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF) packuswb xmm0,xmm0 ; xmm0=R(02468ACE********) packuswb xmm1,xmm1 ; xmm1=R(13579BDF********) paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE) paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF) packuswb xmm2,xmm2 ; xmm2=G(02468ACE********) packuswb xmm3,xmm3 ; xmm3=G(13579BDF********) paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE) paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=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 rcx, byte SIZEOF_XMMWORD jb short .column_st32 test rdi, SIZEOF_XMMWORD-1 jnz short .out1 ; --(aligned)------------------- movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF jmp short .out0 .out1: ; --(unaligned)----------------- movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF .out0: add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr sub rcx, byte SIZEOF_XMMWORD jz near .endcolumn add rsi, byte SIZEOF_XMMWORD ; inptr0 dec al ; Yctr jnz near .Yloop_2nd add rbx, byte SIZEOF_XMMWORD ; inptr1 add rdx, byte SIZEOF_XMMWORD ; inptr2 jmp near .columnloop .column_st32: lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE cmp rcx, byte 2*SIZEOF_XMMWORD jb short .column_st16 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD add rdi, byte 2*SIZEOF_XMMWORD ; outptr movdqa xmmA,xmmF sub rcx, byte 2*SIZEOF_XMMWORD jmp short .column_st15 .column_st16: cmp rcx, byte SIZEOF_XMMWORD jb short .column_st15 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA add rdi, byte SIZEOF_XMMWORD ; outptr movdqa xmmA,xmmD sub rcx, byte SIZEOF_XMMWORD .column_st15: ; Store the lower 8 bytes of xmmA to the output when it has enough ; space. cmp rcx, byte SIZEOF_MMWORD jb short .column_st7 movq XMM_MMWORD [rdi], xmmA add rdi, byte SIZEOF_MMWORD sub rcx, 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 rcx, byte SIZEOF_DWORD jb short .column_st3 movd XMM_DWORD [rdi], xmmA add rdi, byte SIZEOF_DWORD sub rcx, byte SIZEOF_DWORD psrldq xmmA, SIZEOF_DWORD .column_st3: ; Store the lower 2 bytes of rax to the output when it has enough ; space. movd eax, xmmA cmp rcx, byte SIZEOF_WORD jb short .column_st1 mov WORD [rdi], ax add rdi, byte SIZEOF_WORD sub rcx, byte SIZEOF_WORD shr rax, 16 .column_st1: ; Store the lower 1 byte of rax to the output when it has enough ; space. test rcx, rcx jz short .endcolumn mov BYTE [rdi], 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 rcx, byte SIZEOF_XMMWORD jb short .column_st32 test rdi, SIZEOF_XMMWORD-1 jnz short .out1 ; --(aligned)------------------- movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH jmp short .out0 .out1: ; --(unaligned)----------------- movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH .out0: add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr sub rcx, byte SIZEOF_XMMWORD jz near .endcolumn add rsi, byte SIZEOF_XMMWORD ; inptr0 dec al ; Yctr jnz near .Yloop_2nd add rbx, byte SIZEOF_XMMWORD ; inptr1 add rdx, byte SIZEOF_XMMWORD ; inptr2 jmp near .columnloop .column_st32: cmp rcx, byte SIZEOF_XMMWORD/2 jb short .column_st16 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD add rdi, byte 2*SIZEOF_XMMWORD ; outptr movdqa xmmA,xmmC movdqa xmmD,xmmH sub rcx, byte SIZEOF_XMMWORD/2 .column_st16: cmp rcx, byte SIZEOF_XMMWORD/4 jb short .column_st15 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA add rdi, byte SIZEOF_XMMWORD ; outptr movdqa xmmA,xmmD sub rcx, byte SIZEOF_XMMWORD/4 .column_st15: ; Store two pixels (8 bytes) of xmmA to the output when it has enough ; space. cmp rcx, byte SIZEOF_XMMWORD/8 jb short .column_st7 movq XMM_MMWORD [rdi], xmmA add rdi, byte SIZEOF_XMMWORD/8*4 sub rcx, 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 rcx, rcx jz short .endcolumn movd XMM_DWORD [rdi], xmmA %endif ; RGB_PIXELSIZE ; --------------- .endcolumn: sfence ; flush the write buffer .return: pop rbx uncollect_args mov rsp,rbp ; rsp <- aligned rbp pop rsp ; rsp <- original rbp pop rbp ret ; -------------------------------------------------------------------------- ; ; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. ; ; GLOBAL(void) ; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width, ; JSAMPIMAGE input_buf, ; JDIMENSION in_row_group_ctr, ; JSAMPARRAY output_buf); ; ; r10 = JDIMENSION output_width ; r11 = JSAMPIMAGE input_buf ; r12 = JDIMENSION in_row_group_ctr ; r13 = JSAMPARRAY output_buf align 16 global EXTN(jsimd_h2v2_merged_upsample_sse2) EXTN(jsimd_h2v2_merged_upsample_sse2): push rbp mov rax,rsp mov rbp,rsp collect_args push rbx mov eax, r10d mov rdi, r11 mov ecx, r12d mov rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] mov rdx, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY] mov rdi, r13 lea rsi, [rsi+rcx*SIZEOF_JSAMPROW] push rdx ; inptr2 push rbx ; inptr1 push rsi ; inptr00 mov rbx,rsp push rdi push rcx push rax %ifdef WIN64 mov r8, rcx mov r9, rdi mov rcx, rax mov rdx, rbx %else mov rdx, rcx mov rcx, rdi mov rdi, rax mov rsi, rbx %endif call EXTN(jsimd_h2v1_merged_upsample_sse2) pop rax pop rcx pop rdi pop rsi pop rbx pop rdx add rdi, byte SIZEOF_JSAMPROW ; outptr1 add rsi, byte SIZEOF_JSAMPROW ; inptr01 push rdx ; inptr2 push rbx ; inptr1 push rsi ; inptr00 mov rbx,rsp push rdi push rcx push rax %ifdef WIN64 mov r8, rcx mov r9, rdi mov rcx, rax mov rdx, rbx %else mov rdx, rcx mov rcx, rdi mov rdi, rax mov rsi, rbx %endif call EXTN(jsimd_h2v1_merged_upsample_sse2) pop rax pop rcx pop rdi pop rsi pop rbx pop rdx pop rbx uncollect_args pop rbp ret ; For some reason, the OS X linker does not honor the request to align the ; segment unless we do this. align 16