#define YUV422ToRGB32_MMX(out_RGB_reg,WriteCode)/
asm psubusb mm0, csMMX_16_b /* mm0 : Y -= 16 / /
asm psubsw mm1, csMMX_128_w / mm1 : u -= 128 / /
asm movq mm7, mm0 /
asm psubsw mm2, csMMX_128_w / mm2 : v -= 128 / /
asm pand mm0, csMMX_0x00FF_w / mm0 = 00 Y6 00 Y4 00 Y2 00 Y0 / /
asm psllw mm1, 3 / mm1 : u = 8 */ /
asm psllw mm2, 3 / mm2 : v = 8 */ /
asm psrlw mm7, 8 / / mm7 = 00 Y7 00 Y5 00 Y3 00 Y1 */
asm movq mm3, mm1 /
asm movq mm4, mm2 /
asm pmulhw mm1, csMMX_U_green_w / /* mm1 = u * U_green /
asm psllw mm0, 3 / y*=8 / /
asm pmulhw mm2, csMMX_V_green_w / mm2 = v * V_green / /
asm psllw mm7, 3 / / y*=8 /
asm pmulhw mm3, csMMX_U_blue_w /
asm paddsw mm1, mm2 /
asm pmulhw mm4, csMMX_V_red_w /
asm movq mm2, mm3 /
asm pmulhw mm0, csMMX_Y_coeff_w /
asm movq mm6, mm4 /
asm pmulhw mm7, csMMX_Y_coeff_w /
asm movq mm5, mm1 /
asm paddsw mm3, mm0 / / mm3 = B6 B4 B2 B0 /
asm paddsw mm2, mm7 / mm2 = B7 B5 B3 B1 / /
asm paddsw mm4, mm0 / / mm4 = R6 R4 R2 R0 /
asm paddsw mm6, mm7 / mm6 = R7 R5 R3 R1 / /
asm paddsw mm1, mm0 / mm1 = G6 G4 G2 G0 / /
asm paddsw mm5, mm7 / / mm5 = G7 G5 G3 G1 /
asm packuswb mm3, mm4 / mm3 = R6 R4 R2 R0 B6 B4 B2 B0 to [0-255] / /
asm packuswb mm2, mm6 / mm2 = R7 R5 R3 R1 B7 B5 B3 B1 to [0-255] / /
asm packuswb mm5, mm1 / mm5 = G6 G4 G2 G0 G7 G5 G3 G1 to [0-255] / /
asm movq mm4, mm3 /
asm punpcklbw mm3, mm2 / / mm3 = B7 B6 B5 B4 B3 B2 B1 B0 /
asm punpckldq mm1, mm5 / / mm1 = G7 G5 G3 G1 xx xx xx xx /
asm punpckhbw mm4, mm2 / / mm4 = R7 R6 R5 R4 R3 R2 R1 R0 /
asm punpckhbw mm5, mm1 / / mm5 = G7 G6 G5 G4 G3 G2 G1 G0 /
/*out/
asm pcmpeqb mm2, mm2 /* mm2 = FF FF FF FF FF FF FF FF / /
asm movq mm0, mm3 /
asm movq mm7, mm4 /
asm punpcklbw mm0, mm5 / / mm0 = G3 B3 G2 B2 G1 B1 G0 B0 /
asm punpcklbw mm7, mm2 / mm7 = FF R3 FF R2 FF R1 FF R0 / /
asm movq mm1, mm0 /
asm movq mm6, mm3 /
asm punpcklwd mm0, mm7 / / mm0 = FF R1 G1 B1 FF R0 G0 B0 /
asm punpckhwd mm1, mm7 / mm1 = FF R3 G3 B3 FF R2 G2 B2 / /
asm WriteCode[out_RGB_reg], mm0 /
asm movq mm7, mm4 /
asm punpckhbw mm6, mm5 / / mm6 = G7 B7 G6 B6 G5 B5 G4 B4 /
asm WriteCode[out_RGB_reg + 8], mm1 /
asm punpckhbw mm7, mm2 / / mm7 = FF R7 FF R6 FF R5 FF R4 /
asm movq mm0, mm6 /
asm punpcklwd mm6, mm7 / / mm6 = FF R5 G5 B5 FF R4 G4 B4 /
asm punpckhwd mm0, mm7 / / mm0 = FF R7 G7 B7 FF R6 G6 B6 */
asm WriteCode[out_RGB_reg + 8 * 2], mm6 /
asm WriteCode[out_RGB_reg + 8 * 3], mm0
为什么总是提示
错误 C2059 语法错误:“__asm”
应该怎么修改 求大神讲解
