void ff_snow_vertical_compose97i_mmx(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width){ long i = width; while(i & 0x7) { i--; b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS; b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS; b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS; b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS; } asm volatile( "jmp 2f \n\t" "1: \n\t" "mov %6, %%"REG_a" \n\t" "mov %4, %%"REG_S" \n\t" snow_vertical_compose_mmx_load(REG_S,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7") snow_vertical_compose_mmx_r2r_add("mm0","mm2","mm4","mm6","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6") "pcmpeqd %%mm1, %%mm1 \n\t" "pslld $31, %%mm1 \n\t" "psrld $29, %%mm1 \n\t" "mov %5, %%"REG_a" \n\t" snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_sra("3","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_load(REG_a,"mm1","mm3","mm5","mm7") snow_vertical_compose_mmx_sub("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7") snow_vertical_compose_mmx_store(REG_a,"mm1","mm3","mm5","mm7") "mov %3, %%"REG_c" \n\t" snow_vertical_compose_mmx_load(REG_S,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_c,"mm1","mm3","mm5","mm7") snow_vertical_compose_mmx_sub("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_store(REG_S,"mm0","mm2","mm4","mm6") "mov %2, %%"REG_a" \n\t" snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_sra("2","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_c,"mm0","mm2","mm4","mm6") "pcmpeqd %%mm1, %%mm1 \n\t" "pslld $31, %%mm1 \n\t" "psrld $30, %%mm1 \n\t" "mov %1, %%"REG_S" \n\t" snow_vertical_compose_mmx_r2r_add("mm1","mm1","mm1","mm1","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_sra("2","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_c,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_store(REG_c,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_S,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_move("mm0","mm2","mm4","mm6","mm1","mm3","mm5","mm7") snow_vertical_compose_mmx_sra("1","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_r2r_add("mm1","mm3","mm5","mm7","mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_add(REG_a,"mm0","mm2","mm4","mm6") snow_vertical_compose_mmx_store(REG_a,"mm0","mm2","mm4","mm6") "2: \n\t" "sub $8, %%"REG_d" \n\t" "jge 1b \n\t" :"+d"(i) : "m"(b0),"m"(b1),"m"(b2),"m"(b3),"m"(b4),"m"(b5): "%"REG_a"","%"REG_S"","%"REG_c""); }