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using fewer registers ... to workaround something 

Originally committed as revision 7991 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2002-10-31 01:42:59 +00:00
parent af27aea922
commit 01dc3aa48d
1 changed files with 17 additions and 18 deletions
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35
postproc/postprocess_template.c
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@ -892,11 +892,8 @@ src-=8;
*/
#elif defined (HAVE_MMX)
src+= stride*4;
asm volatile(
"pxor %%mm7, %%mm7 \n\t"
"leal (%0, %1), %%eax \n\t"
"leal (%%eax, %1, 4), %%edx \n\t"
"leal -40(%%esp), %%ecx \n\t" // make space for 4 8-byte vars
"andl $0xFFFFFFF8, %%ecx \n\t" // align
// 0 1 2 3 4 5 6 7
@ -908,12 +905,13 @@ src-=8;
"punpcklbw %%mm7, %%mm0 \n\t" // low part of line 0
"punpckhbw %%mm7, %%mm1 \n\t" // high part of line 0
"movq (%%eax), %%mm2 \n\t"
"movq (%0, %1), %%mm2 \n\t"
"leal (%0, %1, 2), %%eax \n\t"
"movq %%mm2, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t" // low part of line 1
"punpckhbw %%mm7, %%mm3 \n\t" // high part of line 1
"movq (%%eax, %1), %%mm4 \n\t"
"movq (%%eax), %%mm4 \n\t"
"movq %%mm4, %%mm5 \n\t"
"punpcklbw %%mm7, %%mm4 \n\t" // low part of line 2
"punpckhbw %%mm7, %%mm5 \n\t" // high part of line 2
@ -930,7 +928,7 @@ src-=8;
"psubw %%mm2, %%mm0 \n\t" // 2L0 - 5L1 + 5L2
"psubw %%mm3, %%mm1 \n\t" // 2H0 - 5H1 + 5H2
"movq (%%eax, %1, 2), %%mm2 \n\t"
"movq (%%eax, %1), %%mm2 \n\t"
"movq %%mm2, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t" // L3
"punpckhbw %%mm7, %%mm3 \n\t" // H3
@ -942,7 +940,7 @@ src-=8;
"movq %%mm0, (%%ecx) \n\t" // 2L0 - 5L1 + 5L2 - 2L3
"movq %%mm1, 8(%%ecx) \n\t" // 2H0 - 5H1 + 5H2 - 2H3
"movq (%0, %1, 4), %%mm0 \n\t"
"movq (%%eax, %1, 2), %%mm0 \n\t"
"movq %%mm0, %%mm1 \n\t"
"punpcklbw %%mm7, %%mm0 \n\t" // L4
"punpckhbw %%mm7, %%mm1 \n\t" // H4
@ -956,12 +954,13 @@ src-=8;
"psubw %%mm2, %%mm4 \n\t" // 2L2 - L3 + L4
"psubw %%mm3, %%mm5 \n\t" // 2H2 - H3 + H4
"leal (%%eax, %1), %0 \n\t"
"psllw $2, %%mm2 \n\t" // 4L3 - 4L4
"psllw $2, %%mm3 \n\t" // 4H3 - 4H4
"psubw %%mm2, %%mm4 \n\t" // 2L2 - 5L3 + 5L4
"psubw %%mm3, %%mm5 \n\t" // 2H2 - 5H3 + 5H4
//50 opcodes so far
"movq (%%edx), %%mm2 \n\t"
"movq (%0, %1, 2), %%mm2 \n\t"
"movq %%mm2, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t" // L5
"punpckhbw %%mm7, %%mm3 \n\t" // H5
@ -970,10 +969,10 @@ src-=8;
"psubw %%mm2, %%mm4 \n\t" // 2L2 - 5L3 + 5L4 - 2L5
"psubw %%mm3, %%mm5 \n\t" // 2H2 - 5H3 + 5H4 - 2H5
"movq (%%edx, %1), %%mm6 \n\t"
"movq (%%eax, %1, 4), %%mm6 \n\t"
"punpcklbw %%mm7, %%mm6 \n\t" // L6
"psubw %%mm6, %%mm2 \n\t" // L5 - L6
"movq (%%edx, %1), %%mm6 \n\t"
"movq (%%eax, %1, 4), %%mm6 \n\t"
"punpckhbw %%mm7, %%mm6 \n\t" // H6
"psubw %%mm6, %%mm3 \n\t" // H5 - H6
@ -987,7 +986,7 @@ src-=8;
"psubw %%mm2, %%mm0 \n\t" // 2L4 - 5L5 + 5L6
"psubw %%mm3, %%mm1 \n\t" // 2H4 - 5H5 + 5H6
"movq (%%edx, %1, 2), %%mm2 \n\t"
"movq (%0, %1, 4), %%mm2 \n\t"
"movq %%mm2, %%mm3 \n\t"
"punpcklbw %%mm7, %%mm2 \n\t" // L7
"punpckhbw %%mm7, %%mm3 \n\t" // H7
@ -1110,16 +1109,16 @@ src-=8;
"psubw %%mm6, %%mm4 \n\t"
"psubw %%mm7, %%mm5 \n\t"
"packsswb %%mm5, %%mm4 \n\t"
"movq (%%eax, %1, 2), %%mm0 \n\t"
"movq (%0), %%mm0 \n\t"
"paddb %%mm4, %%mm0 \n\t"
"movq %%mm0, (%%eax, %1, 2) \n\t"
"movq (%0, %1, 4), %%mm0 \n\t"
"movq %%mm0, (%0) \n\t"
"movq (%0, %1), %%mm0 \n\t"
"psubb %%mm4, %%mm0 \n\t"
"movq %%mm0, (%0, %1, 4) \n\t"
"movq %%mm0, (%0, %1) \n\t"
:
: "r" (src), "r" (stride), "m" (c->pQPb)
: "%eax", "%edx", "%ecx"
: "+r" (src)
: "r" (stride), "m" (c->pQPb)
: "%eax", "%ecx"
);
#else
const int l1= stride;