From 5dfd24ac98ed1fc01ef26ea0a41ee0eb6acd08b6 Mon Sep 17 00:00:00 2001 From: Arpi Date: Mon, 28 Jan 2002 19:34:16 +0000 Subject: [PATCH] workaround gcc bug "m" (0) avoiding useage of ebx Originally committed as revision 283 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/i386/mpegvideo_mmx_template.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/libavcodec/i386/mpegvideo_mmx_template.c b/libavcodec/i386/mpegvideo_mmx_template.c index 71df065..ffe5c84 100644 --- a/libavcodec/i386/mpegvideo_mmx_template.c +++ b/libavcodec/i386/mpegvideo_mmx_template.c @@ -67,17 +67,17 @@ static int RENAME(dct_quantize)(MpegEncContext *s, #if 1 asm volatile ( "xorl %%edx, %%edx \n\t" - "mul %%ebx \n\t" + "mul %%ecx \n\t" : "=d" (temp_block[0]), "=a"(dummy) - : "a" (block[0] + (q >> 1)), "b" (inverse[q]) + : "a" (block[0] + (q >> 1)), "c" (inverse[q]) ); #else asm volatile ( "xorl %%edx, %%edx \n\t" - "divw %%bx \n\t" + "divw %%cx \n\t" "movzwl %%ax, %%eax \n\t" : "=a" (temp_block[0]) - : "a" (block[0] + (q >> 1)), "b" (q) + : "a" (block[0] + (q >> 1)), "c" (q) : "%edx" ); #endif @@ -119,8 +119,10 @@ static int RENAME(dct_quantize)(MpegEncContext *s, SPREADW(%%mm3) "movd %4, %%mm4 \n\t" SPREADW(%%mm4) +#ifndef HAVE_MMX2 "movd %5, %%mm5 \n\t" SPREADW(%%mm5) +#endif "pxor %%mm7, %%mm7 \n\t" "movd %%eax, %%mm2 \n\t" SPREADW(%%mm2) @@ -160,9 +162,9 @@ static int RENAME(dct_quantize)(MpegEncContext *s, : "+a" (last_non_zero_p1) : "r" (block+64), "r" (qmat+64), #ifdef HAVE_MMX2 - "m" (maxLevel), "m" (minLevel), "m" (0 /* dummy */), "g" (2*i - 128), + "m" (maxLevel), "m" (minLevel), "m" (minLevel /* dummy */), "g" (2*i - 128), #else - "m" (0x7FFF - maxLevel), "m" (0x7FFF -maxLevel + minLevel), "m" (minLevel), "g" (2*i - 128), + "m" (0x7FFF - maxLevel), "m" (0x7FFF -maxLevel + minLevel), "m" (minLevel), "g" (2*i - 128), #endif "r" (inv_zigzag_direct16+64), "r" (temp_block+64) ); -- 2.7.4