From d335b145131effef5d660f06228ff8c8f63c19dc Mon Sep 17 00:00:00 2001 From: "Ryan C. Gordon" Date: Wed, 4 Apr 2007 09:36:25 +0000 Subject: [PATCH] Merge r3005:3006 from branches/SDL-1.2: Alpha blending MMX/3DNow register bug. --- src/video/SDL_blit_A.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/video/SDL_blit_A.c b/src/video/SDL_blit_A.c index d13970b93..b144de604 100644 --- a/src/video/SDL_blit_A.c +++ b/src/video/SDL_blit_A.c @@ -387,7 +387,9 @@ BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info) packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ /* get alpha channel shift */ - movd_m2r(sf->Ashift, mm5); /* Ashift -> mm5 */ + __asm__ __volatile__ ( + "movd %0, %%mm5" + : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */ while (height--) { /* *INDENT-OFF* */ @@ -1632,7 +1634,6 @@ BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info) int dstskip = info->d_skip >> 2; SDL_PixelFormat *sf = info->src; Uint32 amask = sf->Amask; - Uint32 ashift = sf->Ashift; __asm__( /* make mm6 all zeros. */ @@ -1650,7 +1651,7 @@ BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info) "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ /* get alpha channel shift */ "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ - : /* nothing */ : "m"(amask), "m"(ashift)); + : /* nothing */ : "rm"(amask), "rm"((Uint32) sf->Ashift)); while (height--) {