Mixer: Visual C MMX asm code now aligns loops to 16 bytes.

This patch came from Stephane Marchesin's codefork, but I don't know who wrote it originally.
libsdl-org · Apr 17, 2005 · b439b7a · b439b7a
1 parent 9058056
commit b439b7a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/audio/SDL_mixer_MMX_VC.c b/src/audio/SDL_mixer_MMX_VC.c
@@ -19,7 +19,6 @@ void SDL_MixAudio_MMX_S16_VC(char* dst,char* src,unsigned int nSize,int volume)
 {
 	__asm
 	{
-		align	16
 
 		push	edi
 		push	esi
@@ -42,6 +41,7 @@ void SDL_MixAudio_MMX_S16_VC(char* dst,char* src,unsigned int nSize,int volume)
 		psllq	mm0, 16			//$16,%%mm0
 		por		mm0, mm1		//%%mm1,%%mm0			// mm0 = vol|vol|vol|vol
 
+		align	16
 mixloopS16:
 		movq	mm1, [esi]		//(%%esi),%%mm1\n" // mm1 = a|b|c|d
 		movq	mm2, mm1		//%%mm1,%%mm2\n" // mm2 = a|b|c|d
@@ -98,7 +98,6 @@ void SDL_MixAudio_MMX_S8_VC(char* dst,char* src,unsigned int nSize,int volume)
 {
 	_asm
 	{
-		align 16
 
 		push	edi
 		push	esi
@@ -122,6 +121,7 @@ void SDL_MixAudio_MMX_S8_VC(char* dst,char* src,unsigned int nSize,int volume)
 		cmp		ebx, 0		//$0,%%ebx
 		je		endS8
 
+		align 16
 mixloopS8:
 		pxor	mm2, mm2	//%%mm2,%%mm2		// mm2 = 0
 		movq	mm1, [esi]	//(%%esi),%%mm1	// mm1 = a|b|c|d|e|f|g|h