More accurate prefetching

Originally committed as revision 2513 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc

More accurate prefetching
Originally committed as revision 2513 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
18224bc9 · Nick Kurshev · 96b956cc · 18224bc9 · 18224bc9
Commit 18224bc9 authored Oct 28, 2001 by Nick Kurshev
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Showing with 6 additions and 12 deletions

rgb2rgb.c postproc/rgb2rgb.c +3 -6

rgb2rgb_template.c postproc/rgb2rgb_template.c +3 -6

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--- a/postproc/rgb2rgb.c
+++ b/postproc/rgb2rgb.c
@@ -37,9 +37,7 @@ void rgb24to32(uint8_t *src,uint8_t *dst,uint32_t src_size)
 #ifdef PREFETCH
  __asm __volatile(
    PREFETCH" %0\n\t"
-    PREFETCH" 64%0\n\t"
+    ::"m"(*s):"memory");
-    PREFETCHW" %1\n\t"
-    PREFETCHW" 64%1\n\t"::"m"(*s),"m"(*dest):"memory");
 #endif
  mm_end = (uint8_t*)((((unsigned long)end)/16)*16);
  __asm __volatile("movq %0, %%mm7"::"m"(mask32):"memory");
@@ -47,9 +45,8 @@ void rgb24to32(uint8_t *src,uint8_t *dst,uint32_t src_size)
  {
 #ifdef PREFETCH
    __asm __volatile(
-	PREFETCH" 128%0\n\t"
+	PREFETCH" 32%0\n\t"
-	PREFETCHW" 128%1"
+	::"m"(*s):"memory");
-	::"m"(*s),"m"(*dest):"memory");
 #endif
    __asm __volatile(
 	"movd	%1, %%mm0\n\t"

--- a/postproc/rgb2rgb_template.c
+++ b/postproc/rgb2rgb_template.c
@@ -37,9 +37,7 @@ void rgb24to32(uint8_t *src,uint8_t *dst,uint32_t src_size)
 #ifdef PREFETCH
  __asm __volatile(
    PREFETCH" %0\n\t"
-    PREFETCH" 64%0\n\t"
+    ::"m"(*s):"memory");
-    PREFETCHW" %1\n\t"
-    PREFETCHW" 64%1\n\t"::"m"(*s),"m"(*dest):"memory");
 #endif
  mm_end = (uint8_t*)((((unsigned long)end)/16)*16);
  __asm __volatile("movq %0, %%mm7"::"m"(mask32):"memory");
@@ -47,9 +45,8 @@ void rgb24to32(uint8_t *src,uint8_t *dst,uint32_t src_size)
  {
 #ifdef PREFETCH
    __asm __volatile(
-	PREFETCH" 128%0\n\t"
+	PREFETCH" 32%0\n\t"
-	PREFETCHW" 128%1"
+	::"m"(*s):"memory");
-	::"m"(*s),"m"(*dest):"memory");
 #endif
    __asm __volatile(
 	"movd	%1, %%mm0\n\t"