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authorMarcoen Hirschberg <marcoen@gmail.com>2006-12-31 08:56:59 +0000
committerMarcoen Hirschberg <marcoen@gmail.com>2006-12-31 08:56:59 +0000
commit6d6eb0816ad38fe8d3f34706a1f26622fb7bc782 (patch)
tree62849086aba8c21cd5a0f8eb56a366499982d6cb /apps
parentc390620439d2c9298c7699aa7abbbf0ed775fbd8 (diff)
fix for the inline asm in CLIP on the gigabeat by Steve Gotthard (fs#6488). Turns out that gcc rearranged the ASM block without volatile
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11873 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps')
-rw-r--r--apps/plugins/mpegplayer/idct.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/apps/plugins/mpegplayer/idct.c b/apps/plugins/mpegplayer/idct.c
index 372d18a6dc..7ad78bfcd9 100644
--- a/apps/plugins/mpegplayer/idct.c
+++ b/apps/plugins/mpegplayer/idct.c
@@ -60,11 +60,10 @@ static inline unsigned CLIP(int value)
);
return value;
}
-/* FIXME why doesn't this work on the gigabeat? */
-#elif defined CPU_ARM && CONFIG_CPU != S3C2440
+#elif defined CPU_ARM
static inline unsigned CLIP(int value)
{
- asm ( /* Note: Uses knowledge that only the low byte of the result is used */
+ asm volatile ( /* Note: Uses knowledge that only the low byte of the result is used */
"cmp %[v], #255 \n"
"mvnhi %[v], %[v], asr #31 \n"
: /* outputs */
@@ -302,7 +301,7 @@ void mpeg2_idct_init (uint32_t accel)
mpeg2_idct_copy = mpeg2_idct_copy_c;
mpeg2_idct_add = mpeg2_idct_add_c;
-#if !defined(CPU_COLDFIRE) && !defined(CPU_ARM) || CONFIG_CPU == S3C2440
+#if !defined(CPU_COLDFIRE) && !defined(CPU_ARM)
for (i = -3840; i < 3840 + 256; i++)
CLIP(i) = (i < 0) ? 0 : ((i > 255) ? 255 : i);
#endif