From f70c2739022ab338611ec034ad7504b3534b650c Mon Sep 17 00:00:00 2001 From: Marc Hoffman Date: Wed, 13 Jun 2007 11:09:07 +0000 Subject: [PATCH] Blackfin - read_time primitive note this primitive currently uses a union to concatenate 2x32bit registers because of poor compiler support around DImode and asm. Originally committed as revision 9302 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavutil/common.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/libavutil/common.h b/libavutil/common.h index 313658cf4c..b9fd06d94b 100644 --- a/libavutil/common.h +++ b/libavutil/common.h @@ -267,7 +267,7 @@ static inline int ff_get_fourcc(const char *s){ }\ } -#if defined(ARCH_X86) || defined(ARCH_POWERPC) +#if defined(ARCH_X86) || defined(ARCH_POWERPC) || defined(ARCH_BFIN) #if defined(ARCH_X86_64) static inline uint64_t read_time(void) { @@ -286,6 +286,19 @@ static inline long long read_time(void) ); return l; } +#elif ARCH_BFIN +static inline uint64_t read_time(void) +{ + union { + struct { + unsigned lo; + unsigned hi; + } p; + unsigned long long c; + } t; + asm volatile ("%0=cycles; %1=cycles2;" : "=d" (t.p.lo), "=d" (t.p.hi)); + return t.c; +} #else //FIXME check ppc64 static inline uint64_t read_time(void) {