-#if defined(ARCH_X86) || defined(ARCH_POWERPC) || defined(ARCH_BFIN)
-#define AV_READ_TIME read_time
-#if defined(ARCH_X86_64)
-static inline uint64_t read_time(void)
-{
- uint64_t a, d;
- asm volatile("rdtsc\n\t"
- : "=a" (a), "=d" (d));
- return (d << 32) | (a & 0xffffffff);
-}
-#elif defined(ARCH_X86_32)
-static inline long long read_time(void)
-{
- long long l;
- asm volatile("rdtsc\n\t"
- : "=A" (l));
- 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)
-{
- uint32_t tbu, tbl, temp;
-
- /* from section 2.2.1 of the 32-bit PowerPC PEM */
- __asm__ __volatile__(
- "1:\n"
- "mftbu %2\n"
- "mftb %0\n"
- "mftbu %1\n"
- "cmpw %2,%1\n"
- "bne 1b\n"
- : "=r"(tbl), "=r"(tbu), "=r"(temp)
- :
- : "cc");
-
- return (((uint64_t)tbu)<<32) | (uint64_t)tbl;
-}
-#endif
-#elif defined(HAVE_GETHRTIME)
-#define AV_READ_TIME gethrtime
-#endif
-
-#ifdef AV_READ_TIME
-#define START_TIMER \
-uint64_t tend;\
-uint64_t tstart= AV_READ_TIME();\