vbagx/source/ngc/tbtime.h

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/****************************************************************************
* tmbinc msec timer
****************************************************************************/
#ifndef __TMBINCTIMER__
#define __TMBINCTIMER__
#ifdef HW_RVL
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#define TB_CLOCK 60750000 //WII
#else
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#define TB_CLOCK 40500000
#endif
#define mftb(rval) ({unsigned long u; do { \
asm volatile ("mftbu %0" : "=r" (u)); \
asm volatile ("mftb %0" : "=r" ((rval)->l)); \
asm volatile ("mftbu %0" : "=r" ((rval)->u)); \
} while(u != ((rval)->u)); })
typedef struct
{
unsigned long l, u;
}
tb_t;
unsigned long tb_diff_msec (tb_t * end, tb_t * start);
#endif