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#include "timing.h"
#ifdef TIMING
#ifndef __alpha
#include <stdio.h>
static struct {
unsigned int st_time[2];
unsigned int cycles;
unsigned int calls;
} timingInfo[64];
static int timingEnters;
static void rdtsc(unsigned int t[2])
{
__asm
{
mov esi, t
_emit 0xf
_emit 0x31
mov [esi], eax
mov [esi+4], edx
}
}
void _timingInit(void)
{
memset(timingInfo,0,sizeof(timingInfo));
}
void _timingEnter(int which)
{
// if (!timingEnters++) __asm cli
rdtsc(timingInfo[which].st_time);
}
void _timingLeave(int which)
{
unsigned int t[2];
rdtsc(t);
// if (!--timingEnters) __asm sti
if (t[1]==timingInfo[which].st_time[1])
{
timingInfo[which].cycles += t[0]-timingInfo[which].st_time[0];
}
else
{
timingInfo[which].cycles += t[0]+(0xffffffff-timingInfo[which].st_time[0]);
}
timingInfo[which].calls++;
}
void _timingPrint(void)
{
int x;
FILE *fp = fopen("C:\\timings.txt","wt");
for (x = 0; x < sizeof(timingInfo)/sizeof(timingInfo[0]); x ++)
{
if (timingInfo[x].calls)
fprintf(fp,"%d: %d calls, %d clocks/call\n",x,timingInfo[x].calls,timingInfo[x].cycles/timingInfo[x].calls);
}
timingInit();
fclose(fp);
}
#endif
#endif
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