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/* pentime.h */
extern unsigned long int rdtsc_lo(void);
extern unsigned long int rdtsc_hi(void);
extern unsigned long int rdtsc_mid(void);
#define ProfileStart() \
{ \
int time = rdtsc_lo();
#define ProfileStop(x) \
textprint("%s %d\n",x,rdtsc_lo()-time); \
}
#pragma aux rdtsc_lo = \
"db 0fh, 31h" \
value [eax] \
modify [edx];
#pragma aux rdtsc_hi = \
"db 0fh, 31h" \
value [edx] \
modify [eax];
#pragma aux rdtsc_mid = \
"db 0fh, 31h" \
"shr eax, 10h" \
"shl edx, 10h" \
"add eax, edx" \
value [eax] \
modify [edx];
/* Test to see if we have a Pentium or not. Note that this test is reliable
* enough for a tools project (where we can put in an overide switch) but not
* for a released product.
*/
extern unsigned char Pentium(void);
#pragma aux Pentium = \
"pushfd" \
"pop eax" \
"or eax, 00200000h" \
"push eax" \
"popfd" \
"pushfd" \
"pop eax" \
"mov ecx, eax" \
"and eax, 00200000h" \
"cmp eax, 0" \
"je not_Pentium" \
"mov eax, ecx" \
"and eax, 0ffdfffffh" \
"push eax" \
"popfd" \
"pushfd" \
"pop eax" \
"and eax, 00200000h" \
"cmp eax, 0" \
"jne not_Pentium" \
"is_Pentium: mov al, 1" \
"jmp finish" \
"not_Pentium: mov al, 0" \
"finish: nop" \
value [al] \
modify [eax ecx]
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