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- Changed Linux to use clock_gettime for profiling instead of rdtsc. This

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avoids potential erroneous results on multicore and variable speed
  processors. Windows will need to be updated accordingly.



SVN r1142 (trunk)
This commit is contained in:
Randy Heit 2008-08-10 03:25:08 +00:00
commit ad96225213
21 changed files with 399 additions and 540 deletions
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78
src/x86.cpp
View file

@ -3,9 +3,15 @@
#endif
#include <mmintrin.h>
#include <emmintrin.h>
#include "doomtype.h"
#include "i_system.h"
#include "doomtype.h"
#include "doomdef.h"
#include "x86.h"
extern "C"
{
CPUInfo CPU;
}
#ifdef __GNUC__
#define __cpuid(output, func) __asm__ __volatile__("cpuid" : "=a" ((output)[0]),\
@ -95,8 +101,11 @@ haveid:
cpu->Family = (foo[0] & 0xF00) >> 8;
if (cpu->Family == 15)
{ // Add extended model and family.
cpu->Family += (foo[0] >> 20) & 0xFF;
{ // Add extended family.
cpu->Family += (foo[0] >> 20) & 0xFF;
}
if (cpu->Family == 6 || cpu->Family == 15)
{ // Add extended model ID.
cpu->Model |= (foo[0] >> 12) & 0xF0;
}
@ -135,6 +144,65 @@ haveid:
#endif
}
void DumpCPUInfo(const CPUInfo *cpu)
{
char cpustring[4*4*3+1];
// Why does Intel right-justify this string (on P4s)
// or add extra spaces (on Cores)?
const char *f = cpu->CPUString;
char *t;
// Skip extra whitespace at the beginning.
while (*f == ' ')
{
++f;
}
// Copy string to temp buffer, but condense consecutive
// spaces to a single space character.
for (t = cpustring; *f != '\0'; ++f)
{
if (*f == ' ' && *(f - 1) == ' ')
{
continue;
}
*t++ = *f;
}
*t = '\0';
if (cpu->VendorID[0])
{
Printf("CPU Vendor ID: %s\n", cpu->VendorID);
if (cpustring[0])
{
Printf(" Name: %s\n", cpustring);
}
if (cpu->bIsAMD)
{
Printf(" Family %d (%d), Model %d, Stepping %d\n",
cpu->Family, cpu->AMDFamily, cpu->AMDModel, cpu->AMDStepping);
}
else
{
Printf(" Family %d, Model %d, Stepping %d\n",
cpu->Family, cpu->Model, cpu->Stepping);
}
Printf(" Features:");
if (cpu->bMMX) Printf(" MMX");
if (cpu->bMMXPlus) Printf(" MMX+");
if (cpu->bSSE) Printf(" SSE");
if (cpu->bSSE2) Printf(" SSE2");
if (cpu->bSSE3) Printf(" SSE3");
if (cpu->bSSSE3) Printf(" SSSE3");
if (cpu->bSSE41) Printf(" SSE4.1");
if (cpu->bSSE42) Printf(" SSE4.2");
if (cpu->b3DNow) Printf(" 3DNow!");
if (cpu->b3DNowPlus) Printf(" 3DNow!+");
Printf ("\n");
}
}
#if 0
// Compiler output for this function is crap compared to the assembly