File: amd64cpuinfo.c

package info (click to toggle)
nacl 20110221-4
  • links: PTS
  • area: main
  • in suites: wheezy
  • size: 4,264 kB
  • sloc: asm: 19,669; ansic: 13,199; cpp: 1,125; sh: 793; makefile: 72
file content (16 lines) | stat: -rw-r--r-- 324 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
#include <stdio.h>
#include <sys/types.h>
#include "osfreq.c"

long long cpucycles_amd64cpuinfo(void)
{
  unsigned long long result;
  asm volatile(".byte 15;.byte 49;shlq $32,%%rdx;orq %%rdx,%%rax"
    : "=a" (result) ::  "%rdx");
  return result;
}

long long cpucycles_amd64cpuinfo_persecond(void)
{
  return osfreq();
}