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/* ----------------------------------------------------------------------- *
*
* Copyright 2010 Intel Corporation; author: H. Peter Anvin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston MA 02110-1301, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
#include <stdio.h>
#include <stdlib.h>
#include <sys/cpu.h>
#include <console.h>
#include <com32.h>
static void dump_reg(const char *name, uint32_t val)
{
int i;
printf("%-3s : %10u 0x%08x ", name, val, val);
for (i = 3; i >= 0; i--) {
uint8_t c = val >> (i*8);
putchar((c >= ' ' && c <= '~') ? c : '.');
}
putchar('\n');
}
int main(int argc, char *argv[])
{
uint32_t leaf, counter;
uint32_t eax, ebx, ecx, edx;
openconsole(&dev_null_r, &dev_stdcon_w);
if (argc < 2 || argc > 4) {
printf("Usage: %s leaf [counter]\n", argv[0]);
exit(1);
}
leaf = strtoul(argv[1], NULL, 0);
counter = (argc > 2) ? strtoul(argv[2], NULL, 0) : 0;
if (!cpu_has_eflag(EFLAGS_ID)) {
printf("The CPUID instruction is not supported\n");
exit(1);
}
cpuid_count(leaf, counter, &eax, &ebx, &ecx, &edx);
dump_reg("eax", eax);
dump_reg("ebx", ebx);
dump_reg("ecx", ecx);
dump_reg("edx", edx);
return 0;
}
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