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#include <stdio.h>
#include "xbyak/xbyak.h"
#include "xbyak/xbyak_util.h"
#define NUM_OF_ARRAY(x) (sizeof(x) / sizeof(x[0]))
struct PopCountTest : public Xbyak::CodeGenerator {
PopCountTest(int n)
{
mov(eax, n);
popcnt(eax, eax);
ret();
}
};
void putCPUinfo()
{
using namespace Xbyak::util;
Cpu cpu;
printf("vendor %s\n", cpu.has(Cpu::tINTEL) ? "intel" : "amd");
static const struct {
Cpu::Type type;
const char *str;
} tbl[] = {
{ Cpu::tMMX, "mmx" },
{ Cpu::tMMX2, "mmx2" },
{ Cpu::tCMOV, "cmov" },
{ Cpu::tSSE, "sse" },
{ Cpu::tSSE2, "sse2" },
{ Cpu::tSSE3, "sse3" },
{ Cpu::tSSSE3, "ssse3" },
{ Cpu::tSSE41, "sse41" },
{ Cpu::tSSE42, "sse42" },
{ Cpu::tPOPCNT, "popcnt" },
{ Cpu::t3DN, "3dn" },
{ Cpu::tE3DN, "e3dn" },
{ Cpu::tSSE4a, "sse4a" },
{ Cpu::tSSE5, "sse5" },
{ Cpu::tAESNI, "aesni" },
{ Cpu::tRDTSCP, "rdtscp" },
{ Cpu::tOSXSAVE, "osxsave(xgetvb)" },
{ Cpu::tPCLMULQDQ, "pclmulqdq" },
{ Cpu::tAVX, "avx" },
{ Cpu::tFMA, "fma" },
};
for (size_t i = 0; i < NUM_OF_ARRAY(tbl); i++) {
if (cpu.has(tbl[i].type)) printf(" %s", tbl[i].str);
}
printf("\n");
if (cpu.has(Cpu::tPOPCNT)) {
const int n = 0x12345678; // bitcount = 13
const int ok = 13;
int r = PopCountTest(n).getCode<int (*)()>()();
if (r == ok) {
puts("popcnt ok");
} else {
printf("popcnt ng %d %d\n", r, ok);
}
}
}
#ifdef XBYAK32
struct EipTest : public Xbyak::CodeGenerator {
EipTest()
{
Xbyak::util::setEipTo(this, eax);
ret();
}
};
void putEip()
{
EipTest s;
int (*getEip)() = s.getCode<int(*)()>();
printf("eip=%08x\n", getEip());
}
#endif
int main()
{
#ifdef XBYAK32
puts("32bit");
#else
puts("64bit");
#endif
putCPUinfo();
#ifdef XBYAK32
putEip();
#endif
}
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