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Detecting CPU vendor. Support for printing ascii

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Dr-Noob
2018-03-30 11:58:27 +02:00
parent 4e1ee88c4c
commit 3e1f6af8ae
8 changed files with 248 additions and 23 deletions
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47
01h.c
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@@ -1,6 +1,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "01h.h"
#include "cpuid.h"
@@ -40,6 +41,7 @@ struct cpuInfo {
int AES;
int SHA;
VENDOR cpu_vendor;
/*** Number of threads ***/
int nThreads;
/*** Threads per core(Intel HyperThreading) ***/
@@ -67,16 +69,54 @@ void initializeCpuInfo(struct cpuInfo* cpu) {
cpu->SHA = BOOLEAN_FALSE;
}
#define MASK 0xFF
VENDOR getCPUVendor(unsigned eax,unsigned ebx,unsigned ecx,unsigned edx) {
char name[13];
name[__COUNTER__] = ebx & MASK;
name[__COUNTER__] = (ebx>>8) & MASK;
name[__COUNTER__] = (ebx>>16) & MASK;
name[__COUNTER__] = (ebx>>24) & MASK;
name[__COUNTER__] = edx & MASK;
name[__COUNTER__] = (edx>>8) & MASK;
name[__COUNTER__] = (edx>>16) & MASK;
name[__COUNTER__] = (edx>>24) & MASK;
name[__COUNTER__] = ecx & MASK;
name[__COUNTER__] = (ecx>>8) & MASK;
name[__COUNTER__] = (ecx>>16) & MASK;
name[__COUNTER__] = (ecx>>24) & MASK;
name[__COUNTER__] = '\0';
if(strcmp(VENDOR_INTEL_STRING,name) == 0)
return VENDOR_INTEL;
else if (strcmp(VENDOR_AMD_STRING,name) == 0)
return VENDOR_AMD;
return VENDOR_INVALID;
}
struct cpuInfo* getCPUInfo() {
struct cpuInfo* cpu = malloc(sizeof(struct cpuInfo));
initializeCpuInfo(cpu);
unsigned eax, ebx, ecx, edx;
//Get max cpuid level
eax = 0x0000000;
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxLevels = eax;
//Fill vendor
cpu->cpu_vendor = getCPUVendor(eax,ebx,ecx,edx);
if(cpu->cpu_vendor == VENDOR_INVALID) {
printf("ERROR: CPU vendor is neither AMD nor INTEL\n");
return NULL;
}
//Get max extended level
cpuid(&eax, &ebx, &ecx, &edx);
cpu->maxExtendedLevels = eax;
@@ -202,7 +242,10 @@ char* getPeakPerformance(struct cpuInfo* cpu, long freq) {
return string;
}
//4 cores(8 threads)
VENDOR getCPUVendorInternal(struct cpuInfo* cpu) {
return cpu->cpu_vendor;
}
char* getString_NumberCores(struct cpuInfo* cpu) {
if(cpu->HT > 1) {
//2(N.Cores)7(' cores(')2(N.Threads)9(' threads)')
@@ -213,7 +256,7 @@ char* getString_NumberCores(struct cpuInfo* cpu) {
}
else {
char* string = malloc(sizeof(char)*2+1);
snprintf(string,2+1,"%d cores",cpu->nThreads);
snprintf(string,2+7+1,"%d cores",cpu->nThreads);
return string;
}