Enrico Fraccaroli (Galfurian)
118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
/// @file cpuid.c
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/// @brief `cpuid` program.
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/// @copyright (c) 2014-2024 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#include <stdio.h>
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int main(int argc, char **argv)
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{
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#if 0
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(void)argc;
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(void)argv;
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// List of features.
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const char *ecx_features[ECX_FLAGS_SIZE] = {
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"SSE3",
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"Reserved",
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"Reserved",
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"Monitor/MWAIT",
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"CPL Debug Store",
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"Virtual Machine",
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"Safer Mode",
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"Enhanced Intel SpeedStep Technology",
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"Thermal Monitor 2",
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"SSSE3",
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"L1 Context ID",
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"Reserved",
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"Reserved",
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"CMPXCHG16B",
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"xTPR Update Control",
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"Perfmon and Debug Capability",
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"Reserved",
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"Reserved",
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"DCA",
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"SSE4.1",
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"SSE4.2",
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"Reserved",
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"Reserved",
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"POPCNT"
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};
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const char *edx_features[EDX_FLAGS_SIZE] = {
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"x87 FPU",
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"Virtual 8086 Mode",
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"Debugging Extensions",
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"Page Size Extensions",
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"Time Stamp Counter",
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"RDMSR and WRMSR",
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"Physical Address Extensions",
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"Machine Check Exception",
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"CMPXCHG8B",
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"APIC On-chip",
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"Reserved",
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"SYSENTER and SYSEXIT",
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"Memory Type Range Registers",
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"PTE Global Bit",
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"Machine Check Architecture",
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"Conditional Move Instructions",
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"Page Attribute Table",
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"36-bit Page Size",
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"Processor Serial Number",
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"Reserved",
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"Debug Store",
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"Thermal Monitor and Clock Facilities",
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"Intel MMX",
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"FXSAVE and FXRSTOR",
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"SSE",
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"SSE2",
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"Self Snoop",
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"Multi-Threading",
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"TTC",
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"Reserved",
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"Pending Break Enable"
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};
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int i;
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int verbose = 0;
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// Examine possible options.
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if (argv[1] != NULL) {
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if (strcmp(argv[1], "-v") == 0) {
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verbose = 1;
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} else {
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printf("Unknown option %s\n", argv[1]);
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printf("CPUID help message\n"
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"-v : shows verbose CPUID information\n");
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return;
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}
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}
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printf("----- CPU ID Information -----\n");
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if (strcmp(sinfo.brand_string, "Reserved") != 0) {
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printf("%s\n", sinfo.brand_string);
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}
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printf("Vendor: %s\n", sinfo.cpu_vendor);
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printf("Type: %s, Family: %x, Model: %x\n", sinfo.cpu_type,
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sinfo.cpu_family, sinfo.cpu_model);
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printf("Apic ID: %d\n", sinfo.apic_id);
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if (verbose == 1) {
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printf("\n--- Supported features ---\n");
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for (i = 0; i < ECX_FLAGS_SIZE; i++) {
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if (sinfo.cpuid_ecx_flags[i] == 1) {
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printf("%s\n", ecx_features[i]);
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}
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}
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for (i = 0; i < EDX_FLAGS_SIZE; i++) {
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if (sinfo.cpuid_edx_flags[i] == 1) {
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printf("%s\n", edx_features[i]);
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}
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}
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printf("---------------------------\n");
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}
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#endif
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return 0;
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}
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