mirror of
https://github.com/taviso/loadlibrary
synced 2026-06-08 17:42:38 +00:00
Tavis Ormandy
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#include <stdint.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdbool.h>
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#include <search.h>
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#include "winnt_types.h"
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#include "pe_linker.h"
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#include "ntoskernel.h"
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#include "log.h"
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#include "winexports.h"
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#include "util.h"
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#define PF_FLOATING_POINT_PRECISION_ERRATA 0
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#define PF_XMMI64_INSTRUCTIONS_AVAILABLE 10
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#define PF_FASTFAIL_AVAILABLE 23
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#define PF_MMX_INSTRUCTIONS_AVAILABLE 3
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STATIC BOOL WINAPI IsProcessorFeaturePresent(DWORD ProcessorFeature)
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{
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switch (ProcessorFeature) {
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case PF_XMMI64_INSTRUCTIONS_AVAILABLE:
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case PF_FLOATING_POINT_PRECISION_ERRATA:
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DebugLog("IsProcessorFeaturePresent(%u) => FALSE", ProcessorFeature);
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return FALSE;
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case PF_MMX_INSTRUCTIONS_AVAILABLE:
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case PF_FASTFAIL_AVAILABLE: // NOTE: this will cause int 0x29
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DebugLog("IsProcessorFeaturePresent(%u) => TRUE", ProcessorFeature);
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return TRUE;
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}
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DebugLog("IsProcessorFeaturePresent(%u) => FALSE (Unknown)", ProcessorFeature);
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return FALSE;
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}
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DECLARE_CRT_EXPORT("IsProcessorFeaturePresent", IsProcessorFeaturePresent);
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