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Kill the CpuGetInfo function.

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We're probably going to kill pnNetDiag at some point anyways.
This commit is contained in:
Darryl Pogue
2012-03-10 13:25:41 -08:00
parent 8c95dbe3a8
commit 3b39393077
3 changed files with 0 additions and 141 deletions
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101
Sources/Plasma/NucleusLib/pnUtils/Win32/pnUtW32Misc.cpp
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@ -58,104 +58,3 @@ const wchar_t * AppGetCommandLine () {
return GetCommandLineW();
}
/*****************************************************************************
*
* System status
*
***/
//============================================================================
// Loosely taken from MS's cpuid code sample
void CpuGetInfo (
uint16_t * cpuCaps,
uint32_t * cpuVendor,
uint16_t * cpuSignature
) {
uint32_t signature = 0;
uint32_t extended = 0;
uint32_t flags[2] = { 0, 0 };
cpuVendor[0] = 0;
#ifdef _MSC_VER
_asm {
// Detect if cpuid instruction is supported by attempting
// to change the ID bit of EFLAGS
pushfd
pop eax // get EFLAGS
mov ecx, eax // store copy of original EFLAGS
xor eax, 0x200000 // flip ID bit
push eax
popfd // replace EFLAGS
pushfd // get EFLAGS
pop eax
xor eax, ecx
je DONE
// Get processor id (GenuineIntel, AuthenticAMD, etc)
xor eax, eax
cpuid
mov edi, cpuVendor
mov [edi + 0], ebx
mov [edi + 4], edx
mov [edi + 8], ecx
// Check if capability flags are supported
cmp eax, 1
jl DONE
// Get processor capability flags and signature
mov eax, 1
cpuid
mov signature, eax
mov [flags + 0], edx
mov [flags + 4], ecx
// Check for extended capabilities
mov eax, 0x80000000
cpuid
cmp eax, 0x80000001
jl DONE
// Get extended capabilities
mov eax, 0x80000001
cpuid
mov extended, edx
DONE:
}
#endif
// Decode capability flags
const static struct CpuCap {
uint16_t cpuFlag;
uint8_t field;
uint8_t bit;
} s_caps[] = {
// feature field bit
// ------- ----- ---
{ kCpuCapCmov, 0, 15 },
{ kCpuCapEst, 1, 7 },
{ kCpuCapHtt, 0, 28 },
{ kCpuCapMmx, 0, 23 },
{ kCpuCapPsn, 0, 18 },
{ kCpuCapSse, 0, 25 },
{ kCpuCapSse2, 0, 26 },
{ kCpuCapSse3, 1, 0 },
{ kCpuCapTsc, 0, 4 },
};
for (unsigned i = 0; i < arrsize(s_caps); ++i) {
const CpuCap & cap = s_caps[i];
if (flags[cap.field] & (1 << cap.bit))
*cpuCaps |= cap.cpuFlag;
}
// Copy signature
*cpuSignature = uint16_t(signature & 0xfff);
// If this is an AMD CPU, check for 3DNow support
const char * vendorAmd = "AuthenticAMD";
if (!memcmp(vendorAmd, cpuVendor, 12)) {
if (extended & (1 << 31))
*cpuCaps |= kCpuCap3dNow;
}
}