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*/
SYSTEM_INFO systemInfo;
unsigned int regs[4];
GetSystemInfo(&systemInfo);
if (TclWinCPUID(0, regs) == TCL_OK
&& regs[1] == 0x756e6547 /* "Genu" */
&& regs[3] == 0x49656e69 /* "ineI" */
&& regs[2] == 0x6c65746e /* "ntel" */
&& TclWinCPUID(1, regs) == TCL_OK
&& (( ((regs[0]&0x00000F00) == 0xF00) /* Pentium 4 */
|| ((regs[0]&0x00000F00) == 0x600) ) /* or compatible (VM) */
&& ((regs[0] & 0x0FF00000) /* Extended family (bits 20-27) */
|| (regs[3] & 0x10000000))) /* Hyperthread (bit 28) */
|| (((regs[1]&0x00FF0000) >> 16) >= 2 /* CPU count */
|| systemInfo.dwNumberOfProcessors >= 2)) {
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>
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>
>
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>
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>
>
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*/
SYSTEM_INFO systemInfo;
unsigned int regs[4];
GetSystemInfo(&systemInfo);
if ( systemInfo.dwNumberOfProcessors >= 2
|| (TclWinCPUID(0, regs) == TCL_OK
&& (
(
regs[1] == 0x756e6547 /* "Genu" */
&& regs[3] == 0x49656e69 /* "ineI" */
&& regs[2] == 0x6c65746e /* "ntel" */
&& TclWinCPUID(1, regs) == TCL_OK
&& (( ((regs[0]&0x00000F00) == 0xF00) /* Pentium 4 */
|| ((regs[0]&0x00000F00) == 0x600) ) /* or compatible (VM) */
&& ((regs[0] & 0x0FF00000) /* Extended family (bits 20-27) */
|| (regs[3] & 0x10000000))) /* Hyperthread (bit 28) */
)
|| ((regs[1]&0x00FF0000) >> 16) >= 2 /* CPU count */
)
)
) {
timeInfo.perfCounterAvailable = TRUE;
} else {
timeInfo.perfCounterAvailable = FALSE;
}
}
#endif /* above code is Win32 only */
|