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* As an exception, if every logical processor on the system
* is on the same chip, we use the performance counter anyway,
* presuming that everyone's TSC is locked to the same
* oscillator.
*/
SYSTEM_INFO systemInfo;
unsigned int regs[4];
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
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