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Add comment about CPUID Processor extended state Enumeration Fn0000000d %eax.

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msaitoh 2013-10-04 17:21:43 +00:00
parent 4713a86712
commit b688898b59
1 changed files with 3 additions and 1 deletions
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4
sys/arch/x86/include/specialreg.h
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@ -1,4 +1,4 @@
/* $NetBSD: specialreg.h,v 1.68 2013/09/14 17:18:18 msaitoh Exp $ */
/* $NetBSD: specialreg.h,v 1.69 2013/10/04 17:21:43 msaitoh Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
@ -395,6 +395,8 @@
#endif /* XEN */
/*
* CPUID Processor extended state Enumeration Fn0000000d %eax
*
* Extended Control Register XCR0
*/
#define XCR0_X87 0x00000001 /* x87 FPU/MMX state */