diff options
Diffstat (limited to 'sys/arch/i386/include/specialreg.h')
| -rw-r--r-- | sys/arch/i386/include/specialreg.h | 39 |
1 files changed, 21 insertions, 18 deletions
diff --git a/sys/arch/i386/include/specialreg.h b/sys/arch/i386/include/specialreg.h index f0d105fc283..f44dd5c2242 100644 --- a/sys/arch/i386/include/specialreg.h +++ b/sys/arch/i386/include/specialreg.h @@ -1,3 +1,4 @@ +/* $OpenBSD: specialreg.h,v 1.5 1998/05/25 06:52:38 downsj Exp $ */ /* $NetBSD: specialreg.h,v 1.7 1994/10/27 04:16:26 cgd Exp $ */ /*- @@ -86,26 +87,28 @@ #define CR4_PCE 0x00000100 /* enable RDPMC instruction for all cpls */ /* - * CPUID "features" bits: + * CPUID "features" (and "extended features") bits: */ -#define CPUID_FPU 0x0001 /* processor has an FPU? */ -#define CPUID_VME 0x0002 /* has virtual mode (%cr4's VME/PVI) */ -#define CPUID_DE 0x0004 /* has debugging extension */ -#define CPUID_PSE 0x0008 /* has page 4MB page size extension */ -#define CPUID_TSC 0x0010 /* has time stamp counter */ -#define CPUID_MSR 0x0020 /* has mode specific registers */ -#define CPUID_PAE 0x0040 /* has phys address extension */ -#define CPUID_MCE 0x0080 /* has machine check exception */ -#define CPUID_CX8 0x0100 /* has CMPXCHG8B instruction */ -#define CPUID_APIC 0x0200 /* has enabled APIC */ -#define CPUID_B10 0x0400 /* reserved, MTRR */ -#define CPUID_B11 0x0800 /* has SYSENTER/SYSEXIT extension */ -#define CPUID_MTRR 0x1000 /* has memory type range register */ -#define CPUID_PGE 0x2000 /* has page global extension */ -#define CPUID_MCA 0x4000 /* has machine check architecture */ -#define CPUID_CMOV 0x8000 /* has CMOVcc instruction */ -/* bits 16->22: unknown, 23=MMX supported, 24-31 reserved */ +#define CPUID_FPU 0x00000001 /* processor has an FPU? */ +#define CPUID_VME 0x00000002 /* has virtual mode (%cr4's VME/PVI) */ +#define CPUID_DE 0x00000004 /* has debugging extension */ +#define CPUID_PSE 0x00000008 /* has page 4MB page size extension */ +#define CPUID_TSC 0x00000010 /* has time stamp counter */ +#define CPUID_MSR 0x00000020 /* has mode specific registers */ +#define CPUID_PAE 0x00000040 /* has phys address extension */ +#define CPUID_MCE 0x00000080 /* has machine check exception */ +#define CPUID_CX8 0x00000100 /* has CMPXCHG8B instruction */ +#define CPUID_APIC 0x00000200 /* has enabled APIC */ +#define CPUID_SYS1 0x00000400 /* has SYSCALL/SYSRET inst. (Cyrix) */ +#define CPUID_SYS2 0x00000800 /* has SYSCALL/SYSRET inst. (AMD) */ +#define CPUID_MTRR 0x00001000 /* has memory type range register */ +#define CPUID_PGE 0x00002000 /* has page global extension */ +#define CPUID_MCA 0x00004000 /* has machine check architecture */ +#define CPUID_CMOV 0x00008000 /* has CMOVcc instruction */ +#define CPUID_MMX 0x00800000 /* has MMX instructions */ +#define CPUID_EMMX 0x01000000 /* has extended MMX (Cyrix) */ +#define CPUID_3D 0x80000000 /* has AMD-3D instructions (AMD) */ /* * the following four 3-byte registers control the non-cacheable regions. |