diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/include/specialreg.h | 2 | ||||
| -rw-r--r-- | sys/i386/include/specialreg.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sys/amd64/include/specialreg.h b/sys/amd64/include/specialreg.h index d95f9331f623..937cab003e7a 100644 --- a/sys/amd64/include/specialreg.h +++ b/sys/amd64/include/specialreg.h @@ -71,6 +71,8 @@ #define CR4_MCE 0x00000040 /* Machine check enable */ #define CR4_PGE 0x00000080 /* Page global enable */ #define CR4_PCE 0x00000100 /* Performance monitoring counter enable */ +#define CR4_FXSR 0x00000200 /* Fast FPU save/restore used by OS */ +#define CR4_XMM 0x00000400 /* enable SIMD/MMX2 to use except 16 */ /* * CPUID instruction features register diff --git a/sys/i386/include/specialreg.h b/sys/i386/include/specialreg.h index d95f9331f623..937cab003e7a 100644 --- a/sys/i386/include/specialreg.h +++ b/sys/i386/include/specialreg.h @@ -71,6 +71,8 @@ #define CR4_MCE 0x00000040 /* Machine check enable */ #define CR4_PGE 0x00000080 /* Page global enable */ #define CR4_PCE 0x00000100 /* Performance monitoring counter enable */ +#define CR4_FXSR 0x00000200 /* Fast FPU save/restore used by OS */ +#define CR4_XMM 0x00000400 /* enable SIMD/MMX2 to use except 16 */ /* * CPUID instruction features register |