diff options
Diffstat (limited to 'sys/arch/i386/include/cpufunc.h')
| -rw-r--r-- | sys/arch/i386/include/cpufunc.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sys/arch/i386/include/cpufunc.h b/sys/arch/i386/include/cpufunc.h index 193c12e829e..514d634c8f2 100644 --- a/sys/arch/i386/include/cpufunc.h +++ b/sys/arch/i386/include/cpufunc.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpufunc.h,v 1.9 2003/05/27 23:52:01 fgsch Exp $ */ +/* $OpenBSD: cpufunc.h,v 1.10 2003/10/24 09:03:20 grange Exp $ */ /* $NetBSD: cpufunc.h,v 1.8 1994/10/27 04:15:59 cgd Exp $ */ /* @@ -55,6 +55,8 @@ static __inline u_int rcr4(void); static __inline void tlbflush(void); static __inline void disable_intr(void); static __inline void enable_intr(void); +static __inline u_int read_eflags(void); +static __inline void write_eflags(u_int); static __inline void wbinvd(void); static __inline void wrmsr(u_int, u_int64_t); static __inline u_int64_t rdmsr(u_int); @@ -161,6 +163,21 @@ enable_intr(void) __asm __volatile("sti"); } +static __inline u_int +read_eflags(void) +{ + u_int ef; + + __asm __volatile("pushfl; popl %0" : "=r" (ef)); + return (ef); +} + +static __inline void +write_eflags(u_int ef) +{ + __asm __volatile("pushl %0; popfl" : : "r" (ef)); +} + static __inline void wbinvd(void) { |