diff options
Diffstat (limited to 'sysdeps/sparc/fpu_control.h')
| -rw-r--r-- | sysdeps/sparc/fpu_control.h | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/sysdeps/sparc/fpu_control.h b/sysdeps/sparc/fpu_control.h index cfd85844c3..5ef3824702 100644 --- a/sysdeps/sparc/fpu_control.h +++ b/sysdeps/sparc/fpu_control.h @@ -31,12 +31,12 @@ #define _FPU_SINGLE 0x10000000 /* DO NOT USE */ /* rounding control / Sparc */ -#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ -#define _FPU_RC_DOWN 0x80000000 -#define _FPU_RC_UP 0xc0000000 +#define _FPU_RC_DOWN 0xc0000000 +#define _FPU_RC_UP 0x80000000 #define _FPU_RC_ZERO 0x40000000 +#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */ -#define _FPU_RESERVED 0x300000 /* Reserved bits in cw */ +#define _FPU_RESERVED 0x30300000 /* Reserved bits in cw */ /* Now two recommended cw */ @@ -45,26 +45,16 @@ - extended precision - rounding to nearest - exceptions on overflow, zero divide and NaN */ -#define _FPU_DEFAULT 0x1f +#define _FPU_DEFAULT 0x1e /* IEEE: same as above, but exceptions */ #define _FPU_IEEE 0x0 -/* private namespace. It should only be used by crt0.o. */ -extern unsigned short __fpu_control; - /* Type of the control word. */ -typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__))); +typedef unsigned int fpu_control_t; #define _FPU_GETCW(cw) __asm__ ("st %%fsr,%0" : "=m" (*&cw)) -#define _FPU_SETCW(cw) __asm__ ("ld %0,%%fsr" : "=m" (*&cw)) - -#if 0 -/* The intel original macros */ -/* Macros for accessing the hardware control word. */ -#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (*&cw)) -#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (*&cw)) -#endif +#define _FPU_SETCW(cw) __asm__ ("ld %0,%%fsr" : : "m" (*&cw)) /* Default control word set at startup. */ extern fpu_control_t __fpu_control; |