diff options
Diffstat (limited to 'sysdeps/powerpc/fpu_control.h')
| -rw-r--r-- | sysdeps/powerpc/fpu_control.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/sysdeps/powerpc/fpu_control.h b/sysdeps/powerpc/fpu_control.h index b31e0ee..d21987f 100644 --- a/sysdeps/powerpc/fpu_control.h +++ b/sysdeps/powerpc/fpu_control.h @@ -34,20 +34,16 @@ #define _FPU_MASK_UM 0x20 /* underflow */ #define _FPU_MASK_XM 0x08 /* inexact */ #define _FPU_MASK_IM 0x80 /* invalid operation */ -#define _FPU_MASK_VXCVI 0x100 /* invalid operation for integer convert */ -#define _FPU_MASK_VXSQRT 0x200 /* invalid operation for square root */ -#define _FPU_MASK_VXSOFT 0x400 /* invalid operation raised by software */ -#define _FPU_RESERVED 0xfffff800 /* These bits are reserved are not changed. */ +#define _FPU_RESERVED 0xffffff00 /* These bits are reserved are not changed. */ -/* The fdlibm code requires no interrupts for exceptions. Don't - change the rounding mode, it would break long double I/O! */ +/* The fdlibm code requires no interrupts for exceptions. */ #define _FPU_DEFAULT 0x00000000 /* Default value. */ /* IEEE: same as above, but (some) exceptions; we leave the 'inexact' exception off. */ -#define _FPU_IEEE 0x000003f0 +#define _FPU_IEEE 0x000000f0 /* Type of the control word. */ typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__))); @@ -59,7 +55,7 @@ typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__SI__))); tmp[1]; } ) #define _FPU_SETCW(cw) { \ fpu_control_t tmp[2] __attribute__ ((__aligned__(8))); \ - tmp[0] = 0xFFF80000; /* arbitrary, more-or-less */ \ + tmp[0] = 0xFFF80000; /* More-or-less arbitrary; this is a QNaN. */ \ tmp[1] = cw; \ __asm__ ("lfd 0,%0; mtfsf 255,0" : : "m" (*tmp) : "fr0"); \ } |