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Diffstat (limited to 'sysdeps/powerpc/fpu_control.h')
-rw-r--r--sysdeps/powerpc/fpu_control.h12
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"); \
}