diff options
Diffstat (limited to 'sys/arch/arm/include/ieeefp.h')
-rw-r--r-- | sys/arch/arm/include/ieeefp.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sys/arch/arm/include/ieeefp.h b/sys/arch/arm/include/ieeefp.h new file mode 100644 index 00000000000..6aaf2b950e1 --- /dev/null +++ b/sys/arch/arm/include/ieeefp.h @@ -0,0 +1,41 @@ +/* $OpenBSD: ieeefp.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */ +/* $NetBSD: ieeefp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */ + +/* + * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 + * Public domain. + */ + +#ifndef _ARM32_IEEEFP_H_ +#define _ARM32_IEEEFP_H_ + +/* FP exception codes */ + +#define FP_EXCEPT_INV 0 +#define FP_EXCEPT_DZ 1 +#define FP_EXCEPT_OFL 2 +#define FP_EXCEPT_UFL 3 +#define FP_EXCEPT_IMP 4 + +/* Exception type (used by fpsetmask() et al.) */ + +typedef int fp_except; + +/* Bit defines for fp_except */ + +#define FP_X_INV (1 << FP_EXCEPT_INV) /* invalid operation exception */ +#define FP_X_DZ (1 << FP_EXCEPT_DZ) /* divide-by-zero exception */ +#define FP_X_OFL (1 << FP_EXCEPT_OFL) /* overflow exception */ +#define FP_X_UFL (1 << FP_EXCEPT_UFL) /* underflow exception */ +#define FP_X_IMP (1 << FP_EXCEPT_IMP) /* imprecise (loss of precision; "inexact") */ + +/* Rounding modes */ + +typedef enum { + FP_RN=0, /* round to nearest representable number */ + FP_RP=1, /* round toward positive infinity */ + FP_RM=2, /* round toward negative infinity */ + FP_RZ=3 /* round to zero (truncate) */ +} fp_rnd; + +#endif /* _ARM32_IEEEFP_H_ */ |