| 1 | /* $NetBSD: ieeefp.h,v 1.2 2020/03/14 16:12:16 skrll Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 |
| 5 | * Public domain. |
| 6 | */ |
| 7 | |
| 8 | #ifndef _RISCV_IEEEFP_H_ |
| 9 | #define _RISCV_IEEEFP_H_ |
| 10 | |
| 11 | #include <sys/featuretest.h> |
| 12 | |
| 13 | #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE) |
| 14 | |
| 15 | #include <riscv/fenv.h> |
| 16 | |
| 17 | #if !defined(_ISOC99_SOURCE) |
| 18 | |
| 19 | /* Exception type (used by fpsetmask() et al.) */ |
| 20 | |
| 21 | typedef int fp_except; |
| 22 | |
| 23 | /* Bit defines for fp_except */ |
| 24 | |
| 25 | #define FP_X_INV FE_INVALID /* invalid operation exception */ |
| 26 | #define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */ |
| 27 | #define FP_X_OFL FE_OVERFLOW /* overflow exception */ |
| 28 | #define FP_X_UFL FE_UNDERFLOW /* underflow exception */ |
| 29 | #define FP_X_IMP FE_INEXACT /* imprecise (prec. loss; "inexact") */ |
| 30 | |
| 31 | /* Rounding modes */ |
| 32 | |
| 33 | typedef enum { |
| 34 | FP_RN=FE_TONEAREST, /* round to nearest representable number */ |
| 35 | FP_RP=FE_UPWARD, /* round toward positive infinity */ |
| 36 | FP_RM=FE_DOWNWARD, /* round toward negative infinity */ |
| 37 | FP_RZ=FE_TOWARDZERO /* round to zero (truncate) */ |
| 38 | } fp_rnd; |
| 39 | |
| 40 | #endif /* !_ISOC99_SOURCE */ |
| 41 | |
| 42 | #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ |
| 43 | |
| 44 | #endif /* _RISCV_IEEEFP_H_ */ |