| /* $NetBSD: fenv.h,v 1.2 2014/01/29 00:22:09 matt Exp $ */ | |
| /* | |
| * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 | |
| * Public domain. | |
| */ | |
| #ifndef _AARCH64_FENV_H_ | |
| #define _AARCH64_FENV_H_ | |
| /* AArch64 split FPSCR into two registers FPCR and FPSR */ | |
| typedef struct { | |
| unsigned int __fpcr; | |
| unsigned int __fpsr; | |
| } fenv_t; | |
| typedef int fexcept_t; | |
| #define FE_INVALID 0x01 /* invalid operation exception */ | |
| #define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ | |
| #define FE_OVERFLOW 0x04 /* overflow exception */ | |
| #define FE_UNDERFLOW 0x08 /* underflow exception */ | |
| #define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */ | |
| #define FE_ALL_EXCEPT 0x1f | |
| #define FE_TONEAREST 0 /* round to nearest representable number */ | |
| #define FE_UPWARD 1 /* round toward positive infinity */ | |
| #define FE_DOWNWARD 2 /* round toward negative infinity */ | |
| #define FE_TOWARDZERO 3 /* round to zero (truncate) */ | |
| __BEGIN_DECLS | |
| /* Default floating-point environment */ | |
| extern const fenv_t __fe_dfl_env; | |
| #define FE_DFL_ENV (&__fe_dfl_env) | |
| __END_DECLS | |
| #endif /* _AARCH64_FENV_H_ */ |