2 * Written by J.T. Conklin, Apr 6, 1995
4 * $NetBSD: ieeefp.h,v 1.2 1999/07/07 01:52:26 danw Exp $
8 #ifndef _MACHINE_IEEEFP_H_
9 #define _MACHINE_IEEEFP_H_
11 /* Deprecated historical FPU control interface */
13 typedef int fp_except_t;
14 #define FP_X_IMP 0x01 /* imprecise (loss of precision) */
15 #define FP_X_DZ 0x02 /* divide-by-zero exception */
16 #define FP_X_UFL 0x04 /* underflow exception */
17 #define FP_X_OFL 0x08 /* overflow exception */
18 #define FP_X_INV 0x10 /* invalid operation exception */
21 FP_RN=0, /* round to nearest representable number */
22 FP_RZ=1, /* round to zero (truncate) */
23 FP_RP=2, /* round toward positive infinity */
24 FP_RM=3 /* round toward negative infinity */
28 extern fp_rnd_t fpgetround(void);
29 extern fp_rnd_t fpsetround(fp_rnd_t);
30 extern fp_except_t fpgetmask(void);
31 extern fp_except_t fpsetmask(fp_except_t);
32 extern fp_except_t fpgetsticky(void);
35 #endif /* _MACHINE_IEEEFP_H_ */