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