2 * Copyright (c) 2001 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _MACHINE_IEEEFP_H_
30 #define _MACHINE_IEEEFP_H_
32 /* Deprecated historical FPU control interface */
34 #include <machine/fpu.h>
36 typedef int fp_except_t;
37 #define FP_X_INV IA64_FPSR_TRAP_VD /* invalid operation exception */
38 #define FP_X_DZ IA64_FPSR_TRAP_ZD /* divide-by-zero exception */
39 #define FP_X_OFL IA64_FPSR_TRAP_OD /* overflow exception */
40 #define FP_X_UFL IA64_FPSR_TRAP_UD /* underflow exception */
41 #define FP_X_IMP IA64_FPSR_TRAP_ID /* imprecise(inexact) exception */
44 FP_RN = 0, /* round to nearest */
45 FP_RM, /* round toward minus infinity */
46 FP_RP, /* round toward plus infinity */
47 FP_RZ /* round toward zero */
51 extern fp_rnd_t fpgetround(void);
52 extern fp_rnd_t fpsetround(fp_rnd_t);
53 extern fp_except_t fpgetmask(void);
54 extern fp_except_t fpsetmask(fp_except_t);
57 #endif /* !_MACHINE_IEEEFP_H_ */