2 * Copyright (c) 1990 Andrew Moore, Talke Studio
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
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19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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33 * from: @(#) ieeefp.h 1.0 (Berkeley) 9/23/93
38 * IEEE floating point type and constant definitions.
41 #ifndef _MACHINE_IEEEFP_H_
42 #define _MACHINE_IEEEFP_H_
48 FP_RN=0, /* round to nearest */
49 FP_RM, /* round down to minus infinity */
50 FP_RP, /* round up to plus infinity */
58 FP_PS=0, /* 24 bit (single-precision) */
59 FP_PRS, /* reserved */
60 FP_PD, /* 53 bit (double-precision) */
61 FP_PE /* 64 bit (extended-precision) */
64 #define fp_except_t int
69 #define FP_X_INV 0x01 /* invalid operation */
70 #define FP_X_DNML 0x02 /* denormal */
71 #define FP_X_DZ 0x04 /* zero divide */
72 #define FP_X_OFL 0x08 /* overflow */
73 #define FP_X_UFL 0x10 /* underflow */
74 #define FP_X_IMP 0x20 /* (im)precision */
75 #define FP_X_STK 0x40 /* stack fault */
80 #define FP_MSKS_REG 0 /* exception masks */
81 #define FP_PRC_REG 0 /* precision */
82 #define FP_RND_REG 0 /* direction */
83 #define FP_STKY_REG 1 /* sticky flags */
86 * FP register bit field masks
88 #define FP_MSKS_FLD 0x3f /* exception masks field */
89 #define FP_PRC_FLD 0x300 /* precision control field */
90 #define FP_RND_FLD 0xc00 /* round control field */
91 #define FP_STKY_FLD 0x3f /* sticky flags field */
94 * FP register bit field offsets
96 #define FP_MSKS_OFF 0 /* exception masks offset */
97 #define FP_PRC_OFF 8 /* precision control offset */
98 #define FP_RND_OFF 10 /* round control offset */
99 #define FP_STKY_OFF 0 /* sticky flags offset */
101 #endif /* !_MACHINE_IEEEFP_H_ */