projects / unix-history / blame
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1 | # Copyright (c) 1985, 1993 |
| 2 | # The Regents of the University of California. All rights reserved. | |
| bc0f2b0e | 3 | # |
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4 | # Redistribution and use in source and binary forms, with or without |
| 5 | # modification, are permitted provided that the following conditions | |
| 6 | # are met: | |
| 7 | # 1. Redistributions of source code must retain the above copyright | |
| 8 | # notice, this list of conditions and the following disclaimer. | |
| 9 | # 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | # notice, this list of conditions and the following disclaimer in the | |
| 11 | # documentation and/or other materials provided with the distribution. | |
| 12 | # 3. All advertising materials mentioning features or use of this software | |
| 13 | # must display the following acknowledgement: | |
| 14 | # This product includes software developed by the University of | |
| 15 | # California, Berkeley and its contributors. | |
| 16 | # 4. Neither the name of the University nor the names of its contributors | |
| 17 | # may be used to endorse or promote products derived from this software | |
| 18 | # without specific prior written permission. | |
| 19 | # | |
| 20 | # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | # SUCH DAMAGE. | |
| bc0f2b0e | 31 | # |
| ad787160 | 32 | # @(#)infnan.s 8.1 (Berkeley) 6/4/93 |
| bc0f2b0e | 33 | # |
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34 | .data |
| 35 | .align 2 | |
| 36 | _sccsid: | |
| ad787160 | 37 | .asciz "@(#)infnan.s 8.1 (ucb.elefunt) 6/4/93" |
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38 | |
| 39 | /* | |
| 40 | * double infnan(arg) | |
| 41 | * int arg; | |
| 42 | * where arg := EDOM if result is NaN | |
| 43 | * := ERANGE if result is +INF | |
| 44 | * := -ERANGE if result is -INF | |
| 45 | * | |
| 46 | * The Reserved Operand Fault is generated inside of this routine. | |
| 47 | */ | |
| 48 | .globl _infnan | |
| 49 | .set EDOM,33 | |
| 50 | .set ERANGE,34 | |
| 51 | .text | |
| 52 | .align 2 | |
| 53 | _infnan: | |
| 54 | .word 0x0000 # save nothing | |
| 55 | cmpl 4(fp),$ERANGE | |
| 56 | bneq 1f | |
| 57 | movl $ERANGE,_errno | |
| 58 | brb 2f | |
| 59 | 1: movl $EDOM,_errno | |
| 60 | 2: cmpf2 $0x80000000,$0x80000000 # generates the reserved operand fault | |
| 61 | ret |