62 lines
2.4 KiB
ArmAsm
62 lines
2.4 KiB
ArmAsm
# Copyright (c) 1985 Regents of the University of California.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by the University of
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# California, Berkeley and its contributors.
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# 4. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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.data
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.align 2
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;_sccsid:
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;.asciz "from: @(#)infnan.s 5.5 (ucb.elefunt) 10/9/90"
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_rcsid:
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.asciz "$Id: infnan.S,v 1.1 1993/08/14 13:43:59 mycroft Exp $"
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/*
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* double infnan(arg)
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* int arg;
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* where arg := EDOM if result is NaN
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* := ERANGE if result is +INF
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* := -ERANGE if result is -INF
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*
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* The Reserved Operand Fault is generated inside of this routine.
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*/
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.globl _infnan
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.set EDOM,33
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.set ERANGE,34
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.text
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.align 2
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_infnan:
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.word 0x0000 # save nothing
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cmpl 4(fp),$ERANGE
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bneq 1f
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movl $ERANGE,_errno
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brb 2f
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1: movl $EDOM,_errno
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2: cmpf2 $0x80000000,$0x80000000 # generates the reserved operand fault
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ret
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