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- # Copyright (c) 1985 Regents of the University of California.
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions
- # are met:
- # 1. Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution.
- # 3. All advertising materials mentioning features or use of this software
- # must display the following acknowledgement:
- # This product includes software developed by the University of
- # California, Berkeley and its contributors.
- # 4. Neither the name of the University nor the names of its contributors
- # may be used to endorse or promote products derived from this software
- # without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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- # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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- # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- # @(#)infnan.s 5.5 (Berkeley) 10/9/90
- #
- .data
- .align 2
- _sccsid:
- .asciz "@(#)infnan.s 5.5 (ucb.elefunt) 10/9/90"
-
- /*
- * double infnan(arg)
- * int arg;
- * where arg := EDOM if result is NaN
- * := ERANGE if result is +INF
- * := -ERANGE if result is -INF
- *
- * The Reserved Operand Fault is generated inside of this routine.
- */
- .globl _infnan
- .set EDOM,33
- .set ERANGE,34
- .text
- .align 2
- _infnan:
- .word 0x0000 # save nothing
- cmpl 4(fp),$ERANGE
- bneq 1f
- movl $ERANGE,_errno
- brb 2f
- 1: movl $EDOM,_errno
- 2: cmpf2 $0x80000000,$0x80000000 # generates the reserved operand fault
- ret
-