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Diffstat (limited to 'lib/libm/arch/mc68881/s_finite.S')
| -rw-r--r-- | lib/libm/arch/mc68881/s_finite.S | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/libm/arch/mc68881/s_finite.S b/lib/libm/arch/mc68881/s_finite.S new file mode 100644 index 00000000000..5cb8d4e68e5 --- /dev/null +++ b/lib/libm/arch/mc68881/s_finite.S @@ -0,0 +1,57 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * 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 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> + +;_sccsid: +;.asciz "from: @(#)support.s 5.2 (Berkeley) 5/17/90" + +RCSID("$NetBSD: s_finite.S,v 1.3 1995/05/09 02:03:31 jtc Exp $") + +| finite(x) +| returns the value TRUE if -INF < x < +INF and returns FALSE otherwise. +ENTRY(finite) + movw #0x7FF0,d0 + movw sp@(4),d1 + andw d0,d1 + cmpw d0,d1 + beq Lnotfin + moveq #1,d0 + rts +Lnotfin: + clrl d0 + rts |