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author | bde <bde@FreeBSD.org> | 1997-07-03 03:28:27 +0000 |
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committer | bde <bde@FreeBSD.org> | 1997-07-03 03:28:27 +0000 |
commit | c800b77e17a9db61b5cfedb8ada17ba33ba97d40 (patch) | |
tree | 90ddf44d2360a352ad20e3859f2a1e7fb8011ca1 /lib/libc/i386/gen/fixunsdfsi.s | |
parent | 73643318c3a441ade17ebffbe29ea00889ccbad3 (diff) | |
parent | e2f0a0f35c8c3ecbae359c67f0d5b3aac5ce43dc (diff) | |
download | FreeBSD-src-c800b77e17a9db61b5cfedb8ada17ba33ba97d40.zip FreeBSD-src-c800b77e17a9db61b5cfedb8ada17ba33ba97d40.tar.gz |
This commit was generated by cvs2svn to compensate for changes in r27180,
which included commits to RCS files with non-trunk default branches.
Diffstat (limited to 'lib/libc/i386/gen/fixunsdfsi.s')
-rw-r--r-- | lib/libc/i386/gen/fixunsdfsi.s | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/libc/i386/gen/fixunsdfsi.s b/lib/libc/i386/gen/fixunsdfsi.s new file mode 100644 index 0000000..7025bb6 --- /dev/null +++ b/lib/libc/i386/gen/fixunsdfsi.s @@ -0,0 +1,60 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * 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. + */ + +#if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)fixunsdfsi.s 8.1 6/4/93" +#endif /* LIBC_SCCS and not lint */ + + .globl ___fixunsdfsi +___fixunsdfsi: + fldl 4(%esp) /* argument double to accum stack */ + frndint /* create integer */ + fcoml fbiggestsigned /* bigger than biggest signed? */ + fstsw %ax + sahf + jnb 1f + + fistpl 4(%esp) + movl 4(%esp),%eax + ret + +1: fsubl fbiggestsigned /* reduce for proper conversion */ + fistpl 4(%esp) /* convert */ + movl 4(%esp),%eax + orl $0x80000000,%eax /* restore bias */ + ret + +fbiggestsigned: .double 0r2147483648.0 |