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Diffstat (limited to 'lib/libc/i386/gen/modf.S')
| -rw-r--r-- | lib/libc/i386/gen/modf.S | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/lib/libc/i386/gen/modf.S b/lib/libc/i386/gen/modf.S deleted file mode 100644 index 33c211fabbb8..000000000000 --- a/lib/libc/i386/gen/modf.S +++ /dev/null @@ -1,87 +0,0 @@ -/*- - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Sean Eric Fagan. - * - * 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. - * 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 "@(#)modf.s 5.5 (Berkeley) 3/18/91" -#endif /* LIBC_SCCS and not lint */ -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); - -/* - * modf(value, iptr): return fractional part of value, and stores the - * integral part into iptr (a pointer to double). - * - * Written by Sean Eric Fagan (sef@kithrup.COM) - * Sun Mar 11 20:27:30 PST 1990 - */ - -/* With CHOP mode on, frndint behaves as TRUNC does. Useful. */ - -ENTRY(modf) - pushl %ebp - movl %esp,%ebp - /* Check for Inf/NaN */ - movl 12(%ebp),%eax - andl $0x7fffffff,%eax - cmpl $0x7ff00000,%eax - jae 1f - /* Finite value */ - subl $16,%esp - fnstcw -12(%ebp) - movw -12(%ebp),%dx - orw $3072,%dx - movw %dx,-16(%ebp) - fldcw -16(%ebp) - fldl 8(%ebp) - frndint - fstpl -8(%ebp) - fldcw -12(%ebp) - movl 16(%ebp),%eax - movl -8(%ebp),%edx - movl -4(%ebp),%ecx - movl %edx,(%eax) - movl %ecx,4(%eax) - fldl 8(%ebp) - fsubl -8(%ebp) - leave - ret - /* Inf/NaN handling */ -1: fldl 8(%ebp) - movl 16(%ebp),%edx - fstl (%edx) - fldz - fdivp /* return +/- 0 for +/- Inf, NaN for NaN */ - leave - ret -END(modf) - - .section .note.GNU-stack,"",%progbits |