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Diffstat (limited to 'lib/libc/arch/mips/gen/modf.S')
| -rw-r--r-- | lib/libc/arch/mips/gen/modf.S | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/lib/libc/arch/mips/gen/modf.S b/lib/libc/arch/mips/gen/modf.S deleted file mode 100644 index 6eba37fcc17..00000000000 --- a/lib/libc/arch/mips/gen/modf.S +++ /dev/null @@ -1,71 +0,0 @@ -/*- - * Copyright (c) 1991, 1993, 1995 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Ralph Campbell. - * - * 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. 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> - -#if defined(LIBC_SCCS) - .text - .asciz "$OpenBSD: modf.S,v 1.6 2003/06/02 20:18:31 millert Exp $" -#endif /* LIBC_SCCS */ - -/* - * double modf(val, iptr) - * double val, *iptr; - * returns: xxx and n (in *iptr) where val == n.xxx - */ -LEAF(modf) - .set reorder - cfc1 t0, $31 # get the control register - li.d $f2, 4503599627370496e0 # f2 <- 2^52 - - or t1, t0, 0x3 # set rounding mode to round to zero - xor t1, t1, 0x2 # (i.e., 01) - ctc1 t1, $31 - - mov.d $f0, $f12 # f0 <- f12 - abs.d $f4, $f12 # f4 <- |f12| - c.olt.d $f4, $f2 # f4 ? < f2 - bc1f 1f # leave f0 alone if Nan, infinity - # or >=2^52 - c.eq.d $f12,$f4 # was f12 positive ? - add.d $f4,$f2,$f4 # round off to integer - bc1f 2f # No -> will have to negate result - sub.d $f0,$f4,$f2 # Remove fudge factor - j 1f # integer fraction got -2: - sub.d $f0,$f2,$f4 # Remove fudge factor and negate -1: - ctc1 t0, $31 # restore old rounding mode - s.d $f0, 0(a2) # save the integer part - sub.d $f0, $f12, $f0 # subtract val - integer part - j ra -END(modf) |