diff options
author | das <das@FreeBSD.org> | 2005-01-11 23:10:53 +0000 |
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committer | das <das@FreeBSD.org> | 2005-01-11 23:10:53 +0000 |
commit | 14264501406dc382a32b3940819e53b9839c1833 (patch) | |
tree | 0db16a54e04d7a9f1f9740b3975153c6d2b6e29a /lib | |
parent | 850b1bf882dda1298ac5c7bfa167c553c67b6a63 (diff) | |
download | FreeBSD-src-14264501406dc382a32b3940819e53b9839c1833.zip FreeBSD-src-14264501406dc382a32b3940819e53b9839c1833.tar.gz |
Faster lrint() and llrint() implementations for x86.
Diffstat (limited to 'lib')
-rw-r--r-- | lib/msun/i387/s_llrint.S | 36 | ||||
-rw-r--r-- | lib/msun/i387/s_lrint.S | 35 |
2 files changed, 71 insertions, 0 deletions
diff --git a/lib/msun/i387/s_llrint.S b/lib/msun/i387/s_llrint.S new file mode 100644 index 0000000..1b8a638 --- /dev/null +++ b/lib/msun/i387/s_llrint.S @@ -0,0 +1,36 @@ +/*- + * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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> +__FBSDID("$FreeBSD$"); + +ENTRY(llrint) + fldl 4(%esp) + subl $8,%esp + fistpll (%esp) + popl %eax + popl %edx + ret diff --git a/lib/msun/i387/s_lrint.S b/lib/msun/i387/s_lrint.S new file mode 100644 index 0000000..82269c8 --- /dev/null +++ b/lib/msun/i387/s_lrint.S @@ -0,0 +1,35 @@ +/*- + * Copyright (c) 2005 David Schultz <das@FreeBSD.ORG> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + +ENTRY(lrint) + fldl 4(%esp) + subl $4,%esp + fistpl (%esp) + popl %eax + ret |