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Received: by minnie.vk1xwt.ampr.org with NNTP id AA417 ; Sun, 31 Jan 93 14:07:12 EST Path: sserve!manuel.anu.edu.au!munnari.oz.au!sgiblab!zaphod.mps.ohio-state.edu!howland.reston.ans.net!paladin.american.edu!news.univie.ac.at!hp4at!mcsun!sunic!dkuug!flshub!phk From: phk@data.fls.dk (P-HK/Poul-Henning Kamp) Newsgroups: comp.unix.bsd Subject: [386bsd] PATCH: libc::ldexp() Message-ID: <1993Feb1.133820.9016@data.fls.dk> Date: 1 Feb 93 13:38:20 GMT Organization: FLS Data A/S, Valby, Copenhagen, Denmark. Lines: 88 What: ===== Here is a patch which creates a new file: /usr/src/lib/libc/i386/gen/ldexp.s containing an assembler version of ldexp() instead of inline assembler in C. Having applied this patch you can remove the old "c" source-file: /usr/src/lib/libc/i386/gen/ldexp.c No other changes need to be made. Why: ==== gcc-2.3.3 can't compile ldexp.c. BUT, BUT, BUT, it actually improved the quality of printf() !, two of the four errors from enquire.c disappeared. Please Nate or <whoever_now_in_charge> add this to the patch-kit. Happy hacking, Poul-Henning *** /dev/null Sat Jan 30 23:47:35 1993 --- usr/src/lib/libc/i386/gen/ldexp.s Sun Jan 31 12:00:01 1993 *************** *** 0 **** --- 1,54 ---- + /*- + * Copyright (c) 1990 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. + */ + + /* + * Assebler version by phk@data.fls.dk Poul-Henning Kamp + * works with gcc2 (since it's not compiled by it :-) + * enquire.c even seems to work better ???? + */ + #if defined(LIBC_SCCS) && !defined(lint) + .asciz "@(#)ldexp.s 5.2 (Berkeley) 12/17/90" + #endif /* LIBC_SCCS and not lint */ + + #include "DEFS.h" + + ENTRY(ldexp) + fildl 12(%esp) + fldl 4(%esp) + fscale + fxch %st(1) + fstpl -8(%esp) /* How do I pop a value ??? */ + ret -- phk@data.fls.dk || The seven hazards of computing: Poul-Henning Kamp || The hardware, the software, the supplier FLS DATA A/S, Denmark || the application, the user, the operator Phone: (+45) 36 18 12 35 || and the data. Stan Kelly-Bootle