diff options
Diffstat (limited to 'lib/libc/ia64/string/bzero.S')
| -rw-r--r-- | lib/libc/ia64/string/bzero.S | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/lib/libc/ia64/string/bzero.S b/lib/libc/ia64/string/bzero.S deleted file mode 100644 index 0963c36..0000000 --- a/lib/libc/ia64/string/bzero.S +++ /dev/null @@ -1,81 +0,0 @@ -/*- - * Copyright (c) 2000 Doug Rabson - * 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(bzero, 2) - - cmp.le p6,p0=in1,r0 // bail if len <= 0 -(p6) br.ret.spnt.few rp - ;; - mov r14=ar.lc // save ar.lc - - cmp.ltu p6,p0=17,in1 // check for small -(p6) br.dptk.few 3f - -1: add r15=-1,in1 ;; - mov ar.lc=r15 ;; -2: st1 [in0]=r0,1 // zero one byte - br.cloop.sptk.few 2b // loop - - ;; - mov ar.lc=r14 // done - br.ret.sptk.few rp - - // Zero up to 8byte alignment - -3: tbit.nz p6,p0=in0,0 ;; -(p6) st1 [in0]=r0,1 -(p6) add in1=-1,in1 ;; - - tbit.nz p6,p0=in0,1 ;; -(p6) st2 [in0]=r0,2 -(p6) add in1=-2,in1 ;; - - tbit.nz p6,p0=in0,2 ;; -(p6) st4 [in0]=r0,4 -(p6) add in1=-4,in1 - - ;; - shr.u r15=in1,3 // word count - extr.u in1=in1,0,3 ;; // trailing bytes - cmp.eq p6,p0=r15,r0 // check for zero - cmp.ne p7,p0=in1,r0 -(p6) br.dpnt.few 1b // zero last bytes - - add r15=-1,r15 ;; - mov ar.lc=r15 ;; -4: st8 [in0]=r0,8 - br.cloop.sptk.few 4b - -(p7) br.dpnt.few 1b // zero last bytes - - ;; - mov ar.lc=r14 // done - br.ret.sptk.few rp - -END(bzero) |
