Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Remove unused m68k/bcopy.s.

Browse Source 
(src/common/lib/libc/arch/m68k/string/bcopy.S in libkern is enough)
This commit is contained in:
tsutsui 2007-05-21 16:54:00 +00:00
parent f8eda28885
commit 835288d097
2 changed files with 1 additions and 114 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sys/arch/m68k/conf/files.m68k
View File

@ -1,11 +1,10 @@
# $NetBSD: files.m68k,v 1.39 2007/05/21 16:51:13 tsutsui Exp $
# $NetBSD: files.m68k,v 1.40 2007/05/21 16:54:00 tsutsui Exp $
#
defflag opt_fpsp.h FPSP
defflag FPU_EMULATE
defflag PMAP_DEBUG
file arch/m68k/m68k/bcopy.s
file arch/m68k/m68k/copy.s
file arch/m68k/m68k/copypage.s
file arch/m68k/m68k/db_disasm.c ddb

112
sys/arch/m68k/m68k/bcopy.s
View File

@ -1,112 +0,0 @@
/* $NetBSD: bcopy.s,v 1.6 2005/12/11 12:17:59 christos Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
*/
/*
* This is based on: src/lib/libc/arch/m68k/string/bcopy.S
* identified as: @(#)bcopy.s 5.1 (Berkeley) 5/12/90
*/
#include <machine/asm.h>
.file "bcopy.s"
.text
/*
* bcopy(from, to, len)
*
* Works for counts up to 128K.
*/
ENTRY(bcopy)
movl %sp@(12),%d0 | get count
jeq Lbccpyexit | if zero, return
movl %sp@(4),%a0 | src address
movl %sp@(8),%a1 | dest address
Lbcdocopy:
cmpl %a1,%a0 | src before dest?
jlt Lbccpyback | yes, copy backwards (avoids overlap)
movl %a0,%d1
btst #0,%d1 | src address odd?
jeq Lbccfeven | no, go check dest
movb %a0@+,%a1@+ | yes, copy a byte
subql #1,%d0 | update count
jeq Lbccpyexit | exit if done
Lbccfeven:
movl %a1,%d1
btst #0,%d1 | dest address odd?
jne Lbccfbyte | yes, must copy by bytes
movl %d0,%d1 | no, get count
lsrl #2,%d1 | convert to longwords
jeq Lbccfbyte | no longwords, copy bytes
subql #1,%d1 | set up for dbf
Lbccflloop:
movl %a0@+,%a1@+ | copy longwords
dbf %d1,Lbccflloop | til done
andl #3,%d0 | get remaining count
jeq Lbccpyexit | done if none
Lbccfbyte:
subql #1,%d0 | set up for dbf
Lbccfbloop:
movb %a0@+,%a1@+ | copy bytes
dbf %d0,Lbccfbloop | til done
Lbccpyexit:
rts
Lbccpyback:
addl %d0,%a0 | add count to src
addl %d0,%a1 | add count to dest
movl %a0,%d1
btst #0,%d1 | src address odd?
jeq Lbccbeven | no, go check dest
movb %a0@-,%a1@- | yes, copy a byte
subql #1,%d0 | update count
jeq Lbccpyexit | exit if done
Lbccbeven:
movl %a1,%d1
btst #0,%d1 | dest address odd?
jne Lbccbbyte | yes, must copy by bytes
movl %d0,%d1 | no, get count
lsrl #2,%d1 | convert to longwords
jeq Lbccbbyte | no longwords, copy bytes
subql #1,%d1 | set up for dbf
Lbccblloop:
movl %a0@-,%a1@- | copy longwords
dbf %d1,Lbccblloop | til done
andl #3,%d0 | get remaining count
jeq Lbccpyexit | done if none
Lbccbbyte:
subql #1,%d0 | set up for dbf
Lbccbbloop:
movb %a0@-,%a1@- | copy bytes
dbf %d0,Lbccbbloop | til done
rts