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/* This is a generated file. DO NOT EDIT. */
/*
* Generated from:
*
* OpenBSD: bcopy.m4
*/
/*
* Copyright (c) 1999 Michael Shalayeff
* 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 `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 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.
*
*/
#undef _LOCORE
#define _LOCORE
#include <machine/asm.h>
#include <machine/frame.h>
LEAF_ENTRY(memcpy)
ALTENTRY(memmove)
copy arg0, ret0
copy arg1, arg0
copy ret0, arg1
ALTENTRY(ovbcopy)
ALTENTRY(bcopy)
comb,>,n arg1, arg0, $bcopy.reverse
comib,>=,n 15, arg2, $bcopy_f.byte
extru arg0, 31, 2, t3
extru arg1, 31, 2, t4
add arg2, t4, arg2
comb,<> t3, t4, $bcopy_f.unaligned
dep r0, 31, 2, arg0
addi -16, arg2, arg2
$bcopy_f.loop16a
ldws,ma 4(sr0, arg0), t1
ldws,ma 4(sr0, arg0), t2
ldws,ma 4(sr0, arg0), t3
ldws,ma 4(sr0, arg0), t4
stbys,b,m t1, 4(sr0, arg1)
stws,ma t2, 4(sr0, arg1)
stws,ma t3, 4(sr0, arg1)
addib,>= -16, arg2, $bcopy_f.loop16a
stws,ma t4, 4(sr0, arg1)
addib,<,n 12, arg2, $bcopy_f.cleanup
$bcopy_f.word
ldws,ma 4(sr0, arg0), t1
addib,>= -4, arg2, $bcopy_f.word
stws,ma t1, 4(sr0, arg1)
$bcopy_f.cleanup
addib,=,n 4, arg2, $bcopy_f.done
ldws 0(sr0, arg0), t1
add arg1, arg2, arg1
b $bcopy_f.done
stbys,e t1, 0(sr0, arg1)
$bcopy_f.unaligned
sub,>= t4, t3, t2
ldwm 4(sr0, arg0), ret1
zdep t2, 28, 29, t1
mtsar t1
addi -16, arg2, arg2
$bcopy_f.loop16u
ldws,ma 4(sr0, arg0), t1
ldws,ma 4(sr0, arg0), t2
ldws,ma 4(sr0, arg0), t3
ldws,ma 4(sr0, arg0), t4
vshd ret1, t1, r31
stbys,b,m r31, 4(sr0, arg1)
vshd t1, t2, r31
stws,ma r31, 4(sr0, arg1)
vshd t2, t3, r31
stws,ma r31, 4(sr0, arg1)
vshd t3, t4, r31
stws,ma r31, 4(sr0, arg1)
addib,>= -16, arg2, $bcopy_f.loop16u
copy t4, ret1
addib,<,n 12, arg2, $bcopy_f.cleanup_un
$bcopy_f.word_un
ldws,ma 4(sr0, arg0), t1
vshd ret1, t1, t2
addib,< -4, arg2, $bcopy_f.cleanup1_un
stws,ma t2, 4(sr0, arg1)
ldws,ma 4(sr0, arg0), ret1
vshd t1, ret1, t2
addib,>= -4, arg2, $bcopy_f.word_un
stws,ma t2, 4(sr0, arg1)
$bcopy_f.cleanup_un
addib,<=,n 4, arg2, $bcopy_f.done
mfctl sar, t4
add arg1, arg2, arg1
extru t4, 28, 2, t4
sub,<= arg2, t4, r0
ldws,ma 4(sr0, arg0), t1
vshd ret1, t1, t2
b $bcopy_f.done
stbys,e t2, 0(sr0, arg1)
$bcopy_f.cleanup1_un
b $bcopy_f.cleanup_un
copy t1, ret1
$bcopy_f.byte
comb,>=,n r0, arg2, $bcopy_f.done
$bcopy_f.byte_loop
ldbs,ma 1(sr0, arg0), t1
addib,<> -1, arg2, $bcopy_f.byte_loop
stbs,ma t1, 1(sr0, arg1)
$bcopy_f.done
bv 0(rp)
nop
$bcopy.reverse
add arg0, arg2, arg0
add arg1, arg2, arg1
$bcopy_r.byte
comb,>=,n r0, arg2, $bcopy_r.done
$bcopy_r.byte_loop
ldbs,mb -1(sr0, arg0), t1
addib,<> -1, arg2, $bcopy_r.byte_loop
stbs,mb t1, -1(sr0, arg1)
$bcopy_r.done
bv 0(rp)
nop
EXIT(memcpy)
.end
|
