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/* This is a generated file. DO NOT EDIT. */
/*
* Generated from:
*
* OpenBSD: bcopy.m4
*/
/*
* Copyright (c) 1999,2004 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#undef _LOCORE
#define _LOCORE
#include <machine/asm.h>
#include <machine/frame.h>
LEAF_ENTRY(bcopy)
copy %arg0, %ret0
copy %arg1, %arg0
copy %ret0, %arg1
ALTENTRY(memmove)
cmpb,*>,n %arg0, %arg1, $bcopy.reverse
ALTENTRY(memcpy)
copy %arg0, %ret0
cmpib,*>=,n 15, %arg2, $bcopy_f.byte
extrd,u %arg1, 63, 2, %r20
extrd,u %arg0, 63, 2, %r19
add %arg2, %r19, %arg2
cmpb,*<> %r20, %r19, $bcopy_f.unaligned
depd %r0, 63, 2, %arg1
addi -16, %arg2, %arg2
$bcopy_f.loop16a
ldw 32(%sr0, %arg1), %r0
ldw,ma 4(%sr0, %arg1), %r22
ldw,ma 4(%sr0, %arg1), %r21
ldw,ma 4(%sr0, %arg1), %r20
ldw,ma 4(%sr0, %arg1), %r19
stby,b,m %r22, 4(%sr0, %arg0)
stw,ma %r21, 4(%sr0, %arg0)
stw,ma %r20, 4(%sr0, %arg0)
addib,*>= -16, %arg2, $bcopy_f.loop16a
stw,ma %r19, 4(%sr0, %arg0)
addib,*<,n 12, %arg2, $bcopy_f.cleanup
$bcopy_f.word
ldw,ma 4(%sr0, %arg1), %r22
addib,*>= -4, %arg2, $bcopy_f.word
stw,ma %r22, 4(%sr0, %arg0)
$bcopy_f.cleanup
addib,*=,n 4, %arg2, $bcopy_f.done
ldw 0(%sr0, %arg1), %r22
add %arg0, %arg2, %arg0
b $bcopy_f.done
stby,e %r22, 0(%sr0, %arg0)
$bcopy_f.unaligned
sub,*>= %r19, %r20, %r21
ldw,ma 4(%sr0, %arg1), %ret1
depd,z %r21, 60, 61, %r22
mtsar %r22
addi -16, %arg2, %arg2
$bcopy_f.loop16u
ldw 32(%sr0, %arg1), %r0
ldw,ma 4(%sr0, %arg1), %r22
ldw,ma 4(%sr0, %arg1), %r21
ldw,ma 4(%sr0, %arg1), %r20
ldw,ma 4(%sr0, %arg1), %r19
shrpw %ret1, %r22, %sar, %r31
stby,b,m %r31, 4(%sr0, %arg0)
shrpw %r22, %r21, %sar, %r31
stw,ma %r31, 4(%sr0, %arg0)
shrpw %r21, %r20, %sar, %r31
stw,ma %r31, 4(%sr0, %arg0)
shrpw %r20, %r19, %sar, %r31
stw,ma %r31, 4(%sr0, %arg0)
addib,*>= -16, %arg2, $bcopy_f.loop16u
copy %r19, %ret1
addib,*<,n 12, %arg2, $bcopy_f.cleanup_un
$bcopy_f.word_un
ldw,ma 4(%sr0, %arg1), %r22
shrpw %ret1, %r22, %sar, %r21
addib,*< -4, %arg2, $bcopy_f.cleanup1_un
stw,ma %r21, 4(%sr0, %arg0)
ldw,ma 4(%sr0, %arg1), %ret1
shrpw %r22, %ret1, %sar, %r21
addib,*>= -4, %arg2, $bcopy_f.word_un
stw,ma %r21, 4(%sr0, %arg0)
$bcopy_f.cleanup_un
addib,*<=,n 4, %arg2, $bcopy_f.done
mfctl %sar, %r19
add %arg0, %arg2, %arg0
extrd,u %r19, 60, 2, %r19
sub,*<= %arg2, %r19, %r0
ldw,ma 4(%sr0, %arg1), %r22
shrpw %ret1, %r22, %sar, %r21
b $bcopy_f.done
stby,e %r21, 0(%sr0, %arg0)
$bcopy_f.cleanup1_un
b $bcopy_f.cleanup_un
copy %r22, %ret1
$bcopy_f.byte
cmpb,*>=,n %r0, %arg2, $bcopy_f.done
$bcopy_f.byte_loop
ldbs,ma 1(%sr0, %arg1), %r22
addib,*<> -1, %arg2, $bcopy_f.byte_loop
stbs,ma %r22, 1(%sr0, %arg0)
$bcopy_f.done
bv %r0(%rp)
nop
$bcopy.reverse
copy %arg0, %ret0
add %arg1, %arg2, %arg1
add %arg0, %arg2, %arg0
$bcopy_r.byte
cmpb,*>=,n %r0, %arg2, $bcopy_r.done
$bcopy_r.byte_loop
ldbs,mb -1(%sr0, %arg1), %r22
addib,*<> -1, %arg2, $bcopy_r.byte_loop
stbs,mb %r22, -1(%sr0, %arg0)
$bcopy_r.done
bv %r0(%rp)
nop
EXIT(bcopy)
.end
|
