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|
define(_rcsid,``$OpenBSD: bcopy.m4,v 1.3 2007/10/13 19:26:57 kettenis Exp $'')dnl
dnl
dnl
dnl This is the source file for bcopy.S, spcopy.S
dnl
dnl
define(`versionmacro',substr(_rcsid,1,eval(len(_rcsid)-2)))dnl
dnl
/* This is a generated file. DO NOT EDIT. */
/*
* Generated from:
*
* versionmacro
*/
/*
* 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.
*/
dnl
dnl macro: L(`%arg1',`%arg2')
dnl synopsis: creates an assembly label based on args resulting in $%arg1.%arg2
dnl
define(`L', `$$1.$2')dnl
dnl
dnl
dnl
define(`STWS',`ifelse($5, `u',dnl
`ifelse($1, `22', `vshd $4, %r`$1', %r31
stbys,B,m %r31, F`'4($2, $3)',
`0', `0', `vshd %r`'incr($1), %r`$1', %r31
stws,M %r31, F`'4($2, $3)')',dnl
`0', `0',
`ifelse($1, `22',
`stbys,B`'ifelse(B, `b', `,m ', `0', `0', ` ')`'%r`$1', F`'4($2, $3)',
`0', `0', `stws,M %r`$1', F`'4($2, $3)')')')dnl
define(`STWSS', `ifelse(`$3', `22', `dnl',
`0', `0', `STWSS($1, $2, eval($3 + 1), $4, $5)')
STWS($3, $1, $2, $4, $5)dnl
')dnl
define(`LDWSS', `ifelse(`$3', `22', `dnl',
`0', `0', `LDWSS($1, $2, eval($3 + 1))')
ldws,M F`'4($1, $2), %r`'$3`'dnl
')dnl
dnl
dnl copy data in 4-words blocks
dnl
define(`hppa_blcopy',`
addi -16, $6, $6
L($1, `loop16'`$7')
ldw F 32($2, $3), %r0
ifelse(F, `-', `dnl
addi F`'4, $5, $5', `0', `0', `dnl')
LDWSS($2, $3, 19)
STWSS($4, $5, 20, `%ret1', $7)
ifelse($7, `u', `dnl
STWS(19, $4, $5, `%ret1', $7)', $7, `a', `dnl')
addib,>= -16, $6, L($1, `loop16'`$7')
ifelse($7, `a', `dnl
STWS(19, $4, $5, `%ret1', $7)dnl
', $7, `u', `dnl
copy %r19, %ret1')')dnl
dnl
dnl copy in words
dnl
define(`STWL', `addib,<,n 12, $6, L($1, cleanup)
ifelse($7, `u', ` copy %ret1, %r22', $7, `a', `dnl')
L($1, word)
ldws,M F`'4($2, $3), %r22
addib,>= -4, $6, L($1, word)
stws,M %r22, F`'4($4, $5)
L($1, cleanup)
addib,=,n 4, $6, L($1, done)
ldws 0($2, $3), %r22
add $5, $6, $5
b L($1, done)
stbys,E %r22, 0($4, $5)
')
dnl
dnl
dnl parameters:
dnl $1 name
dnl $2 source space
dnl $3 source address
dnl $4 destination space
dnl $5 destination address
dnl $6 length
dnl $7 direction
dnl
define(hppa_copy,
`dnl
dnl
dnl if direction is `-' (backwards copy), adjust src, dst
dnl
ifelse($7,`-', `add $3, $6, $3
add $5, $6, $5
define(`F', `-')dnl
define(`R', `')dnl
define(`M', `mb')dnl
define(`B', `e')dnl
define(`E', `b')dnl
',dnl ifelse
`0',`0',
`define(`F', `')dnl
define(`R', `-')dnl
define(`M', `ma')dnl
define(`B', `b')dnl
define(`E', `e')dnl
')dnl ifelse
ifelse($7,`-', `', `0',`0',
` comib,>=,n 15, $6, L($1, byte)
extru $3, 31, 2, %r20
extru $5, 31, 2, %r19
add $6, %r19, $6
comb,<> %r20, %r19, L($1, unaligned)
dep %r0, 31, 2, $3
hppa_blcopy($1, $2, $3, $4, $5, $6, `a')
STWL($1, $2, $3, $4, $5, $6, `a')dnl
L($1, unaligned)
sub,>= %r19, %r20, %r21
ldwm F`'4($2, $3), %ret1
zdep %r21, 28, 29, %r22
mtsar %r22
hppa_blcopy($1, $2, $3, $4, $5, $6, `u')
dnl STWL($1, $2, $3, $4, $5, $6, `u')
addib,<,n 12, $6, L($1, cleanup_un)
L($1, word_un)
ldws,M F`'4($2, $3), %r22
vshd %ret1, %r22, %r21
addib,< -4, $6, L($1, cleanup1_un)
stws,M %r21, F`'4($4, $5)
ldws,M F`'4($2, $3), %ret1
vshd %r22, %ret1, %r21
addib,>= -4, $6, L($1, word_un)
stws,M %r21, F`'4($4, $5)
L($1, cleanup_un)
addib,<=,n 4, $6, L($1, done)
mfctl %sar, %r19
add $5, $6, $5
extru %r19, 28, 2, %r19
sub,<= $6, %r19, %r0
ldws,M F`'4($2, $3), %r22
vshd %ret1, %r22, %r21
b L($1, done)
stbys,E %r21, 0($4, $5)
L($1, cleanup1_un)
b L($1, cleanup_un)
copy %r22, %ret1
')dnl ifelse
L($1, byte)
comb,>=,n %r0, $6, L($1, done)
L($1, byte_loop)
ldbs,M F`'1($2, $3), %r22
addib,<> -1, $6, L($1, byte_loop)
stbs,M %r22, F`'1($4, $5)
L($1, done)
')dnl
`
#undef _LOCORE
#define _LOCORE
#include <machine/asm.h>
#include <machine/frame.h>
'
ifelse(NAME, `bcopy',
`
#if defined(LIBC_SCCS)
.text
.asciz "versionmacro"
.align 4
#endif
LEAF_ENTRY(memcpy)
ALTENTRY(memmove)
copy %arg0, %r22
copy %arg1, %arg0
copy %r22, %arg1
copy %arg0, %ret0
ALTENTRY(ovbcopy)
ALTENTRY(bcopy)
comb,>,n %arg1, %arg0, L(bcopy, reverse)
hppa_copy(bcopy_f, %sr0, %arg0, %sr0, %arg1, %arg2, `+')
bv %r0(%rp)
nop
L(bcopy, reverse)
hppa_copy(bcopy_r, %sr0, %arg0, %sr0, %arg1, %arg2, `-')
bv %r0(%rp)
nop
EXIT(memcpy)
')dnl
dnl
ifelse(NAME, `spcopy',
`
#ifdef _KERNEL
#include <assym.h>
/*
* int spcopy (pa_space_t ssp, const void *src, pa_space_t dsp, void *dst,
* size_t size)
* do a space to space bcopy.
*
* assumes that spaces do not clash, otherwise we lose
*/
.import copy_on_fault, code
LEAF_ENTRY(spcopy)
sub,<> %r0, arg4, %r0
bv %r0(%rp)
nop
`
std %rp, HPPA_FRAME_RP(%sp)
ldo HPPA_FRAME_SIZE(%sp), %sp
/* setup fault handler */
mfctl %cr24, %arg1
ldd CI_CURPROC(%arg1), %r1
ldil L%copy_on_fault, %r21
ldd P_ADDR(%r20), %r2
ldo R%copy_on_fault(%r21), %r21
ldd PCB_ONFAULT+U_PCB(%r2), %r1
std %r21, PCB_ONFAULT+U_PCB(%r2)
'
mtsp %arg0, %sr1
mtsp %arg2, %sr2
copy arg4, %ret0
hppa_copy(spcopy, %sr1, %arg1, %sr2, %arg3, %ret0, `+')
mtsp %r0, %sr1
mtsp %r0, %sr2
/* reset fault handler */
std %r1, PCB_ONFAULT+U_PCB(%r2)
ldo -HPPA_FRAME_SIZE(%sp), %sp
ldd HPPA_FRAME_RP(%sp), %rp
bv %r0(%rp)
copy %r0, %ret0
EXIT(spcopy)
#endif
')dnl
.end
|
