glibc/sysdeps/sh/memcpy.S

232 lines
3.3 KiB
ArmAsm
Raw Normal View History

Update. 2000-06-12 Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Yutaka Niibe <gniibe@chroot.org> * sysdeps/sh/Dist: New file. * sysdeps/sh/Implies: New file. * sysdeps/sh/gmp-mparam.h: New file. * sysdeps/sh/init-first.c: New file. * sysdeps/sh/machine-gmon.h: New file. * sysdeps/sh/memcpy.S: New file. * sysdeps/sh/memprof.h: New file. * sysdeps/sh/memset.S: New file. * sysdeps/sh/sh3/__longjmp.S: New file. * sysdeps/sh/sh3/bits/endian.h: New file. * sysdeps/sh/sh3/bits/huge_val.h: New file. * sysdeps/sh/sh3/bits/setjmp.h: New file. * sysdeps/sh/sh3/bsd-_setjmp.S: New file. * sysdeps/sh/sh3/bsd-setjmp.S: New file. * sysdeps/sh/sh3/dl-machine.h: New file. * sysdeps/sh/sh3/elf/initfini.c: New file. * sysdeps/sh/sh3/elf/start.S: New file. * sysdeps/sh/sh3/setjmp.S: New file. * sysdeps/sh/sh3/sys/ucontext.h: New file. * sysdeps/sh/sh4/__longjmp.S: New file. * sysdeps/sh/sh4/bits/endian.h: New file. * sysdeps/sh/sh4/bits/huge_val.h: New file. * sysdeps/sh/sh4/bits/setjmp.h: New file. * sysdeps/sh/sh4/bsd-_setjmp.S: New file. * sysdeps/sh/sh4/bsd-setjmp.S: New file. * sysdeps/sh/sh4/dl-machine.h: New file. * sysdeps/sh/sh4/elf/initfini.c: New file. * sysdeps/sh/sh4/elf/start.S: New file. * sysdeps/sh/sh4/fpu/bits/fenv.h: New file. * sysdeps/sh/sh4/fpu/bits/huge_val.h: New file. * sysdeps/sh/sh4/fpu/bits/mathdef.h: New file. * sysdeps/sh/sh4/fpu/fclrexcpt.c: New file. * sysdeps/sh/sh4/fpu/fegetenv.c: New file. * sysdeps/sh/sh4/fpu/fegetround.c: New file. * sysdeps/sh/sh4/fpu/feholdexcpt.c: New file. * sysdeps/sh/sh4/fpu/fesetenv.c: New file. * sysdeps/sh/sh4/fpu/fesetround.c: New file. * sysdeps/sh/sh4/fpu/fpu_control.h: New file. * sysdeps/sh/sh4/fpu/fraiseexcpt.c: New file. * sysdeps/sh/sh4/fpu/fsetexcptflg.c: New file. * sysdeps/sh/sh4/fpu/ftestexcept.c: New file. * sysdeps/sh/sh4/fpu/libm-test-ulps: New file. * sysdeps/sh/sh4/setjmp.S: New file. * sysdeps/sh/sh4/sys/ucontext.h: New file. * sysdeps/sh/strlen.S: New file. * sysdeps/sh/sysdep.h: New file. * sysdeps/unix/sh/sysdep.S: New file. * sysdeps/unix/sh/sysdep.h: New file. * sysdeps/unix/sysv/linux/sh/Dist: New file. * sysdeps/unix/sysv/linux/sh/Makefile: New file. * sysdeps/unix/sysv/linux/sh/Versions: New file. * sysdeps/unix/sysv/linux/sh/bits/mman.h: New file. * sysdeps/unix/sysv/linux/sh/bits/resource.h: New file. * sysdeps/unix/sysv/linux/sh/brk.c: New file. * sysdeps/unix/sysv/linux/sh/chown.c: New file. * sysdeps/unix/sysv/linux/sh/clone.S: New file. * sysdeps/unix/sysv/linux/sh/fchown.c: New file. * sysdeps/unix/sysv/linux/sh/fxstat.c: New file. * sysdeps/unix/sysv/linux/sh/getegid.c: New file. * sysdeps/unix/sysv/linux/sh/geteuid.c: New file. * sysdeps/unix/sysv/linux/sh/getgroups.c: New file. * sysdeps/unix/sysv/linux/sh/getresgid.c: New file. * sysdeps/unix/sysv/linux/sh/getresuid.c: New file. * sysdeps/unix/sysv/linux/sh/getrlimit.c: New file. * sysdeps/unix/sysv/linux/sh/getrlimit64.c: New file. * sysdeps/unix/sysv/linux/sh/getuid.c: New file. * sysdeps/unix/sysv/linux/sh/lchown.c: New file. * sysdeps/unix/sysv/linux/sh/lxstat.c: New file. * sysdeps/unix/sysv/linux/sh/msgctl.c: New file. * sysdeps/unix/sysv/linux/sh/oldgetrlimit64.c: New file. * sysdeps/unix/sysv/linux/sh/pipe.S: New file. * sysdeps/unix/sysv/linux/sh/profil-counter.h: New file. * sysdeps/unix/sysv/linux/sh/semctl.c: New file. * sysdeps/unix/sysv/linux/sh/setegid.c: New file. * sysdeps/unix/sysv/linux/sh/seteuid.c: New file. * sysdeps/unix/sysv/linux/sh/setfsgid.c: New file. * sysdeps/unix/sysv/linux/sh/setfsuid.c: New file. * sysdeps/unix/sysv/linux/sh/setgid.c: New file. * sysdeps/unix/sysv/linux/sh/setgroups.c: New file. * sysdeps/unix/sysv/linux/sh/setregid.c: New file. * sysdeps/unix/sysv/linux/sh/setresgid.c: New file. * sysdeps/unix/sysv/linux/sh/setresuid.c: New file. * sysdeps/unix/sysv/linux/sh/setreuid.c: New file. * sysdeps/unix/sysv/linux/sh/setrlimit.c: New file. * sysdeps/unix/sysv/linux/sh/setuid.c: New file. * sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: New file. * sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: New file. * sysdeps/unix/sysv/linux/sh/shmctl.c: New file. * sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: New file. * sysdeps/unix/sysv/linux/sh/socket.S: New file. * sysdeps/unix/sysv/linux/sh/sys/io.h: New file. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/sh/sys/user.h: New file. * sysdeps/unix/sysv/linux/sh/syscalls.list: New file. * sysdeps/unix/sysv/linux/sh/sysdep.S: New file. * sysdeps/unix/sysv/linux/sh/sysdep.h: New file. * sysdeps/unix/sysv/linux/sh/vfork.S: New file. * sysdeps/unix/sysv/linux/sh/xstat.c: New file.
2000-06-12 20:50:37 +00:00
/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include <endian.h>
/*
* void *memcpy(void *dst, const void *src, size_t n);
* No overlap between the memory of DST and of SRC are assumed.
*/
ENTRY(memcpy)
tst r6,r6
bt/s 1f
mov r4,r0
mov #12,r1
cmp/gt r6,r1
bf 2f
0:
mov.b @r5+,r1
dt r6
mov.b r1,@r4
bf/s 0b
add #1,r4
1:
rts
nop
2:
mov.l r8,@-r15
mov.l r9,@-r15
mov r6,r2
mov.l r10,@-r15
mov.l r11,@-r15
mov.l r14,@-r15
mov r4,r11
mov r15,r14
mov r5,r0
and #1,r0
tst r0,r0
bt/s .L42
mov r5,r0
mov.b @r5+,r1
add #-1,r2
add #1,r4
mov.b r1,@r11
mov r5,r0
.L42:
and #2,r0
tst r0,r0
bt/s .L43
mov r4,r0
mov.b @r5+,r1
mov.b r1,@r4
mov.b @r5+,r1
add #1,r4
add #-2,r2
mov.b r1,@r4
add #1,r4
mov r4,r0
.L43:
and #1,r0
tst r0,r0
bf/s .L38
mov r4,r0
and #2,r0
tst r0,r0
bf/s .L7
mov r2,r0
shlr2 r0
and #3,r0
cmp/eq #2,r0
bt/s .L10
mov #2,r1
cmp/gt r1,r0
bt/s .L14
cmp/eq #3,r0
cmp/eq #1,r0
bt/s .L11
mov r0,r1
bra .L44
shll2 r1
.align 5
.L14:
bf .L8
mov.l @(8,r5),r1
mov.l r1,@(8,r4)
.L10:
mov.l @(4,r5),r1
mov.l r1,@(4,r4)
.L11:
mov.l @r5,r1
mov.l r1,@r4
.L8:
mov r0,r1
shll2 r1
.L44:
add r1,r4
add r1,r5
mov r2,r0
mov #-4,r1
shad r1,r0
mov #3,r6
bra .L37
and r2,r6
.align 5
.L18:
mov.l @r5+,r1
mov.l @r5+,r2
mov.l @r5+,r3
mov.l @r5+,r7
mov.l r1,@r4
mov.l r2,@(4,r4)
mov.l r3,@(8,r4)
mov.l r7,@(12,r4)
add #16,r4
.L37:
cmp/pl r0
bt/s .L18
add #-1,r0
mov r6,r2
.L38:
bra .L40
mov r2,r0
.align 5
.L7:
shar r0
and #3,r0
cmp/eq #2,r0
bt/s .L23
mov #2,r1
cmp/gt r1,r0
bt/s .L27
cmp/eq #3,r0
cmp/eq #1,r0
bt/s .L24
mov r0,r1
bra .L45
add r0,r1
.align 5
.L27:
bf .L21
add #4,r5
mov.w @r5,r1
add #4,r4
mov.w r1,@r4
add #-4,r5
add #-4,r4
.L23:
add #2,r5
mov.w @r5,r1
add #2,r4
mov.w r1,@r4
add #-2,r5
add #-2,r4
.L24:
mov.w @r5,r1
mov.w r1,@r4
.L21:
mov r0,r1
add r0,r1
.L45:
add r1,r4
add r1,r5
mov r2,r0
mov #-3,r1
shad r1,r0
mov #1,r10
mov r0,r1
and r2,r10
cmp/pl r1
bf/s .L29
add #-1,r0
mov r4,r9
mov r4,r8
add #4,r9
mov r4,r6
add #6,r8
add #2,r6
.L31:
mov.w @r5+,r1
mov.w @r5+,r2
mov.w @r5+,r3
mov.w @r5+,r7
mov.w r1,@r4
mov.w r2,@r6
add #8,r4
mov r0,r1
add #8,r6
mov.w r3,@r9
add #-1,r0
add #8,r9
mov.w r7,@r8
cmp/pl r1
bt/s .L31
add #8,r8
.L29:
mov r10,r2
mov r2,r0
.L40:
cmp/pl r0
bf .L34
.L35:
mov.b @r5+,r1
dt r2
mov.b r1,@r4
bf/s .L35
add #1,r4
.L34:
mov r11,r0
mov r14,r15
mov.l @r15+,r14
mov.l @r15+,r11
mov.l @r15+,r10
mov.l @r15+,r9
rts
mov.l @r15+,r8