1 files changed, 231 insertions, 0 deletions
diff --git a/sysdeps/sh/memcpy.S b/sysdeps/sh/memcpy.S
new file mode 100644
index 0000000000..18be7dc7f4
--- /dev/null
+++ b/sysdeps/sh/memcpy.S
@@ -0,0 +1,231 @@
+/* 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