/* Set a block of memory to some byte value.

   For SPARC v7.

   Copyright (C) 1996-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by David S. Miller <davem@caip.rutgers.edu> and

                  Jakub Jelinek <jj@ultra.linux.cz>.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <sysdep.h>

	/* Store 64 bytes at (BASE + OFFSET) using value SOURCE. */

#define ZERO_BIG_BLOCK(base, offset, source)    	\

	std		source, [base + offset + 0x00]; \

	std		source, [base + offset + 0x08]; \

	std		source, [base + offset + 0x10]; \

	std		source, [base + offset + 0x18]; \

	std		source, [base + offset + 0x20]; \

	std		source, [base + offset + 0x28]; \

	std		source, [base + offset + 0x30]; \

	std		source, [base + offset + 0x38];

#define ZERO_LAST_BLOCKS(base, offset, source)		\

	std		source, [base - offset - 0x38]; \

	std		source, [base - offset - 0x30]; \

	std		source, [base - offset - 0x28]; \

	std		source, [base - offset - 0x20]; \

	std		source, [base - offset - 0x18]; \

	std		source, [base - offset - 0x10]; \

	std		source, [base - offset - 0x08]; \

	std		source, [base - offset - 0x00];

	.text

	.align 4

ENTRY(__bzero)

	b		1f

	 mov		%g0, %g3

3:	cmp		%o2, 3

	be		2f

	 stb		%g3, [%o0]

	cmp		%o2, 2

	be		2f

	 stb		%g3, [%o0 + 0x01]

	stb		%g3, [%o0 + 0x02]

2:	sub		%o2, 4, %o2

	add		%o1, %o2, %o1

	b		4f

	 sub		%o0, %o2, %o0

END(__bzero)

ENTRY(memset)

	and		%o1, 0xff, %g3

	sll		%g3, 8, %g2

	or		%g3, %g2, %g3

	sll		%g3, 16, %g2

	or		%g3, %g2, %g3

	orcc		%o2, %g0, %o1

1:	cmp		%o1, 7

	bleu		7f

	 mov		%o0, %g1

	andcc		%o0, 3, %o2

	bne		3b

4:	 andcc		%o0, 4, %g0

	be		2f

	 mov		%g3, %g2

	st		%g3, [%o0]

	sub		%o1, 4, %o1

	add		%o0, 4, %o0

2:	andcc		%o1, 0xffffff80, %o3

	be		9f

	 andcc		%o1, 0x78, %o2

4:	ZERO_BIG_BLOCK	(%o0, 0x00, %g2)

	subcc		%o3, 128, %o3

	ZERO_BIG_BLOCK	(%o0, 0x40, %g2)

	bne		4b

	 add		%o0, 128, %o0

	orcc		%o2, %g0, %g0

9:	be		6f

	 andcc		%o1, 7, %o1

	mov		%o7, %g4

101:	call		100f

	 srl		%o2, 1, %o3

	mov		%g4, %o7

	jmpl		%o4 + (20f + 64 - 101b), %g0

	 add		%o0, %o2, %o0

100:	retl

	 sub		%o7, %o3, %o4

20:	ZERO_LAST_BLOCKS(%o0, 0x48, %g2)

	ZERO_LAST_BLOCKS(%o0, 0x08, %g2)

6:	be		8f

	 andcc		%o1, 4, %g0

	be		1f

	 andcc		%o1, 2, %g0

	st		%g3, [%o0]

	add		%o0, 4, %o0

1:	be		1f

	 andcc		%o1, 1, %g0

	sth		%g3, [%o0]

	add		%o0, 2, %o0

1:	bne,a		8f

	 stb		%g3, [%o0]

8:	retl

	 mov		%g1, %o0

7:	orcc		%o1, 0, %g0

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 1]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 2]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 3]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 4]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 5]

	be		0f

	 subcc		%o1, 1, %o1

	stb		%g3, [%o0 + 6]

0:	retl

	 nop

END(memset)

libc_hidden_builtin_def (memset)

weak_alias (__bzero, bzero)