diff options
Diffstat (limited to 'sys/lib/libkern/arch/sh/movstr_i4.S')
| -rw-r--r-- | sys/lib/libkern/arch/sh/movstr_i4.S | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sys/lib/libkern/arch/sh/movstr_i4.S b/sys/lib/libkern/arch/sh/movstr_i4.S new file mode 100644 index 00000000000..835801d933e --- /dev/null +++ b/sys/lib/libkern/arch/sh/movstr_i4.S @@ -0,0 +1,74 @@ +/* $NetBSD: movstr_i4.S,v 1.5 2006/05/22 21:34:08 uwe Exp $ */ + +/*- + * Copyright (C) 2002 SHIMIZU Ryo. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <machine/asm.h> + + +NENTRY(__movstr_i4_odd) + add #-8,r4 + nop +odd_loop: + mov.l @r5+,r0 + add #8,r4 + mov.l @r5+,r1 + dt r6 + mov.l r0,@(0,r4) + bf/s odd_loop + mov.l r1,@(4,r4) + + mov.l @r5+,r0 + mov.l @r5+,r1 + mov.l @r5+,r2 + mov.l r0,@(8,r4) + mov.l r1,@(12,r4) + rts + mov.l r2,@(16,r4) + + +NENTRY(__movstr_i4_even) + add #-8,r4 + nop +even_loop: + mov.l @r5+,r0 + add #8,r4 + mov.l @r5+,r1 + dt r6 + mov.l r0,@(0,r4) + bf/s even_loop + mov.l r1,@(4,r4) + + mov.l @r5+,r0 + mov.l @r5+,r1 + mov.l r0,@(8,r4) + rts + mov.l r1,@(12,r4) + + +/* gcc4 uses movmem, older versions use movstr */ +_C_LABEL(__movmem_i4_odd) = _C_LABEL(__movstr_i4_odd) +_C_LABEL(__movmem_i4_even) = _C_LABEL(__movstr_i4_even) |