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84 lines
1.4 KiB
ArmAsm
84 lines
1.4 KiB
ArmAsm
/*
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mini - a Free Software replacement for the Nintendo/BroadOn IOS.
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random utilities
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Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, version 2.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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.arm
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.globl memcpy32
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.globl memcpy16
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.globl memcpy8
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.globl memset32
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.globl memset16
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.globl memset8
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.text
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memcpy32:
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bics r2, #3
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bxeq lr
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1: ldr r3, [r1],#4
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str r3, [r0],#4
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subs r2, #4
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bne 1b
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bx lr
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memset32:
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bics r2, #3
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bxeq lr
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1: str r1, [r0],#4
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subs r2, #4
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bne 1b
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bx lr
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memcpy16:
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bics r2, #1
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bxeq lr
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1: ldrh r3, [r1],#2
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strh r3, [r0],#2
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subs r2, #2
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bne 1b
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bx lr
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memset16:
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bics r2, #1
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bxeq lr
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1: strh r1, [r0],#2
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subs r2, #2
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bne 1b
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bx lr
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memcpy8:
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cmp r2, #0
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bxeq lr
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1: ldrb r3, [r1],#1
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strb r3, [r0],#1
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subs r2, #1
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bne 1b
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bx lr
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memset8:
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cmp r2, #0
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bxeq lr
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1: strb r1, [r0],#1
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subs r2, #1
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bne 1b
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bx lr
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