73 lines
972 B
ArmAsm
73 lines
972 B
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 code is licensed to you under the terms of the GNU GPL, version 2;
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# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
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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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