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annotate target-utils/libc/memcpy.S @ 490:3d7b546c710c

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target-utils/flash-boot-test: more watchdog experimentation commands
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 21 May 2019 23:48:26 +0000
parents f4619719834f
children
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f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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1 .text
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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2 .code 32
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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3 .globl memcpy
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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4 memcpy:
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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5 1: subs r2, r2, #1
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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6 ldrcsb r3, [r1], #1
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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7 strcsb r3, [r0], #1
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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8 bhi 1b
f4619719834f target-utils/libc: our own memcpy assembly implementation
Mychaela Falconia <falcon@freecalypso.org>
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9 bx lr