Martin Michelsen
14 lines
369 B
ArmAsm
14 lines
369 B
ArmAsm
# r3 = dest ptr
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# r4 = src ptr
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# r5 = size
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# Clobbers r3, r4, r5, ctr
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addi r5, r5, 3
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rlwinm r5, r5, 30, 2, 31 # r5 = number of words to copy
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mtctr r5
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subi r3, r3, 4 # r3 = r3 - 4 (so we can use stwu)
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subi r4, r4, 4 # r4 = r4 - 4 (so we can use lwzu)
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copy_word_again:
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lwzu r5, [r4 + 4]
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stwu [r3 + 4], r5
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bdnz copy_word_again
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