31 lines
444 B
ArmAsm
31 lines
444 B
ArmAsm
#
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.sect .text; .sect .rom; .sect .data; .sect .bss
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/* Does a block move of words between non-overlapping buffers.
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* Stack: ( src dst len -- )
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*/
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.sect .text
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.define .bls4
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.bls4:
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lw r4, 0(sp) ! r4=len
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lw r5, 4(sp) ! r5=dst
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lw r6, 8(sp) ! r6=src
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addiu sp, sp, 12
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srl r4, r4, 2 ! convert len to words
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1:
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beq r4, zero, 2f
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nop
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lw at, 0(r6)
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sw at, 0(r5)
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addiu r6, r6, 4
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addiu r5, r5, 4
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addiu r4, r4, -1
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b 1b
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nop
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2:
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jr ra
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nop
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