27 lines
360 B
ArmAsm
27 lines
360 B
ArmAsm
.define xset
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.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.sect .text
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!bitnr in R1
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!size (bytes) in R0
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xset:
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popl saveret, *RR14
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sra R0
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ld R2, R0
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1: push *RR14, $0
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djnz R0, 1b
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div RR0, $020 !R0: bitnr, R1: wordnr
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cp R1, R2
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jr UGE, 2f
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ldk R2, $0
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set R2, R0
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sla R1
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ld RR14(R1), R2
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3: pushl *RR14, saveret
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ret
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2: push *RR14, $ESET
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calr trp
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jr 3b
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