24 lines
387 B
ArmAsm
24 lines
387 B
ArmAsm
.define Zrl, Zro
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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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! The subroutine Zrl makes a local zero which offset is to big.
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! The offset of the local is in registerpair AX.
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! The subroutine Zro is used if the address is already in zeropage.
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Zrl:
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jsr Locaddr ! get address of local
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Zro:
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lda #0
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tay
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sta (ADDR),y ! lowbyte = 0
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iny
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sta (ADDR),y ! highbyte = 0
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rts
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