56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
;.include "system/system.h65"
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;.segment "CODE"
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;;********************************************************************************
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;; Interrupts
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;;********************************************************************************
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;nmi:
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; rti
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;irq:
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; .repeat 20
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; .endrepeat
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; rti
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;;********************************************************************************
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;; Reset sequence
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;;********************************************************************************
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;reset:
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; sei
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; ; setup io2 bank a 1-3
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; lda #%11111111
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; sta IO1 + IO_DDRA
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; sta IO1 + IO_DDRB
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;@loop:
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; lda #%00000000
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; sta IO1 + IO_RA
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; .repeat 3
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; nop
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; .endrepeat
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; lda #%11111111
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; sta IO1 + IO_RA
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; .repeat 15
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; nop
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; .endrepeat
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; lda #%00000000
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; sta IO1 + IO_RB
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; .repeat 5
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; nop
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; .endrepeat
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; lda #%11111111
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; sta IO1 + IO_RB
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; .repeat 10
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; nop
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; .endrepeat
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; bra @loop
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;;********************************************************************************
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;; reset vector
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;;********************************************************************************
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;.segment "RESET_VECTOR"
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; .word nmi
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; .word reset
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; .word irq
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