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| .org $8000 | |
| reset: | |
| lda #$ff ; set all of A register of 6522 to output | |
| sta $6003 | |
| lda #$7f ; set all but last pin of B register of 6522 to output | |
| sta $6002 | |
| lda #$01 ; initial value of output: 1 0 0 0 0 0 0 |
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