ELITE SERIES USER MANUAL | THEORY OF OPERATION | |
LDA | #DSTTRK |
|
ASL | A |
|
STA | TEMP1 |
|
LDA | #SRCTRK |
|
ASL | A |
|
LOOP: |
|
|
CMP | TEMP 1 |
|
BEQ | DONE |
|
BCS | MOVOUT |
|
ADC | #1 |
|
BCC | MOVE |
|
MOVOUT: |
|
|
SBC | #1 |
|
MOVE: |
|
|
PHA |
|
|
AND | #$03 |
|
ASL |
|
|
STA | TEMP2 |
|
TXA |
|
|
ORA | TEMP2 |
|
TAY |
|
|
LDA | $C080,Y |
|
JSR | DELAY |
|
PLA |
|
|
TAY |
|
|
LDA | $C080,Y |
|
JSR | DELAY |
|
PLA |
|
|
JMP | LOOP |
|
DONE: |
|
|
<SEEK FINISHED>
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