C64 ROM | Routines |
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EE8E | AD 00 DD | LDA $DD00 | read VIA 2 DRA, serial port and video address | |
EE91 | 09 10 | ORA #%00010000 | mask xxx1 xxxx, set serial clock out low | |
EE93 | 8D 00 DD | STA $DD00 | save VIA 2 DRA, serial port and video address | |
EE96 | 60 | RTS |
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