| C64 ROM | Routines |
| Prev: EFE1 | Up: Map | Next: F028 |
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| F014 | 20 28 F0 | JSR $F028 | setup for RS232 transmit | |
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This entry point is used by the routine at F1DD.
send byte to the RS232 buffer, no setup
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| F017 | AC 9E 02 | LDY $029E | get index to Tx buffer end | |
| F01A | C8 | INY | + 1 | |
| F01B | CC 9D 02 | CPY $029D | compare with index to Tx buffer start | |
| F01E | F0 F4 | BEQ $F014 | loop while buffer full | |
| F020 | 8C 9E 02 | STY $029E | set index to Tx buffer end | |
| F023 | 88 | DEY | index to available buffer byte | |
| F024 | A5 9E | LDA $9E | read the RS232 character buffer | |
| F026 | 91 F9 | STA ($F9),Y | save the byte to the buffer | |
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