| C64 ROM | Routines |
| Prev: ED0C | Up: Map | Next: ED21 |
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Used by the routine at EDFE.
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| ED11 | 48 | PHA | save device address | |
| ED12 | 24 94 | BIT $94 | test deferred character flag | |
| ED14 | 10 0A | BPL $ED20 | if no defered character continue | |
| ED16 | 38 | SEC | else flag EOI | |
| ED17 | 66 A3 | ROR $A3 | rotate into EOI flag byte | |
| ED19 | 20 40 ED | JSR $ED40 | Tx byte on serial bus | |
| ED1C | 46 94 | LSR $94 | clear deferred character flag | |
| ED1E | 46 A3 | LSR $A3 | clear EOI flag | |
| ED20 | 68 | PLA | restore the device address | |
| Prev: ED0C | Up: Map | Next: ED21 |