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Routines |
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Bit 6 of port $FB is low when a ZX Printer is attached; only then is TO_PRINTER set. NOPRINT, at WORD_NOPRINT, clears it. Both go back to the parser for the next word at SPECIAL_WORD_DONE.
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| PRINTER_ON | 82A5 | IN A,($FB) | No printer: nothing changes | |
| 82A7 | BIT 6,A | |||
| 82A9 | JR NZ,SPECIAL_WORD_DONE | |||
| 82AB | LD A,$01 | Copy to the printer from now on | ||
| 82AD | JR SET_TO_PRINTER | |||
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