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Routines |
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Used by the routine at SetUserDefinedKeys.
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| PrintUserDefinedKey | D20D | PUSH DE | Stash the key position messaging pointer on the stack. | |||||||
| D20E | LD E,A | Store the current position in an offset... | ||||||||
| D20F | LD A,($D20C) | Call InverseOn to highlight this key if it's the one currently in focus (i.e. if *Current_UserDefinedKey is equal to the position currently being printed). | ||||||||
| D212 | CP E | |||||||||
| D213 | CALL Z,InverseOn | |||||||||
| D216 | LD D,$00 | D=00 (to finish creating the offset for the current key position using DE). | ||||||||
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Point to the key in the user-defined key table relating to the requested key position.
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| D218 | LD HL,$5BEB | HL=UserDefinedKeys_Left+DE. | ||||||||
| D21B | ADD HL,DE | |||||||||
| D21C | EX DE,HL | Exchange the DE and HL registers. | ||||||||
| D21D | LD A,(DE) | Fetch the key for this position and store it in DE as an offset. | ||||||||
| D21E | LD E,A | |||||||||
| D21F | LD D,$00 | |||||||||
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Point to the relevant key in the keymap table.
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| D221 | LD HL,$D22C | HL=Table_UserDefinedKeyMap+DE. | ||||||||
| D224 | ADD HL,DE | |||||||||
| D225 | LD A,(HL) | Fetch the key value from the keymap table and store it in A. | ||||||||
| D226 | RST $10 | Print it to the screen using RST 10. | ||||||||
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Print the "action" messaging to signify what this key is for, e.g. "LEFT", "RIGHT", etc...
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| D227 | POP DE | Restore the key position messaging pointer from the stack. | ||||||||
| D228 | JP PrintString | Jump to PrintString. | ||||||||
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