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Routines |
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Used by the routine at HandlerUserInput.
Print the input prompt.
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| PrintInputPrompt | 44266 | LD HL,20608 | Point at the prompt graphic in the display file. | |
| 44269 | LD DE,256 | Set the increment in DE for the next screen line. | ||
| 44272 | LD B,8 | Scan the eight pixel rows of the prompt cell. | ||
| 44274 | XOR A | |||
| PrintInputPrompt_Loop | 44275 | OR (HL) | Collect the pixels of this row of the prompt cell. | |
| 44276 | ADD HL,DE | Move down one line. | ||
| 44277 | DJNZ PrintInputPrompt_Loop | Repeat for all eight pixel rows, so A is non-zero if anything is already drawn in the cell. | ||
| 44279 | OR A | Jump to PrintPrompt if A is zero. | ||
| 44280 | JR Z,PrintPrompt | |||
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Force a newline to be "printed".
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| 44282 | LD A,13 | Use the ENTER key code. | ||
| 44284 | CALL PrintCharacter | Call PrintCharacter to print the character. | ||
| PrintPrompt | 44287 | LD HL,44877 | Print "> ". | |
| 44290 | CALL PrintString | |||
| 44293 | RET | Return. | ||
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View the equivalent code in;
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