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Routines |
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Used by the routine at HandlerUserInput.
Print the input prompt.
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| PrintInputPrompt | ACEA | LD HL,$5080 | Point at the prompt graphic in the display file. | |
| ACED | LD DE,$0100 | Set the increment in DE for the next screen line. | ||
| ACF0 | LD B,$08 | Scan the eight pixel rows of the prompt cell. | ||
| ACF2 | XOR A | |||
| PrintInputPrompt_Loop | ACF3 | OR (HL) | Collect the pixels of this row of the prompt cell. | |
| ACF4 | ADD HL,DE | Move down one line. | ||
| ACF5 | DJNZ PrintInputPrompt_Loop | Repeat for all eight pixel rows, so A is non-zero if anything is already drawn in the cell. | ||
| ACF7 | OR A | Jump to PrintPrompt if A is zero. | ||
| ACF8 | JR Z,PrintPrompt | |||
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Force a newline to be "printed".
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| ACFA | LD A,$0D | Use the ENTER key code. | ||
| ACFC | CALL PrintCharacter | Call PrintCharacter to print the character. | ||
| PrintPrompt | ACFF | LD HL,$AF4D | Print "> ". | |
| AD02 | CALL PrintString | |||
| AD05 | RET | Return. | ||
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View the equivalent code in;
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