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Routines |
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Used by the routines at UpdatePanel and GameOver.
Prints a line of text, which starts with its attribute, using the ASCII font at 24968. The last character of the text has bit 7 set. Each character cell has its attribute set as well.
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Point at the ASCII font and fetch the attribute from the text.
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| PrintTextStandardFont | 48049 | PUSH HL | Stash the pixel position on the stack. | |||||||
| 48050 | LD HL,24968 | Point HL at 24968. | ||||||||
| 48053 | LD (23335),HL | Set FontPointer. | ||||||||
| 48056 | POP BC | Copy the pixel position to BC (using the stack). | ||||||||
| 48057 | PUSH BC | |||||||||
| 48058 | CALL CalculateBufferAddress | Call CalculateBufferAddress. | ||||||||
| 48061 | LD L,C | Copy it to HL. | ||||||||
| 48062 | LD H,B | |||||||||
| 48063 | LD A,(DE) | Fetch the attribute of the text. | ||||||||
| 48064 | EX AF,AF' | Keep the attribute in AF'. | ||||||||
| 48065 | INC DE | Move on to the first character. | ||||||||
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This entry point is used by the routine at PrintTextSingleColour.
Find the attribute address.
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| PrintTextStandardFont_PrintLine | 48066 | EXX | Switch to the shadow registers. | |||||||
| 48067 | POP HL | Fetch the pixel position. | ||||||||
| 48068 | PUSH DE | Stash the address of the text on the stack. | ||||||||
| 48069 | CALL CalculateAttributeAddress | Call CalculateAttributeAddress. | ||||||||
| 48072 | LD L,E | Copy it to HL. | ||||||||
| 48073 | LD H,D | |||||||||
| 48074 | POP DE | Restore the address of the text from the stack. | ||||||||
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Print each character and set its attribute.
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| PrintTextStandardFont_NextCharacter | 48075 | EXX | Switch back to the main registers. | |||||||
| 48076 | LD A,(DE) | Fetch a character of the text. | ||||||||
| 48077 | BIT 7,A | Jump to PrintTextStandardFont_LastCharacter if it is the last. | ||||||||
| 48079 | JR NZ,PrintTextStandardFont_LastCharacter | |||||||||
| 48081 | PUSH DE | Stash the address of the text on the stack. | ||||||||
| 48082 | CALL PrintCharacter | Call PrintCharacter. | ||||||||
| 48085 | POP DE | Restore the address of the text from the stack. | ||||||||
| 48086 | INC DE | Move on to the next character. | ||||||||
| 48087 | EXX | Switch to the shadow registers. | ||||||||
| 48088 | EX AF,AF' | Fetch the attribute. | ||||||||
| 48089 | LD (HL),A | Set the attribute of the cell. | ||||||||
| 48090 | INC L | Move on to the next cell. | ||||||||
| 48091 | EX AF,AF' | Keep the attribute in AF'. | ||||||||
| 48092 | JR PrintTextStandardFont_NextCharacter | Jump to PrintTextStandardFont_NextCharacter. | ||||||||
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Print the last character.
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| PrintTextStandardFont_LastCharacter | 48094 | AND %01111111 | Keep only bits 0 to 6. | |||||||
| 48096 | PUSH DE | Stash the address of the text on the stack. | ||||||||
| 48097 | CALL PrintCharacter | Call PrintCharacter. | ||||||||
| 48100 | POP DE | Restore the address of the text from the stack. | ||||||||
| 48101 | INC DE | Move on past the text. | ||||||||
| 48102 | EXX | Switch to the shadow registers. | ||||||||
| 48103 | EX AF,AF' | Fetch the attribute. | ||||||||
| 48104 | LD (HL),A | Set the attribute of the last cell. | ||||||||
| 48105 | EXX | Switch back to the main registers. | ||||||||
| 48106 | RET | Return. | ||||||||
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View the equivalent code in;
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| Prev: 48029 | Up: Map | Next: 48107 |