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Routines |
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Used by the routine at DrawTownPanel.
Draws an image of thirty-two by eight pixels, as four bytes for each line, with the bottom line first. The addresses of the images are in PosterImagePointers.
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Find the image.
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| DrawPosterImage | D400 | EX DE,HL | Keep the screen address in DE. | ||||||||
| D401 | LD BC,$6AC6 | Point BC at PosterImagePointers. | |||||||||
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Find the address of the image.
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| D404 | CALL GetTableEntry | Call GetTableEntry. | |||||||||
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Read the image with the stack.
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| D407 | LD ($A21D),SP | Set SavedStackPointer. | |||||||||
| D40B | LD SP,HL | Point the stack pointer at the image. | |||||||||
| D40C | EX DE,HL | Put the screen address in HL. | |||||||||
| D40D | LD B,$08 | Set a count of 08 lines. | |||||||||
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Draw a line.
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| DrawPosterImage_Line | D40F | POP DE | Draw the first two bytes of the line. | ||||||||
| D410 | LD (HL),E | ||||||||||
| D411 | INC HL | ||||||||||
| D412 | LD (HL),D | ||||||||||
| D413 | INC HL | ||||||||||
| D414 | POP DE | Draw the next two bytes of the line. | |||||||||
| D415 | LD (HL),E | ||||||||||
| D416 | INC HL | ||||||||||
| D417 | LD (HL),D | ||||||||||
| D418 | LD DE,$FEFD | Move up one line, and back to the first byte. | |||||||||
| D41B | ADD HL,DE | ||||||||||
| D41C | DJNZ DrawPosterImage_Line | Jump to DrawPosterImage_Line if there are any left. | |||||||||
| D41E | LD SP,($A21D) | Restore the stack pointer. | |||||||||
| D422 | RET | Return. | |||||||||
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