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Routines |
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HL | Source (16384 or 46848) |
DE | Destination display file address (20640 or 20672) |
20709 | LD BC,32 | There are 32 bytes per row of pixels |
20712 | PUSH DE | |
20713 | LDIR | Copy 32 bytes to the display file |
20715 | LD L,B | L=0 |
20716 | POP DE | |
20717 | INC D | Point DE at the start of the next row of pixels |
20718 | INC H | Point HL at the next batch of 32 bytes to copy |
20719 | BIT 3,D | Have we copied 8 rows of bytes yet? |
20721 | JR Z,20709 | Jump back if not |
20723 | RET |
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