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Routines |
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Used by the routine at hflip_write_row.
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| hflip_read_row | D8BF | EXX | E' = the mask byte reversed, D' = the image byte reversed | |
| D8C0 | LD C,(HL) | |||
| D8C1 | LD A,(BC) | |||
| D8C2 | LD E,A | |||
| D8C3 | INC HL | |||
| D8C4 | LD C,(HL) | |||
| D8C5 | LD A,(BC) | |||
| D8C6 | LD D,A | |||
| D8C7 | INC HL | |||
| D8C8 | PUSH DE | onto the stack, to come back last first | ||
| D8C9 | EXX | |||
| D8CA | DJNZ hflip_read_row | |||
| D8CC | LD B,C | the width again for the writing | ||
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