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Routines |
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Copy one attribute byte across the 512 cells of the picture. Nothing calls this routine.
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| ClearRoomImage | 44391 | LD BC,512 | Set a counter in BC of 512 bytes. | |||||
| 44394 | LD HL,22528 | Point HL at the attribute buffer (22528). | ||||||
| 44397 | LD E,A | Copy the attribute byte into E. | ||||||
| ClearRoomImage_Loop | 44398 | LD (HL),E | Write the byte to the attribute buffer. | |||||
| 44399 | INC HL | Advance HL to the next cell. | ||||||
| 44400 | DEC BC | Step the picture-cell count down. | ||||||
| 44401 | LD A,B | See whether any picture cells remain. | ||||||
| 44402 | OR C | |||||||
| 44403 | JR NZ,ClearRoomImage_Loop | Branch to ClearRoomImage_Loop while cells remain. | ||||||
| 44405 | RET | Return. | ||||||
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View the equivalent code in;
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