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Routines |
| Prev: 35782 | Up: Map | Next: 35819 |
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Used by the routine at 55768.
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| 35790 | LD HL,1222 | Load HL with bytecodes for instruction ADD A,4 | ||
| 35793 | LD DE,0 | Load D with 0 and E with 0 | ||
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This entry point is used by the routine at 35782.
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| 35796 | CALL 35819 | Load A with current border colour | ||
| 35799 | LD (35811),HL | Set instruction at 35811 to ADD A,4 or ADD A,32 depending upon value in HL | ||
| 35802 | OUT (254),A | Set current border colour and reset speaker state | ||
| 35804 | XOR 16 | Flip "speaker" bit | ||
| 35806 | LD B,E | Copy E into B | ||
| 35807 | DJNZ 35807 | Delay for period determined by B | ||
| 35809 | EX AF,AF' | Switch AF and AF' | ||
| 35810 | LD A,E | Copy E into A | ||
| 35811 | XOR 128 | Change E (delay constant)... | ||
| 35813 | LD E,A | ... | ||
| 35814 | EX AF,AF' | Switch AF and AF' again | ||
| 35815 | DEC D | Decrease D (initially zero)... | ||
| 35816 | JR NZ,35802 | ...and repeat loop (256 times) | ||
| 35818 | RET | Return | ||
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