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Routines |
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Used by the routine at 45999.
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| 46218 | INC IX | Advance IX to first parameter byte in graphic layout data | ||||||||
| 46220 | SUB 236 | Subtract 236 to get zero-based index of required instruction | ||||||||
| 46222 | ADD A,A | Load BC with double index of graphic layout data instruction | ||||||||
| 46223 | LD C,A | |||||||||
| 46224 | LD B,0 | |||||||||
| 46226 | PUSH HL | Store HL | ||||||||
| 46227 | LD HL,46244 | Load HL with start address of table of addresses of graphic layout data handling routines | ||||||||
| 46230 | ADD HL,BC | Add doubled instruction index as offset to HL to point to address of required routine | ||||||||
| 46231 | LD A,(HL) | Modify JP instruction at 46241 with this address | ||||||||
| 46232 | LD (46242),A | |||||||||
| 46235 | INC HL | |||||||||
| 46236 | LD A,(HL) | |||||||||
| 46237 | LD (46243),A | |||||||||
| 46240 | POP HL | Restore HL | ||||||||
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The operand of the instruction at 46241 represents the addresses of the required graphic layout data handling routine. This is modified by the instructions at 46232 and 46237.
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| 46241 | JP 0 | Jump to appropriate instruction handling routine | ||||||||
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