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Routines |
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The opening bytes are data. The instructions that follow store the display pointer. A non-zero return means the script step succeeded. Reached from the script record at E508.
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| StoreResultHighByte | E510 | DEFB $57,$70,$E3,$FD,$FC,$0F,$E5 | Refresh the room from the text at E370, using the low byte of the location, the high byte of the location and otherwise continue at E50F. | |
| E517 | DEFB $0B | Run the nested character script. | ||
| E518 | DEFB $6D,$0D,$FC,$E4 | Display record read by ProcessDisplayRecord: flags 6D value 0D handler E4FC. | ||
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Run by CA64 after the display record at E518.
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| E51C | LD A,$FE | Take FE for the location value. | ||
| E51E | LD ($9FD7),A | Store it at LocationValue. | ||
| E521 | LD L,(IX+$09) | Read the text pointer at offsets 09 and 0A. | ||
| E524 | LD H,(IX+$0A) | |||
| E527 | SET 7,L | Set bit 7 of the pointer's low byte. | ||
| E529 | LD ($A02F),HL | Record the display pointer. | ||
| E52C | OR %00000001 | Reset the zero flag. | ||
| E52E | RET | Return. | ||
| E52F | DEFB $07,$07 | Display record read by ProcessDisplayRecord: flags 07 value 07. | ||
| E531 | LD A,$02 | Take 02 as the number of bytes to allocate. | ||
| E533 | CALL AllocateMemory | Call AllocateMemory to build the pointer the clock update stores. | ||
| E536 | LD HL,($9FE5) | Read the clock at 9FE5 into HL and store IX in its place. | ||
| E539 | LD ($9FE5),IX | |||
| E53D | LD (IX-$02),L | Store the low byte of the pointer in the previous record. | ||
| E540 | LD (IX-$01),H | Store the high byte of the pointer in the previous record. | ||
| E543 | LD A,($A036) | |||
| E546 | LD (IX+$00),A | Store the record's flag byte. | ||
| E549 | LD A,($A035) | Jump to StoreResultHighByte_MovedMarker if the room graphics parameter is FF. | ||
| E54C | LD B,$00 | |||
| E54E | CP $FF | |||
| E550 | JR Z,StoreResultHighByte_MovedMarker | |||
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Get character attribute with sign.
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| E552 | CALL GetRandomNumber | Call GetRandomNumber to read the signed character attribute. | ||
| E555 | LD B,A | Use the get character attribute with sign result as the count. | ||
| StoreResultHighByte_MovedMarker | E556 | LD A,($A034) | Add the count to the room display parameter and store it as the moved marker. | |
| E559 | ADD A,B | |||
| E55A | LD (IX+$01),A | |||
| E55D | OR %00000001 | Reset the zero flag. | ||
| E55F | RET | Return. | ||
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