Routines
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58640: Store The Result In The High Byte
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 58632.
StoreResultHighByte 58640 DEFB 87,112,227,253,252,15,229 Refresh the room from the text at 58224, using the low byte of the location, the high byte of the location and otherwise continue at 58639.
58647 DEFB 11 Run the nested character script.
58648 DEFB 109,13,252,228 Display record read by ProcessDisplayRecord: flags 109 value 13 handler 58620.
Run by 51812 after the display record at 58648.
58652 LD A,254 Take 254 for the location value.
58654 LD (40919),A Store it at LocationValue.
58657 LD L,(IX+9) Read the text pointer at offsets 9 and 10.
58660 LD H,(IX+10)
58663 SET 7,L Set bit 7 of the pointer's low byte.
58665 LD (41007),HL Record the display pointer.
58668 OR %00000001 Reset the zero flag.
58670 RET Return.
Named from the script commands at 58454, 59186, 59205, 59217, 61098, 61236, 61444, 61568, 62138, 62163, 62207 and 62260.
58671 DEFB 7,7 Display record read by ProcessDisplayRecord: flags 7 value 7.
Run by 51812 after the display record at 58671.
58673 LD A,2 Take 2 as the number of bytes to allocate.
58675 CALL AllocateMemory Call AllocateMemory to build the pointer the clock update stores.
58678 LD HL,(40933) Read the clock at 40933 into HL and store IX in its place.
58681 LD (40933),IX
58685 LD (IX-2),L Store the low byte of the pointer in the previous record.
58688 LD (IX-1),H Store the high byte of the pointer in the previous record.
58691 LD A,(41014)
58694 LD (IX+0),A Store the record's flag byte.
58697 LD A,(41013) Jump to StoreResultHighByte_MovedMarker if the room graphics parameter is 255.
58700 LD B,0
58702 CP 255
58704 JR Z,StoreResultHighByte_MovedMarker
Get character attribute with sign.
58706 CALL GetRandomNumber Call GetRandomNumber to read the signed character attribute.
58709 LD B,A Use the get character attribute with sign result as the count.
StoreResultHighByte_MovedMarker 58710 LD A,(41012) Add the count to the room display parameter and store it as the moved marker.
58713 ADD A,B
58714 LD (IX+1),A
58717 OR %00000001 Reset the zero flag.
58719 RET Return.
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