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Routines |
| Prev: B934 | Up: Map | Next: B9CA |
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Used by the routine at DispatchCharacterScript.
Saves the character record and reads the object attribute for this script display.
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| ProcessScriptDisplay | B936 | PUSH IX | Save the character record, the schedule entry and the pointer. | |
| B938 | PUSH IY | |||
| B93A | PUSH HL | |||
| B93B | LD ($B935),A | Record the result in the display. | ||
| ProcessScriptDisplay_Loop | B93E | CALL $B90E | Call B90E to read the object attribute. | |
| B941 | LD A,(IX+$07) | Jump to ProcessCharacterDisplay if byte 07 of the character record is 02. | ||
| B944 | CP $02 | |||
| B946 | JP Z,ProcessCharacterDisplay | |||
| B949 | LD A,(IX+$01) | Jump to ProcessScriptDisplay_Next if the moved marker is FF. | ||
| B94C | CP $FF | |||
| B94E | JR Z,ProcessScriptDisplay_Next | |||
| B950 | LD A,($B935) | Read the display. | ||
| B953 | LD ($B934),A | Record the result in the display flag at B934. | ||
| B956 | LD A,(IX+$02) | Read the character's room. | ||
| B959 | LD ($A01C),A | Record the result in the display flag at A01C. | ||
| B95C | LD C,(IX+$03) | Read the action flags. | ||
| B95F | LD B,(IX+$04) | Call InitialiseDisplayBuffer to initialise display buffer. | ||
| B962 | LD ($B17E),BC | |||
| B966 | CALL InitialiseDisplayBuffer | |||
| B969 | JR Z,ProcessScriptDisplay_DisplayFlagSaved | Go to ProcessScriptDisplay_DisplayFlagSaved if no room record matches. | ||
| B96B | LD IX,($B866) | Read the saved character record and the object-table pointer. | ||
| B96F | LD BC,($B17E) | |||
| B973 | LD (IX+$03),C | Store it in the action flags and store it in the attribute type. | ||
| B976 | LD (IX+$04),B | |||
| B979 | LD A,($A01C) | Store the display flag (A01C) and call CopyLinkAhead if that flag is zero. | ||
| B97C | LD (IX+$02),A | |||
| B97F | AND A | |||
| B980 | CALL Z,CopyLinkAhead | |||
| ProcessScriptDisplay_Store | B983 | LD A,$01 | Take 01. | |
| ProcessScriptDisplay_BringSavedPointer | B985 | POP HL | Restore the saved pointer, the saved schedule entry and the saved character record from the stack. | |
| B986 | POP IY | |||
| B988 | POP IX | |||
| B98A | AND A | Clear the borrow so an empty entry returns as a failed match. | ||
| B98B | RET | Return. | ||
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Read the character's room, then record the result in the saved character, then read the action flags.
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| ProcessScriptDisplay_Next | B98C | LD A,(IX+$02) | Read the character's room, then call ProcessRoomDisplayParameter to resolve the room display parameter. | |
| B98F | CALL ProcessRoomDisplayParameter | |||
| B992 | LD ($A033),A | Record the saved character. | ||
| B995 | LD A,(IX+$03) | Read the action flags, then call ProcessRoomDisplayParameter to resolve the room display parameter. | ||
| B998 | CALL ProcessRoomDisplayParameter | |||
| B99B | LD ($A034),A | Record the room display parameter. | ||
| B99E | LD A,(IX+$04) | Read the next parameter and call ProcessRoomDisplayParameter to resolve it. | ||
| B9A1 | CALL ProcessRoomDisplayParameter | |||
| B9A4 | LD ($A035),A | Store the room graphics parameter at RoomGraphicsParameter and call CopyPointerToStack. | ||
| B9A7 | CALL CopyPointerToStack | |||
| B9AA | JR ProcessScriptDisplay_Store | Jump back to ProcessScriptDisplay_Store to take 01. | ||
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Follows the link until it runs out, then clears the result.
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| ProcessScriptDisplay_FollowsLinkRuns | B9AC | CALL CopyLinkAhead | Call CopyLinkAhead and jump back to ProcessScriptDisplay_FollowsLinkRuns while it returns non-zero. | |
| B9AF | JR NZ,ProcessScriptDisplay_FollowsLinkRuns | |||
| ProcessScriptDisplay_Zero | B9B1 | XOR A | Jump back to ProcessScriptDisplay_BringSavedPointer to see whether it is zero. | |
| B9B2 | JR ProcessScriptDisplay_BringSavedPointer | |||
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Read the display flag, then take the saved character record.
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| ProcessScriptDisplay_DisplayFlagSaved | B9B4 | LD A,($A01C) | Jump to ProcessScriptDisplay_FollowsLinkRuns if the display is zero. | |
| B9B7 | AND A | |||
| B9B8 | JR Z,ProcessScriptDisplay_FollowsLinkRuns | |||
| B9BA | LD IX,($B866) | Read the saved character record and clear its location. | ||
| B9BE | LD (IX+$02),$00 | |||
| B9C2 | CALL CopyLinkAhead | Go to ProcessScriptDisplay_Zero if the link pointer is zero. | ||
| B9C5 | JR Z,ProcessScriptDisplay_Zero | |||
| B9C7 | JP ProcessScriptDisplay_Loop | Go back to ProcessScriptDisplay_Loop for the next character. | ||
| Prev: B934 | Up: Map | Next: B9CA |