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Routines |
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Unlinks the next display record and clears the pointer left in the previous entry.
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| UnlinkNextDisplayRecord | B5B6 | LD ($A01B),A | Store it in the initialised flag and read the next display link. | |
| B5B9 | LD IX,($9FF2) | |||
| B5BD | LD ($9FF0),IX | Store that pointer in the first display link. | ||
| B5C1 | LD L,(IX-$02) | Read the pointer saved ahead of this record. | ||
| B5C4 | LD H,(IX-$01) | |||
| B5C7 | LD ($9FF2),HL | Store the pointer in the next display link. | ||
| B5CA | LD (IX-$02),$00 | Clear the pointer in the previous display entry. | ||
| B5CE | LD (IX-$01),$00 | |||
| B5D2 | RET | Return. | ||
| B5D3 | LD A,($B16E) | Jump ahead to UnlinkNextDisplayRecord_ClearPointer if bit 0 of display flag (B16E) is clear. | ||
| B5D6 | BIT 0,A | |||
| B5D8 | JR Z,UnlinkNextDisplayRecord_ClearPointer | |||
| B5DA | LD A,($B183) | Jump ahead to UnlinkNextDisplayRecord_ReadNext to check flag and set display parameter. | ||
| B5DD | LD HL,$B178 | |||
| B5E0 | JR UnlinkNextDisplayRecord_ReadNext | |||
| B5E2 | LD A,($B16D) | Jump ahead to UnlinkNextDisplayRecord_CallsDisplayParameter if bit 0 of display flag at DisplayFlag is clear. | ||
| B5E5 | BIT 0,A | |||
| B5E7 | JR Z,UnlinkNextDisplayRecord_CallsDisplayParameter | |||
| B5E9 | LD A,($B182) | Read the byte at B180+02 and take the display data pointer. | ||
| B5EC | LD HL,$B172 | |||
| UnlinkNextDisplayRecord_ReadNext | B5EF | CALL RestoreSavedCharacterRecord | Call RestoreSavedCharacterRecord to restore the saved character record, then call UnlinkNextDisplayRecord to read the next display link. | |
| B5F2 | CALL UnlinkNextDisplayRecord | |||
| B5F5 | LD HL,$6888 | Take the message, then call PrintTextAndHandleControlCharacters to print the message. | ||
| B5F8 | CALL PrintTextAndHandleControlCharacters | |||
| B5FB | RET | Return. | ||
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Calls the display-parameter check, using the pointer saved at ObjectTablePointer+08.
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| UnlinkNextDisplayRecord_CallsDisplayParameter | B5FC | CALL SelectJumpIfNotZero | Call SelectJumpIfNotZero to plant the JR NZ opcode and test the character record. |
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| B5FF | LD HL,($B186) | Call UnlinkNextDisplayRecord to read the next character record. | ||
| B602 | PUSH HL | |||
| B603 | LD A,($B182) | |||
| B606 | CALL UnlinkNextDisplayRecord | |||
| B609 | LD HL,$6880 | Take the message, then call PrintTextAndHandleControlCharacters to print the message. | ||
| B60C | CALL PrintTextAndHandleControlCharacters | |||
| B60F | RET | Return. | ||
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Plant the
JR Z test, push a zero pointer and DisplayDataPointer, test the character record through SelectJumpIfNotZero, read the next record through UnlinkNextDisplayRecord and print the message at 687C.
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| UnlinkNextDisplayRecord_ClearPointer | B610 | CALL SelectJumpIfZero | Call SelectJumpIfZero to plant the JR Z opcode. |
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| B613 | LD HL,$0000 | Clear the pointer and take the display data pointer. | ||
| B616 | PUSH HL | |||
| B617 | LD HL,$B172 | |||
| B61A | PUSH HL | |||
| B61B | CALL SelectJumpIfNotZero | Call SelectJumpIfNotZero to plant the JR NZ opcode and test the character record. |
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| B61E | LD HL,($B186) | Call UnlinkNextDisplayRecord to read the next character record. | ||
| B621 | PUSH HL | |||
| B622 | LD A,($B183) | |||
| B625 | CALL UnlinkNextDisplayRecord | |||
| B628 | LD HL,$687C | Take the message, then call PrintTextAndHandleControlCharacters to print the message. | ||
| B62B | CALL PrintTextAndHandleControlCharacters | |||
| B62E | RET | Return. | ||
| Prev: B5A4 | Up: Map | Next: B62F |