Routines
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43300: Condition: Parser Succeeds
Calls the parser check indexed in JumpTable_ParserChecks and succeeds when it returns with the carry clear.
Stores A at ScriptParserResult.
Input
IX Pointer to the script entry (opcode, check index)
Output
F The zero flag is set when the check succeeds
The operand selects a parser check from JumpTable_ParserChecks.
Condition_ParserSucceeds 43300 LD E,(IX+1) Fetch the check number (the operand) from *IX+1 into E.
43303 PUSH IX Stash IX on the stack.
43305 LD IX,42873 Point IX at the parser-check jump table at JumpTable_ParserChecks.
Resolve the check routine address from that table.
43309 CALL GetTableEntry Call GetTableEntry.
Jump to that check, returning here at ParserSucceeds_Return.
43312 LD DE,43317 Push the return address ParserSucceeds_Return onto the stack.
43315 PUSH DE
43316 JP (HL) Jump to the check routine held in HL.
The check returns here with its result in A and the carry flag.
ParserSucceeds_Return 43317 POP IX Restore the script pointer from the stack.
43319 LD (43014),A Store the check's result at ScriptParserResult.
43322 JR C,ParserSucceeds_Failed Jump to ParserSucceeds_Failed if the check failed (carry set).
43324 XOR A Clear A and set the zero flag; the parser check passed.
43325 JP RunScript_SkipCondition_TwoBytes Jump to RunScript_SkipCondition_TwoBytes.
The check failed, so force the condition to fail.
ParserSucceeds_Failed 43328 XOR A Clear A ready for RunScript_InvertConditionResult.
43329 CALL RunScript_InvertConditionResult Call RunScript_InvertConditionResult so the condition fails when the check failed.
43332 JP RunScript_SkipCondition_TwoBytes Jump to RunScript_SkipCondition_TwoBytes.
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