Routines
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A4E0: Leave Success For The Script
Used by the routines at ProcessLocationDisplay, ProcessObjectEntry and ProcessObjectEntryAlternate.
Compares the following fields and records a match when they agree.
CompareFollowingFields A4E0 PUSH DE Keep the schedule entry, then call ReadScriptPosition to compare location data.
A4E1 PUSH HL
A4E2 PUSH IY
A4E4 CALL ReadScriptPosition
A4E7 JR NZ,CompareFollowingFields_0 Go to CompareFollowingFields_0 if the script position does not match.
A4E9 LD A,$01 Take 01 store it at LocationMatchFlag and call ReadScriptPosition to compare location data.
A4EB LD ($A02E),A
A4EE CALL ReadScriptPosition
A4F1 JR NZ,CompareFollowingFields_Next Go to CompareFollowingFields_Next if the script position does not match.
A4F3 CALL ReadScriptPosition Go to CompareFollowingFields_0 if this field matches.
A4F6 LD A,$00
A4F8 JR Z,CompareFollowingFields_0
CompareFollowingFields_Next A4FA POP IY Restore the schedule entry and the pointer from the stack, keeping a copy of each there.
A4FC POP HL
A4FD PUSH HL
A4FE PUSH IY
A500 LD DE,$0004 Take an offset of 0004.
A503 ADD IY,DE Step to the next schedule entry and step on two places, then call ReadScriptPosition to compare location data.
A505 INC HL
A506 INC HL
A507 CALL ReadScriptPosition
A50A JR NZ,CompareFollowingFields_0 Go to CompareFollowingFields_0 if the script position does not match.
A50C LD DE,$FFFC Step the schedule entry back by 04 and call ReadScriptPosition to compare the location data.
A50F ADD IY,DE
A511 CALL ReadScriptPosition
A514 LD A,$01 Take 01.
This entry point is used by the routine at CompareLocationData.
CompareFollowingFields_0 A516 POP IY Restore the saved schedule entry, the saved pointer and the saved source from the stack.
A518 POP HL
A519 POP DE
A51A RET Return.
View the equivalent code in;
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