The Hobbit: Routine at 9D00

Used by the routine at Condition_TotalTheMassInside.

Adds the volume or the mass of each object inside the id in A. Volume covers those objects only; mass also adds what they hold. An overflow returns FF.

Used by the routine at Condition_TotalTheMassInside. Adds the volume or the mass of each object inside the id in A. Volume covers those objects only; mass also adds what they hold. An overflow returns FF.
Condition_AddUpTheObjectsInside	9D00	PUSH IX	Point IX at the object table.
	9D02	LD IX,$C063	Point IX at the object table.
Condition_AddUpTheObjectsInside_Loop	9D06	CALL Table_FindTheRecord	Call Table_FindTheRecord to find the record.
	9D09	JR Z,Condition_AddUpTheObjectsInside_RestoreAndReturn	Jump to Condition_AddUpTheObjectsInside_RestoreAndReturn at the end of the object index.
	9D0B	CP (IY+$01)	Jump back to Condition_AddUpTheObjectsInside_Loop if where this object is is not the id in A.
	9D0E	JR NZ,Condition_AddUpTheObjectsInside_Loop
	9D10	PUSH AF	Jump to Condition_AddUpTheObjectsInside_AddTheMass if B is zero (add masses instead of volumes).
	9D11	SUB A
	9D12	CP B
	9D13	LD A,C
	9D14	JR Z,Condition_AddUpTheObjectsInside_AddTheMass
	9D16	ADD A,(IY+$02)	Add the object's volume onto the total.
	9D19	JP PE,Condition_AddUpTheObjectsInside_MarkTheTotalAsFull	Jump to Condition_AddUpTheObjectsInside_MarkTheTotalAsFull if the total overflowed.
	9D1C	LD C,A	Copy the result into C.
	9D1D	JR Condition_AddUpTheObjectsInside_FindTheRecord	Jump to Condition_AddUpTheObjectsInside_FindTheRecord to find the next record.
Condition_AddUpTheObjectsInside_AddTheMass	9D1F	ADD A,(IY+$03)	Add the object's mass onto the total.
	9D22	JP PE,Condition_AddUpTheObjectsInside_MarkTheTotalAsFull	Jump to Condition_AddUpTheObjectsInside_MarkTheTotalAsFull if the total overflowed.
	9D25	LD C,A	Copy the result into C.
	9D26	LD A,(IX+$00)	Read the id from the index entry.
	9D29	CALL Condition_AddUpTheObjectsInside	Call Condition_AddUpTheObjectsInside to add the mass of what this object holds.
Condition_AddUpTheObjectsInside_FindTheRecord	9D2C	POP AF	Jump back to Condition_AddUpTheObjectsInside_Loop to find the record.
	9D2D	JR Condition_AddUpTheObjectsInside_Loop
Condition_AddUpTheObjectsInside_RestoreAndReturn	9D2F	POP IX	Restore IX from the stack.
	9D31	RET	Return.
Condition_AddUpTheObjectsInside_MarkTheTotalAsFull	9D32	POP AF	Pop the saved id and mark the total as full (FF).
	9D33	LD C,$FF	Pop the saved id and mark the total as full (FF).
	9D35	JR Condition_AddUpTheObjectsInside_RestoreAndReturn	Jump back to Condition_AddUpTheObjectsInside_RestoreAndReturn to return.
View the equivalent code in; Sherlock