Underwurlde: Routine at 26610

The stub that the tape loader runs after loading the game. The loader leaves the game one byte higher than it is meant to be, so the stub moves the whole image (34816 bytes) down by one byte and then jumps to Start_Game_Selection to start the game.

The last operand byte of the final JP instruction lies at Room_Decoration_Table, which is the first byte of the moved image. That byte is 118 (the sprite id of the first decoration in Room_Decoration_Table), so after the move the JP still lands on Start_Game_Selection. Only the first two bytes of the JP are kept in this routine so that it does not overlap the Room_Decoration_Table table. The stub is wiped when Reset_Room_Table clears the Room_Visit_Table table.

The stub that the tape loader runs after loading the game. The loader leaves the game one byte higher than it is meant to be, so the stub moves the whole image (34816 bytes) down by one byte and then jumps to Start_Game_Selection to start the game. The last operand byte of the final JP instruction lies at Room_Decoration_Table, which is the first byte of the moved image. That byte is 118 (the sprite id of the first decoration in Room_Decoration_Table), so after the move the JP still lands on Start_Game_Selection. Only the first two bytes of the JP are kept in this routine so that it does not overlap the Room_Decoration_Table table. The stub is wiped when Reset_Room_Table clears the Room_Visit_Table table.
GameEntry	26610	DI	Disable interrupts.
	26611	LD HL,26625	Set HL to 26625 (the source address).
	26614	LD DE,26624	Set DE to 26624 (the destination address).
	26617	LD BC,34816	Set BC to 34816 (the number of bytes to move).
	26620	LDIR	Move the game down by one byte.
	26622	DEFB 195,128	The opcode (195) and the low operand byte (128) of the final instruction, JP 30336. The high operand byte is at Room_Decoration_Table.
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