The Hobbit (v1.0): Routine at 8250

8250: Load a block, or restart on a tape error

Calls LD-BYTES. If it fails, prints 'tape error - hit any key to restart program', waits for a key and restarts the game (6C27), because a half-loaded game state could not be trusted.
8250	CALL $0556	The ROM's own LD-BYTES routine
8253	RET C	Loaded successfully: carry on
8254	LD A,$01	Failed: print in the lower window
8256	LD ($B5F2),A	Failed: print in the lower window
8259	LD HL,$B249	"tape error - hit any key to restart program."
825C	CALL $72D4	"tape error - hit any key to restart program."
825F	XOR A	Wait for a key
8260	IN A,($FE)
8262	AND $1F
8264	CP $1F
8266	JR Z,$825F
8268	JP $6C27	Restart the game (a half-loaded state cannot be trusted)