Sherlock: Routine at F54A

F54A: Routine at F54A

Used by the routines at F490 and ProcessLocationUpdate.
F54A	INC E
F54B	LD H,A
F54C	LD A,E
F54D	CP $B0
F54F	LD A,H
F550	RET NZ
F551	DEC E
F552	XOR A
F553	LD A,H
F554	RET