Knight Lore: Routine at D0F6

D0F6: Keyboard: walk forward

Used by the routine at keyboard_b. Part of keyboard. $BD selects two half-rows at once, A to G and H to Enter; any key in either sets the bit.
keyboard_forward	D0F6	LD A,$BD	any of A..G, H..Enter: forward, bit 2
	D0F8	CALL read_port
	D0FB	JR Z,keyboard_jump
	D0FD	SET 2,C