Trashman: Routine at BCB7

BCB7: Routine at BCB7

Used by the routine at StartGame.
BCB7	LD IX,($C277)	IX=*C277.
BCBB	BIT 2,(IX+$21)
BCBF	RES 2,(IX+$21)
BCC3	CALL NZ,$BCED	Call BCED if bit 2 of *IX+21 is set.
BCC6	BIT 3,(IX+$21)
BCCA	RES 3,(IX+$21)
BCCE	CALL NZ,$BCED	Call BCED if bit 3 of *IX+21 is set.
BCD1	LD DE,$000C	DE=000C.
BCD4	ADD IX,DE	IX+=DE.
BCD6	BIT 2,(IX+$21)
BCDA	RES 2,(IX+$21)
BCDE	CALL NZ,$BCED	Call BCED if bit 2 of *IX+21 is set.
BCE1	BIT 3,(IX+$21)
BCE5	RES 3,(IX+$21)
BCE9	CALL NZ,$BCED	Call BCED if bit 3 of *IX+21 is set.
BCEC	RET	Return.
BCED	LD L,(IX+$22)	L=*IX+22.
BCF0	LD E,L	E=L.
BCF1	LD A,(IX+$23)	A=*IX+23.
BCF4	CP $00	Return if A is 00.
BCF6	RET Z	Return if A is 00.
BCF7	LD C,A	C=A.
BCF8	AND %00000011	Keep only bits 0-1.
BCFA	OR %00111000	Set bits 3-5.
BCFC	LD H,A	H=A.
BCFD	ADD HL,HL	HL+=HL.
BCFE	LD A,C	A=C.
BCFF	LD BC,$0102	BC=0102.
BD02	RLCA	RLCA.
BD03	RLCA	RLCA.
BD04	RLCA	RLCA.
BD05	AND %00111000	Keep only bits 3-5.
BD07	OR %01000000	Set bit 6.
BD09	LD D,A	D=A.
BD0A	JP Copier	Jump to Copier.