180: Routine at A9C2

A9C2: Routine at A9C2

Used by the routines at StartMenu and AroundTheClock.
A9C2	LD DE,$0101	DE=0101.
A9C5	LD B,$16	B=16.
A9C7	PUSH DE	Stash DE and BC on the stack.
A9C8	PUSH BC	Stash DE and BC on the stack.
On return from CalculateScreenBuffer HL will contain the screen buffer destination.
A9C9	CALL CalculateScreenBuffer	Call CalculateScreenBuffer.
A9CC	LD B,$08	B=08.
A9CE	PUSH BC	Stash BC and HL on the stack.
A9CF	PUSH HL	Stash BC and HL on the stack.
A9D0	LD BC,$0005	BC=0005.
A9D3	PUSH HL	Stash HL on the stack.
A9D4	POP DE	Restore DE from the stack.
A9D5	INC DE	Increment DE by one.
A9D6	LD (HL),$00	Write 00 to *HL.
A9D8	LDIR	LDIR.
A9DA	POP HL	Restore HL from the stack.
A9DB	INC H	Increment H by one.
A9DC	POP BC	Restore BC from the stack.
A9DD	DJNZ $A9CE	Decrease counter by one and loop back to A9CE until counter is zero.
A9DF	POP BC	Restore BC and DE from the stack.
A9E0	POP DE	Restore BC and DE from the stack.
A9E1	INC D	Increment D by one.
A9E2	DJNZ $A9C7	Decrease counter by one and loop back to A9C7 until counter is zero.
A9E4	RET	Return.