Cookie: Routine at 74D4

74D4: Reset Screen Buffer

Used by the routines at CreateWindow, StartGame and 6D38.
ResetScreen	74D4	LD HL,$4000	HL=screen buffer.
	74D7	LD B,$58	B=58 (i.e. finish once we reach the start of attribute buffer).
	74D9	LD C,$00	C=00 (value to write).
View the equivalent code in; Atic Atac Jetpac Lunar Jetman Pssst Tranz Am Continue on to ResetCopier to blank the screen buffer.