Routines
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70E2: Blanks "n" memory locations
Used by the routines at Start, SquiggleLine, 7574 and 77D1.
Input
B Counter
HL Target
Blanker 70E2 XOR A A=$00.
Blanker_Loop 70E3 LD (HL),A Write A to HL.
70E4 INC HL Increment HL by one.
70E5 DJNZ Blanker_Loop Decrease counter by one and loop back to Blanker_Loop until counter is zero.
70E7 RET Return.
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