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7439: Reset Screen Buffer
Used by the routine at CreateWindow.
ResetScreen 7439 LD HL,$4000 HL=screen buffer.
743C LD B,$58 B=58 (i.e. finish once we reach the start of attribute buffer).
743E LD C,$00 C=00 (value to write).
View the equivalent code in;
Continue on to ResetCopier to blank the screen buffer.
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