Routines
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59964: Clear Both Display Buffers
Used by the routines at Print_Menu_Strings, Initialise_New_Game, Paint_MessageBuffer and Clear_AttributeFile.
Zero-fill 3840 bytes from Primary Display Buffer (PrimaryDisplayBuffer), covering both the primary and secondary buffers.
Clear_BothDisplayBuffers 59964 LD HL,25504 Point HL at Primary Display Buffer (PrimaryDisplayBuffer).
59967 LD BC,3840 Load BC with 3840.
59970 JR Fill_MemoryWithZero Jump to Fill_MemoryWithZero to fill with 0.
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