Routines
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64AC: Clear Lines
Clear the lines given by *629B from the bottom of the screen.
Input
B Line count from *629B
ClearLines 64AC CALL SwitchToNormalScreenOutput Call SwitchToNormalScreenOutput to switch to the normal screen output.
64AF LD A,($629B) Clear the number of lines held by *629B from the bottom of the screen using CL_LINE.
64B2 LD B,A
64B3 CALL $0E44
64B6 RET Return.
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