a :this is the program VIDEONUM - displays memory locations in bank 70b :of the Osborne EXECUTIVE by W. van Riper 19849b :Fb ()Nb:wb:defines direct cursor addressing:b:b P$(X,Y)()"="(Y )(X )b:b:this is the arithmetic which talks about the memory offset to the Hc:following line - a function which allows you to write to a specificc:screen memory location is like: FNP(X,Y)=(X+(128*Y)+49152), andc:you would poke to this location, specifying X and Y just like you would in3d:direct cursor addressing except you have to switch in bank 7 with the OUTyd:function - see comments in the program FINDCHAR of this seriesd:d V(X,Y)(X(Y)<)d:d :: this makes the direct cursor addressing work right...d :e( Y 2e2 P$(,Y);(Y@);" ";"BEGINS ROW ";Yae< P$(2,Y);"WHICH ENDS AT ";(YO@)ieF YePX$: X$"" PeZ (): P::@);" ";"BEGINS ROW