My face was red when I opened the fall issue of UPDATE and saw I had transposed two digits in the number of bytes in a full-screen display of DFILE1. Anyone who has read Appendix C of the User Manual knows the display file plus the attribute file includes a total of 6912 bytes, as shown in the correction of line 40 below. The original listing will work in black and white but will not transfer colors because it does not address the attribute file. My disk drive system died on me as I was doing the article for UPDATE and so I lost the listing I sent in until it appeared in print. Sorry!
40 IF k$="1" THEN LET STP=16384: LET INS=INT (STP/256): LET NOB=6912: LET INB=INT (NOB/256): GO TO 80Note: Type-in program listings on this website use ZMAKEBAS notation for graphics characters.