Here's the concluding part of Gary Vine's program. The drawing commands are the same as normal except that they obey the Mask command (Mask 255,1 is the standard full line) and have an optional fourth parameter where a value of 0 is overwrite, 1 is XOR mode, 2 is AND mode and 3 is OR mode. The remaining four commands are as follows. |VDU x,x . . . which effects the same as Print Chr$(x). . . |Store x$ where x$ follows this format. Store "C0000:FFEDF7" would Poke &C000,&FF:Poke &C001:Poke &C002,&F7. The address must be four characters long although the rest of the string can be up to 255. |Repeat and |Until condition, which performs a loop until the condition is satisfied. If you want a copy on cassette send £3.00, or £5.00 for disc, to 157a High Hill Road, New Mills, Stockport, Cheshire ******** . Also sent will be a MAXAM source code for the program. Popular Computing Weekly | 
