Rick Conn's ultra-simple ZCPR3 "chat" tool gets a tune-up after
nearly seven years (I know, who uses it anyway?).  The line-wrap
algorithm is now slightly less primitive, the Z3 environment is
consulted to obtain the screen width, the wheel byte is checked
before allowing the printer to be toggled on.  Type 3 format with
safety header implemented, still only five records long due to Z80
opcodes and overall tightening.  From '89, released April 15, 1991