This utility program extends the 16K ZX8I instruction set to include nine more functions: Renumber will renumber all your program lines, including GOTOs and GOSUBs. You specify the number to start from and the steps in which they are num-bered. Indirect or calculated GOTOs and GOSUBs are not re-numbered but are reported on completion.

Delete removes a specified number of program lines. Memory reports, in bytes, how much memory is left. Dump reports on the variables used and their values after a program run. Find reports and lists lines containing a specified word/s. Replace replaces any specified word or string with another. Save and Append, used together, provide a 'merge' function. Remkill removes all REMarks.

I had great fun with this program, renumbering a test program in all sorts of step sizes, removing bits of it, checking memory, replacing words and killing Rems. All functions worked perfectly. The tape loaded first time, transferred itself above Ramtop and was ready for use. The instructions are well written, detailed and easy to understand.

This is a useful but not essential program. I can't help feeling that most of its use will be 'because it's there'.

Ray Elder