The first compiler advertized was ZX Autocoder, produced by Control Technology of Hyde, Cheshire, UK, in the April 1982 issue of Sinclair User. The compiler sold for 6.95 pounds "including cassette and manual." They ran a few more ads, but by the end of 1982, no more ads were running.
In the June, 1982, issue of Sinclair User, PSS of Coventry, ran an add for "ZX Compiler." Cost was 6.95 pounds. By September , 1982, PSS had bundled the compiler with "Enhanced-Basic" as the Programmers Pack #1 for 4.95 pounds.
November, 1982, issue of Sinclair User, Silversoft was advertising a "ZX81 Compiler", selling for 5.95 pounds.
In the Nov/Dec. 1982, issue of Sync (US) magazine, there were two compilers advertized. One was by Non Trivial Solutions of Amarillo, Texas. Their compiler was called ZXpress and was sold for $29.95. This was only advertized once in Sync. The other was PSS advertizing MCODER, which is a renaming of their earlier compiler. Selling for 7.95 pounds.
In the January, 1983 issue of Sinclair User, PSS ran their first advertizement in the UK for their renamed compiler, MCODER. Selling for 7.95 pounds.
In the March/April 1983 issue of Sync, there is an ad for "The ZX Compiler" from Bob Berch of Rochester, New York. Cost $25.00.
In the May/June 1983 issue of Sync, Kopak Creations of Union City, New Jersey, advertized "Z-99 Compiler" for $19.95.
July/Aug 1983 issue of Sync, Data-Assette of Oxford, PA, ran an ad for "ZX-Compiler" for $24.95.
Sept. 1983 issue of Sinclair User, PSS ran an add for MCODER II. Cost of 9.95 pounds.
For some of the US vendors advertizing compilers, it is unclear of this is a compiler of their own writing or if they renamed an existing compiler and resold it.
PS: MCODER 2 referred to itself internally as 'ZXGT' - no idea what that stood for. This has brought back such positive memories that I'm inclined to look up who the director of PSS was, find them on the internet, and tell them - 30 years late - what a satisfied customer I am.
The only other compilers I've been able to download are Silversoft's ZX-Compiler and something called BASIC-I compiler (written in BASIC !). Unfortunately, no docs for either one so I haven't tried them. I'd really like to see the Berch Compiler though.
A bunch of MCoded games and other programs can be found at...
for those interest.
The original ZXGT for any one interested, the instructions are for the original MCODER but should suffice as I believe ZXGT and MCODER are one and the same thing roughly speaking with the compiler activated by USR 17389 being the only difference I can see at first glance.
- ZXGT Compiler (1982)(Personal Software Services).rar
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