Posted By
Litwr
on 2009-09-23
02:58:06
|  Re: A reply to "The Letter (3-PLUS-1)"
Thank you very much for these hard & interesting questions.  I had to rembember many of 20 years old things. These things exactly are the real +4 hardware, the mentioned programs without sources (all assembler code was written directly in TEDMON), and the author himself.  I've tried this stuff again. However I can't test Centronics connection (all emulators missed this) so I can only conjecture some things. I assume that "3+1 russifier" contains Epson driver -- it is possible to see user port code at $6aa. The Epson driver simply redirects all output to device #4 (this number may be changed by POKE in BASIC version of this driver) to the user port.
I could be erroneus about identificaton of German cartridge with Russian language support. I saw it only one time during 10 minutes. It could be other Word Processor with possible GDR origin.
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