Need TR-DOS firmware — ZXNet «hardware.zx»

From Andrew Borisov To All 13 December 2006

Hello, ewgeny7 Thanks for the firmware. But I still can’t start the HDD controller. :) I can't even start TR-DOS. Looks like I've already checked everything 10 times. Do you happen to have the BASIC 48 firmware for Leningrad? It is highly desirable for a 1990 model. The one with a turbo mode for a tape recorder. By the way how does it turn on?

From Ivan Shishkin To All 13 December 2006

Hello, The Exploited The> by the way, she is not good friends with trdos (I encountered it personally). because The> original 48 needs BASIC (at least with a switch) The> uffff, how many years have passed... it seems *Load"" i.e. before each load The> asterisk It is turned on/off by entering “+” and “-”. I can post a video.

From Mark Antonov To All 13 December 2006

Hello andrew76 and> 1990 is highly desirable. The one with a turbo mode for a tape recorder. By the way, she is not good friends with trdos (I encountered it personally). because original 48 needs BASIC (at least with a switch) and> By the way, how does it turn on? ufff, how many years have passed... it seems *Load"" i.e. there is an asterisk before each load

From Pavel Fedin To All 13 December 2006

Hello, The Exploited Doesn't work well on computers where the ROM switches slowly. Moreover, from ROM BASIC reads one byte. It's arranged like this: ┌─- CODE ─── BASIC DOS -+-------- NOP NOP xxx JP #yyyy └── CODE ─── As you know, the entry points are located in the area of the BASIC character generator. Namely - where in the original the letters are separated, i.e. zero bytes. In Didactics font thickened, as a result, some bytes are replaced with non-zero ones. Thus Instead of the first NOP at the entry point, something else is considered if the ROM is switched delayed. The register values will be corrupted or control will be transferred altogether not there.

From Andrew Borisov To All 13 December 2006

Hello, Ivan For some reason I can’t start the HGMD board. Even the part that is responsible for launching TRDOS. She's doing something with terrible force. It seems that everything was assembled correctly, all connections were rechecked 10 times. What could be there? How to generally look for a fault?

From Mark Antonov To All 14 December 2006

Hello andrew76 and> How to generally look for a fault? understand how the circuit works. By the way, what scheme did you use to assemble it and how did you connect it? ROM?