> >into an eprom, as the QEPIII had no through port, so I usually ended > >up copying to microdrive cartridge, probably the last regular use I > >had for a mdv cartridge. These days, I'd probably use the romdisq > >instead. > ... but only if the QL has an internal ram expansion, or you plug QEPIII > into a backplane. I must find an internally expanded QL, as I would > like to use QEPIII this way. Yes, although the traditional QL+QEPIII is a dead end, there are ways around it with backplanes or internal expansions. I always forget that a QL would need a memory expansion for romdisq+something else like this.
> I copied it using another programmer (8-)# > > Tony Price did a great mod which allowed 'programming' of an NVR eprom > emulator. These are battery backed ram which are pin-compatible with > EPROMs - ie 'look' like them to the computer. I'm sure there was an add on at one time which let you copy code into a RAM or EPROM plugged into the ROM slot, I can't remember what it was called, I thinkit was by a company called MCS, anyone remember what the device was called? > I must find the code (it is on one of my QEPIIIs) and put it on my web > site. There is no copyright problem (is there Tony T?) as no-one has > pirated the hardware! I find it heartening how people like you are prepared to do their bit to prevent these older things slipping into history. I was pleasantly surprised by the help I got from traders and ex traders when I was getting as many old manuals as I could onto my website for posterity and of course to help buyers of 2nd hand gear. > BTW I have quite a large collection of assorted EPROMs from various > expansions etc. That will be useful to know. I have 2 EPROMs (27128's I think) which I have been recycling as and when (rarely!) I needed, and an old Z88 EPROM eraser. The EPROMs won't last forever so I'll probably take you up on that when the need arises! SMSQE and QemuLator allow you to run ROM images, so the need for EPROMs is not what it once was. I did blow a few data EPROMs for a previous employer who asked me if I knew how to handle them as something needed changing quickly rather than waiting for a new set to be ordered. Luckily they were EPROMs QEPIII would handle, so I read the code from the old one, patched the data which needed editing via a hex editor and gave it back to him reprogrammed following morning. Brownie points all round. I didn't tell him I couldn't replace them if I damaged them, luckily they worked first time. As far as I know...he never asked me to do it again! Dilwyn Jones _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
