Re: Gemini 80-Bus System
When my linux box died it needed a new motherboard. I bought a replacement and linux needed a new install to work properly so I ended up using an old motherboard as a replacement. This older motherboard used the hdd drivers rather than the sda drivers. I found these to be a lot slower and also the linux system (maybe because of the backward change from sda to hda) would disable interrupts for a while. This caused disruption with the mouse and the serial ports.
In this case I actually found that using USB serial ports worked more reliably.
With gemini remember that 9600 baud has a divisor of 13. On a PC 9600 baud has a divisor of 12. In practice this means that 9600 baud is the fastest common baud rate between the machines. However it is still usable - indeed I have used T-NET to install floppy disk images for my matmos machine which I recovered/upgraded recently. It now supports 3.5 inch 1.44MByte disks - upgraded from 360k disks.
Personally I think T-NET is one of the most used programs I have written in Z80 code. The only pain is that it drives the serial port directly and hence needs a different version for each machine.
PS - Most of my work on CP/M has been done with the CCPZ extended command processor. It would be worth installing that on your system because it is so much nicer. T-NET also plays happier with CCPZ.
usage
T-NET <network drives> installs T-NET with upto four network drives - the limit is in xbeaver
eg T-NET NOP installs network drive N O and P
and T-NET R
removes T-NET
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