Tektronix 4404 and ncr5385 usage

[Elektraglide]

Hi,

I have a Tektronix 4404 that I have restored and had started a Tek4404 emulator when I came across the Tektronix 4404 emu in MAME.

The MAME emu seems like it has had a lot of work put in on it and seems to do everything right. It currently fails when the ncr5385 which does the SCSI handling times out.

I am looking for information as to why. Is it because the ncr5385 expects an emulated scsi disk to respond? Or something else - I was unable to find another MAME project that uses the ncr5385 chip emulation to compare.

Keen to get it working as I have an HD image with every piece of Tek4404 software - and lots of software I have written for the tek4404.

Adam

[mhoes]

Hi,

I have a Tektronix 4404 that I have restored and had started a Tek4404 emulator when I came across the Tektronix 4404 emu in MAME.

The MAME emu seems like it has had a lot of work put in on it and seems to do everything right. It currently fails when the ncr5385 which does the SCSI handling times out.

I am looking for information as to why. Is it because the ncr5385 expects an emulated scsi disk to respond? Or something else - I was unable to find another MAME project that uses the ncr5385 chip emulation to compare.

Keen to get it working as I have an HD image with every piece of Tek4404 software - and lots of software I have written for the tek4404.

Adam

As you might have noticed, this site sees very little traffic. If you are serious about improving the MAME emulation, or providing new roms/disk images/CHDs/etc., you might have better luck over here : https://forums.bannister.org/ubbthreads ... st&Board=1

[Elektraglide]

Ha! Much appreciated - will register there too.

Be great if anyone can point me at an example scsi disk device reading from a file img that I can learn from for Tek4404.