Univac Emulators

Richard, My experience with the 642s was limited to helping to running test during ship yard periods.

It powers up but all I get is a single dot in the middle of the CRT. I pulled the boards and gave

I have created a new release of the 90/30 emulator. It contains a few minor bug fixes and

I've been making some more progress with the BEM replacement. The /FSTATUS, /PRINT and /DELETE

On 2022-03-02 12:12 pm, Stephen Boyd wrote: > On 3/02/22 1:10 pm, Charlie Gibbs wrote: > >

Thanks for this Steve. Certainly brought back memories of ICAM generation and TIP/30. Cheers Andy On

Thanks you both for explanation, that perfectly explains the environment I was unsure of, with a set

I recently found out that OS/3 would become unstable when the emulator was run on certain systems. It

It's been a while but here is another update to the 90/30 emulator. Except for bug fixes this

I came on to mention the Bitsavers group System80 and Series90 but you got to it first. This is an

I've been working on the floating point instructions with limited success. Simple stuff like add/

Well, it is time to release Version 0.? of the 90/30 emulator. It is not complete but there is enough

I got the emulator for the 0717 card reader finished. This allowed me to run 2 more VSB jobs. VSB004

Brilliant Steve .. I really am looking forward to compiling RPG and Cobol like I did back in the

Well, I'm back from vacation and working in the emulator again. I've run into a problem where

Just a quick note to let you know where the 90/30 emulator stands. OS/3 is running and I am working

Well Kaspersky was certainly fast with this one. I have their answer already. Hello, Sorry, it was a

Progress is slowly being made. I have gotten to the point where I can see the empty job slots

I've spent a bit more time on the 494 / 1230 emulation and I have the real-time executive that

This isn't strictly speaking an emulator related post but I have had a Univac 90/30 maintenance

Due to issues with Google drive, I have moved all emulator downloads to DropBox. They can be accessed

I dabbled in Delphi 1 when it was first released by Borland. Along with Prolog it was flavour of the

The installer for the 494/490/1230 emulator has been updated. The new version contains support for

The installer for the 494 emulator has been updated to include the new SPURT assembler. U494.exe has

There is now an alpha version of the SPURT/AS1 assembler for the 494 emulator. This allows code for

I have created a project on github for all of my emulators. https://github.com/sboydlns/

Hi; It's been a while since my last post so I thought I would give a quick update on the state of

I knew of a guy that had done an OS/3 emulator but I lost track of him and haven't been able to

I have made some changes to the 494 emulator. Primarily I have added an emulated card reader and

Dear Steve, thank you for the two new emulators. I appreciated very much your U9200 emulator, it