The PS/1 UK Romshell
While looking for some PS/1 screenshot, I noticed that the UK ROM I thought I have is most probably the US version. In fact in the UK version there’s no PRODIGY online service available (see picture, the telephone is missing.)
So I shrunk the F80000.BIN file to 256Kb, renamed it to FC0000.BIN and put it in PS1_2011_ROM_US.zip
Now I’m looking for the UK version, so as always donations are welcome. UK version found (see download page)
The new project page is online at http://barotto.github.io/IBMulator/
In this version:
The PS/1 Audio card still lacks Joystick and MIDI support though.
Now MS Works 2.0 and Sierra adventures (KQ5, SQ4) work properly.
Download the precompiled binaries at https://github.com/barotto/IBMulator/releases/tag/v0.4
Any feedback or bug report are welcome!
The Windows version has been tested only under Windows 8.1. It might run under Windows 7 but I don’t have the resources to test it on anything else than Win 8.1 x64.
The HDD emulation works but it’s very basic (only read, write, seek, read_check commands and DMA data transfers), so any low level diagnostic or format programs will almost certainly not work.
You can download the precompiled binaries at https://github.com/barotto/IBMulator/releases/tag/v0.3
In the Download section you can find a pre-formatted, bootable HDD image with the italian version of all the IBM factory-installed programs.
Unfortunately an Heisenbug prevents some programs from working properly (CPU throws an invalid opcode exception).
This will be the last version for some time as I don’t have much free time anymore. I will continue to sporadically push code updates to the master branch on GitHub though.
The IBM PS/1 model 2011 emulator.
https://github.com/barotto/IBMulator
It’s still in its infancy. It lacks a lot of features and has many rough edges, but I think it’s in a fairly usable state.
Even if it’s not complete (and it works only on Linux), I release the code following the motto “release early, release often”.
In the Download page you can find the ROM to use with the emulator and some other program, like a ROM dumper to dump your own ROM image. I’m currently looking for the US version and other international ROMs, so I can test and complete the emulator. Donations are welcome!
Precompiled binaries can be downloaded at https://github.com/barotto/IBMulator/releases
The PS/1 model 2011 emulator seems to function properly now. I had to fix a couple of strange bugs in the Bochs’ code (but I’m not confident enough to submit patches).
Now it boots without errors, the mouse driven interface is working correctly and it’s even able to launch some games.
No HDD or audio yet though, and the usability is almost nil (no gui).
I’ve been playing with a shader lately, namely the Timothy Lottes’ CGA monitor shader. It is promising, but it definitely needs some tweaking.
The emulator for this system is progressing well. The following is the screenshot of the fist time it successfully booted to the IBM’s 4-quadrant interface, directly from the system rom.
There’s still a lot to do. HDD and sound emulation are the biggest challenges.
