I don't know much about the PCjr but these is what I found so far: 1) jr-IDE -- https://texelec.com/product/jr-ide-for-the-pcjr-by-retrotronics/ 2) a sidecar called "Legacy III" --- https://www.brutman.com/PCjr/pcjr_options.html 3) Use a ZIP drive BUT PCem emulated the IDE one and it's got to be the...

Did you try XT-IDE?

What do you mean by "we'll be fine" will this new Apple chips will be helpful for PCem?
Of course we don't have any details about the processor specs, but...

Just a few days ago, Apple announced that will soon start making its own processors for their desktop and laptops, those processors will be RISC based and Apple's aim is their processors to be faster than the current Intel ones. So... when the times comes, if we have an official PCem build for that ...

Name: 1501512.u18 Date: 4/10/2020 Size: 32 KB (32,768 bytes) -------- SHA-1: 6bac726d8d033491d52507278aa388ec04cf8b7e MD5: 1a2ac1ae0fe0f7783197e78da8b3126c CRC32: 79522c3d Name: 5000027.u19 Date: 4/10/2020 Size: 32 KB (32,768 bytes) -------- SHA-1: 2aa781a698a21c332398d9bc8503d4f580df0a05 MD5: e816a...

maybe your bios file got corrupted somehow. Are you using CGA for the display, right?

Select a 360 or 720 kb floppy but don't load an image on it

leilei: the binary you compiled for the Pi was made to be executable under Raspberry Pi OS?

widge wrote: ↑

Tue 23 Jun, 2020 9:49 pm

How do you boot into IBM Cassette BASIC?

omarsis81 wrote: ↑

Sun 21 Jun, 2020 8:16 pm

ibmxt2.jpg

When you have no floppy nor HD it boots there like the real machine

A bit off-topic but does PCem under Linux perform faster than in Windows?

You have the readme.txt here https://bitbucket.org/pcem_emulator/pcem/src/default/readme.txt which is the only documentation AFAIK. Like JosepMa said, there you have the bios names you need and you can also look at the source code for the name files. As for the limitations I guess you kinda know the...

Speaking about patches I remember long ago you were working on a patch to improve the quality of the Voodoo2 and you posted screenshots of textures of two different versions of PCem and a real Voodoo2. That was a great work! But I believe that patch wasn't committed or finished

That's great! I wish we could have an official Pi executable file for download in the future

Like everyone here, I know I would welcome the addition of the Voodoo Banshee and the Voodoo3, but not at the cost of wrecking PCem or overworking Sarah and leilei. I agree with PoloniumRain. There are many things Sarah and leilei can do to improve PCem without adding the Voodoo3. There does come a...

PoloniumRain, you are new here, so I going to explain a few things: 1) Sarah (the main programmer of PCem) said many, many times CPU emulation cannot be divided into many threads, so, for PCem the best host processors would be the one that performs the best with single thread operations, like an Int...

Any view on the Intel i740? The Supermodel emulator (Sega Model 3) emulates the earlier related Real3D chip (through GL though...). Dunno if there were data sheets out on that and don't know if it shares a lineage with the Intel Extremes on later Intel chipset boards (which are wayyyyyy out of the ...

Thanks for sharing your thoughts on the future of PCem! As leilei mentioned, the Intel 740 could be interesting to look at some point (I'm sure there's lot of documentation for it) Also I mention the Trident Blade XP and SiS 6326... I'm not particulary interested in those, but I mentioned them in ca...

As noted, we recently discussed the possibilty of the Voodoo3 and it was concluded it was not worth it because current hardware wouldn't handle it, and I believe it the V3 would be much less effective than the current V2 SLI because the V2 SLI can use many threads whereas the V3 would use less for t...

Interesting question. I believe not with network because it is not possible to configure wich card PCem uses in the host computer, but I'm not 100% sure

tk421 what about DirectX support? Voodoo2 has DX 5.0 while Voodoo3 has DX 6.0 - I bet more games would need the Voodoo3 than those three you mention

Just use the Voodoo3 file as a base (maintaining the copyright of course). You say that like it's an easy thing to do. The reality is that if anyone wanted to do this, the only sane way to do it would be to throw away the existing PCem Voodoo code, that I have spent a considerable amount of time an...

I noted that the Bochs emulator has the Banshee and the Voodoo3 and the source code is available here: https://sourceforge.net/p/bochs/code/HEAD/tree/tags/REL_2_6_11_FINAL/bochs/iodev/display/ In case a skillful programmer wants to port it What a brilliant idea. But why stop there? You could take t...

I noted that the Bochs emulator has the Banshee and the Voodoo3 and the source code is available here: https://sourceforge.net/p/bochs/code/HEAD/tree/tags/REL_2_6_11_FINAL/bochs/iodev/display/
In case a skillful programmer wants to port it. I believe it is better than star from scratch

https://www.youtube.com/watch?v=mI3e7n3AMAU
There are many videos that show Windows 7 running on a K6 platform. So, answering your question, it should work.

Honestly, I don't see anything out of the extraordinary. I mean, the led HDD activity led stutters on real machines and takes the same time to load. Of course on a RAM drive it would load quicker because RAM is faster than a mechanical HDD Maybe what you want is the HDD to act a RAM drive to avoid l...

I've mentioned it on the IDE HDD thread already, but when the game is run from a RAM drive it is flawless, like on my real Pentium 233 machine. This is a major bottleneck, and does not behave like a period correct IDE HDD drive, please fix that. So... you are playing Duke 3D on PCem on a Pentium 23...

James-F wrote: ↑

Sat 02 May, 2020 3:28 pm

Thank you!

IDE HDD emulation is still slow and stuttery as heck.

With what games do you notice that stutter?

I believe that even unpateched shouldn't have that effect

Great info, thanks for clarifying