Mike's PCjr Page

Has anyone done a video showing a game running on the PCjr with a V20 and a 8088? I know everyone says that the V20 gives you about a 20% speed increase, but I'd like to see how that actually translates into a game. Does it make any games play too fast or make them way too hard? I was hoping to see ...

I guess I don't need to worry about the backpack driver then. I think I have about 578k or so free so I guess it should be ok. One question though, is the reported free ram the total free ram or just the 'fast ram' not including the built in 128k? Because I'm curious as to what's eating up all that ...

Interesting, I'll have to look into that.

How much memory is generally needed for PCjr games? I know back in the 486/Pentium era you needed 615K+ free but I doubt the memory requirements are that high for XT era software

Is it possible through the use of autoexec.bat to conditionally load .sys files? I have a backpack (3.5" floppy) driver that I only need when I want to transfer things to my PCjr, otherwise it's taking up 13.5k of precious memory. Is it possible to put a statement in my autoexec to ask if I wan...

What's the difference between the two jrconfigs other than the RAM disk (which I don't use)? EDIT: The new pkzip didn't make a difference EDIT2: Looks like the older jrconfig doesn't work either. EDIT3: Ok without the backpack.sys file it works. So it looks like that's the problem. I found one on mi...

I entered the commands manually and got the same reset I was getting from TDL. What does this mean?

I saw the text for pkunzip briefly before the reboot, but I don't think it actually got to unzipping anything (just displayed the copyright message). I'll try those steps tomorrow and let you know.

My backpack drive is D but I have it assigned to B. C is my hard drive (well DOM module anyway).

Ok I tried the latest version of TDL and I'm still getting the reboot issue every time. I've attached my log file and the backpack.sys file I use just in case that is the problem.

I'll bring it to the show and maybe we can find a quiet corner to work in. There should be a PCjr monitor at the show so maybe we can borrow that so I don't have to lug mine? The only PCjr monitor I know will be there will be attached to a PCjr on the show floor... I was hoping we might be able to ...

I can try this this weekend. I just put my PCjr away to get my 5150 out to do some testing with this so it might be a bit (wish I had room for both). I guess it's possible that there could be something physically wrong with my jr that TDL is triggering, but that seems a bit far fetched since it work...