Mike's PCjr Page

Topbench results with the PC-Sprint mod and NEC V20 @ 10MHz : Score: 8 Memory: 1537 Effective addressing: 1122 Opcode exercise: 926 Vid adapter speed: 1451 3DGame distribution: 855 I did not fully understand the PC Sprint mod when I first got mine. I originally thought that the PC-Sprint module I i...

Ok, thanks for the info. I await the day my PCjr can run some of those later games that support Tandy graphics at a normal speed. With a PC Sprint Mod your PCjr. can run games faster than many Tandys. Too fast isn't a good thing for compatibility. Got a link to this mod? PC Sprint Mod is a bit too ...

Thanks but I got it working. Was Wasteland the only game that made separate files for the different versions of the graphics? Most games just had all the files in the same directory. I believe Wasteland is converting graphics from 16-color to whatever the adapter requires during installation. It is...

Tempest wrote:Ok, thanks for the info. I await the day my PCjr can run some of those later games that support Tandy graphics at a normal speed.

With a PC Sprint Mod your PCjr. can run games faster than many Tandys.

I'd be willing to try it and report back if I had a surefire way to revert back to v0.11 in case something went wrong.

No, you will not find the images on that site, but the Internet makes so much which was not intended for free public consumption available to the public these days, even in places where you might be surprised to find such things.

My jrIDE is using the BIOS based off the v0.11 of XT-IDE Universal BIOS from 2012. Can it be upgraded to anything newer? I believe r604 is the current XT-IDE BIOS (dated 12-15-2021) and the module "MODULE_8BIT_IDE_ADVANCED" does have explicit jrIDE support. I'd like a BIOS that does not wa...

Wasteland is annoying because it sets up all the graphics modes from the floppy disks. The 10th Anniversary CD represents a fresh EGA install, which is worthless if you wish to use CGA RGB, CGA Composite or Tandy graphics. I believe that the Tandy graphics mode will work properly in the PCjr. with t...

Here is another potential source : https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/5/532773-2 https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/5/532771-2 I really need to get me a pair of these for my own jrIDE. It's connector is like Tempest', it has at least on...

I got JRCONFIG v3.10 to work with SQ1 1.0X with this config.sys entry device=JRCONFIG.SYS /v32 /s0. Alternately, JRCONFIG.SYS 2.14 will work with the above parameters if you use JRCONFIG.DSK. JRCONFIG.NRD will not work. This eliminates enough of the RAM Disk creation to permit the game to run. I sho...