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Author Topic: PC jr?...guess ill need an emulator  (Read 189 times)
Death_Mule17
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« on: May 14, 2012, 16:14 »

http://www.retroist.com/2012/05/14/m-u-l-e-for-the-ibm-pcjr/
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Chuckie Chuck
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« Reply #1 on: May 19, 2012, 16:51 »

Makes me wish I had my PCjr still, lol

Wow, I think I've seen enough after seeing the video, wow, that makes the commodore look like lighting fast, but the PCjr never was very impressive.  Mine had a parallel printer expansion module installed, and ram was upgraded to the max limit, you could actually boot MS DOS, but you couldn't run much in the way of DOS software because of the limited RAM memory.  (Fully expanded, I think mine had 128k, and if I remember correctly, the 64k expansion used one of the cartridge slots on the front of the CPU.  It's been quite a few years since I dumped it.)

Interesting notes about the PCjr.

First MS-DOS capable pc to use a wireless keyboard (you could hook it up hardwire, and use it without batteries, but if you chose, you could install batteries and it would operator line of site via IR like a TV remote.)

If you had a geniune IBM PCjr Monitor, it had audio through the monitor, but you could use a standard CGA or even composite monitor if you chose. (The later wasn't bad in 40 column mode, which was default for the PCjr, but it was unreadable in the standard 80 column used by most MS-Dos PCs which the PCjr was capable of via the MODE command after bootup.)

A lot of the software was cartridge based, using the disk drive strictly for storing data.

It had a lot of little features ahead of it's time, but was terribly behind the times in every way that actually mattered.  I can't remember all of the neat features that were ahead of it's time, but the overall limitations of it made them rather pointless.
« Last Edit: May 19, 2012, 17:09 by Chuckie Chuck » Logged

My other computer is a C64.
iso9001
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« Reply #2 on: July 26, 2012, 11:28 »

Trying to play the game. Downloaded dosbox. Mounted the directory where the game is installed.

The game itself is MULEcrkd.IMG

How do i play/start this game now?
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Chuckie Chuck
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« Reply #3 on: July 27, 2012, 09:45 »

You need to uncompress the image, you'll probably find a mule.exe file in it along with several other files.  In dosbox you'll simply type mule at the prompt once you are in the proper folder.

Without further info I'm not sure I can help... ...but

http://en.wikipedia.org/wiki/IMG_%28file_format%29

This will give you some basic knowledge.

Chances are good this was created with WinImage, a program that runs under windows, and probably will want to create some kind of disk or diskette, but may let you decompress to a folder on the hard drive or an external flash drive.

Goodluck!
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Chuckie Chuck
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« Reply #4 on: July 30, 2012, 02:30 »

Come to think of it ISO, it's for the PCjr, and the PCjr had proprietary hardware/software capabilities that no other DOS based PC supports, and I think the PCjr version of the game relied on them, so once you get the game uncompressed, you'll likely need to find an actual PCjr emulator.  I don't think the game will run in DOSbox, or on any other MSDOS, PCDOS, or IBMDOS Variation of DOS.

The PCjr could run MSDOS and it's variants, but also had a special built in operating system on ROM that could access software designed specifically for the PCjr.  The software could be cartridge or disk based (and maybe tape based as well), but ran with an internal boot loader.
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My other computer is a C64.
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