Some Doctor PC jr. Questions

Also, when I received my PC jr it came with a small adapter cable. One end plugs into a joystick port but the other end is a male 9-pin D connector. What's this for? A joystick adapter I assume, but for what? Sega? Atari? I'd rather not randomly plug things into it and fry the machine.

Finally, the manual is in Chinese, how do you get it to backup a cartridge?

• You can pick up Bung's and Jeremy C.'s header documents from my Dr. PC Jr. page: http://mypage.direct.ca/c/ccovell/nesdev.html (nt) Chris 13:51:18 11/18/00 (0) responses
• Re: Some Doctor PC jr. Questions Destro 21:11:31 11/17/00 (0) responses

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Message	> I just got a PCjr and have been using QND to convert NES roms over. I am aware that QND gets the mirroring and masking bytes wrong for mapper 0 and 3 games. I would like to correct these myself. I'm familiar with hex editing but I just need to know which byte offset these are at and what the correct bytes they should be changed to. > Also, when I received my PC jr it came with a small adapter cable. One end plugs into a joystick port but the other end is a male 9-pin D connector. What's this for? A joystick adapter I assume, but for what? Sega? Atari? I'd rather not randomly plug things into it and fry the machine. > Finally, the manual is in Chinese, how do you get it to backup a cartridge?
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