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Nyef
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SG1000 and I/O writes to 0xde and 0xdf
 Posted: Sat Nov 27, 1999 7:01 pm
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Hello all.
I'm working on adding SG1000 emulation to DarcNES, and my first semi-working version shows a ton of writes to ports 0xde and 0xdf in some games. The docu I got from the documentation area here doesn't even mention these ports. What are they for?
--Nyef
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- Joined: 24 Jun 1999
- Posts: 1732
- Location: Paris, France
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Posted: Sun Nov 28, 1999 12:14 am
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Quote > I'm working on adding SG1000 emulation to DarcNES, and my first semi-working version shows a ton of writes to ports 0xde and 0xdf in some games. The docu I got from the documentation area here doesn't even mention these ports. What are they for?
You can safely ignore them for SG-1000 emulation.
(0xDE is used in SC-3000 to change the input mode, and I don't know about 0xDF)
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