Subject: Question about SWCHB From: debrodennis@xxxxxxxxxxx Date: Thu, 08 Jul 2004 17:19:14 +0000 |
Hi there,
In the Stella Programming Guide it states that this register is hardwired to be input only. If that's so then why would they have the SWBCNT register?
I'm looking at Air-Sea Battle and after the game power up Larry sets (or tries to set) D4 of SWCHB as output.
Later in the code you'll see...
LF175: LDA $97 ;3
STA SWCHB ;4
Does this give him an extra bit for RAM or something?
Take care,
Dennis
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