----------
>From: gentlben@xxxxxxxxxxxx
>To: stella@xxxxxxxxxxx
>Subject: [stella] read write registers
>Date: Tue, Jun 15, 1999, 6:02 PM
>
> here is a really simple question:
>
> is it true that read and write registers like VSYNC, VBLANK, COLUPF,
> AUDC0, etc. and INPT0, CXM0P, etc. are stored on the same addresses?
>
> what i mean is, if you wrote to address $08, for example, you would be
> writing
> to COLUPF, but if you read from address $08, you would actually be
> reading
> INPT0?
>
> dee
>
Correct, the registers on the TIA chips are read only or write only. It's
confusing that the read register at a specific address is nothing like the
write register AT THE SAME ADDRESS!!
Ack. I hated that about the 2600 when I first worked on it.
Burger
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