Re: Independent CPU/VIC-II setup

From: Segher Boessenkool <segher_at_kernel.crashing.org>
Date: Mon, 31 May 2021 13:50:56 -0500
Message-ID: <20210531185056.GH3085_at_gate.crashing.org>
On Mon, May 31, 2021 at 09:23:49PM +0300, Marko Mäkelä wrote:
> If all 8 sprites are enabled, then further 2*8 cycles will be stolen 
> from the CPU, for fetching the sprite data. If I remember correctly, 
> those cycles would be right after the character data fetch,

Almost.  There is a number of idle cycles (how many depends on the exact
model VIC-II), then the sprite fetches (16 cycles), then the ram refresh
(5 cycles), then the character matrix (40 cycles).


Segher
Received on 2021-05-31 21:02:46

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