Re: What does VIC-II do when switched "off"?

From: Segher Boessenkool <*segher_at_kernel.crashing.org*> Date: Sat, 8 Feb 2020 00:07:56 -0600 Message-ID: <20200208060756.GX22482_at_gate.crashing.org> · segher_at_kernel.crashing.org

On Fri, Feb 07, 2020 at 09:48:20PM +0000, smf wrote:
> On 07/02/2020 09:14, tokafondo wrote:
> >But... what if I turn the VIC-II "off"? What does it do when I want no
> >graphics at all? Just refreshing DRAM? does it stop accessing the bus and
> >reading all the memory locations it needs or does it just do it every time,
> >no matter if it's displaying something?
> 
> I assumed that when the screen is blanked then it just accesses $3fff on
> it's half of the clocks, apart of course from the dram refresh cycles.

IIRC it still does the sprite accesses (if sprites are enabled), and
that includes using the CPU's half of the cycles.

Segher