Re: Something else... 8501 GATE-IN

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Wed, 14 Mar 2018 20:08:56 +0100 Message-ID: <367bdee0-f9d6-7f16-1a30-f12725286564@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 03/14/2018 07:47 PM, Hegedűs István wrote:
> When display=off TED only uses the bus for the DRAM refresh. That is why 
> it switches back to single clock.
> Although it seems to be a waste of time when using SRAMs I believe we 
> should not worry because of this. What could we win with those extra 5 
> CPU cycles per scanline? Comparing to today's fast CPUs its nothing.

You'd gain about 78000 cycles per second.

(5 per scan line, about 312 scan lines in total, 50 frames/sec)

And yes, I know it wouldn't be a lot, that's why I put a ':)' behind it.

  Gerrit