Re: Did Commodore cheat with the quad density floppies?

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Sun, 6 Jan 2019 14:12:48 +0100 Message-ID: <b9455266-3dfd-7aea-ae89-b1313a0819aa@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 1/6/19 1:08 AM, André Fachat wrote:
> In my experience, using a standard MFM controller chip in the end 
> reduces CPU and RAM requirements, as no GCR encoding and related buffer 
> is needed

It only reduces CPU load if you combine it with a DMA controller. 
Otherwise the CPU has to poll the disk controller to be able to grab the 
data fast enough.

  Gerrit