Commander X16

Going to start today with NE555 generator ? I was ordering parts for the computer and videocard for several months, now I have everything needed.

And if it works I hope to connect the Am9511 FPU to it ?

It's easier/cheaper to create faster hardware than gather talented low-level coders - that's the answer. Like nobody builds their own house or car now. And builders neither build their tools or create materials - that's inefficient.  So low-level coding is an engineering pleasure (and retro-computi...

<a contenteditable="false" data-ipshover="" data-ipshover-target="<___base_url___>/index.php?/profile/1521-zerobyte/&do=hovercard" data-mentionid="1521" href="<___base_url___>/index.php?/profile/1521-zerobyte/" rel="">@ZeroByte</a> I mean overriding the memory, not another device. Like my devic...

Is it possible to implement additional mapping via the extension card? Is there any documentation on how banking implemented at all? And how can memory values be overridden. Like device listens to some memory addresses (IO to memory mapping as I understand) and provides its own memory instead. That...

My 12 years old son learns Arduino and Python. A little bit of electronics, but mostly modules in simple form without deep understanding of how it works. He doesn't share my interest in retro-computing. He doesn't feel that nostalgia to old games (that are really primitive to him even comparing wit...

Thank you for such a detailed answer!

Is it possible to make an expansion card with onboarding DMA controller and current schematics?

It's not only about multitasking in sense of typical multiprocessing OS. What about something like complex video-music handlers? There are portions of code that have to be executed periodically. Like a complex subroutine that can switch the context totally without need to put data in/out of context...

Sorry, this topic is an exact duplicate of that topic -  <iframe allowfullscreen="" data-embedauthorid="1864" data-embedcontent="" data-embedid="embed1863422518" scrolling="no" style="height:201px;max-width:502px;" data-embed-src="<___base_url___>/index.php?/topic/1341-paging-of-stack/&do=embed...

LOOOL. I came here today RIGHT AFTER I watched exactly the same video ? With exactly the same question. What a coincidence.

"It's more a theoretical question."