Commander X16

5 minutes ago, m00dawg said:

Moving it to the ZP makes things faster though yeah? Splitting hairs, but I think I would have preferred them to have been at the top of the ZP than the bottom but I'm very green when it comes to assembly language programming - though it is something I'm excited to get further into!



One thing I was wondering about was the need for using an ATX power supply. I've seen ITX motherboards that have barrel connector connections for power so I don't know if an ATX supply is strictly required here, but seems to be causing some headaches. I think I'd personally favor a normal ole mechanical power switch myself. The motherboard itself runs on 5V I thought? Perhaps the VERA is requiring 3.3V here but even then, making a DC-to-DC supply wouldn't be too troublesome (perhaps less than trying to figure out the soft switch).



Just thinking aloud there, I trust that the team knows what they are doing more than I ? Just seemed like a pretty big headache for Kevin for such a simple (but important) function like turning the machine off and on hehe.

2 minutes ago, StephenHorn said:

My guess is the power supply and power switch decisions stem from choice for their case. Instead of designing an entirely custom case, they're modifying an existing case design, because this is much more cost effective.

1 hour ago, m00dawg said:

Moving it to the ZP makes things faster though yeah?

1 hour ago, m00dawg said:

I've also seen cases which are built around just a barrel jack. A space where the PSU might go could be reserved for perhaps a small custom DC-DC power board if required and where the AC plug goes could be just replaced by a simple barrel jack panel.

yes indeed.
But my point was about coherence (there aesthetics too).
It is more coherent to have all "related" things at the same place.
Here, we will have 2 system switches in the ZP, all others in $9F00.

So as the ZP is faster to access, let's have all the sys switches in the ZP. 
Anyway, I do agree it's not that important [emoji846]
It's just I like my system like my whisky, neat [emoji6]

  
Same thoughts here, so I also don't understand the point of ATX PSU yet...  
But I patiently hope X16 team will reveal the reasons.

1 minute ago, Lorin Millsap said:

-1- Because the moment you do that you no longer have access to ZP for use in your programs and that is a really bad thing.



-2-Use if ZP isn’t a little faster it’s a lot faster. ZP can be thought of almost like 256 processor registers.



-3- The 6510 had an IO port built in at $00 and $01.

 

Because the price deal on the cases gives us a power supply built in. It’s less expensive than sourcing an external low noise power supply and it gives us multiple voltages.


Sent from my iPhone using Tapatalk