OS4 and DKB3128

[alexh]

It's the RAM on the motherboard + RAM on the accelerator and then nothing else?

[alexh]

They should have created a few more HW drivers though.

[alexh]

Eh??

The only reason they chose not to write drivers was that it wasn't on the Hyperion roadmap. (Certainly wasn't a technical reason for most hardware) Classic support was only supposed to be a stepping stone to the Amiga-One so why write drivers for exotic hardware they didn't own?

As for what Kin-Hell wrote about memory.. I think it's bollox. There is absolutely no reason to support motherboard SCSI in OS4!

Why not??

You need a CSPPC for OS4 on A3k/A4kT and so automatically get a much, much faster UW-SCSI3 controller! Instantly making the motherboard SCSI redundant. (If the CSPPC SCSI isn't supported under OS4, then my argument doesn't hold!)

I think the reason there is no Blizzard SCSI support is that if you remember OS4 wasn't destined for that platform until very late in the day. Laziness coupled with economics is why there are no drivers.

[alexh]

Kin-Hell wrote:
It`s clever in so far as the way OS4 was originally developed for other hardware in the first place & not Commodores Chipset.

I think it was the other way around. It was started on the classic using CSPPC while they waited for the Amiga-One hardware to arrive.

Kin-Hell wrote:
At least OS3.9 still ran on the 060 with WARP etc using the PPC where it could.

I think that by keeping the 060 on the bus, you effectively cripple the PPC and so OS4 switches it off.

Kin-Hell wrote:
Amigas were all about SCSI & slower devices on the SCSI III chain will be detremental to the SCSI III performance.
Such a shame. :-(

The slowest device determines the maximum bus speed?? Even if it is not in use? Bummer indeed. It means you need to use an IDE CD/DVD :-)

[alexh]

I am almost sure they never intended to release OS4 classic but with the death of Amiga-One they had to re-think. There was probably a deadline and they just had to go with what they had.

[alexh]

??