Introducing Warp3D Nova for AmigaOS 4.1

[Rotzloeffel]

So what is the problem (aside from missing slots for more RAM chips) to add more RAM to a CSPPC?
I always thought 128mB is too little RAM for such a system...

It is because of the Memory-Map of the A3000/4000....

$0400 0000 - $07FF FFFF         Motherboard Fast RAM

$0800 0000 - $0FFF FFFF    Coprocessor Slot Expansion

$1000 0000 - $7FFF FFFF      Zorro III Expansion

so only 128 MB Ram are adressable to the Processor-Slot

[Rotzloeffel]

Hmmm - difficult to believe.

Aside from 2 mB CHIP RAM, I do not use the adress space for the mobo ram at all, as I have my 128 mB of 64 bit ram on the CSPPC.
Does the CSPPC count as "Coprocessor Slot Expansion"?

YES! It is different in the A1200.... there is NO MOBO-Fastmem and NO Zorro III... So Blizzard with SCSI-Module or BlizzardPPC can use 256 MB or more...

It is really hard to believe that just 128 mB out of the 4096 mB of RAM the 060 can directly address are left for real, physical RAM...

It means that 3968 mB are reserved for the "Memory-Map of the A3000/4000", right?

Zorro III Space YES. So think about a Mediatorboard in your A4000 with a 256 MB GFX-Card and 4 ZoRAM Boards That is more than 1 GB of Adressspace.... build a ZoRAM++ with 1 GB for example....
 

And this is "hard wired" and cannot be changed?
:shocked:

YES

No way to use unused parts of this "Memory-Map of the A3000/4000" for real, physical RAM?

Bummer - that's really disappointing...

Maybe with a Hack something like the 64MB MOBO-Fastram-Hack.... but I have no Idea if this works.....

The aktual update for OS4.1 FE includes a new Feature that you could use Zorro 3 RAM as RAM instead of SWAP-Space. I think they managed it to "swap" parts of the Cyberstorm Memory with Z3-Ram. Let us call it an intelligent "copy" Routine.....so there will be more RAM available, wenn the update comes out.

[Rotzloeffel]

I'm wondering how the Performance is, given the fact that CSPPC's RAM is 64 Bit wide and ZorRAM's is just 32 Bit. I might get better transfer rates with a real harddrive on the UW-SCSI of the CSPPC...

Most of the Mediatorboards have PCI AND ZorroIII so you can install 4 PCI cards AND 4 ZoRAM-Boards if you want.......

Performance was allways the reason for not using Z3-Memory in 4.1 but I think they managed it to get it faster.... think about the WinUAE-users.... they are also limited on 128 MB Fastmem.... they also managed it to use more than 2 GMB Ram on the NG-Amigas.... so let´s wait for the update.....

The informations about more FastRam are very reliable