A530 and WHDLOAD

[Snoopy1234]

Originally Posted by sviru

In the user manual there is an info that on the units without MMU it is not important if the jumpers are in off or on position. A530 knows that there is no MMU - this option is for units with MMU - you can switch it off if you want to.

I guess A530 is a broken design for WHDLOAD. Or there is a thing that could be fixed within whdload itself. I will probably go back to HD8+ and look for other accelerator.

That is misrepresenting. The A530 doesn't know there's no MMU. The A530 GVP ROM MMU is always on.
If there is also a full 68030 CPU with MMU, the CPU MMU must be disabled otherwise conflict with the GVP ROM MMU.

[sviru]

Originally Posted by jotd

JST is worth a shot, as it doesn't consider MMU at all Some people reported being able to run games with JST on low-level/exotic configs when whdload crashed.

It's also completely different code, but can run most slaves, so, yes worth a shot.

Tried it now... but no luck. It seems that my mighty 1mb fast on GVP is not enough. Hunting for 4 or 8mb... Not easy.

[jotd]

how much total memory do you have?
what CPU do you have?

[Snoopy1234]

Originally Posted by sviru

Tried it now... but no luck. It seems that my mighty 1mb fast on GVP is not enough. Hunting for 4 or 8mb... Not easy.

I bought a couple of modern TubeTimeus GVP 60ns 4MB simms from lowly_tech on ebay recently. The listing currently says out of stock but could be a long shot. A few sellers come up in google when GVP simm is searched. NB the A530 requires 60ns simms.

[sviru]

Originally Posted by jotd

how much total memory do you have?
what CPU do you have?

EC030
2MB CHIP and 1MB... fast...

ON my HD 8+ I have 4MB and everything flies.

[sviru]

Originally Posted by Snoopy1234

I bought a couple of modern TubeTimeus GVP 60ns 4MB simms from lowly_tech on ebay recently. The listing currently says out of stock but could be a long shot. A few sellers come up in google when GVP simm is searched. NB the A530 requires 60ns simms.

Thanks... searching for them. I found PCB project on PCBWAY as a last resort.

[jotd]

Originally Posted by sviru

EC030
2MB CHIP and 1MB... fast...

ON my HD 8+ I have 4MB and everything flies.

You should be able to run some games with JST that whdload can run with OS flashes, like 1 disked games. I recommend not to softkick (if not native OS2.x), JST can run on kick 1.3, it saves 500Kb


JST can run games on a CDTV with 1MB chip so you should be able to run games too