68060 on ACA500 Amiga 500

[mjnurney]

As an experiment , i have tried and now have running a Blizzard 68060 on an ACA500 ... Amiga A500!!!!

more testing to do but I'm tired now but here it is, the 3.1 rom selection will not boot the 060 (you get a yellow screen / rainbow crash) but the 1.3 rom will and shows full 68060 and Ram and it boots from floppy....

sysinfo , demos etc later, i'll also try the scsi and 128mb

Specs

Amiga 1.3 512k , 512k OCS Rev5
blizzard 68060
ACA500 2mb fast

Also the 1.3 cannot boot in to 3.1 hard drives , so i'll format a 1.3 setup on a spare CF card and see what happens..

mike

Worlds first??? probably not surely this needs a separate photo booth moment...

http://youtu.be/eNCe1KsLcO4

 

[DutchinUSA]

Nice

Almost makes me want to buy the ACA500 .. wait .. should I?

 

[NovaCoder]

Awesome it should be able to run ScummVM ECS well with that config

 

[tokyoracer]

If only there was a case for it...

 

[mjnurney]

A case.... That my next project.

 

[roy_bates]

which 3.1 did you try mike?

 

[Astral]

Abso-freakin'-lutey awesome!

How fast is WB1.3 on the 060?

I'm sure different tests are in the cards...but maybe a soft kicked 2.0/3.0/3.1 of various types (500/600/1200) will work?

Mmmmmm....BlizzardPPC / 060 / BlizzardVision anyone?

 

[Toni.Wilen]

IMO it is "working" but it is most likely really slow.. (compared to "real" 68040/060)

AFAIK 68040+ cache line fill burst fetches are not compatible with 16-bit data bus. (ACA500 and A500) and it "works" because 1.3 won't enable any 68040/060 caches or features. 3.x (perhaps even 2.x) enables instruction cache automatically (=crash).

 

[Xanxi]

I'm looking forward to read more about this.

What about using a real 2.x/3.x ROM on the mobo?

 

[Paul_s]

IMO it is "working" but it is most likely really slow.. (compared to "real" 68040/060)

AFAIK 68040+ cache line fill burst fetches are not compatible with 16-bit data bus. (ACA500 and A500) and it "works" because 1.3 won't enable any 68040/060 caches or features. 3.x (perhaps even 2.x) enables instruction cache automatically (=crash).

yes, the 500 isn't exactly optimised for it Cool nonetheless

 

[Tahoe]

Worlds first??? surely this needs a separate photo booth moment...

Not really, sorry I ran my Blizzard1260 on the ACA more than a month ago, but not being able to use kickstart 3.1 is a problem.

BTW: running a BlizzardPPC won't work, so running AmigaOS4.1 in the Amiga 500 is a no go for now... (that would have been a first!)

---------- Post added at 09:40 ---------- Previous post was at 09:40 ----------

Mmmmmm....BlizzardPPC / 060 / BlizzardVision anyone?

Doesn't work, sorry

 

[fitzsteve]

Do you think there's potential for a 68060 library that would work on the 16bit bus then (disabling the cache?)

I'm sure it would still be advantageous to have at least the Ram and some CPU boost, would it still be faster then an 030?

Can you get a MIP's output in SysInfo Mike or does that guru?

 

[BlindGerMan]

But KS 1.3 uses no Caches, so this 060 solution is not really fast...

 

[Toni.Wilen]

I guess it should be possible to create ACA500 specific MMU tables but it would not be compatible with any existing 680x0.library or any program that requires MMU, possibly incompatible with whdload too.

 

[CrashMidnick]

Is it possible for you to do a bustest ? I would like to see the chipram access with it... Thanks.

EDIT : AOS 2.x required... Forget about that

 

[ElectroBlaster]

I think this calls for a....

 

[mjnurney]

true speed will be an issue and its ultimately pointless but hey nice to see WB 1.3 with an 060

I'm sure Jens could get 3.1 running on the 500 if he wanted to....

 

[roy_bates]

which version of 3.1 was you using mike?

 

[mjnurney]

it fails booting from the 3.1 rom on the aca500 roy

 

[ElectroBlaster]

Forgive me for being a bit dumb but can you re-flash the kickstarts on the ACA500?