Side Project: rPi (CosmosEx) as HDMI graphics card

[Cyprian]

I would suggest to wait until the Apollo Team has published the SAGA core files for the SAGA Project, the SAGA is very fast and there is already an optimized driver..

as a huge fan of Vampire for Atari, I would say at this moment SAGA isn't a good option for Atari. It is caused by the fact SAGA is just extended Amiga chipset AGA. E.g. its hardware address range is taken directly from Amiga: $dfXXXX and doesn't suit Atari hardware address range $ffXXXX

http://wiki.apollo-accelerators.com/dok ... s?s[]=saga

[tuxie]

Whats wrong with this Address range ? What is located there on Atari Side ? And there is already a driver and also we are working on a Sound Driver based on the Magixsound driver from Didier... So whats wrong with it ?

[Cyprian]

Whats wrong with this Address range ? What is located there on Atari Side ? And there is already a driver and also we are working on a Sound Driver based on the Magixsound driver from Didier... So whats wrong with it ?

1) It just overlaps with Atari hardware map:

Hardware registers/ROM/Cartridge: $Fxxxxx - $FFFFFF
ROM: $E00000 - $EFFFFF
VME: $A00000 - $DFFFFF
ST-RAM: $000000 - $3FFFFF
ALT-RAM: $400000 - $DFFFFF

2) why should we use Amiga hardware IO when we could have compatible with Atari

[tuxie]

Whats wrong with this Address range ? What is located there on Atari Side ? And there is already a driver and also we are working on a Sound Driver based on the Magixsound driver from Didier... So whats wrong with it ?

1) It just overlaps with Atari hardware map:

Hardware registers/ROM/Cartridge: $Fxxxxx - $FFFFFF
ROM: $E00000 - $EFFFFF
VME: $A00000 - $DFFFFF
ST-RAM: $000000 - $3FFFFF
ALT-RAM: $400000 - $DFFFFF

2) why should we use Amiga hardware IO when we could have compatible with Atari

ALT-RAM is only used when it exisit, should not get any error !!

2. Because it exisit, for Atari there is no FPGA GPU existing!! Or is there a powerfull one ? And Amiga is 68k too so why not ? Stop this WAR please!!!
Then when we have the code, we could also change the addresses!!!

[Cyprian]

ALT-RAM is only used when it exisit, should not get any error !!

2. Because it exisit, for Atari there is no FPGA GPU existing!! Or is there a powerfull one ? And Amiga is 68k too so why not ?

there is no GPU in SAGA, Isn't it?
I'ts just VIDEL equivalent.

Just to clarify, we are talking about SAGA only, not about Vampire and 68080 core.

Stop this WAR please!!!

there is no any war here.

As I mentioned I'm Vampire fan, and waiting for ST version.
But Amiga in ST or ST (EmuTOS) in Amiga is out of my interest.

Then when we have the code, we could also change the addresses!!!

That's what we need, Atari compatible hardware. I guess it would be easy to adopt SAGA to Atari.

[Cyprian]

That's what we need, Atari compatible hardware. I guess it would be easy to adopt SAGA to Atari.

there is another option - SuperVidel core. What is it status? Is it open, freeware?

That option would be the best due to performance and compatibility level.

[Smonson]

For those who don't already know, I have a HDMI/DVI mod for STFMs - if you just want to use the three stock ST video modes on an HDMI monitor. It uses an FPGA to replace the shifter chip.

All the details are in this thread: viewtopic.php?f=29&t=330

[Cyprian]

For those who don't already know, I have a HDMI/DVI mod for STFMs - if you just want to use the three stock ST video modes on an HDMI monitor. It uses an FPGA to replace the shifter chip.

All the details are in this thread: viewtopic.php?f=29&t=330

It's well known to me, and I watch it with interest.