Idea for a compact Amiga 1200 RTG card with a passthrough for an accelerator card

[markpaterson]

The PiStorm 32 is very interesting indeed, especially with Emu68 and bare metal access. But is it cycle accurate? And if not now, could it ever be? And does that matter?

[Romanujan]

Accelerators are not cycle accurate. If you need cycle accuracy, you need plain A1000/A500/A500+/A600/A2000

[Doda]

It's not definitely RTG, but you can use a slightly higher resolution via Indivision AGA thanks to it's own framebuffer. Unfortunately it's not super fast.

[Jpor]

Originally Posted by Doda

It's not definitely RTG, but you can use a slightly higher resolution via Indivision AGA thanks to it's own framebuffer. Unfortunately it's not super fast.

Shame. Would have been interested in getting a Pi Storm. But would miss my nice RTG desktop.

[Exodous]

Originally Posted by Jpor

Shame. Would have been interested in getting a Pi Storm. But would miss my nice RTG desktop.

The way I read Doda's post is that it is suggesting that the Indivision AGA was an option for improved graphics, but that the Indivision isn't an RTG.


I don't think it was in reference to the PiStorm, which appears to the Amiga as an RTG.

[Jpor]

Originally Posted by Exodous

The way I read Doda's post is that it is suggesting that the Indivision AGA was an option for improved graphics, but that the Indivision isn't an RTG.


I don't think it was in reference to the PiStorm, which appears to the Amiga as an RTG.

Interesting.

P96 compatible then?

[Exodous]

Originally Posted by Jpor

P96 compatible then?

Yes... according to these instructions https://github.com/captain-amygdala/...wiki/Setup-RTG

[Lisko]

What I don't like much about pistorm or even the vampire for that matter is that you are basically using the amiga just for powering a raspberry pi. I know that even a real accelerator + rtg will pretty much bypass all of the amiga motherboard and it's why I will prefer an affordable modern scsi solution for the blizzard rather than an rtg card. But anyone has its preferences and ways of using their amigas.

[btp]

@Lisko not true. With PiStorm all of the Amiga's custom chips are usable and working as normal. The RPi only emulates a 68K CPU accelerator and (if the user wants to) additional add-ons such as hard disks, RTG video, AHI sound, network interface. All software that needs access to the Amiga's chipset they can have it.

[Lisko]

Originally Posted by btp

@Lisko not true. With PiStorm all of the Amiga's custom chips are usable and working as normal. The RPi only emulates a 68K CPU accelerator and (if the user wants to) additional add-ons such as hard disks, RTG video, AHI sound, network interface. All software that needs access to the Amiga's chipset they can have it.

Yes but if using all of the above options (rtg, ahi sound card, disks and network) the custom chipset isn't doing anything, all happens and even output from the emulator on the raspberry. I don't want to criticize anything, I'm just saying that from my point of view I prefer a classic accelerator with an 030/040/060+ppc in my real amiga and having a separate raspberry for rtg+ahi+... needs and is virtually the same thing. Using the pistorm only as a cpu upgrade for me it makes more sense as a cheap upgrade path but if you already have even an 030 with 32 bit memory, it makes more sense having the raspberry for standalone usage. Fpga and period correct expansions are another story and I could see them interesting. Obviously this is just my opinion on the matter and as long as you are enjoying you can do whatever you want.

[S0ulA55a551n]

Originally Posted by btp

@Lisko not true. With PiStorm all of the Amiga's custom chips are usable and working as normal. The RPi only emulates a 68K CPU accelerator and (if the user wants to) additional add-ons such as hard disks, RTG video, AHI sound, network interface. All software that needs access to the Amiga's chipset they can have it.

Not true for vampire either

My questions about pistorm is about slow chip ram access. Will this be improved ? I think the vampire lot have got chip access pretty much at the theoretical max ? Unless I miss understood.

[Jpor]

Originally Posted by Exodous

Yes... according to these instructions https://github.com/captain-amygdala/...wiki/Setup-RTG

Thanks Exodus