RISC OS Open: Forum: Acorn Games

Feb 3, 2014 9:18am

Hi!
Im thinking about buying the raspberry pi and running the Risc OS. I just want to find out if there is an reason to do it. :)

If I’ll understand there is no way of running old games like “lemmings 2” or “lotus turbo” beacuse they have 26bit architecture?

Ive heard about emulators, but I can run them om PC, and therefore its not cool…
Is there any games that works without emulation? Doom should be 32 bit right?

Feb 3, 2014 9:27am

Malcolm Hussain-Gambles (1596) 811 posts

Look at The Archimedes Software Preservation Project and ADFFS.
You should be able to run quite a lot of games on the Pi without issue now.
For the others I use !ArcEM which as the name suggests is an emulator.
Lemmings is on their list of games…

Feb 3, 2014 9:43am

staffan mattsson (2304) 2 posts

Thank you! I guess I can run the games which are marked “ARM 11” cpu, and not strong ARM?

Feb 3, 2014 9:54am

Jon Abbott (1421) 2651 posts

This list of games that run natively+ under ADFFS is rather limited at the moment, its very early beta and several issues hamper most games working with it currently:

1. The time it takes to test games and work out a Boot script (which is used instead of !Run) to get them running on all machines from A3xx up to the Pi.
2. Lack of IOC chip emulation. Lemmings and Lotus Turbo Challenge 2 both require this.
3. Lack of 26bit module support. I started looking at this over the weekend.

Having said all that, using the games that the project have now released in conjunction with ADFFS under ArcEm, you can get most if not all games running on the Pi.

Lotus Turbo Challenge 2 is one we can release, so I should probably get that up on the site as an initial release for RO3.1 only.

+natively: 99% runs natively. VIDC1/20 changes are translated, MEMC is mostly ignored and IOC has yet to be looked at. Some SWI’s are hypervised or replaced to protect the OS or return values a RO3.1 app would expect. All machine code is passed through a one-time JIT to translate non-32bit instructions into their ARM11/SA equivalent. An average of 10% of instructions are translated.

Feb 3, 2014 9:58am

Jon Abbott (1421) 2651 posts

Staffan, you’ll need the latest ADFFS beta at the bottom of which are links to the games that we’ve released that run under it.

The rest of the games will all work under ArcEm.

Acorn Games

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Feb 3, 2014 9:18am staffan mattsson (2304) 2 posts	Hi! Im thinking about buying the raspberry pi and running the Risc OS. I just want to find out if there is an reason to do it. :) If I’ll understand there is no way of running old games like “lemmings 2” or “lotus turbo” beacuse they have 26bit architecture? Ive heard about emulators, but I can run them om PC, and therefore its not cool… Is there any games that works without emulation? Doom should be 32 bit right?

Feb 3, 2014 9:27am Malcolm Hussain-Gambles (1596) 811 posts	Look at The Archimedes Software Preservation Project and ADFFS. You should be able to run quite a lot of games on the Pi without issue now. For the others I use !ArcEM which as the name suggests is an emulator. Lemmings is on their list of games…

Feb 3, 2014 9:43am staffan mattsson (2304) 2 posts	Thank you! I guess I can run the games which are marked “ARM 11” cpu, and not strong ARM?

Feb 3, 2014 9:54am Jon Abbott (1421) 2651 posts	This list of games that run natively+ under ADFFS is rather limited at the moment, its very early beta and several issues hamper most games working with it currently: 1. The time it takes to test games and work out a Boot script (which is used instead of !Run) to get them running on all machines from A3xx up to the Pi. 2. Lack of IOC chip emulation. Lemmings and Lotus Turbo Challenge 2 both require this. 3. Lack of 26bit module support. I started looking at this over the weekend. Having said all that, using the games that the project have now released in conjunction with ADFFS under ArcEm, you can get most if not all games running on the Pi. Lotus Turbo Challenge 2 is one we can release, so I should probably get that up on the site as an initial release for RO3.1 only. +natively: 99% runs natively. VIDC1/20 changes are translated, MEMC is mostly ignored and IOC has yet to be looked at. Some SWI’s are hypervised or replaced to protect the OS or return values a RO3.1 app would expect. All machine code is passed through a one-time JIT to translate non-32bit instructions into their ARM11/SA equivalent. An average of 10% of instructions are translated.

Feb 3, 2014 9:58am Jon Abbott (1421) 2651 posts	Staffan, you’ll need the latest ADFFS beta at the bottom of which are links to the games that we’ve released that run under it. The rest of the games will all work under ArcEm.