AGA Games that 'sort of' work on ECS/OCS

ScottC2010 · 13 February 2021, 13:24

I was looking at another thread where some games that are AGA actually are just 2MB Chip and work on ECS like Jungle Strike and thought that was interesting.

As I own a CDTV with 2MB Chip/8MB Fast/Kick 3.1/Super Denise/68010 I thought I would try a few AGA games (I have a 1200 too)

My results from just a couple were interesting:

Zool AGA - Gets to the loading screen (Prepare Yourself)
Trolls AGA - loads into game and is playable (Albeit a garish looking pallet)
Nigel Mansell - Gets to loading screen

It would be useful to see if anyone else has tried doing this and what kinds results have been achieved (Also if anyone has say similar spec to me but maybe an A3000 with graphics card)

Remember to include your OCS/ECS machine specs and processor

jotd · 13 February 2021, 14:55

Master Axe needs 2mb chip and a 68020 because of odd word reads. but it can be patched for 68000 (whdload slave does that). and maybe 1mb chip....

apart from that most AGA games have a ecs version, better play the ecs version

ScottC2010 · 14 February 2021, 14:52

Quote:

Originally Posted by jotd

Master Axe needs 2mb chip and a 68020 because of odd word reads. but it can be patched for 68000 (whdload slave does that). and maybe 1mb chip....

apart from that most AGA games have a ecs version, better play the ecs version

I wonder if any more games can be patched in this way (Obviously most use 256 colour mode and other things though that OCS/ECS will never be able to do)

Aardvark · 14 February 2021, 16:18

Dungeon Master II and Code Name Hell Squad both needs 2MB chip but not AGA.

d4rk3lf · 14 February 2021, 16:24

Nemac IV and Gloom, but I think they still require 020 minimum, but doesn't require Aga Chipset.

dlfrsilver · 14 February 2021, 16:34

Primal Rage

2mb of chip, but 020 is not required.

Retro1234 · 14 February 2021, 16:46

Quote:

Originally Posted by ScottC2010

Trolls AGA - loads into game and is playable (Albeit a garish looking pallet)

never heard of this can you post a pic

jotd · 14 February 2021, 16:53

Quote:

I wonder if any more games can be patched in this way (Obviously most use 256 colour mode and other things though that OCS/ECS will never be able to do)

2MB+ECS+need 68020 probably can be patched for 68000. But the speed can be an issue then.

d4rk3lf · 14 February 2021, 17:05

Quote:

Originally Posted by jotd

2MB+ECS+need 68020 probably can be patched for 68000. But the speed can be an issue then.

What if I overclock my 68000 to 42Mhz, with Aca500+?

I didn't had idea it was possible to patch.

Well... if you have nothing of more importance to do, I'd like to try Nemac IV or Gloom, on my A500, somewhere in the future.

ScottC2010 · 15 February 2021, 04:54

Quote:

Originally Posted by Retro1234

never heard of this can you post a pic

Hi,
I will run one out for you in tomorrow

jotd · 15 February 2021, 09:22

raise mantis tickets if a whdload game almost works on 68000!

Solo Kazuki · 15 February 2021, 13:37

Quote:

Originally Posted by jotd

raise mantis tickets if a whdload game almost works on 68000!

I think OP means rather "almost works on OCS/ECS"...

ScottC2010 · 15 February 2021, 16:20

My Video (3 Parts) - This is my first ever video up to the internet!

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ScottC2010 · 15 February 2021, 17:09

Quote:

Originally Posted by d4rk3lf

What if I overclock my 68000 to 42Mhz, with Aca500+?

I didn't had idea it was possible to patch.

Well... if you have nothing of more importance to do, I'd like to try Nemac IV or Gloom, on my A500, somewhere in the future.

The folling package may be of help:

http://aminet.net/package/util/misc/Run68017

jotd · 15 February 2021, 18:25

run68017 isn't magical. For instance it's very hard to emulate odd long/word address read.

ScottC2010 · 15 February 2021, 18:30

Quote:

Originally Posted by jotd

run68017 isn't magical. For instance it's very hard to emulate odd long/word address read.

I guess the best thing might be disassembling with something like ADis?

Seiya · 15 February 2021, 19:06

i tried the same configuration via WinUAE of ScottC2010 but with 68000 cpu, 2 MB chip, 8 MB Fast Zorro2 and OCS chipset and kick 3.1)
this is result:

of course normally an AGA games don't run because search AGA chipset. Trolls is not 100% AGA maybe.

dodke · 15 February 2021, 19:45

Trolls seems to basically have just an extra 16 colour background playfield on AGA. Obviously that doesn't work on OCS but why not simply play the OCS version?

jotd · 15 February 2021, 21:04

even disassembling isn't going to help when reading longwords on odd addresses. Only running the game on a 68000 can find such errors.

ScottC2010 · 16 February 2021, 00:19

Quote:

Originally Posted by dodke

Trolls seems to basically have just an extra 16 colour background playfield on AGA. Obviously that doesn't work on OCS but why not simply play the OCS version?

Purely out of curiosity - that's all, though like desert strike there may be some more aga games that will work on an expanded machine which is always nice for extra sound effects and maybe extra background graphics, but mainly just for fun!

13 February 2021, 13:24	#1
ScottC2010 Registered User Join Date: Apr 2017 Location: Leamington Spa / Warwickshire Posts: 532	AGA Games that 'sort of' work on ECS/OCS I was looking at another thread where some games that are AGA actually are just 2MB Chip and work on ECS like Jungle Strike and thought that was interesting. As I own a CDTV with 2MB Chip/8MB Fast/Kick 3.1/Super Denise/68010 I thought I would try a few AGA games (I have a 1200 too) My results from just a couple were interesting: Zool AGA - Gets to the loading screen (Prepare Yourself) Trolls AGA - loads into game and is playable (Albeit a garish looking pallet) Nigel Mansell - Gets to loading screen It would be useful to see if anyone else has tried doing this and what kinds results have been achieved (Also if anyone has say similar spec to me but maybe an A3000 with graphics card) Remember to include your OCS/ECS machine specs and processor

15 February 2021, 16:20	#13
ScottC2010 Registered User Join Date: Apr 2017 Location: Leamington Spa / Warwickshire Posts: 532	My Video (3 Parts) - This is my first ever video up to the internet! [ Show youtube player ] [ Show youtube player ] [ Show youtube player ] Last edited by ScottC2010; 15 February 2021 at 17:48. Reason: Finally Add Part 3 of Video

15 February 2021, 19:06	#17
Seiya Registered User Join Date: Nov 2014 Location: Italy Posts: 2,342	i tried the same configuration via WinUAE of ScottC2010 but with 68000 cpu, 2 MB chip, 8 MB Fast Zorro2 and OCS chipset and kick 3.1) this is result: of course normally an AGA games don't run because search AGA chipset. Trolls is not 100% AGA maybe. Last edited by Seiya; 15 February 2021 at 19:23.

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13 February 2021, 14:55	#2
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 52 Posts: 8,160	Master Axe needs 2mb chip and a 68020 because of odd word reads. but it can be patched for 68000 (whdload slave does that). and maybe 1mb chip.... apart from that most AGA games have a ecs version, better play the ecs version

14 February 2021, 16:18	#4
Aardvark Registered User Join Date: Jan 2019 Location: Finland Posts: 634	Dungeon Master II and Code Name Hell Squad both needs 2MB chip but not AGA.

14 February 2021, 16:24	#5
d4rk3lf Registered User Join Date: Jul 2015 Location: Novi Sad, Serbia Posts: 1,645	Nemac IV and Gloom, but I think they still require 020 minimum, but doesn't require Aga Chipset.

14 February 2021, 16:34	#6
dlfrsilver CaptainM68K-SPS France Join Date: Dec 2004 Location: Melun nearby Paris/France Age: 46 Posts: 10,412	Primal Rage 2mb of chip, but 020 is not required.

15 February 2021, 09:22	#11
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 52 Posts: 8,160	raise mantis tickets if a whdload game almost works on 68000!

15 February 2021, 18:25	#15
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 52 Posts: 8,160	run68017 isn't magical. For instance it's very hard to emulate odd long/word address read.

15 February 2021, 19:45	#18
dodke Registered User Join Date: Feb 2018 Location: London / UK Posts: 112	Trolls seems to basically have just an extra 16 colour background playfield on AGA. Obviously that doesn't work on OCS but why not simply play the OCS version?

15 February 2021, 21:04	#19
jotd This cat is no more Join Date: Dec 2004 Location: FRANCE Age: 52 Posts: 8,160	even disassembling isn't going to help when reading longwords on odd addresses. Only running the game on a 68000 can find such errors.

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