Slow AGA games played from HD - Page 2

AndersHP · 20 December 2010, 11:24

Can anyone recommend an editor for hacking the LoadSeq()?
Where is it found? Is it part of the "Disk1"-file?

StingRay · 20 December 2010, 13:50

There is no editor for such things, you need programming knowledge to do what jotd described in his post.

Amiga1992 · 20 December 2010, 18:53

I will ask something out of pure ignorance, but I might as well get it out of my chest:
Is there any chance to make WHDLoad detect these ocurrences and load to Fast instead of chip?

StingRay · 20 December 2010, 19:54

Nope that's impossible. WHDLoad can't know which data has to reside in ChipMem and which data can be safely loaded into fast mem. Besides, NDOS games usually don't have any relocation info that normal AmigaDOS executables have so there's no way to find out what to do without disassembling the code. Long story short, it's just not possible, each game has to be patched separately.

AndersHP · 21 December 2010, 08:37

I too will ask something out of pure ignorance, then:
could it be possible that programmers with the skills to do this, could edit/patch the files and share them with the community?

If it's a well known issue, it could maybe be a part of the WHDLoad patches that are already being created to make these games play from HD in the first place...?

I could mention a few games that truly suffers on my machine:
Yo Joe, SWIV, Brutal Football

Arnie · 21 December 2010, 10:40

A bit OT but I've just tried ChaosAGAHD on WinUAE and it wont work with the default A1200 config +4mb fast, it freezes on the Loading screen.
It works if you choose Approximate settings but that slows everything down.
In the end I added NoFileCache and it now works? The Loading screen flashes a bit but at least it loads.

Retro-Nerd · 21 December 2010, 15:12

Chaos Engine AGA should work without any problems. Try WHDLoad 17 Beta if you get a black loading screen.

AndersHP · 22 December 2010, 09:51

Is it possible to easily change settings for WHDLoad that maybe can change these framerate drops?

If it's easy to do, it's worth giving a shot...?

S0ulA55a551n · 22 December 2010, 11:18

Quote:

Originally Posted by AndersHP

Is it possible to easily change settings for WHDLoad that maybe can change these framerate drops?

If it's easy to do, it's worth giving a shot...?

Yeah irs really easy, thats why its already been done.

No wait there ....

roberthazelby · 23 December 2010, 10:07

Quote:

Originally Posted by AndersHP

I could mention a few games that truly suffers on my machine: Yo Joe

Even back in the day when WHDLoad was a mere twinkle in its author's eye, I remember my floppy version of Yo Joe suffering from terrible slowdown.

Amiga1992 · 23 December 2010, 13:36

Quote:

Originally Posted by AndersHP

If it's easy to do, it's worth giving a shot...?

Dude, it has been explained thoroughly in this thread that it is NOT easy.
Why don't you learn ASM and do it yourself ?:P

orange · 23 December 2010, 14:58

Quote:

Originally Posted by AndersHP

Can anyone recommend an editor for hacking the LoadSeq()?
Where is it found? Is it part of the "Disk1"-file?

i heard you need hexeditor for that

Retro1234 · 23 December 2010, 15:27

I should wait for someone who realy know what there talking about

Quote:

Originally Posted by orange

i heard you need hexeditor for that

Yes search for string 5anTa and repalce with 12345

Quote:

Originally Posted by Akira

Dude, it has been explained thoroughly in this thread that it is NOT easy.
Why don't you learn ASM and do it yourself ?:P

Has anyone else had any slowdown on Yo Joe,SWIV etc it seems very unkommon

StingRay · 23 December 2010, 16:14

Quote:

Originally Posted by orange

i heard you need hexeditor for that

You don't need a hex editor for that, in fact, you can use any editor you like as long as you have some Assembler/Compiler which will turn the things you write in the editor of your choice into usable code. As I said before, you can't do this "hack" without programming knowledge, LoadSeg is a function in the dos.library which handles file loading/relocation etc. and patching it is not something you can do without knowledge how that works.

AndersHP · 27 December 2010, 11:49

Quote:

Originally Posted by Akira

Dude, it has been explained thoroughly in this thread that it is NOT easy.

I was referring to a quick change of settings in WHDLoad, not programming. Read my answer again..
If there is a way to quickly change settings in WHDLoad, it is worth trying for me, to narrow down the problem.

Quote:

Originally Posted by StingRay

As I said before, you can't do this "hack" without programming knowledge, LoadSeg is a function in the dos.library which handles file loading/relocation etc. and patching it is not something you can do without knowledge how that works.

OK, I realize that.. And this is where I ask (again): If jotd can change these files (since he has this programming knowledge you mention), would it not be possible for you guys or someone who knows this stuff, to help us out, by uploading/sharing the altered program-files, so that we can try it out on our own machines?

AndersHP · 28 December 2011, 17:44

So, I'm just going to reopen this discussion, since I'm not sure I ever really found a solution for my WHDLoad Framerate problems:

For instance; SWIV drops down to a staggering-low 5 FPS at some points, as well as many other games (Paradroid, Bonanza Bros, I could go on).

Questions:
1. Is the only alternative to WHDLoad really floppies??
2. Can't I upgrade my hardware?
3. I know the slave-files once in a while gets updated to run faster (e.g. run certain things from fast-RAM) - can I find slavefiles/installers other places than WHDLoad/WHDownload? Does any of you programming-dudes upload your own versions of Amiga games?

Retro-Nerd · 28 December 2011, 17:57

I still think it's a hardware issue/hardware-software incompatibility on your side. All the WHDLoad games you've mentioned works with normal speed on my A1200.

AndersHP · 28 December 2011, 18:08

The games all start at a normal framerate, but drops as soon as the activity on the screen gets higher..

What can I do? My A1200 is basically stock, apart from the accelerator. Only thing I can do is remove my accelerator card..?

Retro-Nerd · 28 December 2011, 18:10

Yes, you could try some WHDLoad games which works with plain 2MB Chipram.

AndersHP · 28 December 2011, 18:16

Quote:

Originally Posted by Retro-Nerd

Yes, you could try some WHDLoad games which works with plain 2MB Chipram.

..meaning, that if these doesn't slow down, I have a problem with my fast ram/accelerator?

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20 December 2010, 11:24	#21
AndersHP Registered User Join Date: Aug 2010 Location: Denmark Posts: 124	Can anyone recommend an editor for hacking the LoadSeq()? Where is it found? Is it part of the "Disk1"-file?

20 December 2010, 13:50	#22
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	There is no editor for such things, you need programming knowledge to do what jotd described in his post.

20 December 2010, 18:53	#23
Amiga1992 Registered User Join Date: May 2001 Location: ? Posts: 19,646	I will ask something out of pure ignorance, but I might as well get it out of my chest: Is there any chance to make WHDLoad detect these ocurrences and load to Fast instead of chip?

20 December 2010, 19:54	#24
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	Nope that's impossible. WHDLoad can't know which data has to reside in ChipMem and which data can be safely loaded into fast mem. Besides, NDOS games usually don't have any relocation info that normal AmigaDOS executables have so there's no way to find out what to do without disassembling the code. Long story short, it's just not possible, each game has to be patched separately.

21 December 2010, 08:37	#25
AndersHP Registered User Join Date: Aug 2010 Location: Denmark Posts: 124	I too will ask something out of pure ignorance, then: could it be possible that programmers with the skills to do this, could edit/patch the files and share them with the community? If it's a well known issue, it could maybe be a part of the WHDLoad patches that are already being created to make these games play from HD in the first place...? I could mention a few games that truly suffers on my machine: Yo Joe, SWIV, Brutal Football

21 December 2010, 10:40	#26
Arnie R.I.P Smudge 18-08-16 Join Date: Aug 2005 Location: Leicester/UK Age: 66 Posts: 3,968	A bit OT but I've just tried ChaosAGAHD on WinUAE and it wont work with the default A1200 config +4mb fast, it freezes on the Loading screen. It works if you choose Approximate settings but that slows everything down. In the end I added NoFileCache and it now works? The Loading screen flashes a bit but at least it loads.

21 December 2010, 15:12	#27
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,453	Chaos Engine AGA should work without any problems. Try WHDLoad 17 Beta if you get a black loading screen.

22 December 2010, 09:51	#28
AndersHP Registered User Join Date: Aug 2010 Location: Denmark Posts: 124	Is it possible to easily change settings for WHDLoad that maybe can change these framerate drops? If it's easy to do, it's worth giving a shot...?

28 December 2011, 17:44	#36
AndersHP Registered User Join Date: Aug 2010 Location: Denmark Posts: 124	So, I'm just going to reopen this discussion, since I'm not sure I ever really found a solution for my WHDLoad Framerate problems: For instance; SWIV drops down to a staggering-low 5 FPS at some points, as well as many other games (Paradroid, Bonanza Bros, I could go on). Questions: 1. Is the only alternative to WHDLoad really floppies?? 2. Can't I upgrade my hardware? 3. I know the slave-files once in a while gets updated to run faster (e.g. run certain things from fast-RAM) - can I find slavefiles/installers other places than WHDLoad/WHDownload? Does any of you programming-dudes upload your own versions of Amiga games?

28 December 2011, 17:57	#37
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,453	I still think it's a hardware issue/hardware-software incompatibility on your side. All the WHDLoad games you've mentioned works with normal speed on my A1200.

28 December 2011, 18:08	#38
AndersHP Registered User Join Date: Aug 2010 Location: Denmark Posts: 124	The games all start at a normal framerate, but drops as soon as the activity on the screen gets higher.. What can I do? My A1200 is basically stock, apart from the accelerator. Only thing I can do is remove my accelerator card..?

28 December 2011, 18:10	#39
Retro-Nerd Missile Command Champion Join Date: Aug 2005 Location: Germany Age: 52 Posts: 12,453	Yes, you could try some WHDLoad games which works with plain 2MB Chipram.

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