Cybernoid the Fighting Machine

dlfrsilver · 18 April 2018, 17:36

Hi Toni, I need your insight about the game Cybernoid the Fighting Machine.

I'm using Winuae with your A500 config file, and the CTraw dump i made, and which has no disk error and that is not modified.

The game use a long track for protection sized $3380, and all the other tracks are AmigaDos.

The game loading stops on track 3, and winuae breaks each time.

Can you help me by checking where could stand the problem ?

The CTraw file is in the Zone.

Toni Wilen · 18 April 2018, 17:40

Moved. You are not getting it by posting in totally wrong thread.

dlfrsilver · 18 April 2018, 17:47

Quote:

Originally Posted by Toni Wilen

Moved. You are not getting it by posting in totally wrong thread.

Ah ok. But then can you load the CTraw and tell me what kind of bizarre thing makes Winuae stopping on loading please ?

ross · 18 April 2018, 18:00

Just tried with quickstart A500 KS1.2 OCS 512MB chip and works

Edit: seems that it doesn't like fastmem
work also for >=KS1.3 ECS 1MB chip machine

StingRay · 18 April 2018, 18:07

Quote:

Originally Posted by ross

Just tried with quickstart A500 KS1.2 OCS 512MB chip and works

I'd like to have such an OCS machine too.

On topic: boot is neatly encrypted.

ross · 18 April 2018, 18:17

Quote:

Originally Posted by StingRay

I'd like to have such an OCS machine too.

megalol

Quote:

On topic: boot is neatly encrypted.

yes, I was just looking now

Toni Wilen · 18 April 2018, 18:25

It looks like it does some chip memory copying and assumes something that is not true if fast RAM exists. Probable reason is game's AllocMem(x,MEMF_CHIP) call returning "too small" start address because most of OS structures get allocated from fast ram if fast ram is available.

StingRay · 18 April 2018, 18:38

Quote:

Originally Posted by ross

yes, I was just looking now

Can be easily defeated though as there are not that many different decryption loops (so coding an "intelligent" decrypter which "guesses" next decryption loop is possible). I do like the movep loop though.

dlfrsilver · 18 April 2018, 18:46

Thank you gentlemen

PS : I forgot something. The longtrack use a Weak Bits part....

This means no IPF possible.

ross · 18 April 2018, 19:17

Quote:

Originally Posted by Toni Wilen

It looks like it does some chip memory copying and assumes something that is not true if fast RAM exists. Probable reason is game's AllocMem(x,MEMF_CHIP) call returning "too small" start address because most of OS structures get allocated from fast ram if fast ram is available.

yes, practically code overwrite itself
there is a long ($8db8 bytes) copy to fixed address $88 and code executing the loop is from a low address (near $8000) due to a previous chipmem allocation (in chip only machine this low address is everytime already used)

ross · 18 April 2018, 20:43

[OT]
@StingRay, revenge.

From Ziriax WHDLoad:

; v1.3ß, 14.03.2918, ross [me and stingray, we are from the future

]
; - Ultimate version support

; v1.2, 14.02.2918, stingray
; - ButtonWait support added (Mantis #3816)

StingRay · 19 April 2018, 00:07

Haha, I made that in the future because I needed to test on the 512MB OCS machine which wasn't possible yet in 2018.

In other news, just for fun I've coded a decrypter for the Cybernoid bootloader, didn't take long and there are only 123 decryption loops (not counting the one which decrypts the final piece of code once protection track has been checked) which is kinda disappointing as the fun was over before it even started. :P

ross · 19 April 2018, 07:26

Quote:

Originally Posted by StingRay

Haha, I made that in the future because I needed to test on the 512MB OCS machine which wasn't possible yet in 2018.

ROFLMAO

Quote:

In other news, just for fun I've coded a decrypter for the Cybernoid bootloader, didn't take long and there are only 123 decryption loops (not counting the one which decrypts the final piece of code once protection track has been checked) which is kinda disappointing as the fun was over before it even started. :P

malko · 19 April 2018, 23:07

Quote:

Originally Posted by dlfrsilver

[...] PS : I forgot something. The longtrack use a Weak Bits part....
This means no IPF possible.

So it exists games that cannot be preserved by SPS/KryoFlux ?...
Did not know about it.

dlfrsilver · 19 April 2018, 23:08

Quote:

Originally Posted by malko

So it exists games that cannot be preserved by SPS/KryoFlux ?...
Did not know about it.

The CTA is not supporting ALL the weak bits games. Only some of them.

malko · 19 April 2018, 23:22

Reading the CTA presentation page I understood that formats not recognized automatically can be scripted manually. No ?

dlfrsilver · 20 April 2018, 00:04

Quote:

Originally Posted by malko

Reading the CTA presentation page I understood that formats not recognized automatically can be scripted manually. No ?

Yes, but i don't have the "manual" for that.

StingRay · 20 April 2018, 07:52

Quote:

Originally Posted by malko

So it exists games that cannot be preserved by SPS/KryoFlux ?...
Did not know about it.

There is an SPS image available for Cybernoid and I have compared the files, they are exactly the same as in dlfrsilver's image.

malko · 20 April 2018, 09:30

Thanks for the precisions mates

dlfrsilver · 20 April 2018, 14:48

Quote:

Originally Posted by StingRay

There is an SPS image available for Cybernoid and I have compared the files, they are exactly the same as in dlfrsilver's image.

Ok, i must see with IFW then. Because the CTA as it is is not making a working IPF out of the CTraw file i posted.

18 April 2018, 17:36	#1
dlfrsilver CaptainM68K-SPS France Join Date: Dec 2004 Location: Melun nearby Paris/France Age: 46 Posts: 10,413	Cybernoid the Fighting Machine Hi Toni, I need your insight about the game Cybernoid the Fighting Machine. I'm using Winuae with your A500 config file, and the CTraw dump i made, and which has no disk error and that is not modified. The game use a long track for protection sized $3380, and all the other tracks are AmigaDos. The game loading stops on track 3, and winuae breaks each time. Can you help me by checking where could stand the problem ? The CTraw file is in the Zone. Last edited by dlfrsilver; 31 August 2021 at 22:46.

18 April 2018, 18:00	#4
ross Defendit numerus Join Date: Mar 2017 Location: Crossing the Rubicon Age: 53 Posts: 4,468	Just tried with quickstart A500 KS1.2 OCS 512MB chip and works Edit: seems that it doesn't like fastmem work also for >=KS1.3 ECS 1MB chip machine Last edited by ross; 18 April 2018 at 18:05.

18 April 2018, 18:46	#9
dlfrsilver CaptainM68K-SPS France Join Date: Dec 2004 Location: Melun nearby Paris/France Age: 46 Posts: 10,413	Thank you gentlemen PS : I forgot something. The longtrack use a Weak Bits part.... This means no IPF possible. Last edited by dlfrsilver; 31 August 2021 at 22:46.

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18 April 2018, 17:40	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	Moved. You are not getting it by posting in totally wrong thread.

18 April 2018, 18:25	#7
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,505	It looks like it does some chip memory copying and assumes something that is not true if fast RAM exists. Probable reason is game's AllocMem(x,MEMF_CHIP) call returning "too small" start address because most of OS structures get allocated from fast ram if fast ram is available.

18 April 2018, 20:43	#11
ross Defendit numerus Join Date: Mar 2017 Location: Crossing the Rubicon Age: 53 Posts: 4,468	[OT] @StingRay, revenge. From Ziriax WHDLoad: ; v1.3ß, 14.03.2918, ross [me and stingray, we are from the future ] ; - Ultimate version support ; v1.2, 14.02.2918, stingray ; - ButtonWait support added (Mantis #3816)

19 April 2018, 00:07	#12
StingRay move.l #$c0ff33,throat Join Date: Dec 2005 Location: Berlin/Joymoney Posts: 6,863	Haha, I made that in the future because I needed to test on the 512MB OCS machine which wasn't possible yet in 2018. In other news, just for fun I've coded a decrypter for the Cybernoid bootloader, didn't take long and there are only 123 decryption loops (not counting the one which decrypts the final piece of code once protection track has been checked) which is kinda disappointing as the fun was over before it even started. :P

19 April 2018, 23:22	#16
malko Ex nihilo nihil Join Date: Oct 2017 Location: CH Posts: 4,856	Reading the CTA presentation page I understood that formats not recognized automatically can be scripted manually. No ?

20 April 2018, 09:30	#19
malko Ex nihilo nihil Join Date: Oct 2017 Location: CH Posts: 4,856	Thanks for the precisions mates

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