Demo OCS MadeInCroatia/Binary crash

Zarnal · 24 November 2020, 15:01

Hello,

I've noticed a crash with demo MadeInCroatia/Binary who started with WinUae 4.4.0.

The trackloader starts and then stops before crashing.

QuickStart mode A500.

Thank you.

ross · 24 November 2020, 17:02

Interesting.

What happen is that, at some time, bit #13 of INTENA is improperly set and directly cleared: [

000002BC MOVE.L #$a0002000,(A5,-$0036) <-$dff09a

].
It trigger L6 IRQ because of INTREQ EXTER bit re-set by a previous (CIA-B TOD ALRM?) pending.
The demo destroy exec, on vectors there is the old ROM jump, then system crash.

For some reason on real Amiga this strange combination works...

Toni Wilen · 24 November 2020, 17:28

You missed the next line of disassembly which is the important bit. It is again due CPU IPL timing (and was previously worked around).

ross · 24 November 2020, 17:51

Quote:

Originally Posted by Toni Wilen

You missed the next line of disassembly which is the important bit. It is again due CPU IPL timing (and was previously worked around).

Yes, I've seen the $78 setup

. So you already have plans to fix it in the next version?

Toni Wilen · 24 November 2020, 18:11

Your original post sounds like interrupt never happens in this situation when running on real hardware. Which is not right.

I'll probably add some hack to "fix" this.

ross · 24 November 2020, 18:26

Quote:

Originally Posted by Toni Wilen

Your original post sounds like interrupt never happens in this situation when running on real hardware. Which is not right.

No no, sorry, I wasn't clear

Quote:

Originally Posted by Toni Wilen

I'll probably add some hack to "fix" this.

a/b · 24 November 2020, 22:01

Coder is a talentless hack, obviously ;P.
In any case, there's a better solution than trying to fix that old junk: look for an updated version ("official" v1.1). It should have this line in bootblock (notice 1998):

Code:

	DC.B	"             a BINARY production in 1992-1993,1998              "

heavy · 24 November 2020, 22:29

@a/b exact. found on the scene archives. thanks

ftp://ftp.scene.org/mirrors/the_scen...Croatia_AF.DMS

work fine on winuae 4.4

Toni Wilen · 25 November 2020, 19:22

"Fixed". If long write, check IPL after first word has been written.

24 November 2020, 17:02	#2
ross Defendit numerus Join Date: Mar 2017 Location: Crossing the Rubicon Age: 53 Posts: 4,468	Interesting. What happen is that, at some time, bit #13 of INTENA is improperly set and directly cleared: [ 000002BC MOVE.L #$a0002000,(A5,-$0036) <-$dff09a ]. It trigger L6 IRQ because of INTREQ EXTER bit re-set by a previous (CIA-B TOD ALRM?) pending. The demo destroy exec, on vectors there is the old ROM jump, then system crash. For some reason on real Amiga this strange combination works...

24 November 2020, 22:01	#7
a/b Registered User Join Date: Jun 2016 Location: europe Posts: 1,038	Coder is a talentless hack, obviously ;P. In any case, there's a better solution than trying to fix that old junk: look for an updated version ("official" v1.1). It should have this line in bootblock (notice 1998): Code: DC.B " a BINARY production in 1992-1993,1998 "

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24 November 2020, 15:01	#1
Zarnal Registered User Join Date: Feb 2018 Location: France Posts: 504	Demo OCS MadeInCroatia/Binary crash Hello, I've noticed a crash with demo MadeInCroatia/Binary who started with WinUae 4.4.0. The trackloader starts and then stops before crashing. QuickStart mode A500. Thank you. Last edited by Zarnal; 17 May 2021 at 19:12.

24 November 2020, 17:28	#3
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	You missed the next line of disassembly which is the important bit. It is again due CPU IPL timing (and was previously worked around).

24 November 2020, 18:11	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	Your original post sounds like interrupt never happens in this situation when running on real hardware. Which is not right. I'll probably add some hack to "fix" this.

24 November 2020, 22:29	#8
heavy noodle Join Date: Jun 2007 Location: europe Posts: 247	@a/b exact. found on the scene archives. thanks ftp://ftp.scene.org/mirrors/the_scen...Croatia_AF.DMS work fine on winuae 4.4

25 November 2020, 19:22	#9
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,502	"Fixed". If long write, check IPL after first word has been written.

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