Oh no not again - ZEDRAGON II

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kmurta
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Re: Oh no not again - ZEDRAGON II

Post by kmurta » Tue Jun 26, 2018 11:12 pm

I rewrote both the EPROM and the firmware and nothing has changed, I still have error 9 when I try to load the Zedragon :(
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Ringo R470, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org

Moggy
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Re: Oh no not again - ZEDRAGON II

Post by Moggy » Wed Jun 27, 2018 1:18 pm

A problem with the AY unit perhaps? I only say this as it's one of the few games to feature sound effects and music and if your other games work it would suggest the ZXpand is not faulty.

Have you tried changing the 64/128 jumper on the UDG unit to see if that has any effect?

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kmurta
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Re: Oh no not again - ZEDRAGON II

Post by kmurta » Wed Jun 27, 2018 7:10 pm

Moggy wrote:
Wed Jun 27, 2018 1:18 pm
A problem with the AY unit perhaps? I only say this as it's one of the few games to feature sound effects and music and if your other games work it would suggest the ZXpand is not faulty.
No, I'm using only ZXpand and UDG4ZXpand, no other interface.
Have you tried changing the 64/128 jumper on the UDG unit to see if that has any effect?
No, this not make sense but I will try it anyway

Thanks Moggy
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Ringo R470, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org

Moggy
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Joined: Wed Jun 18, 2008 2:00 pm

Re: Oh no not again - ZEDRAGON II

Post by Moggy » Wed Jun 27, 2018 8:13 pm

kmurta wrote:
Wed Jun 27, 2018 7:10 pm
Moggy wrote:
Wed Jun 27, 2018 1:18 pm
A problem with the AY unit perhaps? I only say this as it's one of the few games to feature sound effects and music and if your other games work it would suggest the ZXpand is not faulty.
No, I'm using only ZXpand and UDG4ZXpand, no other interface.
Have you tried changing the 64/128 jumper on the UDG unit to see if that has any effect?
No, this not make sense but I will try it anyway

Thanks Moggy
If you have no AY unit attached then I think that could be the problem as the STC (music) file player built into ZEDRAGON ,I think, will be looking for that device and if it is not there it may be why it is throwing out the hardware error code 9.

Andy is best placed I think to answer that question.

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Andy Rea
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Re: Oh no not again - ZEDRAGON II

Post by Andy Rea » Thu Jun 28, 2018 12:32 pm

Um I'm pretty sure the music player will just carry on regardless... Unless Charlie made some special code to try and detect zon-x Vs Mr X as they are on different ports.

The player itself just sends data out to ports it doesn't care if the port does not exist the data is just lost and nothing bad happens.

Regards andy
AFK

Moggy
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Re: Oh no not again - ZEDRAGON II

Post by Moggy » Thu Jun 28, 2018 3:18 pm

Andy Rea wrote:
Thu Jun 28, 2018 12:32 pm
Um I'm pretty sure the music player will just carry on regardless... Unless Charlie made some special code to try and detect zon-x Vs Mr X as they are on different ports.

The player itself just sends data out to ports it doesn't care if the port does not exist the data is just lost and nothing bad happens.

Regards andy
Yep just tried it on Eighty One without the Zonx and it works so if the emulator is accurately following the real thing then it should be ok on a real zeddy also.

Will dig out my oldest Xpand tonight and see if I can recreate kelly's problem.

Moggy
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Re: Oh no not again - ZEDRAGON II

Post by Moggy » Fri Jun 29, 2018 10:42 pm

Tried it out on an issue 1 and 3 Xspand and alls well at my end so not sure what's going on with kelly's Xpand. :?

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Andy Rea
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Re: Oh no not again - ZEDRAGON II

Post by Andy Rea » Fri Jun 29, 2018 11:33 pm

now then.... IIRC zedragon writes a hi-score to the EEprom on the BigFatPic wonder if that EEprom has become corrupt ? the question is how to test / reset if that is the case ?

We could really do with the master himself...

if you wanna trawl a zillion lines of code its on github.. a quick google search should find it or Click Here

regards Andy
AFK

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kmurta
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Re: Oh no not again - ZEDRAGON II

Post by kmurta » Mon Jul 02, 2018 3:15 pm

I have discovered that error 9 is given only when the autoboot is enabled (CONFIG "C=7F"). With autoboot disabled, I have only the K cursor. My conclusion is that the program load is not completed and so the zeddy is restarted. I'm going to use another ZX81 and ZXpand from a friend to try isolate the source of the problem, if it is on the ZX81 or if it is on ZXpand.

Thank you very much, Andy and Moggy, for your precious attention.
1 x ZX81, 2 x TK85 , 1 TK82C, 1 TK95, 1 x Ringo R470, 1 x Alphacom 32 printer, 1 x ZXpand
ZeXtender board, Joy81 - Programmable Joystick Controller, Turbo Sound 81
http://zx81.eu5.org

Moggy
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Re: Oh no not again - ZEDRAGON II

Post by Moggy » Mon Jul 02, 2018 3:58 pm

I'm sure the autoboot is only there to load the MENU.p file for ZXpand commander so perhaps it's that p file that's corrupt?

Just a thought.


Here's my working menu file for comparison.
Attachments
MENU.P
(8.78 KiB) Downloaded 91 times

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