Excessive stack overflow in SP3

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Svuppe
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Posted by Svuppe: Sun. Jul 30, 2006 - 09:36 AM
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Hi.

I am trying to simulate an old and perfectly working assembler program for a Mega16. I have recently upgraded to SP3 build 490, but now the simulator gives me "AVR Simulator: Excessive stack overflow, stop sim" at a specific program location. And the stack is not overflowed at all (only 6 bytes used).
The simulator also stops at another program line, but without any warnings or anything. Just like there was a breakpoint there, but there isn't.

Does this sound familiar to anyone?
Is there anything I can do to get my simulator to work again, apart from a total reinstall?

Tags:

Tools, Atmel Studio (AVR-related)
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Trevor_G
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Posted by Trevor_G: Mon. Jul 31, 2006 - 07:42 PM
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See my post :
https://www.avrfreaks.net/index.p...

While my problem was with stack underflow I did on occassions see an overflow.

Atmel have confirmed that this a bug associated with icall and eicall.

may be a different problem but its worth a look.

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Svuppe
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Posted by Svuppe: Mon. Jul 31, 2006 - 08:50 PM
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Interesting. It does look somewhat related. Only I get the problem with a good old rcall. I use rcalls all over the program, but it is only one specific function, that experience these problems.

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rkruse
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Posted by rkruse: Wed. Aug 2, 2006 - 07:37 AM
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Svuppe wrote:
Interesting. It does look somewhat related. Only I get the problem with a good old rcall. I use rcalls all over the program, but it is only one specific function, that experience these problems.

The problem Trevor mentioned only affects icall /eicall. I'm not aware of any other problems with the stack supervision in the simulator in 4.12.490. If you can send (part of) your project exhibiting the problem to avrbeta atmel com, I will have a look at it.

- Roland

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Svuppe
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Posted by Svuppe: Wed. Aug 2, 2006 - 09:00 AM
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The file is in the mail.
You got the entire project. I tried to remove some non-relevant parts of the code, but then the error disappeared.

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