Re: Exception Trouble

Noel,
Why not code the entire exception is assembly? That way you'll know
explicitly what registers you need to save and restore. Did you look at
/portf and powerdown and make sure they were only used DO, D1, A0, and U?

Dwight

On Thu, 9 Sep 2004, Noel Henson wrote:

> Hi,
>
> I'm using the Professional version of SwiftX68K.
>
> I know the following is not optimal, but is there anything actually wrong
> with it? I'm getting strange behavior with the exceptions and am having
> trouble tracking it down.
>
> Thanks,
>
> Noel
>
> : /portf ( - )
> $01 pfpar w!
> $60 ddrf w!
> $00 portf w!
> ;
>
> : powerdown ( - )
> /portf
> true to do-powerdown?
> ;
>
> ' powerdown
> label <powerdown>
> RL R -) MMOV D0 D1 // A0 // U /// \ not optimized
> AB JSR \ call powerdown
> R )+ RL MMOV D0 D1 // A0 // U /// \ not optimized
> RTE
> end-code
>
> <powerdown> $1F EXCEPTION
>
> --
>
> ------------------------------------------------------------------
> Noel Henson
> www.noels-lab.com Chips, firmware and embedded systems
> www.vimoutliner.org Work fast. Think well.
>
> ----------------------------------------------------------------------
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Received on Thu Sep 09 2004 - 07:50:57 PDT