A83: Re: Re: Re: On-Calc Editor


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A83: Re: Re: Re: On-Calc Editor




There may be a checksum like on the 86 that will restore the memory after a
crash.  But due to the very limited ram and the fact that you execute
programs in the same memory space where they are stored, an on calc
assembler is all but impossible :-/

> There'd have to be an interrupt installed that would act as an error
handler if say, the On key was pressed. Then it
> would have to restore the stack pointer to what it was before the program
was run. That wouldn't save the calc from a
> crash if the program had corrupted memory though.
>
> <snip>
> Not fit for large programs though... one bug and... wham. Source gone.
>
> Unless... it featured an option with which you can recover from an endless
> loop (provided it doesn't change the memory on places it shouldn't
change).
> That could make it a little more crash-proof...
>
> ~Grauw
>
>
>



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