[fpc-pascal] Question on exceptions

[leledumbo]

John Youngquist wrote:
> 
> When you enable things like range checking. How do you identify
> when an exception has occurred and what it means?
> 
AFAIK a checking code is generated for every error-possible code. That's why
it seems a little slower when you compile programs with checkings enabled.
You can try to get the assembler output by specifying -a<lnrt>
compiler option. Try program below and check it.

var
  i: Byte;
begin
  i:=0;
  repeat
    Inc(i);
  until i>255;
end.



John Youngquist wrote:
> 
> I see messages like "Unhandled exception occurred at $hex address"
> then a bunch more $hex address'
> 
> I don't know what to do with these numbers.
> 
I usually use that for low level debugging. That it, to get what kind of
instruction happen at that address that cause the exception.
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