Also just tried this on another computer with MPLAB v8.76 and C18 =20
v3.42.  Same non-working behaviour.

Cheers,
-Neil.



Quoting Neil <picdude3@narwani.org>:

> Happy Thanksgiving US folks,
>
> Trying to figure out why code isn't working, I've whittled it down to
> this oddity:
>
> This works, toggling LED's repeatedly as expected...
>
> while (1)
> {
> 	TRISC =3D 0b10101010;			// '0's will turn LED's on.
> 	for (x=3D0; x<200; x++)
> 	{
> 		Delay10TCYx(255);
> 		res++;				// Dummy task
> 	}
> 	TRISC =3D 0b01010101;			// '0's will turn LED's on.
> 	res++;					// Dummy task
> 	for (x=3D0; x<200; x++)
> 	{
> 		Delay10TCYx(255);
> 		res++;				// Dummy task
> 	}
> }
>
>
> However, when I switch delay functions and adjust the time units
> accordingly, the code stalls at the delay...
>
> while (1)
> {
> 	TRISC =3D 0b10101010;			// '0's will turn LED's on.
> 	for (x=3D0; x<200; x++)
> 	{
> 		Delay100TCYx(26);
> 		res++;				// Dummy task
> 	}
> 	TRISC =3D 0b01010101;			// '0's will turn LED's on.
> 	res++;					// Dummy task
> 	for (x=3D0; x<200; x++)
> 	{
> 		Delay100TCYx(25);
> 		res++;				// Dummy task
> 	}
> }
>
>
> This is a fresh install of MPLAB 8.66 with C18 v3.46.  I've disabled
> all optimizations in the project's build options.  What else should I
> be checking, or is this a legitimate bug with the compiler/libraries?
> FWIW, I also noticed that I could previously use "while (1)" for
> infinite loops, but now the compiler hangs for several minutes, memory
> usage climbs significantly, then just fails to compile.
>
> Cheers,
> -Neil.
>
>
>
> --
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