>> and explanations of how to do a few of the things that seem so =20
>> trivial
>> in assembler but have no obvious solution in C18.
>
> Like what? There's always inline assembly if you really need it.

The world could probably use a good book on "low level C", rather than =20
yet more desktop-gui-oriented tomes, but like other commenters, I'm =20
having trouble figuring out what you're looking for.

There are C reference manuals for C.
There are data sheets for the hardware.
There are a couple techniques used to make C match up with the names =20
and descriptions in data sheets, but it's usually just a matter of =20
noticing "bit variables" or "we use defines and bit numbers" or "we =20
have pointers and masks" or "structures and bitfields" and carrying on =20
from there (hoping that the implementation stays reasonably =20
consistent, and crossing  your fingers that staying with the =20
"standardized" methodology makes your code more readable than re-=20
architecting things to your personal preferences...

(Some of the secret is in trusting that the compiler will do =20
reasonable things given standardish syntax.  PORTB |=3D 2 had better =20
compile to a single BSF instruction when possible (for example), or =20
you go yell at the compiler vendor.)

BillW

--=20
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