I don't no anything about C18, but C compilers that compile directly to
object code generally do _not_ permit normal assembly directives and
pseduops. On the other hand, they _do_ often support C syntax for operands.

For example, instead of low(FOO) you might be able to use FOO & 0xFF

high(FOO) becomes (FOO >> 8) & 0xFF

etc.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

----- Original Message -----
From: Andrew E. Kalman <aek@NETCOM.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Sunday, September 17, 2000 2:42 AM
Subject: [PIC] MPLAB-CXX in-line assembly question


> Hi All.
>
> In MPLAB-CXX one can do in-line assembly like:
>
>     ...
>     _asm
>     retlw 0
>     _endasm
>     ...
>
> Is it possible to do anything other than the processor's native
> instructions? I.e. are assembler _directives_ supported between _asm
> and _endasm?
>
> I'm using MPLAB-C18 and not only does it reject my attempts to use
> directives like global and high and operations like (labelname >> 8),
> but it even rejects my use of $!
>
> Anybody up on this?
>
> Thanks,
>
>
> --
>
>   ______________________________________
>    Andrew E. Kalman, Ph.D.   aek@netcom.com
>
> --
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