Steve, I've used the Parallax assembler (now CVASM as part of TDE) for
over three years and have wrote thousands of lines of code for most of the
16Cx and 12Cx family. I have never had any status flags or registers change
in an unpredictable manner. However, I'd recommend anyone using the
assembler also learn Microchip's syntax so you know how the Parallax
instructions behave. Their documentation shows exactly what instructions are
executed for each Parallax instruction. As with any uP, folks need to learn
the architecture and the details of it's naitive instructions as well as the
assembler and/or compiler.

   - Tom

>Steve Baldwin wrote:
>>
>> > I avoid the Parallax set of instructions and warn beginners to stay away
>> > even if they are familiar with 8051 operations.  I avoid it because
>> > registers and Status register flags can get changed inadvertently without
>> > the user neccessarily knowing it.
>> >
>> > On these points, what do other people think?