Re[3]: Bitwise ops in RPG

["Eric N. Wilson" <doulos1@xxxxxxxx>]

Hello boldt,

Friday, November 17, 2000, 5:15:45 AM, you wrote:

> I believe the W-Code documentation is available as a PRPQ, but
> the licence fees limit its availability to serious developers
> only.  And when I say "serious", I really mean "SERIOUS".  It's
> a technology intended only for compilers and not for user
> programs written in "W-Code".

Thanks Hans, it is too bad that it is so expensive... I would love to
see an Object Pascal implementation on the AS/400 along with some of
my other favorite pet languages (LISP, Prolog, etc... I know that I am
pushing the limits of syntax by calling either one of those a compiler
:-) Perhaps IBM in it's new sense of openness could release this as,
dare I hope, freely available material so that more languages could
become available on the AS/400. Nah that would make too much sense :-)

You say that it looks a lot like 8086 ASM, I would hope that it would
look more like 68x00 ASM, which always made a ton more sense to me!
Seeing as W-Code is geared toward an abstract virtual machine and can
handle low level language constructs with aplomb I do not see why a
Object Pascal compiler that emitted W-Code would not be a great
idea... I would assume that W-Code would be a extremely thin layer
over the PowerPC instruction set.

Without getting you in trouble, does it support object oriented
features such as multiple method signatures, *this (to use C++
nomenclature), and inheritence? Or is that something one would need to
roll on their own? Is the language syntax "extensible" like a
macro-assembler or even better like Forth? :-)

Ok that is probably more than enough about this non-RPG topic. Oh I
would really prefer the AND, NOT, XOR, OR bitwise operations rather
than bifs because of the need many times to AND multiple bit masks
together to come up with the final bit mask. (I like to do as many
things that are logically related in one line as possible and let the
compiler manage work variables for me :-)

Thanks
Eric


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