On Tue, 19 Oct 2004, Jose Da Silva wrote:
> On Tuesday 19 October 2004 02:56 am, Jan-Erik Soderholm wrote:
> > Jose Da Silva wrote :
> > > if (foo[bar++] > 3) <-might be nice on a chip with pre/post
> > > inc pointers such as 6809 but probably comes out
> > > horrible on PIC.
> 
> My mistake.
> I've got my processors mixed up... I was thinking you could auto inc/dec the 
> X Y U or S indexes on the 6809  :-(    It has offsets, but not auto inc/dec.

Actually the 6809 _does_ have auto increment/decrement.  It has both
auto-increment by one or by two, and auto-decrement by one or two.

For example:

	LDA	,X+
	LDB	,Y++
	LDA	,-X
	LDB	,--Y

(I did have to crack open by copy of "TRS-80 Color Computer Assembly
Language Programming" by William Barden, Jr. to remind myself of the
indexed addressing mode.)
	-- Robert

-- 
Robert James Kaes
WormBytes Consulting and Contracting
http://www.wormbytes.ca/
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