Programming $66

[Ludis Langens]

steve ravet wrote:
> 
> > The 2D tables all have a three byte header.  Two bytes specify an offset
> > for the two input values.  The third byte specifies the number of columns.
> 
> I'm not quite clear on this.  From the 7748 bins I looked at I noticed
> that 2d tables all had the header and the third byte was the number of
> columns but what are the first two bytes?

"Two bytes specify an offset for the two input values."

The table lookup subroutine is called with the input values in the A and
B registers.  The first two header bytes are subtracted from these
registers.  Essentially, they make the first row and column correspond
to input values greater than zero.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/