ON 20011129@11:20:11 AM at page:
http://piclist.org/techref/microchip/math/bit/testbitsw.htm
DAV-MP-E62a David A Cary added 'Says
http://piclist.org/techref/microchip/swstmt.htm
Hint #3 is explained in more detail (with macros that make it easier to write compact, correct code).
'553 Null recipient not accepted