Does anyone here have any information as to where an 8051 assembly language collection of routines for packed BCD integer arithmetic may be found? I am looking for something that could support numbers of 12, 14, or 16 BCD digits that are packed into 6, 7 or 8 bytes. Minimal requirements would be for unsigned ADD, SUB, MUL and DIV. Signed code would also be interesting to look at.

So far I am quite surprised that several extensive searches via Google have led to no discoveries.

Michael Karas