> Hello all, I don't want to directly respond to "Root"'s wrong and
> off-topic reply to my post, but will rephrase my query.
My appologies; root is Moderator, I (stupidly) used the wrong account.
Thank you for re-phrasing your question, wish I could help you with it
but I'm drawing a blank.  There is a lengthy unpacked bcd example in 
80xxx_96.zip (math/bcd2.asm), demonstrating subtraction.
 
> How to choose which form to deal with intergers from 0
> to 999,999,999 ?
> 
> dx,ax   or bcd?   packed or unpacked?
 edx,eax?
> 
> Can someone show me a simple example of division and addition using
> these techniques?
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