assembly lang.

I have a computer question don’t know how to do ar.

the question:
how to compute X:=(N-5*R)/K in assembly language for the 80X86
here, should use GetDec to input N,R and K
and PutDec to display X

don’t know solve the question is not matter, but do u know who know assembly language
or which website provide the information of it.

From DicksonSystem 1.1b