RPM - DIV32 Problem

[mister_e]

The little problem is that you MUST use variable in your 16x16 bit multiplication, unless it's not going to work.

        rlow var word
        rhigh var word
        rtotal var word
        RPM VAR WORD
        tbase var word
        a var word
        b var word
        a=500
        b=600
        '
        '        
        '
        rhigh=1400
        rlow=1400
        rtotal = (rhigh + rlow) /10
        tbase = a*b
        rpm = div32 rtotal

this return 1071

you should have better resolution with...

        rlow var word
        rhigh var word
        rtotal var word
        RPM VAR WORD
        tbase var word
        a var word
        b var word
        a=5000
        b=600
        '
        '        
        '
        rhigh=1400
        rlow=1400
        rtotal = (rhigh + rlow)
        tbase = a*b
        rpm = div32 rtotal