Create a new channel based on the comparsion of other two channels

Hi,

What I would like to do is to create a new channel based on the calculation of the other two channels.

if channel_1 >=12 AND channel_2 = 1, then channel_new = 1 else channel_new = 0.  But the bit I am stuck with is that I want Diadem to do this calculation for every single element in the channels being compared.  I tried to use a for loop but it takes very long for Diadem to do that.  So just wondering if there are functions in Diadem could perform the calculation in a quicker manner?

Thanks a lot

Regards,

Ahmed