No, prusso, it's 2D. I was initially tricked into over-analysing it and reachind 3E, but see:
r1 is loaded with 2D
r2 is loaded with 11 (which turns out to be irrelevent)
r1 and r2 are added, and according to the given rules, the result is stored in /r2/
r1 is stored to m1, so m1 = r1...