11XX
Instruction sur 2 quartets de la forme
11XX XXYY
XXXX:type d'instruction
0000 => R=R+R'
0001 => R=R+R
0010 => R'=R'+R
0011 => R=R-1
0100 => R=0
0101 => R=R'
0110 => R'=R
0111 => RR'EX
1000 => R=R-R'
1001 => R=R+1
1010 => R=R-R'
1011 => R=R'-R
1100 => RSL
1101 => RSR
1110 => R=-R
1111 => R=-R-1
YY:registres concerné
00=A & B
01=B & C
10=C & A
11=C & D