P1020416

DR *- M[PC]

PC *- PC + 1 IR DR AC *— AC *4-1 AC *- ~AC AC*- DR AC - AC + DR AR <- DR DR *- AC DR <- M\AR]

M[AR] «- DR TC*- O AC - INR OUR *- AC

y

Figurę 3.3. The microinstructions perforraed by the Computer.

Start

Figurę 3.4. The seąuences of microinstructions needed to execute each of the listed

(in Figurę 3.2) instructions.

6