Derive the Boolean logic expression for "' (see Table 5-6). Show that x. can be generated with one AND gate and one OR gate.

TABLE 5-6 Control Functions and Microoperations for the Basic Computer Fetch Decode Indirect Interrupt: R, T,: D AR IR(0-11), . . . , D' Decode IR(12-14), 1IR(15) Memory-reference: AND ADD LDA STA BUN BSA ISZ Dd'e MIARI DR, if(DR:0) then (PC PC+ 1), SC+0 Register-reference DIT, = r (common to all register-reference instructions) r: SC 0 CLA CLE CMA CME CIR CIL INC SPA SNA SZA SZE HLT rBs r ,: rB2: rB: If (AC(15) = 0) then (PC PC + 1) If (AC(15) = 1) then (PC+PC+ 1) If (AC 0) then PC PC + 1) If(E 0 ) then (PCPC+1) Input-output DIT, -p (common to a l input-output instructions) IR(i)-B (i -6,7, 8,9, 10,11) INP OUT SKI SKO ION IOF PB,: If (FGI-1) then (PC PC + 1) pB If (FGO1) then (PC PC 1) TABLE 5-6 Control Functions and Microoperations for the Basic Computer Fetch Decode Indirect Interrupt: R, T,: D AR IR(0-11), . . . , D' Decode IR(12-14), 1IR(15) Memory-reference: AND ADD LDA STA BUN BSA ISZ Dd'e MIARI DR, if(DR:0) then (PC PC+ 1), SC+0 Register-reference DIT, = r (common to all register-reference instructions) r: SC 0 CLA CLE CMA CME CIR CIL INC SPA SNA SZA SZE HLT rBs r ,: rB2: rB: If (AC(15) = 0) then (PC PC + 1) If (AC(15) = 1) then (PC+PC+ 1) If (AC 0) then PC PC + 1) If(E 0 ) then (PCPC+1) Input-output DIT, -p (common to a l input-output instructions) IR(i)-B (i -6,7, 8,9, 10,11) INP OUT SKI SKO ION IOF PB,: If (FGI-1) then (PC PC + 1) pB If (FGO1) then (PC PC 1)