(Solved): use logisim program Simulating a 32-bit Simplified MIPS ALU and Control Unit using image below Ainve ...

Simulating a 32-bit Simplified MIPS ALU and Control Unit using image below Ainvert Bnvert Operation Carryin Do Result Less Set Overflow detection Overflow Figure 1: A 1-bit ALU that performs AND, OR, and addition on a and bor b' Source: FIGURE B 5.10. Page B-33, Computer Organization and Design, David A. Patterson, John L. Hennessy -- 5th ed. Operation Bregate Ainvert ao bo Result Carryin ALUO Less CarryOut Result 1 a1 b1 0 Carryin ALU1 Less CarryOut Zero a2 b2 0 Result2 Carryin ALU2 Less CarryOut Carryin Result31 a31- Carryin ALU31 Less b31 0 Set Overflow Figure 2. A 32-bit ALU constructed from 32 1-bit ALUS Carry Out of the less significant bit is connected to the Carryin of the more significant bit. This organization is called ripple carry Source: FIGURE B.5. 12. Page: B-36, Computer Organization and Design, David A. Patterson, John L. Hennes - Sched. Inputs Op5 Op4 Op3 Op2 Op1 Opo - R-format Iw sw beg Outputs RegDst ALUSC Merto Reg RegWrite MemRead Mem Write Branch ALUOP1 ALUOPO Figure 3. The structured implementation of the control function. The structure, called a programmable logic array (PLA), uses an array of AND gates followed by an array of OR gates. The inputs to the AND gates are the function inputs and their inverses (bubbles indicate inversion of a signal) The inputs to the OR gates are the outputs of the AND gates (or, as a degenerate case, the function inputs and inverses). The output of the OR gates is the function outputs. Source: FIGURED 25 Page: DX Computer Organization and Design, David A. Patterson, John L. Hennesy,----5th ed.