The ALU Control Unit output is determined by the ALUOp and the funct field. What are the Boolean functions that determine the ALU Control Unit’s output?

Table 14.1 MIPS 32-bit Instruction Formats. ... Addi I 8 - Add Immediate Addu R 0 33 Add Unsigned Sub R 0 34 Subtract Subu R 0 35 Subtract Unsigned ... Figure 14.3 Block Diagram …

Control signal table This table summarizes what control signals are needed to execute an instruction. The set of control signals vary from one instruction to another. How to implement …

Apr 8, 2012 · The Sign_extend_output is just the immediate field sign-extended: 0x00000004. On to the ALU control signals. ALUSrc controls the multiplexer between the register file and ALU.

1 • ALU's operation based on instruction type and function code – e.g., what should the ALU do with any instruction • Example: lw $1, 100($2) 35 2 1 100 Op4op rs rt 16 bit offset • ALU …

To design the Main Control unit, we need to generate the control table which lists for each instruction, the control values needed to execute the instruction. This is illustrated in Table 12.2.

The add immediate, addi , instruction adds the twos complement bits 15 downto 0 of the instruction to a register and places the sum into the destination register. The PC is …

This simple implementation (see the figure) covers load word (lw), store word (sw), branch equal (beq), the arithmetic-logical instructions add, sub, and, or, set on less than (slt), and immediate …

After the design of partial single MIPS datapath, we need to add the control unit that controls the whole operation of the datapath (generatse appro-priate signals for the operation of the …

Single Cycle Datapath During add (immediate) • Given RTN of X[d] ← X[n] + ZeroExtend(imm12) , then RegWrite = 1, ALUSrc = 1, ALUOp = add, MemRead = 0, MemWrite = 0, and …