Consider the following instruction: Instruction: beq Rs,Rt,target16 a) What are the values of control signals generated...
Consider the following instruction: Instruction: beq Rs,Rt,target16 a) What are the values of control signals generated by the control in Figure 4.2 for the above instruction? b) Which resources (blocks) perform a useful function for this instruction? c) Which resources (blocks) produce outputs, but their outputs are not used for this instruction? Which resources produce no outputs for this instruction?
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Consider the following instruction: Instruction: beq
Rs,Rt,target16 a) What are the values of control signals generated...
Consider the following instruction:Instruction: beq Rs,Rt,target16 a)What are the values of control signals generated by the...
Consider the following instruction:Instruction: beq Rs,Rt,target16 a)What are the values of control signals generated by the control in Figure 4.2 for the above instruction? b)Which resources (blocks) perform a useful function for this instruction? c)Which resources (blocks) produce outputs, but their outputs are not used for this instruction? Which resources produce no outputs for this instruction?
4. Consider the following instruction (add immediate addi): Instruction: ADDI Rd, Rs, 20 Interpretation: Reg[Rd] = Reg[Rs] + imediate I-type format:1 001000 I Rs I Rd 1 imediateI (a) What are th...
4. Consider the following instruction (add immediate addi): Instruction: ADDI Rd, Rs, 20 Interpretation: Reg[Rd] = Reg[Rs] + imediate I-type format:1 001000 I Rs I Rd 1 imediateI (a) What are the values of control signals generated by the ALU control unit in for the above instruction? (b) What are the values of the signals at the output of the Control unif? (e) Show the flow of instruction execution in the figure below by identifying each component used and the...
Inst Memory Instruction dr Rs Rt Rd Imm16 Rd Rt Equa ALUctr MemtoReg MemWr RegWr Rs Rt Ra Rb buSA...
Inst Memory Instruction<31:0> dr Rs Rt Rd Imm16 Rd Rt Equa ALUctr MemtoReg MemWr RegWr Rs Rt Ra Rb buSA 32 RegFile busB bus W 32 32 clk WrEn Adr clk imm162 Data In Data Memory 16 E 32 clk imm 16 Extop ALUSr Figure 1: MIPS datapath with control signals Consider again the MIPS datapath with control signals as pre- sented in Figure 1. We want to add a new instruction to the MIPS instruction set architecture foo. Its...
SW $56, 0xFF00($to) What are the values of Control signals generated by the MIPS architecture to...
SW $56, 0xFF00($to) What are the values of Control signals generated by the MIPS architecture to execute this instruction. Show with a chart and explain it all clearly. (You may draw a simplified datapath flow)
4. (10 pts) The following MIPS single-cycle datapath cannot perform Divide instruction. Indicate any changes to...
4. (10 pts) The following MIPS single-cycle datapath cannot perform Divide instruction. Indicate any changes to the datapath that must be done in order to support Div instruction, e.g., adding extra wires, extra logic gates, extra registers, etc. Do your modification on the following figure if necessary, and show the dataflow for this instruction using dash lines on the modified figure. Also show the values of the corresponding control signals in the following table and add new control signals to...
Consider the following MIPS assembly language instructions: addi $1, $2, 100 swr $1, 0($2): addi $rt,...
Consider the following MIPS assembly language instructions: addi $1, $2, 100 swr $1, 0($2): addi $rt, $rs, immediate # add immediate swr $rt, immedi ate ($rs) # store word write register These instructions are I-format instructions similar to the load word and store word instructions. The addi and swr instructions store a computed value to the destina- tion register $rt. The instructions do not require any physical hardware changes to the datapath. The effect of each instruction is given below....
4. List the values on the control signals for the following instructions. The MIPS architecture and...
4. List the values on the control signals for the following instructions. The MIPS architecture and instruction formats studied in class are shown below for reference. Your answer needs to be 1, 0, or X for each signal (a 0 or 1 will not be accepted as a substitute for X) MemtoReg MemWriteBranchALUSrc RegDst RegWrite sub r2, r5, r23 beq rl, r3, L2 sw rl, 36(r4) lw r3,100(r6) addi r2,rl4,-24 j L3 ontro Unit Write ranch PCSrc Op Funct LUSre...
1. Given the following instruction sequence for the MIPS processor with the standard 5 stage pipeline $10, S0. 4 addi lw S2.0(S10) add sw S2,4(510) $2, $2, $2 Show the data dependences between th...
1. Given the following instruction sequence for the MIPS processor with the standard 5 stage pipeline $10, S0. 4 addi lw S2.0(S10) add sw S2,4(510) $2, $2, $2 Show the data dependences between the instructions above by drawing arrows between dependent instructions (only show true/data dependencies). a. Assuming forwarding support, in what cycle would the store instruction write back to memory? Show the cycle by cycle execution of the instructions as they execute in the pipeline. Also, show any stalls...
Question 5 0.25 pts What is the value of the MemWrite control signal? Question 6 0.25 pts What is the value of the ALUSrc control signal? Add Add Sum--(1 4 Shift left 1 Branch MemRead Instruction [6-...
Question 5 0.25 pts What is the value of the MemWrite control signal? Question 6 0.25 pts What is the value of the ALUSrc control signal? Add Add Sum--(1 4 Shift left 1 Branch MemRead Instruction [6-0] ControMemtoReg MemWrite ALUSrc RegWrite Instruction [19-15]Read Read register 1 Read Read data! PCaddress Instruction [24-20] Zero ALU ALU result register 2 Instruction 31-0 Instruction [11-7 Read1 Address data | Write Read register daiaALU | M Instruction memory Write data Registers Write Data data...
3. Examine the difficulty of adding a proposed ss Rd, Rn, #immediate (Store sum) instruction to...
3. Examine the difficulty of adding a proposed ss Rd, Rn, #immediate (Store sum) instruction to the LEGv8 instruction set, which works as follows: Mem[Reg[Rd]]=Reg[Rn]+immediate; (20 pts) a. Which new functional blocks (if any) do we need for this instruction? (4 pts) b. Which existing functional blocks (if any) require modification? (4 pts) c. What new datapaths do we need (if any) to support this instruction? (4 pts) d. What new control unit signals (if any) do we need for...
4. Consider the following instruction (add immediate addi): Instruction: ADDI Rd, Rs, 20 Interpretation: Reg[Rd] = Reg[Rs] + imediate I-type format:1 001000 I Rs I Rd 1 imediateI (a) What are the values of control signals generated by the ALU control unit in for the above instruction? (b) What are the values of the signals at the output of the Control unif? (e) Show the flow of instruction execution in the figure below by identifying each component used and the...
Inst Memory Instruction<31:0> dr Rs Rt Rd Imm16 Rd Rt Equa ALUctr MemtoReg MemWr RegWr Rs Rt Ra Rb buSA 32 RegFile busB bus W 32 32 clk WrEn Adr clk imm162 Data In Data Memory 16 E 32 clk imm 16 Extop ALUSr Figure 1: MIPS datapath with control signals Consider again the MIPS datapath with control signals as pre- sented in Figure 1. We want to add a new instruction to the MIPS instruction set architecture foo. Its...
SW $56, 0xFF00($to) What are the values of Control signals generated by the MIPS architecture to execute this instruction. Show with a chart and explain it all clearly. (You may draw a simplified datapath flow)
4. (10 pts) The following MIPS single-cycle datapath cannot perform Divide instruction. Indicate any changes to the datapath that must be done in order to support Div instruction, e.g., adding extra wires, extra logic gates, extra registers, etc. Do your modification on the following figure if necessary, and show the dataflow for this instruction using dash lines on the modified figure. Also show the values of the corresponding control signals in the following table and add new control signals to...
Consider the following MIPS assembly language instructions: addi $1, $2, 100 swr $1, 0($2): addi $rt, $rs, immediate # add immediate swr $rt, immedi ate ($rs) # store word write register These instructions are I-format instructions similar to the load word and store word instructions. The addi and swr instructions store a computed value to the destina- tion register $rt. The instructions do not require any physical hardware changes to the datapath. The effect of each instruction is given below....
4. List the values on the control signals for the following instructions. The MIPS architecture and instruction formats studied in class are shown below for reference. Your answer needs to be 1, 0, or X for each signal (a 0 or 1 will not be accepted as a substitute for X) MemtoReg MemWriteBranchALUSrc RegDst RegWrite sub r2, r5, r23 beq rl, r3, L2 sw rl, 36(r4) lw r3,100(r6) addi r2,rl4,-24 j L3 ontro Unit Write ranch PCSrc Op Funct LUSre...
1. Given the following instruction sequence for the MIPS processor with the standard 5 stage pipeline $10, S0. 4 addi lw S2.0(S10) add sw S2,4(510) $2, $2, $2 Show the data dependences between the instructions above by drawing arrows between dependent instructions (only show true/data dependencies). a. Assuming forwarding support, in what cycle would the store instruction write back to memory? Show the cycle by cycle execution of the instructions as they execute in the pipeline. Also, show any stalls...
Question 5 0.25 pts What is the value of the MemWrite control signal? Question 6 0.25 pts What is the value of the ALUSrc control signal? Add Add Sum--(1 4 Shift left 1 Branch MemRead Instruction [6-0] ControMemtoReg MemWrite ALUSrc RegWrite Instruction [19-15]Read Read register 1 Read Read data! PCaddress Instruction [24-20] Zero ALU ALU result register 2 Instruction 31-0 Instruction [11-7 Read1 Address data | Write Read register daiaALU | M Instruction memory Write data Registers Write Data data...
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