Explain what would happen in a Branch instruction if the RegWrite control signal was mistakenly set to 1 instead of 0. Consider all possible cases and use RTN to explain the behaviors.

Datapath + Control Add Lu Add ALU result 4 Shift left 2 RegDst Branch MemRead MemtoReg Instruction [31-26] Control ALUOp MemWrite ALUSrc RegWrite Instruction [25-21] Read ister 1 Read regi Read register 2 Write register data 2 Write data PCRea address Instruction [20-16] data 1 Zero ALU ALU result Instruction [31-0] Address Read data Read Instruction Instrction [15-11]x memor)y Registers Data Write memor data Sign32 extend Instruction [15-0] 16 ALU control Instruction [5-0] 0306.550.2009.01 Sonia Lopez Alarcon Lesson 4 Datapath + Control Add Lu Add ALU result 4 Shift left 2 RegDst Branch MemRead MemtoReg Instruction [31-26] Control ALUOp MemWrite ALUSrc RegWrite Instruction [25-21] Read ister 1 Read regi Read register 2 Write register data 2 Write data PCRea address Instruction [20-16] data 1 Zero ALU ALU result Instruction [31-0] Address Read data Read Instruction Instrction [15-11]x memor)y Registers Data Write memor data Sign32 extend Instruction [15-0] 16 ALU control Instruction [5-0] 0306.550.2009.01 Sonia Lopez Alarcon Lesson 4