Why do we need to keep the RF2 data (i.e., the Read data2 output of the register file) in the EX/MEM pipeline register? LO-B PC O We don't Address Add Instruction memory IFAD Unicrucao Read register 1 Read register Registers Write register Write data 16 O For the pipeline to write back to the register file O For the memory data in SW instruction O For the ALU to handle R-type instructions Read data 1 Read data 2 W Sign- 32 extend ID/EX inst. PC+4 Imm RF 2 RF 1 Shift left 2 Iw Calculate the branch address KEZO Execution Add Add result Zero ALU ALU result Do the ALU op EX/MEM RF 2 ALU Zero Inst. branch Address Write data Data memory Read data MEMWB

Why do we need to keep the RF2 data (i.e., the Read data2 output of the register file) in the EX/MEM pipeline register? LO-B PC O We don't Address Add Instruction memory IFAD Unicrucao Read register 1 Read register Registers Write register Write data 16 O For the pipeline to write back to the register file O For the memory data in SW instruction O For the ALU to handle R-type instructions Read data 1 Read data 2 W Sign- 32 extend ID/EX inst. PC+4 Imm RF 2 RF 1 Shift left 2 Iw Calculate the branch address KEZO Execution Add Add result Zero ALU ALU result Do the ALU op EX/MEM RF 2 ALU Zero Inst. branch Address Write data Data memory Read data MEMWB

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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