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Q1.1 lw instruction execution. 4 Points With the given MIPS single-cycle CPU schematic, when Iw $8, 4($9) is executed, select all the crrect answers below: ALUSrc MUST be 1 WriteData bus has the value of $8 Branch might be 1 RegWrite might be 0 RegDst MUST be 1 MemtoReg MUST be 0 SrcA has the value of $9 SrcB has the value from $8 MemWrite MUST be 1

Q1.1 lw instruction execution. 4 Points With the given MIPS single-cycle CPU schematic, when Iw $8, 4($9) is executed, select all the crrect answers below: ALUSrc MUST be 1 WriteData bus has the value of $8 Branch might be 1 RegWrite might be 0 RegDst MUST be 1 MemtoReg MUST be 0 SrcA has the value of $9 SrcB has the value from $8 MemWrite MUST be 1

Database System Concepts
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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I need someone who is good with mips programming please!

**Q1: MIPS Single-Cycle CPU** **10 Points** The diagram illustrates a MIPS single-cycle CPU architecture. It details the interconnections between various components required for processing instructions in one cycle. Understanding each component is critical for executing instructions properly. ### Diagram Description: - **Instruction Fetch and Program Counter:** - The **Program Counter (PC)** holds the memory address of the instruction to be fetched. - The **Instruction Memory** receives the PC and outputs the instruction to be executed. - The **PCPlus4** block increments the PC by 4 to point to the next instruction. - **Control Unit:** - Generates control signals like `MemtoReg`, `MemWrite`, `Branch`, `ALUControl`, `ALUSrc`, `RegDst`, `RegWrite`, etc., based on the instruction. - **Register File:** - Consists of registers A1, A2, A3, WE3, RD1, RD2, WD3 for storing operands and results. - The outputs `RD1` and `RD2` provide data to the ALU. - **ALU (Arithmetic Logic Unit):** - Performs arithmetic or logical operations on inputs `SrcA` and `SrcB` based on control signals. - The result is sent to `ALUResult` and used in further computation. - **Data Memory:** - Interacts with `WriteData` (data to be written) and `ReadData` (data read from memory) based on control signals. - **Sign Extend and Shifting:** - **-Sign Extend-** block extends immediate values to 32-bits. - A left shift by 2 operation is applied to the extended values, used in branch calculations. - **PC Source Selection:** - The result of the left shift is used by a multiplexer to determine the next PC value for branching. **Q1.1: lw Instruction Execution** **4 Points** This part involves the execution of the `lw` instruction, which stands for "load word." It involves fetching a word from memory into a register using the calculated address. Understanding each stage through the depicted CPU layout clarifies the data flow and control path during an `lw` execution. By analyzing this diagram, students can gain insights into the single-cycle implementation of a CPU, highlighting how instructions are processed in a MIPS architecture.
Transcribed Image Text:**Q1: MIPS Single-Cycle CPU** **10 Points** The diagram illustrates a MIPS single-cycle CPU architecture. It details the interconnections between various components required for processing instructions in one cycle. Understanding each component is critical for executing instructions properly. ### Diagram Description: - **Instruction Fetch and Program Counter:** - The **Program Counter (PC)** holds the memory address of the instruction to be fetched. - The **Instruction Memory** receives the PC and outputs the instruction to be executed. - The **PCPlus4** block increments the PC by 4 to point to the next instruction. - **Control Unit:** - Generates control signals like `MemtoReg`, `MemWrite`, `Branch`, `ALUControl`, `ALUSrc`, `RegDst`, `RegWrite`, etc., based on the instruction. - **Register File:** - Consists of registers A1, A2, A3, WE3, RD1, RD2, WD3 for storing operands and results. - The outputs `RD1` and `RD2` provide data to the ALU. - **ALU (Arithmetic Logic Unit):** - Performs arithmetic or logical operations on inputs `SrcA` and `SrcB` based on control signals. - The result is sent to `ALUResult` and used in further computation. - **Data Memory:** - Interacts with `WriteData` (data to be written) and `ReadData` (data read from memory) based on control signals. - **Sign Extend and Shifting:** - **-Sign Extend-** block extends immediate values to 32-bits. - A left shift by 2 operation is applied to the extended values, used in branch calculations. - **PC Source Selection:** - The result of the left shift is used by a multiplexer to determine the next PC value for branching. **Q1.1: lw Instruction Execution** **4 Points** This part involves the execution of the `lw` instruction, which stands for "load word." It involves fetching a word from memory into a register using the calculated address. Understanding each stage through the depicted CPU layout clarifies the data flow and control path during an `lw` execution. By analyzing this diagram, students can gain insights into the single-cycle implementation of a CPU, highlighting how instructions are processed in a MIPS architecture.
Q1.1: lw Instruction Execution **4 Points** With the given MIPS single-cycle CPU schematic, when `lw $8, 4($9)` is executed, select all the correct answers below: - [ ] ALUSrc MUST be 1 - [ ] WriteData bus has the value of $8 - [ ] Branch might be 1 - [ ] RegWrite might be 0 - [ ] RegDst MUST be 1 - [ ] MemtoReg MUST be 0 - [ ] SrcA has the value of $9 - [ ] SrcB has the value from $8 - [ ] MemWrite MUST be 1
Transcribed Image Text:Q1.1: lw Instruction Execution **4 Points** With the given MIPS single-cycle CPU schematic, when `lw $8, 4($9)` is executed, select all the correct answers below: - [ ] ALUSrc MUST be 1 - [ ] WriteData bus has the value of $8 - [ ] Branch might be 1 - [ ] RegWrite might be 0 - [ ] RegDst MUST be 1 - [ ] MemtoReg MUST be 0 - [ ] SrcA has the value of $9 - [ ] SrcB has the value from $8 - [ ] MemWrite MUST be 1
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