Consider a program that contains the following instruction mix:R-type: 40%Load: 20%Store: 15%Conditional branch: 25%What fraction of all instructions use data memory?What fraction of all instructions use instruction memory?What fraction of all instructions use the sign extender? The image is a diagram of a basic single-cycle CPU datapath, often used in computer architecture education to demonstrate how instructions are processed within a processor. Below is a detailed explanation of each component and its role:1. **PC (Program Counter):** - Holds the address of the current instruction and sends it to the Instruction Memory.2. **Instruction Memory:** - Reads the instruction from memory using the address provided by the PC.3. **Add (Top-Left, for PC Increment):** - Increments the PC by 4 to point to the next instruction address.4. **Multiplexer (Mux, Top-Right, PCSrc):** - Selects the next value for the PC based on a control signal; either the incremented PC or the branch target.5. **Registers:** - Contains the Register File where: - Two registers are read (Read register 1, Read register 2). - Data from these registers are output as Read data 1 and Read data 2. - Data can be written back into a register (Write register, Write data).6. **Sign-Extend:** - Extends the immediate value from 16 bits to 32 bits to match the other data paths in the CPU.7. **ALU (Arithmetic Logic Unit):** - Performs calculations based on the ALU operation control input: - Takes inputs from the first register and a second source determined by the ALUSrc multiplexer. - Outputs the result and a zero status flag.8. **Multiplexer (Mux, ALUSrc):** - Chooses between the second register read data or a sign-extended immediate value as the ALU's second input.9. **Shift Left 2:** - Shifts the sign-extended immediate value left by two bits, effectively multiplying it by four. This is used for calculating branch addresses.10. **Add (Bottom-Right, Branch Calculation):** - Computes a possible branch target address using the shifted value.11. **Data Memory:** - Reads from or writes data to the memory, using the address and data inputs specified. - Controlled by MemRead and MemWrite signals.12. **Multiplexer (Mux, MemtoReg):** - Determines whether the data to be written back to the register file comes from the ALU result or the Memory.Each component works together

Name: Consider a program that contains the following instruction mix:R-type:
Uploaded: 2024-03-20T06:51:23.000Z
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Description: Consider a program that contains the following instruction mix:R-type: 40%Load: 20%Store: 15%Conditional branch: 25%What fraction of all instructions use data memory?What fraction of all instructions use instruction memory?What fraction of all instru

Here we have given solutions for all th three subparts of the question. You can find the solution in step 2.R-type: 40% Load: 20% Store: 15% Conditional branch: 25% 1. What fraction of all instructions use data memory? L and S instructions are the only instructions that utilise the data memory. writes the word size data to memory after loading it from there. Total instructions that uses data memory =20% +15% =35% 2. What fraction of all instructions use instruction memory? Before an instruction can begin to be executed, it must first be acquired from memory. All instructions are fetched from memory in the first phase of the instruction execution cycle, which makes use of instruction memory. As a result, the instruction memory uses R-type by 40% instructions. 3. What fraction of all instructions use the sign extender? The instructions Load, Store, control Branch are used .The fraction of sign-extender used = 20% + 15% + 25% = 60%