Operations that are occurred in each phase: For the instruction ADD: Fetch: Takes instruction from memory. Next address is loaded into Program Counter (PC). Decode: It finds that it is an add instruction. Evaluate address: There is no memory operation. So it is not required to evaluate the memory address. Fetch operands: From the register file, the operands are taken. Execute: Execute the add operation. Store result: The result is stored in a register file. For the instruction LDR: Fetch: Takes instruction from memory. Next address is loaded into Program Counter (PC). Decode: It finds that the instruction is a Load Base + offset instruction. Evaluate address: Memory address is computed by adding the base register with the sign extended offset...

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Answer 1

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Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

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Answer 2

Expert Solution & Answer

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

Expert Solution & Answer

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Answer 3

Expert Solution & Answer

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

Expert Solution & Answer

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Answer 4

Expert Solution & Answer

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

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Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

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Answer 7

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

Answer 8

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

Answer 9

Chapter 4, Problem 12E

Explanation of Solution

Operations that are occurred in each phase:

For the instruction ADD:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that it is an add instruction.

Evaluate address:

There is no memory operation. So it is not required to evaluate the memory address.

Fetch operands:

From the register file, the operands are taken.

Execute:

Execute the add operation.

Store result:

The result is stored in a register file.

For the instruction LDR:

Fetch:

Takes instruction from memory.

Next address is loaded into Program Counter (PC).

Decode:

It finds that the instruction is a Load Base + offset instruction.

Evaluate address:

Memory address is computed by adding the base register with the sign extended offset...

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 4 - Prob. 1E Ch. 4 - Prob. 2E Ch. 4 - What is misleading about the name program counter?...Ch. 4 - Prob. 4E Ch. 4 - Prob. 5E Ch. 4 - What are the two components of an instruction?...Ch. 4 - Prob. 7E Ch. 4 - The FETCH phase of the instruction cycle does two...Ch. 4 - Prob. 10E Ch. 4 - State the phases of the instruction cycle, and...

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