Load Effective Address: The load effective address instruction “leaq” is a variant of “movq” instruction. The instruction form reads memory to a register, but memory is not been referenced at all. The first operand of instruction is a memory reference; the effective address is been copied to destination. The pointers could be generated for later references of memory. The common arithmetic operations could be described compactly using this instruction. The operand in destination should be a register. Data movement instructions: The different instructions are been grouped as “instruction classes”. The instructions in a class performs same operation but with different sizes of operand. The “Mov” class denotes data movement instructions that copy data from a source location to a destination. The class has 4 instructions that includes: movb: It copies data from a source location to a destination. It denotes an instruction that operates on 1 byte data size. movw: It copies data from a source location to a destination. It denotes an instruction that operates on 2 bytes data size. movl: It copies data from a source location to a destination. It denotes an instruction that operates on 4 bytes data size. movq: It copies data from a source location to a destination. It denotes an instruction that operates on 8 bytes data size. Comparison Instruction: The “CMP” instruction sets condition code according to differences of their two operands. The working pattern is same as “SUB” instruction but it sets condition code without updating destinations. The zero flag is been set if two operands are equal. The ordering relations between operands could be determined using other flags. The “cmpl” instruction compares values that are double word. Unary and Binary Operations: The details of unary operations includes: The single operand functions as both source as well as destination. It can either be a memory location or a register. The instruction “incq” causes 8 byte element on stack top to be incremented. The instruction “decq” causes 8 byte element on stack top to be decremented. The details of binary operations includes: The first operand denotes the source. The second operand works as both source as well as destination. The first operand can either be an immediate value, memory location or register. The second operand can either be a register or a memory location.

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Answer 1

Question

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

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Answer 2

Question

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Answer 6

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

Answer 7

Chapter 3.10, Problem 3.48PP

A.

Program Plan Intro

Load Effective Address:

The load effective address instruction “leaq” is a variant of “movq” instruction.

The instruction form reads memory to a register, but memory is not been referenced at all.

The first operand of instruction is a memory reference; the effective address is been copied to destination.

The pointers could be generated for later references of memory.

The common arithmetic operations could be described compactly using this instruction.

The operand in destination should be a register.

Data movement instructions:

The different instructions are been grouped as “instruction classes”.

The instructions in a class performs same operation but with different sizes of operand.

The “Mov” class denotes data movement instructions that copy data from a source location to a destination.

The class has 4 instructions that includes:

movb:

It copies data from a source location to a destination.

It denotes an instruction that operates on 1 byte data size.

movw:

It copies data from a source location to a destination.

It denotes an instruction that operates on 2 bytes data size.

movl:

It copies data from a source location to a destination.

It denotes an instruction that operates on 4 bytes data size.

movq:

It copies data from a source location to a destination.

It denotes an instruction that operates on 8 bytes data size.

Comparison Instruction:

The “CMP” instruction sets condition code according to differences of their two operands.

The working pattern is same as “SUB” instruction but it sets condition code without updating destinations.

The zero flag is been set if two operands are equal.

The ordering relations between operands could be determined using other flags.

The “cmpl” instruction compares values that are double word.

Unary and Binary Operations:

The details of unary operations includes:

The single operand functions as both source as well as destination.

It can either be a memory location or a register.

The instruction “incq” causes 8 byte element on stack top to be incremented.

The instruction “decq” causes 8 byte element on stack top to be decremented.

The details of binary operations includes:

The first operand denotes the source.

The second operand works as both source as well as destination.

The first operand can either be an immediate value, memory location or register.

The second operand can either be a register or a memory location.

Answer 8

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Answer 9

B.

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

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Answer 13

Ch. 3.4 - Prob. 3.1PP Ch. 3.4 - Prob. 3.2PP Ch. 3.4 - Prob. 3.3PP Ch. 3.4 - Prob. 3.4PP Ch. 3.4 - Prob. 3.5PP Ch. 3.5 - Prob. 3.6PP Ch. 3.5 - Prob. 3.7PP Ch. 3.5 - Prob. 3.8PP Ch. 3.5 - Prob. 3.9PP Ch. 3.5 - Prob. 3.10PP

Solution Summary: The author explains how the load effective address instruction "leaq" reads memory to a register, but memory is not referenced at all.

Concept explainers

Explanation of Solution

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...

Want to see the full answer?

Chapter 3 Solutions

Solution Summary: The author explains how the load effective address instruction "leaq" reads memory to a register, but memory is not referenced at all.

Concept explainers

Explanation of Solution

Rearranged ordering provides greater security: In protected code, the local variables “v” is placed closer to stack top than “buf”...

Want to see the full answer?

Chapter 3 Solutions

Rearranged ordering provides greater security:

In protected code, the local variables “v” is placed closer to stack top than “buf”...