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Questions and Answers
What is the two-letter abbreviation for the accumulator register in 32-bit mode?
What is the two-letter abbreviation for the accumulator register in 32-bit mode?
- AX
- EX
- RAX
- EAX (correct)
Which register is used as the base register and can be accessed in 8-bit LSB as BL and in 8-bit MSB as BH?
Which register is used as the base register and can be accessed in 8-bit LSB as BL and in 8-bit MSB as BH?
- DX
- BX (correct)
- AX
- CX
What does the 'E' prefix in 'EAX' indicate in the x86 architecture?
What does the 'E' prefix in 'EAX' indicate in the x86 architecture?
- Eight-bit
- Enhanced
- Extended (correct)
- Existing
Which register can be accessed as CL for its least significant byte and CH for its most significant byte?
Which register can be accessed as CL for its least significant byte and CH for its most significant byte?
How many ways are there to access the accumulator, counter, data, and base registers in the x86 architecture?
How many ways are there to access the accumulator, counter, data, and base registers in the x86 architecture?
In the x86 architecture, which registers are accessed using an 'R' prefix in their 64-bit versions?
In the x86 architecture, which registers are accessed using an 'R' prefix in their 64-bit versions?
What is the purpose of the EFLAGS register in x86 architecture?
What is the purpose of the EFLAGS register in x86 architecture?
How is negative integers represented in binary using Two's Complement?
How is negative integers represented in binary using Two's Complement?
What does the x86 architecture use to write multi-byte values in memory?
What does the x86 architecture use to write multi-byte values in memory?
How many general-purpose registers are available in 64-bit x86 architecture?
How many general-purpose registers are available in 64-bit x86 architecture?
In x86 assembly language, what do addressing modes determine?
In x86 assembly language, what do addressing modes determine?
Which register contains the address of the next instruction to be executed if no branching is done?
Which register contains the address of the next instruction to be executed if no branching is done?
