Intermediate
Assembly Language
Q83 / 100
What is long mode (64-bit mode) in x86-64?
Correct! Well done.
Incorrect.
The correct answer is B) The 64-bit operating mode of x86-64 processors with 64-bit addresses, 16 GPRs, and flat segmentation (mostly disabled segment limits)
B
Correct Answer
The 64-bit operating mode of x86-64 processors with 64-bit addresses, 16 GPRs, and flat segmentation (mostly disabled segment limits)
Explanation
Long mode (IA-32e) provides 64-bit addresses (48 bits currently used), 16 GPRs (RAX-R15), REX prefixes for 64-bit operands, and eliminates most legacy segment limits.
Progress
83/100