Intermediate
Assembly Language
Q77 / 100
What does STOS (STOSB/STOSW/STOSD) do?
Correct! Well done.
Incorrect.
The correct answer is B) Stores AL/AX/EAX to ES:EDI and updates EDI
B
Correct Answer
Stores AL/AX/EAX to ES:EDI and updates EDI
Explanation
REP STOSD fills ECX dwords at ES:EDI with EAX. Used to initialize memory blocks (e.g., memset).
Progress
77/100