Multiple choice

Which of the following instructions in flag manipulation instruction is used to set the direction flag equal to 1 which causes string instructions to autodecrement SI or DI registers?

  1. STC

  2. STD

  3. STI

  4. CLC

  5. CLD

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

STC instruction sets the carry flag and causes the string instructions to autodecrement SI or DI registers.