Conditional Branch Instructions

- Some computers consider the C bit to be a borrow bit after a subtraction operation A B. A borrow does not occur if A ^ B, but a bit must be borrowed from the next most significant position if A < B. The condition for a borrow is the complement of the carry obtained when the subtraction is done by taking the 2's complement of B. For this reason, a processor that considers the C bit to be a borrow after a subtraction will complement the C bit after adding the 2's complement of the subtrahend and denote this bit a borrow.


  1. Arithmetic Instructions
  2. Branch Instructions
  3. Computer Instructions
  4. Data Transfer Instructions
  5. Formats of instructions
  6. Instructions of data handling
  7. LECTURE3.2. Text stylistics as branch of functional stylistics. Subject, tasks.
  8. Lesson 10 Branches, Services and Units of the US Armed Forces
  9. Symbolic Microinstructions

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