What does BNE mean in UNCLASSIFIED

Meaning of BNE

The BNE instruction checks if the values stored in two registers or memory locations are not equal. If the values are indeed not equal, the program counter is updated to the address specified in the instruction. Otherwise, the program counter is incremented by the length of the BNE instruction.

Operation

The syntax of the BNE instruction is as follows:

BNE <label>

Where <label> is the address to branch to if the values are not equal.

Uses of BNE

The BNE instruction is commonly used in conditional branching, where the execution of subsequent instructions depends on the outcome of the comparison. For example, the following code snippet uses BNE to compare two input numbers, num1 and num2, and prints "Not Equal" if they are not equal:

Compare:
    bne NotEqual
    ; Code to execute if num1 = num2
NotEqual:
    ; Code to execute if num1 != num2

Advantages of BNE

• Provides efficient conditional branching.
• Reduces the need for complex if-else statements in high-level languages.
• Improves code readability and maintainability.

Disadvantages of BNE

• Can lead to increased code size if there are many conditional branches.
• Requires careful handling of boundary conditions.