[PDF] 6502 arithmetic shift right

  • What is the arithmetic shift to the right?

    Arithmetic Right Shift:
    In this shift, each bit is moved to the right one by one and the least significant(LSB) bit is rejected and the empty most significant bit(MSB) is filled with the value of the previous MSB.

  • What is shift right and arithmetic shift right?

    Logical right shift means shifting the bits to the right and MSB(most significant bit) becomes 0. Example: Logical right shift of number 1 0 1 1 0 1 0 1 is 0 1 0 1 1 0 1 0. Arithmetic right shift means shifting the bits to the right and MSB(most significant bit) is same as in the original number.
  • The SHR operator is shifting the bits to the right, and filling with 0 on the left. The ROL operator is rotating the bits to the left. The ROR operator is rotating the bits to the right.
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