SRR - Shift Right Register

Single register instruction

| Byte 1       | Byte 2              |
|--------------|---------------------|
|      |       | 7 6 5 | 4 | 3 2 1 0 |
|   3      4   | R     | 0 |    I    |

• R - Register pair indicator, 0 = A, 1 = B etc.
• I - Immediate. Register is arithmetic shifted right by 1 + I

Pseudocode

temp = R
do
   L = temp & 1
   temp >>= 1
while (I--)
R = temp
M = R & 8000
V = R == 0