1.An 8-bit barrel shifter is loaded with the value 01010101 What is the value of the shifter after a shift of three places right?

2.What are the contents of R1 after the following micro-instruction? All registers are 8 bits and initially R1 = 00001011, R2 00011011 You can assume that the addition takes place before the XOR.

I don't understand what does the +1 here means , can you show me the whole process how to do it?

R1 R1 + R2 + 1