can someone solve these clearly and with detail please. Thanks.

For questions (a)-(c), assume that r0 = 0x00001234 and ri-OxABCD0000. The questions are independent [2 pts] What is the value of r0 after instruction "ORR r0, rl" is executed? a. b. [3 pts] What is the value ofrl after instruction .SXTB rl, rl" is executed? c. [3 pts] What is the value of rO after instruction "MOV ro, ro, ROR #8"is executed