Suppose R0 = 0x20000000, R1 = 0x12345678 and R2 = 0x00000001. All bytes in memory are initialized to 0x00. The following assembly program has been executed successfully. STR R1, [RO], #4 STR R1, [RO, #4]! STR R1, [RO, #4] LDR R1, [RO], -R2, LSL#3 LDR R1, [RO, R2, LSR#1] a) What are the register R0, R1 and R2 values after each instruction. b) Show the corresponding memory values after each instruction if the processor uses Big (20 points) Endian.