Arm Assembly

Question 1 Write a single ARM assembly instruction equivalent to the following instruction sequence MOV r1, r1, LSL #4 SUB rl, r2, rl Write a single ARM assembly instruction which will multiply an integer stored in r3 by 33, placing the product in r4. Do not use an explicit multiplication instruction (MLA, MUL, SMLAL, or SMULL) Write a single ARM assembly instruction equivalent to the following MOV r10, #0x22 SUB r11, r10, r8 Write a short ARM assembly program which loads the value 0x08CB85A1 into register rO. You may only use the instructions AND and OR, as well as the barrel shifter. Assume all source registers may be used as scratch registers Question 5 Write a short ARM assembly program that evaluates the following expression. You should not destroy the value of any register other than r0 which will get the computed expression value (and of course R15, which is the PC) rO(r3r4 r5) 18+156 (4 r1) Question 6 Which ones of the following are valid ARM immediates and which ones are not valid? For invalid immediates, explain why they are invalid #0xC000000A #0x0ab1 0000 #0x00002D80 #0x0000030E #9536