Question: Question 1 : change program 1, replacing the last LSL instruction with ADD r2, r1, r1, LSL #2 and return the simulation. What value is

Question 1 : change program 1, replacing the last LSL instruction

Question 1 :

change program 1, replacing the last LSL instruction with

ADD r2, r1, r1, LSL #2

and return the simulation. What value is in register r2 when the code reaches the infinite loop (the B instruction)? What is the ADD instruction actually doing?

AREA Progl, CODE,READONLY ENTRY MOV rO, #0x11 ; load initial value LSL r1,ro, #1 ; shift 1 bit left LSL r2, r1, #1 ; shift 1 bit left stop B stop i stop program END

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