19The value of b is stored in r1, c is stored in r2, and a is stored in r0. Which set of ARM instructions will accomplish a = b & c?
Question
19The value of b is stored in r1, c is stored in r2, and a is stored in r0. Which set of ARM instructions will accomplish a = b & c?
Solution
The ARM instructions to accomplish a = b & c would be:
MOV r0, r1
AND r0, r0, r2
Here's the step by step explanation:
-
MOV r0, r1: This instruction moves the value ofr1(which isb) intor0(which isa). So, nowaequalsb. -
AND r0, r0, r2: This instruction performs a bitwise AND operation on the values ofr0(which is nowb) andr2(which isc), and stores the result back intor0(which isa). So, nowaequalsb & c.
Similar Questions
Registers X1, X2, X3 have corresponding data stored in each location: X1: AX2: BX3: C Which set of ARM instructions will accomplish A=B+C?
22Given this set of ARM instructions, where b is at offset 0, e is at offset 8, and a is at offset 24: LDUR X1, [X0,#0]LDUR X2, [X0,#8]ADD X3, X1, X2STUR X3, [X0,#24] What is the corresponding C language statement? a = b + e; a = e + a; a = a + e; a = b + a;
Find the Target Address (TA) for the following machine instructions. Indicate the values stored in A. Content of X =000090 B=006000 PC=003000i)032600h ii)003600
The variables f and g are assigned to the registers X3 and X4, respectively in these ARM instructions. Loop: SUBS XZR, X3, X4 B.GE Exit LSL X3, X3, 1 B LoopExit: What are the corresponding statements in the C language?
Consider an instructionADD R1 , R2. ( Add the contents of Register R2 to the contents of Register R1)Give the steps (micro operations) involved in the execution of an above given instruction.Answer:MAR ← PCMDR ← Mem[MAR]IR← MDRR1← R1+R2PC← PC+4
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.