extern "C" int f(int *,int,int); int a[2][2] = {{11,12},{21,22}}; void setup() {   Serial.begin(115200);   while(!Serial);   delay(500);     int *arr = (int*)a;    Serial.println(f(arr,2,2)); } void loop() { } .global f f:  ldr r3,[r0] // get first element mov r2,#0 add r2,r3 mov r1, #3 lp: add r0,#4 // add next element ldr r3,[r0] add r2,r3 sub r1,#1 bgt lp mov r0,r2  bx lr Describe what operation is being performed in this code

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A: Required:

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A: The output along with the explanation is given below:

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.