Arm/add

Write a function that returns the sum of its two parameters. The parameters and return values are both 32-bit integers. As always, the first parameter is in r0 and the second parameter is in r1.

int add (int a, int b);

Expected solution length: Around 2 lines.

Sample Input

(1, 1)

Sample Output

.global _start
_start:
    mov r0, #1  // First function parameter is always passed through r0.
    mov r1, #1  // Second function parameter is always passed through r1.
    bl add      // Return value is always in r0.
    1: b 1b     // Done

.global add
add:

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