Nios/invert

Write a function that returns the bitwise inversion of its parameter.

int invert (int n);

Expected solution length: Around 2 lines.

Sample Input

Sample Output

0xfffffffe

.global _start
_start:
    movia r4, 1    # First function parameter is always passed through r4.
    call invert    # Return value is always in r2.
    1: br 1b    # Done

.global invert
invert:

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Nios/invert

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Sample Input

Sample Output

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Solution