Write MIPS code that converts a string containing a number into an actual number. The function to do this conversion, atoi (Array To Integer) should have a single input (the string) and output a single number (the integer). The Java/C code is as follows:

atoi(a0: array) {

int digit, number, i = 0;

while( (array[i] >= '0') && (array[i] <= '9') )

{ digit = array[i] - '0';

number = 10 * number + digit;

i++;

}

return number;

}