Write a function to read the text from the input file ‘input. txt’ (on piazza) and place it in a buffer. a buffer of 80 bytes is more than enough. before you call your function, set $a0 equal to the address of the filename and $a1 to the address of the buffer where data is stored. the function should return the number of bytes read in $v0. in the main program, print an error message and terminate the program if $v0 < = 0.