除整数并将结果打印为MIPS Assembly中的浮点数

Question

I am working on an assignment that reads in integers and puts them into an array until a negative one is entered. I have to find the mean of the integers but the results must be printed out as a float. I've tried several ways of doing this but so far when i run it on QTSpim, the result says 'nan'.

Here is the portion of my code

mfc1 $t6, $f1 #t6 is the sum
cvt.s.w $f1, $f1 
mfc1 $t7, $f2 #t7 is the number of ints
cvt.s.w $f2, $f2  
div.s $f0, $f1, $f2
mov.s $f12, $f0
li $v0, 2
syscall 

Answer 1

mfc1 is Move Word From Floating Point ( rt = fs ). You presumably want mtc1 instead ( fs = rt ).