Prolog

A prolog is required to push $ra if the subroutine calls another subroutine, and must push any S registers the subroutine uses. But our subroutine does neither. So, the prolog pushes nothing at all.

## maxInt -- compute the maximum of two integer arguments
##
## Input:
## $a0 -- a signed integer
## $a1 -- a signed integer
##
## Returns:
## $v0 -- maximum

         .text
         .globl maxInt

maxInt:
          # body
          move   $v0,$a0          # max = $a0
          bgt    $a0,$a1,endif    # if $a1 > $a0  
          nop
          move   $v0,$a1          #    max = $a1
endif:                            # endif 
          # epilog

The body computes the maximum of the two arguments and puts it in $v0.

Answer:

Prolog

QUESTION 13: