A prolog is required to push $ra
$ra
If the subroutine uses an S it must push it. But this subroutine can be written without S registers.
S
## maxInt -- compute the maximum of two integer arguments ## ## Input: ## $a0 -- a signed integer ## $a1 -- a signed integer ## ## Returns: ## $v0 -- maximum .text .globl maxInt maxInt: # save return address sub $sp,$sp,4 # push $ra sw $ra,($sp) # 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.
$v0
According to the rules of Stack-based Linkage ConventionStack-based Linkage, what should the epilog of this subroutine do?
