Prompt for and Read Integer

# pread -- prompt for and read an integer
#
# on entry:
#    $ra -- return address
#
# on exit:
#    $v0 -- the integer

pread:   
         la    $a0,prompt        # print string
         li    $v0,4             # service 4
         syscall
        
         li    $v0,5             # read int into $v0
         syscall                 # service 5
        
               # return
 
         nop                     # branch delay slot
                
         .data
prompt:
         .asciiz "Enter an integer"