;-----------------------------------
; File: JVM1-0.a
; Author:  Dale Skrien
; Class:  CS232, Spring 2008
; This program reads in an integer x and
;     outputs 1 if x >= 0 or -1 if x < 0.
;-----------------------------------

        input      ; read x and push it on the stack
        iflt less  ; pop x and if x < 0, then jump to label less
        iconst_1   ; push a 1 on the stack
        goto end   ; jump to the label end
less:   iconst_-1  ; push a -1 on the stack
end:    output     ; pop the 1 or -1 and write it out
        exit       ; halt