; math.vasm — raw bytecode, hand-written in VuurRaaf assembly.
; Assemble + link + run with:
;   vr assemble examples/math.vasm
;   vr link math.vobj -o math.vbin
;   vr run math.vbin

.global main

main:
    push_int 6
    push_int 7
    mul
    println
    push_str "computed 6 * 7 = 42"
    println
    push_int 40
    push_int 2
    call add 2        ; calls the exported `add` symbol below
    println
    halt

; a callable function: takes two args, returns their sum
.global add
add:
    enter 0           ; no extra locals (args were copied in by `call`)
    load 0
    load 1
    add
    retv