a:
    push #4              / Allocate k
    st %r2 -> [sp]--     / Spill r2

    ld [fp+12] -> %r0
    mov #2 -> %r1
    add %r0, %r1 -> %r0  / Calculate (i+2) and put the result in r0

    ld [fp+16] -> %r1
    mov #5 -> %r2
    sub %r1, %r2 -> %r1  / Calculate (j-5) and put the result in r1

    mul %r0, %r1 -> %r0
    st %r0 -> [fp]       / Do k = r0 * r1

    ld [fp] -> %r0
    ld ++[sp] -> %r2     / Unspill r2
    ret

main:

    push #4              / Allocate i
    st %r2 -> [sp]--     / Spill r2
 
    mov #20 -> %r0       / Call a(10, 20) and store the result in r2
    st %r0 -> [sp]--
    mov #10 -> %r0
    st %r0 -> [sp]--
    jsr a
    pop #8
    mov %r0 -> %r2       

    mov #40 -> %r0       / Call a(30, 40) and add the result to r2
    st %r0 -> [sp]--
    mov #30 -> %r0
    st %r0 -> [sp]--
    jsr a
    pop #8
    add %r0, %r2 -> %r0
    st %r0 -> [fp]
   
    ld ++[sp] -> %r2     / Unspill r2
    ret