.section data $0x0 {
    number: .u8 $10

    main:
        ; Test subtraction
        mov %status, $1
        mov %r0, (number)u8
        sub %r0, $1
        cmpeq %r0, $9
        jz end

        ; Test subtraction from a register
        mov %status, $2
        mov %r1, $2
        sub %r0, %r1
        cmpeq %r0, $7
        jz end
        
        ; Test subtraction overflow
        mov %status, $3
        sub %r0, $8
        cmpeq %r0, $0xFFFFFFFFFFFFFFFF
        jz end

        mov %status, $0
    end:
        halt

    .export main
}

.meta {
    entry: main
}