main:
    ldw a, 87
    str a, 0x3EC
    ldw a, 101
    str a, 0x3ED
    ldw a, 108
    str a, 0x3EE
    ldw a, 99
    str a, 0x3EF
    ldw a, 111
    str a, 0x3F0
    ldw a, 109
    str a, 0x3F1
    ldw a, 101
    str a, 0x3F2
    ldw a, 33
    str a, 0x3F3
    ldw a, 10
    str a, 0x3F4
    ldw a, 0
    str a, 0x3F5
    ldw a, 0x3EC
    str a, 0x400
    ldw d, 0
    ldr b, 0x400
    ldw c, 1
    string_loop:
    ldb a, b
    beq a, d, string_end
    int 0x00
    add b, c
    jmp string_loop
    string_end:
    int 0xFF