Instructions:
    INP  0b0001 | +Adress
    OUT  0b0010 | +Adress
    LDA  0b0011 | +Adress
    STA  0b0100 | +Adress
    INC  0b0101 | no Adress
    DEC  0b0110 | no Adress
    JPP  0b0111 | +Adress/Label
    JPZ  0b1000 | +Adress/Label
    JPN  0b1001 | +Adress/Label
    JPU  0b1010 | +Adress/Label
    EOJ  0b1011 | no Adress

Instruction format, [] means optional:
    instruction [mem_adress]; [Comment]

Memory:
    32 Bit Data with
    28 Bit Adresess-> 24Mb Memory

Instruction Layout:
    XXXXYYYYYYYYYYYYYYYYYYYYYYYYYYYY
    X: Instruction Opcode (4bit)
    Y: Memory Adress (28bit)

Labels will get resolved by a preprocessor and transformed to adresses on assembling time
A label can be defined at any position in a instruction (except in the comment) by writing $label_name.
So you could e.g. write

$label OUT 35

but also

OUT $label 35

Note that the first variant is recommendet for readability