add  register:rw, value:r
add  register:r, register:r, register:w
dec  register:rw
div  register:r, register:r, register:w
div  register:rw, register:r
inc  register:rw
mul  register:r, register:r, register:w
mul  register:rw, value:r
sub  register:r, register:r, register:w
sub  register:rw, value:r

je   subroutine
jne  subroutine

mov  register:w, value:r
mov  register:w, register:r
pop  register:w
push register:r

cmp  register:r, register:r
len  register:r, register:w

prt  value:r
prt  register:r
call subroutine
jmp  subroutine
ret
nop

; wenn called with call use ret
call_me:
mov ax, 4
prt ax
ret