Assembler #8

%include "gt.asm"
         covar
a:       resd 1
nul:     dd 0
         inleiding
         inv [a]
         mov EAX, [a]
         cmp EAX, [nul]
         jge toon
         sub EAX, [a]
         sub EAX, [a]
toon:    mov [a], EAX
         uit [a]
         slot