jump destination too far : by 3 byte(s)

Question

I m having a problem with my loop, the code contained in it is long and it gives me error jump destination too far : by 3 byte(s). When ı remove:

mo         


        

Answer 1

loop has limited range. It can only jump up to 127 bytes ahead or 128 back in the instruction stream measured from the start of the following instruction.

To get around that, you can do something like the following.

Instead of

label1:



loop label1 

if the label is out of reach you can do something like this:

label1:



loop tmp1
jmp tmp2
tmp1:
  jmp label1
tmp2:

or else use a different construct based on conditional jumps that don't have the range limitation.