Question

Okay When I was making macros I couldn’t get the loop to work proper if I did.

    move macro x,y
          mov   esi, 0 
          mov   ecx, SIZEOF x       
          a:
          mov   al, x[esi]
          mov   y[esi], al
          inc   esi
          LOOP a
endm

But when I add a parameter and change the label it works fine

move macro x,y,a
          mov   esi, 0 
          mov   ecx, SIZEOF x       
          a:
          mov   al, x[esi]
          mov   y[esi], al
          inc   esi
          LOOP a
endm

When I call the macro I do something along the line of
move a,b,L1
move c,d,L2

But I’m not sure why its working..

Answer 1

If you don’t parameterize the label, you’ll put the same label in every instance where you use the macro. You can’t have the same label name at more than one place. Your solution looks reasonable, but your assembler might also support local labels (@@: in some, numbered like 1: in others), which would also solve your problem and in an easier-to-use way.