Apollo's assembly.

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1 total messages Started by Pham Tue, 26 Nov 1985 17:27

Author: Pham
Date: Tue, 26 Nov 1985 17:27

30 lines
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Oops! Sorry . My previous message was filled by the sdm command.
I would like to write an assembly subroutine which can access
globol variables declared in C subroutine.
Ex:

/* This is a C subroutine */
long int L1, L2;
C_sub()
{
   extern int A_sub();
   L1 = 1;
   A_sub(L1, L2);
}

* This is an Assembly subroutine
     module     A_sub
     entry.p    A_sub
* How to declared external L1 & L2 ???
*
A_sub
     clr.l      d0
     cmp.l      L1,d0
     beq.s      done
     move.l     #100,L2
done
     rts
     end        A_sub

Thank you for your help
Minh Pham

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