test/objlink.c

   1 /*
   2  * test source file for assembling to Microsoft 16-bit .OBJ
   3  * build with (16-bit Microsoft C):
   4  *    nasm -f obj objtest.asm
   5  *    cl /AL objtest.obj objlink.c
   6  * other compilers should work too, provided they handle large
   7  * model in the same way as MS C
   8  */
   9
  10 #include <stdio.h>
  11
  12 char text[] = "hello, world\n";
  13
  14 extern void function(char *);
  15 extern int bsssym, commvar;
  16 extern void *selfptr;
  17 extern void *selfptr2;
  18
  19 int main(void) {
  20     printf("these should be identical: %p, %p\n",
  21            (long) selfptr, (long) &selfptr);
  22     printf("these should be equivalent but different: %p, %p\n",
  23            (long) selfptr2, (long) &selfptr2);
  24     printf("you should see \"hello, world\" twice:\n");
  25     bsssym = 0xF00D;
  26     commvar = 0xD00F;
  27     function(text);
  28     printf("this should be 0xF00E: 0x%X\n", bsssym);
  29     printf("this should be 0xD00E: 0x%X\n", commvar);
  30     return 0;
  31 }