test/cofftest.c

   1 /*
   2  * test source file for assembling to COFF
   3  * build with (under DJGPP, for example):
   4  *    nasm -f coff cofftest.asm
   5  *    gcc -o cofftest cofftest.c cofftest.o
   6  */
   7
   8 #include <stdio.h>
   9
  10 extern int lrotate(long, int);
  11 extern void greet(void);
  12 extern char asmstr[];
  13 extern void *selfptr;
  14 extern void *textptr;
  15 extern int integer, commvar;
  16
  17 int main(void) {
  18
  19     printf("Testing lrotate: should get 0x00400000, 0x00000001\n");
  20     printf("lrotate(0x00040000, 4) = 0x%08lx\n", lrotate(0x40000,4));
  21     printf("lrotate(0x00040000, 14) = 0x%08lx\n", lrotate(0x40000,14));
  22
  23     printf("This string should read `hello, world': `%s'\n", asmstr);
  24
  25     printf("The integers here should be 1234, 1235 and 4321:\n");
  26     integer = 1234;
  27     commvar = 4321;
  28     greet();
  29
  30     printf("These pointers should be equal: %p and %p\n",
  31            &greet, textptr);
  32
  33     printf("So should these: %p and %p\n", selfptr, &selfptr);
  34 }