sdcc/support/regression/tests/using.c.in

   1 /** Test register bank allocation for the "using" keyword.
   2   using: no_proto, impl, both
   3 */
   4 #include <testfwk.h>
   5
   6 #define _{using}
   7
   8 #if defined (__SDCC_mcs51) && defined (__SDCC_MODEL_SMALL)
   9
  10   #ifndef _no_proto
  11     #if defined (_both)
  12       void my_isr (void) __interrupt (1) __using (1);
  13     #else
  14       void my_isr (void) __interrupt (1);
  15     #endif
  16   #endif
  17
  18   __data char array[8];
  19
  20   void
  21   my_isr (void) __interrupt (1) __using (1)
  22   {
  23     array[array[0]] = 1; //generate some register pressure
  24   }
  25
  26 #endif
  27
  28 void
  29 testUsing (void)
  30 {
  31 #if defined (__SDCC_mcs51) && defined (__SDCC_MODEL_SMALL)
  32   ASSERT ((unsigned char)(&array[0]) >= 0x10);
  33   ASSERT ((unsigned char)&__numTests >= 0x10);
  34 #endif
  35 }