sdcc/support/regression/tests/bug-2750.c

   1 /*
   2    bug1-2195.c
   3
   4    frontend used | in place of ^.
   5 */
   6
   7 #include <testfwk.h>
   8
   9 typedef struct
  10   {
  11   unsigned LATC0                : 1;
  12   unsigned LATC1                : 1;
  13   unsigned LATC2                : 1;
  14   unsigned LATC3                : 1;
  15   unsigned LATC4                : 1;
  16   unsigned LATC5                : 1;
  17   unsigned LATC6                : 1;
  18   unsigned LATC7                : 1;
  19   } LATCbits_t;
  20
  21 #if defined(__SDCC_pic14) // pic14: LATCbits may actually exist in the device
  22 #  define LATCbits fake_LATCbits
  23 #endif
  24
  25 volatile LATCbits_t LATCbits;
  26
  27 unsigned short mask;
  28
  29 void set_bits(unsigned char sn)
  30 {
  31     LATCbits.LATC0 = ((mask >> sn) & 1) ^ ~0x1;
  32 }
  33
  34 volatile unsigned char bit;
  35
  36 void testBug(void)
  37 {
  38     LATCbits.LATC0 = 1;
  39     mask = 0x00;
  40     bit = 0;
  41     set_bits(bit);
  42     ASSERT(!LATCbits.LATC0);
  43 }
  44