sdcc/support/regression/tests/bug3482146.c

   1 /*
   2   Bug #3482146.
   3 */
   4
   5 #include <testfwk.h>
   6
   7 void
   8 testBug(void)
   9 {
  10 #if !defined(__SDCC_mcs51) && !defined(__SDCC_pdk14) && !defined(__SDCC_pdk15) // Lack of memory
  11   unsigned char buff[176];
  12   unsigned char i;
  13   for(i = 0; i < 22*8; ++i)
  14     buff[i] = 0xff;
  15   buff[0] = buff[1] = 0x42;
  16   i = buff[0] - buff[1]; // The bug doesn't occur if you just use "i=0;"
  17
  18   buff[88 + i] = buff[16 + i];
  19
  20   buff[8 + i] = buff[i] >> 1;
  21   buff[16 + i] = buff[8+i] >> 1;        // This operation will not write into the right memory address
  22
  23   ASSERT(buff[16] == 0x10);
  24 #endif
  25 }
  26