sdcc/support/regression/tests/bp.c

   1 /* Base pointer tests, specifically for the z80.
   2  */
   3 #include <testfwk.h>
   4 #include <string.h>
   5
   6 int
   7 verifyBlock(char *p, char val, int len)
   8 {
   9   while (len--) {
  10     if (*p++ != val) {
  11       return 0;
  12     }
  13   }
  14   return 1;
  15 }
  16
  17 int
  18 spoil(int a)
  19 {
  20   return a;
  21 }
  22
  23 #if defined(__SDCC_pic14) || defined(__SDCC_pdk14)
  24
  25 // test devices with much less memory
  26 #define ABOVE_MEM_SIZE       20
  27 #define ABOVE_MEM_TEST_SIZE  17
  28 #define BELOW_MEM_SIZE       10
  29 #define BELOW_MEM_TEST_SIZE   7
  30
  31 #elif defined(__SDCC_mcs51) || defined(__SDCC_pic16) || defined(__SDCC_pdk15) || defined(__SDCC_STACK_AUTO)
  32
  33 // test devices with much less
  34 #define ABOVE_MEM_SIZE       30
  35 #define ABOVE_MEM_TEST_SIZE  17
  36 #define BELOW_MEM_SIZE       20
  37 #define BELOW_MEM_TEST_SIZE   7
  38
  39 #else
  40
  41 #define ABOVE_MEM_SIZE      400
  42 #define ABOVE_MEM_TEST_SIZE  17
  43 #define BELOW_MEM_SIZE      200
  44 #define BELOW_MEM_TEST_SIZE  74
  45
  46 #endif
  47
  48 void
  49 testBP(void)
  50 {
  51   char above[ABOVE_MEM_SIZE];
  52   int f;
  53   char below[BELOW_MEM_SIZE];
  54
  55   memset(above, ABOVE_MEM_TEST_SIZE, sizeof(above));
  56   memset(below, BELOW_MEM_TEST_SIZE, sizeof(below));
  57
  58   ASSERT(verifyBlock(above, ABOVE_MEM_TEST_SIZE, sizeof(above)));
  59   ASSERT(verifyBlock(below, BELOW_MEM_TEST_SIZE, sizeof(below)));
  60
  61   f = spoil(-5);
  62   spoil(f);
  63
  64   ASSERT(verifyBlock(above, ABOVE_MEM_TEST_SIZE, sizeof(above)));
  65   ASSERT(verifyBlock(below, BELOW_MEM_TEST_SIZE, sizeof(below)));
  66 }
  67