git.gag.com Git - fw/sdcc/blob - support/regression/tests/bug1723128.c

   1 /*
   2         bug 1723128
   3 */
   4
   5 #include <testfwk.h>
   6 #include <stdbool.h>
   7
   8 union USUINT {
   9     unsigned int value;
  10     struct {
  11         unsigned char A;   // LS byte
  12         unsigned char B;   // HS byte
  13     };
  14 };                         // could name variables here
  15
  16 typedef struct {
  17     unsigned char CRC_seed;                    // 1
  18     union USUINT cal_burst_duration;           // 3
  19     union USUINT cal_calibration;              // 5
  20     union USUINT cal_number_of_bursts;         // 7
  21     union USUINT cal_holdoff_delay;            // 9
  22     unsigned char CRC;                         // 10
  23 } AUTOCAL_CFG;
  24
  25 code at (0x8000) AUTOCAL_CFG AutoCal_CFG = {0};
  26
  27 static code unsigned char crc_table[256] =
  28 {   0x00,0x2F,0x5E,0x71,0xBC,0x93,0xE2,0xCD,
  29     0x57,0x78,0x09,0x26,0xEB,0xC4,0xB5,0x9A,
  30     0xAE,0x81,0xF0,0xDF,0x12,0x3D,0x4C,0x63,
  31     0xF9,0xD6,0xA7,0x88,0x45,0x6A,0x1B,0x34,
  32     0x73,0x5C,0x2D,0x02,0xCF,0xE0,0x91,0xBE,
  33     0x24,0x0B,0x7A,0x55,0x98,0xB7,0xC6,0xE9,
  34     0xDD,0xF2,0x83,0xAC,0x61,0x4E,0x3F,0x10,
  35     0x8A,0xA5,0xD4,0xFB,0x36,0x19,0x68,0x47,
  36     0xE6,0xC9,0xB8,0x97,0x5A,0x75,0x04,0x2B,
  37     0xB1,0x9E,0xEF,0xC0,0x0D,0x22,0x53,0x7C,
  38     0x48,0x67,0x16,0x39,0xF4,0xDB,0xAA,0x85,
  39     0x1F,0x30,0x41,0x6E,0xA3,0x8C,0xFD,0xD2,
  40     0x95,0xBA,0xCB,0xE4,0x29,0x06,0x77,0x58,
  41     0xC2,0xED,0x9C,0xB3,0x7E,0x51,0x20,0x0F,
  42     0x3B,0x14,0x65,0x4A,0x87,0xA8,0xD9,0xF6,
  43     0x6C,0x43,0x32,0x1D,0xD0,0xFF,0x8E,0xA1,
  44     0xE3,0xCC,0xBD,0x92,0x5F,0x70,0x01,0x2E,
  45     0xB4,0x9B,0xEA,0xC5,0x08,0x27,0x56,0x79,
  46     0x4D,0x62,0x13,0x3C,0xF1,0xDE,0xAF,0x80,
  47     0x1A,0x35,0x44,0x6B,0xA6,0x89,0xF8,0xD7,
  48     0x90,0xBF,0xCE,0xE1,0x2C,0x03,0x72,0x5D,
  49     0xC7,0xE8,0x99,0xB6,0x7B,0x54,0x25,0x0A,
  50     0x3E,0x11,0x60,0x4F,0x82,0xAD,0xDC,0xF3,
  51     0x69,0x46,0x37,0x18,0xD5,0xFA,0x8B,0xA4,
  52     0x05,0x2A,0x5B,0x74,0xB9,0x96,0xE7,0xC8,
  53     0x52,0x7D,0x0C,0x23,0xEE,0xC1,0xB0,0x9F,
  54     0xAB,0x84,0xF5,0xDA,0x17,0x38,0x49,0x66,
  55     0xFC,0xD3,0xA2,0x8D,0x40,0x6F,0x1E,0x31,
  56     0x76,0x59,0x28,0x07,0xCA,0xE5,0x94,0xBB,
  57     0x21,0x0E,0x7F,0x50,0x9D,0xB2,0xC3,0xEC,
  58     0xD8,0xF7,0x86,0xA9,0x64,0x4B,0x3A,0x15,
  59     0x8F,0xA0,0xD1,0xFE,0x33,0x1C,0x6D,0x42
  60 };
  61
  62 data unsigned char crc;
  63
  64 static xdata unsigned char rx_buffer[8];
  65 static unsigned char rx_index;
  66
  67 bool VerifyCRC(void)
  68 {
  69     unsigned char i;
  70
  71     crc = 0 ;
  72
  73     for (i=0; i<(rx_index-1); i++)
  74         crc = crc_table[rx_buffer[i] ^ crc] ;
  75         return (crc == rx_buffer[rx_index-1]) ;
  76 }
  77
  78 void
  79 testBug(void)
  80 {
  81         rx_index = 1;
  82         ASSERT (VerifyCRC());
  83 }