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annotate test/offset.c @ 838:c7c19e5aefe7

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CAST (left value) and BITFIELD
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 03 Dec 2010 22:06:34 +0900
parents c2c709727221
children
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1 extern int printf(const char *,...);
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2
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3 #ifndef INLINE
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4 #define INLINE
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5 #endif
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6
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7 #define BIT8 260
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8 #define BIT10 1030
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9 #define BIT12 5000
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10 #define BIT16 (65536*2)
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11
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12 int midium[BIT12];
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13 int large[BIT16];
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14
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15 static INLINE int
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16 main0(int ac,char *av[])
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17 {
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18 int *p;
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19 int local_midium[BIT12];
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20 int local_large[BIT16];
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21
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22 #if 0
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23 printf("#0022:int ac =\t%x\n",&ac);
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24 printf("#0023:int midium[0] =\t%x\n",&midium[0]);
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25 printf("#0024:int midium[BIT12] =\t%x\n",&midium[BIT12]);
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26 printf("#0025:int large[0] =\t%x\n",&large[0]);
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27 printf("#0026:int large[BIT16] =\t%x\n",&large[BIT16]);
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28 printf("#0027:int local_midium[0] =\t%x\n",&local_midium[0]);
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29 printf("#0028:int local_midium[BIT12] =\t%x\n",&local_midium[BIT12]);
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30 printf("#0029:int local_large[0] =\t%x\n",&local_large[0]);
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31 printf("#0030:int local_large[BIT16] =\t%x\n",&local_large[BIT16]);
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32 #endif
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33
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34 midium[0]=0x55;
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35 large[0]=0x55;
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36 local_midium[0]=0x55;
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37 local_large[0]=0x55;
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38
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39 midium[BIT8]=0x50;
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40 large[BIT8]=0x50;
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41 local_midium[BIT8]=0x50;
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42 local_large[BIT8]=0x50;
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43
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44 midium[BIT10]=0xa0;
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45 large[BIT10]=0xa0;
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46 local_midium[BIT10]=0xa0;
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47 local_large[BIT10]=0xa0;
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48
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49 midium[BIT12-1]=0xaa;
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50 large[BIT16-1]=0xaa;
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51 local_midium[BIT12-1]=0xaa;
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52 local_large[BIT16-1]=0xaa;
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53
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54 printf("#0053:%x\n", midium[0]);
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55 printf("#0054:%x\n", large[0]);
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56 printf("#0055:%x\n", local_midium[0]);
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57 printf("#0056:%x\n", local_large[0]);
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58
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59 printf("#0058:%x\n", midium[BIT8]);
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60 printf("#0059:%x\n", large[BIT8]);
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61 printf("#0060:%x\n", local_midium[BIT8]);
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62 printf("#0061:%x\n", local_large[BIT8]);
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63
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64 printf("#0063:%x\n", midium[BIT10]);
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65 printf("#0064:%x\n", large[BIT10]);
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66 printf("#0065:%x\n", local_midium[BIT10]);
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67 printf("#0066:%x\n", local_large[BIT10]);
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69 printf("#0068:%x\n", midium[BIT12-1]);
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70 printf("#0069:%x\n", large[BIT16-1]);
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71 printf("#0070:%x\n", local_midium[BIT12-1]);
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72 printf("#0071:%x\n", local_large[BIT16-1]);
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73
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74 p = local_large+BIT16;
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75
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76 p[-1] = 0xaa;
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77 p[-BIT8] = 0xbb;
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78 p[-BIT10] = 0xcc;
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79 p[-(BIT12-1)] = 0xdd;
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80 p[-(BIT16-1)] = 0xee;
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81
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82 printf("#0081:%x\n", p[-1]);
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83 printf("#0082:%x\n", p[-BIT8]);
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84 printf("#0083:%x\n", p[-BIT10]);
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85 printf("#0084:%x\n", p[-(BIT12-1)]);
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86 printf("#0085:%x\n", p[-(BIT16-1)]);
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87
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88 p = large+BIT16;
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89
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90 p[-1] = 0xaa;
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91 p[-BIT8] = 0xbb;
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92 p[-BIT10] = 0xcc;
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93 p[-(BIT12-1)] = 0xdd;
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94 p[-(BIT16-1)] = 0xee;
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95
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96 printf("#0095:%x\n", p[-1]);
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97 printf("#0096:%x\n", p[-BIT8]);
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98 printf("#0097:%x\n", p[-BIT10]);
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99 printf("#0098:%x\n", p[-(BIT12-1)]);
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100 printf("#0099:%x\n", p[-(BIT16-1)]);
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101
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102
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103 for(p=local_midium;p<&local_midium[BIT12];p++) *p = p-local_midium;
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104 for(p=local_large;p<&local_large[BIT16];p++) *p = p-local_large;
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105
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106 for(p=midium;p<&midium[BIT12];p++) *p = p-midium;
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107 for(p=large;p<&large[BIT16];p++) *p = p-large;
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108 return 0;
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109 }
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111 int
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112 main(int ac,char *av[])
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113 {
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114 int i=-1,j=-2,k=-3;
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115
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116 main0(ac,av);
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117
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118 printf("#0117:%d %d %d %d\n",ac,i,j,k);
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119 return 0;
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120 }
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121