1 | /*------------------------------------------------------------\ |
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2 | | | |
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3 | | Tool : systemcass | |
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4 | | | |
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5 | | File : sc_logic.h | |
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6 | | | |
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7 | | Author : Buchmann Richard | |
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8 | | | |
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9 | | Date : 14_04_2005 | |
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10 | | | |
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11 | \------------------------------------------------------------*/ |
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12 | #ifndef __SC_LOGIC_H__ |
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13 | #define __SC_LOGIC_H__ |
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14 | |
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15 | // ---------------------------------------------------------------------------- |
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16 | // CLASS : sc_logic |
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17 | // |
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18 | // ---------------------------------------------------------------------------- |
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19 | |
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20 | #include "sc_nbdefs.h" |
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21 | #include "sc_fwd.h" |
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22 | |
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23 | namespace sc_dt { |
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24 | |
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25 | // ---------------------------------------------------------------------------- |
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26 | // ENUM : sc_logic_value_t |
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27 | // |
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28 | // Enumeration of logic values. |
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29 | // ---------------------------------------------------------------------------- |
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30 | |
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31 | enum sc_logic_value_t |
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32 | { |
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33 | Log_0 = 0, |
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34 | Log_1, |
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35 | Log_Z, |
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36 | Log_X |
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37 | }; |
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38 | |
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39 | class sc_logic |
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40 | { |
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41 | public: |
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42 | // constructors & destructor |
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43 | sc_logic (); |
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44 | sc_logic (const sc_logic & a); |
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45 | sc_logic (sc_logic_value_t v); |
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46 | explicit sc_logic (bool a); |
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47 | explicit sc_logic (char a); |
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48 | explicit sc_logic (int a); |
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49 | explicit sc_logic (const sc_bit & a); |
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50 | ~sc_logic (); |
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51 | // assignment operators |
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52 | sc_logic & operator = (const sc_logic & a); |
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53 | sc_logic & operator = (sc_logic_value_t v); |
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54 | sc_logic & operator = (bool a); |
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55 | sc_logic & operator = (char a); |
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56 | sc_logic & operator = (int a); |
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57 | sc_logic & operator = (const sc_bit & a); |
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58 | // bitwise assignment operators |
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59 | sc_logic & operator &= (const sc_logic & b); |
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60 | sc_logic & operator &= (sc_logic_value_t v); |
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61 | sc_logic & operator &= (bool b); |
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62 | sc_logic & operator &= (char b); |
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63 | sc_logic & operator &= (int b); |
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64 | sc_logic & operator |= (const sc_logic & b); |
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65 | sc_logic & operator |= (sc_logic_value_t v); |
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66 | sc_logic & operator |= (bool b); |
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67 | sc_logic & operator |= (char b); |
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68 | sc_logic & operator |= (int b); |
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69 | sc_logic & operator ^= (const sc_logic & b); |
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70 | sc_logic & operator ^= (sc_logic_value_t v); |
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71 | sc_logic & operator ^= (bool b); |
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72 | sc_logic & operator ^= (char b); |
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73 | sc_logic & operator ^= (int b); |
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74 | // bitwise complement |
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75 | const sc_logic operator ~ () const; |
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76 | sc_logic & b_not (); |
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77 | // bitwise and |
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78 | friend const sc_logic operator & (const sc_logic & a, const sc_logic & b); |
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79 | friend const sc_logic operator & (const sc_logic & a, sc_logic_value_t b); |
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80 | friend const sc_logic operator & (const sc_logic & a, bool b); |
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81 | friend const sc_logic operator & (const sc_logic & a, char b); |
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82 | friend const sc_logic operator & (const sc_logic & a, int b); |
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83 | friend const sc_logic operator & (sc_logic_value_t a, const sc_logic & b); |
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84 | friend const sc_logic operator & (bool a, const sc_logic & b); |
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85 | friend const sc_logic operator & (char a, const sc_logic & b); |
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86 | friend const sc_logic operator & (int a, const sc_logic & b); |
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87 | // bitwise or |
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88 | friend const sc_logic operator | (const sc_logic & a, const sc_logic & b); |
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89 | friend const sc_logic operator | (const sc_logic & a, sc_logic_value_t b); |
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90 | friend const sc_logic operator | (const sc_logic & a, bool b); |
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91 | friend const sc_logic operator | (const sc_logic & a, char b); |
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92 | friend const sc_logic operator | (const sc_logic & a, int b); |
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93 | friend const sc_logic operator | (sc_logic_value_t a, const sc_logic & b); |
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94 | friend const sc_logic operator | (bool a, const sc_logic & b); |
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95 | friend const sc_logic operator | (char a, const sc_logic & b); |
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96 | friend const sc_logic operator | (int a, const sc_logic & b); |
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97 | // bitwise xor |
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98 | friend const sc_logic operator ^ (const sc_logic & a, const sc_logic & b); |
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99 | friend const sc_logic operator ^ (const sc_logic & a, sc_logic_value_t b); |
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100 | friend const sc_logic operator ^ (const sc_logic & a, bool b); |
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101 | friend const sc_logic operator ^ (const sc_logic & a, char b); |
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102 | friend const sc_logic operator ^ (const sc_logic & a, int b); |
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103 | friend const sc_logic operator ^ (sc_logic_value_t a, const sc_logic & b); |
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104 | friend const sc_logic operator ^ (bool a, const sc_logic & b); |
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105 | friend const sc_logic operator ^ (char a, const sc_logic & b); |
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106 | friend const sc_logic operator ^ (int a, const sc_logic & b); |
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107 | // relational operators and functions |
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108 | friend bool operator == (const sc_logic & a, const sc_logic & b); |
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109 | friend bool operator == (const sc_logic & a, |
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110 | sc_logic_value_t b); |
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111 | friend bool operator == (const sc_logic & a, bool b); |
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112 | friend bool operator == (const sc_logic & a, char b); |
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113 | friend bool operator == (const sc_logic & a, int b); |
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114 | friend bool operator == (sc_logic_value_t a, const sc_logic & b); |
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115 | friend bool operator == (bool a, const sc_logic & b); |
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116 | friend bool operator == (char a, const sc_logic & b); |
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117 | friend bool operator == (int a, const sc_logic & b); |
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118 | friend bool operator != (const sc_logic & a, const sc_logic & b); |
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119 | friend bool operator != (const sc_logic & a, sc_logic_value_t b); |
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120 | friend bool operator != (const sc_logic & a, bool b); |
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121 | friend bool operator != (const sc_logic & a, char b); |
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122 | friend bool operator != (const sc_logic & a, int b); |
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123 | friend bool operator != (sc_logic_value_t a, const sc_logic & b); |
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124 | friend bool operator != (bool a, const sc_logic & b); |
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125 | friend bool operator != (char a, const sc_logic & b); |
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126 | friend bool operator != (int a, const sc_logic & b); |
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127 | // explicit conversions |
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128 | sc_logic_value_t value () const; |
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129 | bool is_01 () const; |
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130 | bool to_bool () const; |
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131 | char to_char () const; |
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132 | /* |
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133 | // other methods |
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134 | void print (std::ostream & os = std::cout) const; |
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135 | void scan (std::istream & is = std::cin); |
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136 | */ |
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137 | // memory (de);allocation |
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138 | static void *operator new (size_t, void *p); // placement new |
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139 | static void *operator new (size_t sz); |
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140 | static void operator delete (void *p, size_t sz); |
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141 | static void *operator new[] (size_t sz); |
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142 | static void operator delete[] (void *p, size_t sz); |
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143 | private: |
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144 | // disabled |
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145 | explicit sc_logic (const char *); |
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146 | sc_logic & operator = (const char *); |
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147 | }; |
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148 | |
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149 | extern const sc_logic SC_LOGIC_0; |
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150 | extern const sc_logic SC_LOGIC_1; |
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151 | extern const sc_logic SC_LOGIC_Z; |
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152 | extern const sc_logic SC_LOGIC_X; |
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153 | |
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154 | } /* end of sc_dt namespace */ |
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155 | |
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156 | #endif /* __SC_LOGIC_H__ */ |
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