[1] | 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_time.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 : 09_07_2004 | |
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| 10 | | | |
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| 11 | \------------------------------------------------------------*/ |
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[52] | 12 | |
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[1] | 13 | #ifndef __SC_TIME_H__ |
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| 14 | #define __SC_TIME_H__ |
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| 15 | |
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| 16 | #include <string> |
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| 17 | |
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[59] | 18 | #include "sc_nbdefs.h" |
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| 19 | |
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[1] | 20 | namespace sc_core { |
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| 21 | |
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[52] | 22 | |
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[1] | 23 | // ---------------------------------------------------------------------------- |
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| 24 | // ENUM : sc_time_unit |
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| 25 | // |
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| 26 | // Enumeration of time units. |
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| 27 | // ---------------------------------------------------------------------------- |
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| 28 | |
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[52] | 29 | enum sc_time_unit { |
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[1] | 30 | SC_FS = 0, |
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| 31 | SC_PS, |
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| 32 | SC_NS, |
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| 33 | SC_US, |
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| 34 | SC_MS, |
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| 35 | SC_SEC |
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| 36 | }; |
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| 37 | |
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[52] | 38 | |
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[1] | 39 | class sc_time; |
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| 40 | extern const sc_time SC_ZERO_TIME; |
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| 41 | extern sc_time SC_CURRENT_TIME; |
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| 42 | |
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[59] | 43 | extern uint64 nb_cycles; |
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[63] | 44 | #ifdef _OPENMP |
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[60] | 45 | #pragma omp threadprivate(nb_cycles) |
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[62] | 46 | #endif |
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[1] | 47 | |
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[52] | 48 | inline double sc_simulation_time() { |
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| 49 | // in default time units |
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| 50 | return (double) nb_cycles; |
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[1] | 51 | } |
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| 52 | |
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| 53 | |
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[52] | 54 | const sc_time & sc_time_stamp(); |
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| 55 | |
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| 56 | |
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| 57 | |
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| 58 | class sc_time { |
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| 59 | |
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| 60 | friend const sc_time & sc_time_stamp(); |
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[59] | 61 | uint64 time; |
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[52] | 62 | enum sc_time_unit unit; |
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| 63 | |
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| 64 | public: |
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| 65 | sc_time(double val, sc_time_unit tu); |
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| 66 | sc_time(const sc_time & = SC_ZERO_TIME); |
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| 67 | |
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| 68 | sc_time & operator= (const sc_time &); |
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| 69 | |
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[59] | 70 | uint64 value() const { |
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[52] | 71 | return time; |
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| 72 | } |
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| 73 | |
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| 74 | inline double to_double() const; |
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| 75 | inline double to_seconds() const; |
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| 76 | inline operator double() const { |
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| 77 | return to_double(); |
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| 78 | } |
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| 79 | |
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| 80 | const std::string to_string() const; |
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| 81 | |
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[1] | 82 | }; |
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| 83 | |
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[52] | 84 | |
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| 85 | inline const sc_time & sc_time_stamp() { |
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| 86 | // in default time units |
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| 87 | SC_CURRENT_TIME.time = nb_cycles; |
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| 88 | return SC_CURRENT_TIME; // = sc_time (nb_cycles, SC_NS); |
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[1] | 89 | } |
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| 90 | |
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[52] | 91 | |
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| 92 | double sc_time::to_double() const { |
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| 93 | double fact = 1; |
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| 94 | switch (unit) { |
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| 95 | case SC_FS: |
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| 96 | fact = 1e-6; |
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| 97 | break; |
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| 98 | case SC_PS: |
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| 99 | fact = 1e-3; |
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| 100 | break; |
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| 101 | case SC_NS: |
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| 102 | fact = 1; |
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| 103 | break; |
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| 104 | case SC_US: |
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| 105 | fact = 1e3; |
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| 106 | break; |
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| 107 | case SC_MS: |
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| 108 | fact = 1e6; |
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| 109 | break; |
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| 110 | case SC_SEC: |
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| 111 | fact = 1e9; |
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| 112 | break; |
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| 113 | } |
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| 114 | return (double) time * fact; |
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[4] | 115 | } |
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| 116 | |
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[52] | 117 | |
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| 118 | double sc_time::to_seconds() const { |
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| 119 | double fact = 1; |
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| 120 | switch (unit) { |
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| 121 | case SC_FS: |
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| 122 | fact = 1e-15; |
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| 123 | break; |
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| 124 | case SC_PS: |
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| 125 | fact = 1e-12; |
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| 126 | break; |
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| 127 | case SC_NS: |
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| 128 | fact = 1e-9; |
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| 129 | break; |
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| 130 | case SC_US: |
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| 131 | fact = 1e-6; |
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| 132 | break; |
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| 133 | case SC_MS: |
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| 134 | fact = 1e-3; |
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| 135 | break; |
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| 136 | case SC_SEC: |
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| 137 | fact = 1; |
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| 138 | break; |
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| 139 | } |
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| 140 | return (double) time * fact; |
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[4] | 141 | } |
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| 142 | |
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[52] | 143 | |
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[1] | 144 | } // end of namespace sc_core |
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| 145 | |
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[52] | 146 | |
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[1] | 147 | #endif /* __SC_TIME_H__ */ |
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[52] | 148 | |
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| 149 | /* |
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| 150 | # Local Variables: |
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| 151 | # tab-width: 4; |
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| 152 | # c-basic-offset: 4; |
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| 153 | # c-file-offsets:((innamespace . 0)(inline-open . 0)); |
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| 154 | # indent-tabs-mode: nil; |
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| 155 | # End: |
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| 156 | # |
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| 157 | # vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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| 158 | */ |
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| 159 | |
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