| 1 | /*------------------------------------------------------------\ |
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| 2 | | | |
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| 3 | | Tool : systemcass | |
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| 4 | | | |
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| 5 | | File : gen_code.h | |
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| 6 | | | |
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| 7 | | Author : Taktak Sami | |
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| 8 | | Buchmann Richard | |
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| 9 | | | |
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| 10 | | Date : 09_07_2004 | |
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| 11 | | | |
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| 12 | \------------------------------------------------------------*/ |
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| 13 | #ifndef __GEN_CODE_H__ |
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| 14 | #define __GEN_CODE_H__ |
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| 15 | |
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| 16 | #include"internal.h" |
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| 17 | #include"global_functions.h" |
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| 18 | #include"graph.h" |
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| 19 | #include"sc_port.h" |
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| 20 | #include"sc_trace.h" |
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| 21 | #include"process_dependency.h" |
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| 22 | |
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| 23 | //------------------------------------------------------------------- |
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| 24 | #ifdef __GNUC__ |
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| 25 | #define INLINE __attribute__((always_inline)) |
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| 26 | #else |
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| 27 | #define INLINE |
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| 28 | #endif |
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| 29 | |
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| 30 | //------------------------------------------------------------------- |
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| 31 | namespace sc_core { |
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| 32 | |
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| 33 | extern strong_component_list_t *strong; |
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| 34 | |
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| 35 | /* compile scheduling code to link dynamically later */ |
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| 36 | extern void compile_code(const char *base_name, const char *cflags2 = ""); |
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| 37 | |
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| 38 | /* generate a scheduling code */ |
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| 39 | extern void gen_scheduling_code_for_quasistatic_func( |
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| 40 | method_process_list_t &transition_list, |
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| 41 | method_process_list_t &moore_list, |
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| 42 | strong_component_list_t &mealy_list); |
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| 43 | extern void gen_scheduling_code_for_static_func( |
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| 44 | method_process_list_t &transition_list, |
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| 45 | method_process_list_t &moore_list, |
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| 46 | ProcessDependencyList &mealy_list); |
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| 47 | extern char *gen_scheduling_code_for_dynamic_link( |
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| 48 | method_process_list_t &transition_list, |
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| 49 | method_process_list_t &moore_list, |
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| 50 | ProcessDependencyList &mealy_list); |
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| 51 | extern char *gen_scheduling_code_for_dynamic_link( |
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| 52 | method_process_list_t &transition_list, |
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| 53 | method_process_list_t &moore_list, |
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| 54 | strong_component_list_t &strongcomponents); |
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| 55 | |
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| 56 | /* function when any dynamic link is impossible */ |
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| 57 | #ifdef __cplusplus |
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| 58 | #define EXTERN extern "C" |
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| 59 | #else |
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| 60 | #define EXTERN extern |
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| 61 | #endif |
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| 62 | |
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| 63 | EXTERN void static_simulate_1_cycle (); |
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| 64 | EXTERN void static_mealy_generation (); |
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| 65 | EXTERN void quasistatic_simulate_1_cycle (); |
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| 66 | EXTERN void quasistatic_mealy_generation (); |
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| 67 | |
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| 68 | /* internal functions */ |
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| 69 | inline void switch_to_moore () INLINE; |
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| 70 | inline void internal_sc_cycle2 () INLINE; |
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| 71 | inline void internal_sc_cycle1 (int number_of_cycles) INLINE; |
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| 72 | inline void internal_sc_cycle0( double duration ) INLINE; |
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| 73 | |
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| 74 | /* ***************** */ |
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| 75 | /* inlined functions */ |
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| 76 | /* ***************** */ |
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| 77 | |
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| 78 | inline void |
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| 79 | internal_sc_cycle2 () |
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| 80 | { |
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| 81 | #ifdef DUMP_STAGE |
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| 82 | std::cerr << "begin of cycle #" << sc_simulation_time () << "\n"; |
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| 83 | #endif |
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| 84 | func_simulate_1_cycle (); |
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| 85 | ++nb_cycles; |
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| 86 | #ifdef DUMP_STAGE |
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| 87 | std::cerr << "end of cycle\n"; |
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| 88 | #endif |
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| 89 | } |
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| 90 | |
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| 91 | inline void |
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| 92 | internal_sc_cycle1 (int number_of_cycles) |
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| 93 | { |
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| 94 | //while ((! have_to_stop) && (number_of_cycles != 0)) { |
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| 95 | while (!((have_to_stop) | (number_of_cycles == 0))) { |
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| 96 | trace_all (false); |
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| 97 | internal_sc_cycle2 (); |
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| 98 | trace_all (true); |
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| 99 | number_of_cycles = (number_of_cycles<0)?number_of_cycles:number_of_cycles-1; |
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| 100 | } |
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| 101 | } |
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| 102 | |
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| 103 | inline |
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| 104 | void |
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| 105 | internal_sc_cycle0( double duration ) // in default time units |
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| 106 | { |
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| 107 | #ifdef DEBUG |
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| 108 | // Check dynamic linkage |
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| 109 | if ((func_combinationals == NULL) || (func_simulate_1_cycle == NULL)) { |
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| 110 | std::cerr << "Main execution loop is not yet generated.\n"; |
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| 111 | } |
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| 112 | |
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| 113 | if (duration < -1) |
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| 114 | std::cerr << "Invalid duration.\n"; |
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| 115 | #endif |
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| 116 | |
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| 117 | if (is_posted_write ()) { |
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| 118 | // update posted value to external signals |
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| 119 | #if 0 |
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| 120 | std::cerr << "update\n"; |
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| 121 | #endif |
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| 122 | update (); |
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| 123 | #ifdef CHECK_FSM_RULES |
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| 124 | casc_fsm_step = GEN_MEALY; |
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| 125 | #endif |
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| 126 | func_combinationals (); |
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| 127 | } |
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| 128 | |
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| 129 | internal_sc_cycle1 ((int)duration); |
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| 130 | |
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| 131 | // don't need to do func_combinationals since 'unstable' flag is now false |
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| 132 | if (is_posted_write ()) { |
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| 133 | update (); |
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| 134 | #ifdef CHECK_FSM_RULES |
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| 135 | casc_fsm_step = GEN_MEALY; |
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| 136 | #endif |
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| 137 | func_combinationals (); |
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| 138 | } |
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| 139 | } |
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| 140 | |
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| 141 | //------------------------------------------------------------------- |
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| 142 | |
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| 143 | // sc_cycle is for internal purpose only. |
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| 144 | // sc_cycle is deprecated since 1.0 |
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| 145 | //extern void sc_cycle( double duration ); // in default time units |
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| 146 | |
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| 147 | /* time_unit is worth a cycle in every cases */ |
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| 148 | //extern void sc_cycle( double duration, sc_time_unit time_unit ); |
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| 149 | |
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| 150 | } // end of sc_core namespace |
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| 151 | |
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| 152 | #endif /* __GEN_CODE_H__ */ |
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