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