[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_port_ext.h | |
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| 6 | | | |
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| 7 | | Author : Buchmann Richard | |
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| 8 | | Taktak Sami | |
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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 __SC_PORT_EXT_H__ |
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| 14 | #define __SC_PORT_EXT_H__ |
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| 15 | |
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| 16 | // Define registers writing method |
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| 17 | #include<iostream> |
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| 18 | #include"sc_fwd.h" |
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| 19 | #include"sc_nbdefs.h" |
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| 20 | //#include"sc_event_finder.h" |
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| 21 | #include"sc_event.h" |
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| 22 | #include"sc_object.h" |
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| 23 | #include"sc_interface.h" |
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| 24 | #include"internal_ext.h" |
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| 25 | #include"port_dependency_ext.h" |
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| 26 | #include"fsm_rules.h" |
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| 27 | |
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| 28 | |
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| 29 | //__GNUC__ |
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| 30 | //__GNUC_MINOR__ |
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| 31 | //__GNUC_PATCHLEVEL__ |
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| 32 | // |
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| 33 | #if ((__GNUC__ < 3) || (__GNUC_MINOR__ < 4)) |
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| 34 | #define INLINE __attribute__((always_inline)) |
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| 35 | #else |
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| 36 | /* gcc3.4 doesn't support */ |
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| 37 | #define INLINE |
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| 38 | #endif |
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| 39 | |
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| 40 | #include <list> |
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| 41 | |
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| 42 | // |
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| 43 | namespace sc_core { |
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| 44 | // |
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| 45 | const char *get_name (const tab_t *pointer); |
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| 46 | |
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| 47 | #define READ_SIGNAL(value_type_,pointer_) \ |
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| 48 | ((value_type_&) (*((value_type_*) (pointer_)))) |
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| 49 | |
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| 50 | ///////////////////// DEPRECATED |
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| 51 | // C ANSI-only since it is needed to link with extern "C" |
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| 52 | // this declaration is not in casc.h since the CHECK_FSM_RULES macro |
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| 53 | // is not defined. |
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| 54 | |
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| 55 | extern void bind (sc_port_base&,sc_port_base&); |
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| 56 | extern void bind (sc_port_base&,sc_signal_base&); |
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| 57 | extern void bind (sc_signal_base &x); |
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| 58 | extern void bind (sc_port_base &x); |
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| 59 | |
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| 60 | // KIND STRING |
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| 61 | extern const char * const sc_inout_string; |
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| 62 | extern const char * const sc_in_string; |
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| 63 | extern const char * const sc_out_string; |
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| 64 | |
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| 65 | extern "C" void update (void); |
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| 66 | |
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| 67 | class sc_port_base : public sc_object, public sc_interface |
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| 68 | { |
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| 69 | protected: |
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| 70 | typedef sc_port_base base_type; |
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| 71 | public: |
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| 72 | /////////// |
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| 73 | // Internal |
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| 74 | const sc_module &get_module () const; |
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| 75 | void init (); |
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| 76 | void check_multiwriting2port () const; |
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| 77 | /////////// |
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| 78 | |
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| 79 | friend std::ostream& operator << (std::ostream &, const sc_port_base &); |
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| 80 | |
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| 81 | // LRM |
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| 82 | //virtual const sc_event /*&*/ default_event () const; |
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| 83 | static const char* const kind_string; |
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| 84 | // virtual const char *kind () const; |
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| 85 | // |
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| 86 | sc_port_base(); |
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| 87 | sc_port_base(const char* name_); |
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| 88 | explicit sc_port_base(const sc_port_base& parent_); |
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| 89 | /*virtual */~sc_port_base () {}; |
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| 90 | // bind to a handle |
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| 91 | void operator () (method_process_t &func) const; |
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| 92 | }; |
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| 93 | |
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| 94 | template < typename T > class sc_port_b:public sc_port_base |
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| 95 | { |
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| 96 | }; |
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| 97 | |
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| 98 | // ---------------------------------------------------------------------------- |
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| 99 | // CLASS : sc_in<T> |
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| 100 | // |
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| 101 | // ---------------------------------------------------------------------------- |
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| 102 | |
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| 103 | template <typename T> |
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| 104 | class sc_in : public sc_port_base |
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| 105 | { |
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| 106 | private: |
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| 107 | typedef T data_type; |
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| 108 | typedef sc_port_base base_type; |
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| 109 | typedef sc_in<data_type> this_type; |
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| 110 | typedef sc_signal<data_type> signal_type; |
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| 111 | |
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| 112 | /////////// |
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| 113 | // Internal |
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| 114 | void init (); |
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| 115 | /* |
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| 116 | public: virtual size_t data_size () const |
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| 117 | { return sizeof (data_type); } |
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| 118 | */ |
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| 119 | /////////// |
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| 120 | public: |
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| 121 | // constructors |
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| 122 | sc_in(): base_type() { init (); } |
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| 123 | |
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| 124 | explicit sc_in(const char* name_): base_type(name_) { init (); } |
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| 125 | |
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| 126 | explicit sc_in(const base_type& parent_ ): base_type( parent_ ) { init (); } |
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| 127 | |
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| 128 | /* |
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| 129 | // LRM error ! |
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| 130 | //static const char *const kind_string; this is a template ! |
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| 131 | */ |
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| 132 | // virtual const char *kind () const |
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| 133 | // { return "sc_in"; }; |
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| 134 | |
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| 135 | #if 0 |
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| 136 | // LRM |
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| 137 | sc_event_finder& neg () const { return *new sc_event_finder (*(sc_port_base*)this);}; |
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| 138 | sc_event_finder& pos () const { return *new sc_event_finder (*(sc_port_base*)this);}; |
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| 139 | #endif |
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| 140 | |
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| 141 | sc_event neg () const { return sc_event (*this, sc_event::NEG);}; |
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| 142 | sc_event pos () const { return sc_event (*this, sc_event::POS);}; |
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| 143 | // read the current value |
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| 144 | inline const T& read() const INLINE; |
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| 145 | inline operator const T& () const INLINE; |
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| 146 | |
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| 147 | // operateur == |
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| 148 | inline bool operator == (const T& v) INLINE; |
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| 149 | |
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| 150 | // bind to in interface |
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| 151 | void operator () (sc_signal<data_type> &s) |
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| 152 | { sc_core::bind (*this,s); } |
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| 153 | |
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| 154 | // binding for hierarchical description |
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| 155 | void operator () (this_type &parent_) |
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| 156 | { sc_core::bind (*this,parent_); } |
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| 157 | |
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| 158 | void operator () (sc_out<data_type> &o) |
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| 159 | { sc_core::bind (*this,o); } |
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| 160 | |
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| 161 | /*virtual */~sc_in() {}; |
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| 162 | |
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| 163 | }; |
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| 164 | |
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| 165 | template <typename T> |
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| 166 | void |
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| 167 | sc_in<T>::init() |
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| 168 | { |
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| 169 | set_kind (sc_in_string); |
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| 170 | sc_interface::init (sizeof (data_type)); |
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| 171 | } |
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| 172 | |
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| 173 | // read |
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| 174 | template <typename T> inline |
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| 175 | const T& |
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| 176 | sc_in<T>::read() const |
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| 177 | { |
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| 178 | #ifdef DUMP_READ |
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| 179 | std::cerr << "read " << READ_SIGNAL(const T&, get_pointer()) |
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| 180 | << " on signal " << name () << "\n"; |
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| 181 | #endif |
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| 182 | #ifdef CHECK_FSM_RULES |
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| 183 | if (casc_fsm_step == GEN_MOORE) { |
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| 184 | std::cerr << "FSM rules error : trying to read on input port '" |
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| 185 | << name () |
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| 186 | << "' from " << get_step_name () << " function.\n"; |
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| 187 | exit (-1); |
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| 188 | } |
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| 189 | #endif |
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| 190 | return READ_SIGNAL(const T, get_pointer()); |
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| 191 | } |
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| 192 | |
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| 193 | template <typename T> inline |
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| 194 | sc_in<T>::operator const T& () const |
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| 195 | { return sc_in<T>::read (); } |
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| 196 | |
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| 197 | template <typename T> inline |
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| 198 | bool sc_in<T>::operator == (const T& v) { |
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| 199 | return sc_in<T>::read() == v; |
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| 200 | } |
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| 201 | |
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| 202 | // ---------------------------------------------------------------------------- |
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| 203 | // CLASS : sc_inout<T> |
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| 204 | // |
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| 205 | // ---------------------------------------------------------------------------- |
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| 206 | |
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| 207 | template <typename T> |
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| 208 | class sc_inout : public sc_port_base |
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| 209 | { |
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| 210 | /////////// |
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| 211 | // Internal |
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| 212 | protected: |
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| 213 | void init (); |
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| 214 | T val; |
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| 215 | private: |
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| 216 | typedef T data_type; |
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| 217 | |
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| 218 | typedef sc_inout<data_type> this_type; |
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| 219 | typedef sc_signal<data_type> signal_type; |
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| 220 | |
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| 221 | /* |
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| 222 | public: virtual size_t data_size () const |
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| 223 | { return sizeof (data_type); } |
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| 224 | */ |
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| 225 | /////////// |
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| 226 | public: |
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| 227 | // contructeurs |
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| 228 | sc_inout(): base_type() { init (); }; |
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| 229 | |
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| 230 | explicit sc_inout(const char* name_): base_type(name_) { init (); }; |
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| 231 | |
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| 232 | /* |
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| 233 | // LRM error ! |
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| 234 | //static const char *const kind_string; this is a template ! |
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| 235 | */ |
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| 236 | //virtual const char *kind () const |
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| 237 | //{ return "sc_inout"; }; |
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| 238 | |
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| 239 | // read the current value |
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| 240 | inline const T& read() const INLINE; |
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| 241 | // write the new value |
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| 242 | inline void write( const T& ) INLINE; |
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| 243 | template <int W> inline void write( const sc_uint<W>& v) |
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| 244 | { sc_inout<T>::write (v.read()); } |
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| 245 | |
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| 246 | inline operator const T& () const INLINE; |
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| 247 | |
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| 248 | inline sc_inout<T>& operator = ( const T& a ) INLINE; |
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| 249 | |
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| 250 | inline sc_inout<T>& operator = ( const sc_signal<T>& a ) INLINE; |
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| 251 | |
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| 252 | // inline sc_inout<T>& operator = ( const sc_port_base& a ) INLINE; |
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| 253 | |
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| 254 | // operateur == |
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| 255 | inline bool operator == (const bool& v) INLINE; |
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| 256 | |
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| 257 | // bind to in interface |
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| 258 | void operator () (sc_signal<data_type> &s) |
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| 259 | { bind (*this); bind (*this,s); } |
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| 260 | |
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| 261 | void operator () (this_type &parent_) |
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| 262 | { bind (*this,parent_); } |
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| 263 | |
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| 264 | /*virtual */~sc_inout() {}; |
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| 265 | }; |
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| 266 | |
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| 267 | template <typename T> |
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| 268 | void |
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| 269 | sc_inout<T>::init () |
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| 270 | { |
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| 271 | set_pointer ((tab_t*)&val); |
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| 272 | sc_object::set_kind (sc_inout_string); |
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| 273 | sc_interface::init (sizeof (data_type)); |
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| 274 | /*ref*/ val = (0); |
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| 275 | //sc_inout::write (0); |
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| 276 | /* Fix : |
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| 277 | * FSM checker generates an error at runtime |
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| 278 | */ |
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| 279 | |
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| 280 | } |
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| 281 | |
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| 282 | // read |
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| 283 | template <typename T> |
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| 284 | inline |
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| 285 | const T& |
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| 286 | sc_inout<T>::read() const |
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| 287 | { |
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| 288 | #ifdef DUMP_READ |
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| 289 | std::cerr << "read " << READ_SIGNAL(const T, get_pointer()) // val |
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| 290 | << " on signal " << name () << "\n"; |
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| 291 | #endif |
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| 292 | #ifdef CHECK_FSM_RULES |
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| 293 | if (casc_fsm_step == GEN_MOORE) { |
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| 294 | std::cerr << "FSM rules error : trying to read on input/output port " |
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| 295 | << name () //get_name (get_pointer()) |
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| 296 | << " from " << get_step_name () << " function.\n"; |
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| 297 | exit (-1); |
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| 298 | } |
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| 299 | #endif |
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| 300 | // return val; |
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| 301 | return READ_SIGNAL(const T, get_pointer()); |
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| 302 | } |
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| 303 | |
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| 304 | // write the new value |
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| 305 | template <typename T> |
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| 306 | inline |
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| 307 | void |
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| 308 | sc_inout<T>::write( const T& value_ ) |
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| 309 | { |
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| 310 | #ifdef DUMP_WRITE |
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| 311 | std::cerr << "write " << value_ |
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| 312 | << " on in/out port (writing into a signal) '" << name () << "'\n"; |
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| 313 | #endif |
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| 314 | #ifdef CHECK_FSM_RULES |
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| 315 | if ((casc_fsm_step != GEN_MOORE) && ( casc_fsm_step != GEN_MEALY)) { |
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| 316 | std::cerr << "FSM rules error : trying to write on output port " |
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| 317 | << name () |
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| 318 | << " from an " << get_step_name () << " function.\n"; |
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| 319 | exit (-1); |
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| 320 | } |
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| 321 | #endif |
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| 322 | // T& ref = *(T*)(get_pointer()); |
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| 323 | #if defined(CHECK_MULTIWRITING2PORT) |
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| 324 | check_multiwriting2port (); |
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| 325 | #endif |
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| 326 | #ifndef USE_PORT_DEPENDENCY |
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| 327 | unstable |= (value_) != val; //ref; |
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| 328 | #endif |
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| 329 | /*ref*/ val = (value_); |
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| 330 | } |
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| 331 | |
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| 332 | template <typename T> |
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| 333 | inline |
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| 334 | sc_inout<T>::operator const T& () const |
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| 335 | { return sc_inout<T>::read(); } |
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| 336 | |
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| 337 | template <typename T> |
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| 338 | inline sc_inout<T>& sc_inout<T>::operator = ( const T& a ) |
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| 339 | { sc_inout<T>::write( a ); return *this; } |
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| 340 | |
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| 341 | template <typename T> |
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| 342 | inline |
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| 343 | sc_inout<T>& sc_inout<T>::operator = ( const sc_signal<T>& a ) |
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| 344 | { sc_inout<T>::write( a.read() ); return *this; } |
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| 345 | /* |
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| 346 | template <typename T> |
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| 347 | inline |
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| 348 | sc_inout<T>& sc_inout<T>::operator = ( const sc_port_base& a ) |
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| 349 | { write( a.read() ); return *this; } |
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| 350 | */ |
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| 351 | template <typename T> |
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| 352 | inline |
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| 353 | bool sc_inout<T>::operator == (const bool& v) |
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| 354 | { return sc_inout<T>::read() == v; } |
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| 355 | |
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| 356 | // ---------------------------------------------------------------------------- |
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| 357 | // CLASS : sc_out<T> |
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| 358 | // |
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| 359 | // ---------------------------------------------------------------------------- |
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| 360 | // Official SystemC implementation notes : |
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| 361 | // "sc_out can also read from its port, hence no difference with sc_inout. |
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| 362 | // For debugging reasons, a class is provided instead of a define." |
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| 363 | |
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| 364 | template <typename T> |
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| 365 | class sc_out : public sc_inout<T> |
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| 366 | { |
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| 367 | /////////// |
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| 368 | // Internal |
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| 369 | void init (); |
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| 370 | /////////// |
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| 371 | public: |
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| 372 | // typedefs |
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| 373 | typedef T data_type; |
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| 374 | typedef sc_inout<T> base_type; |
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| 375 | typedef sc_out<data_type> this_type; |
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| 376 | typedef sc_signal<data_type> signal_type; |
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| 377 | public: |
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| 378 | // constructors & destructor |
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| 379 | sc_out(): base_type() { init (); }; |
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| 380 | explicit sc_out(const char* name_): base_type(name_) { init (); }; |
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| 381 | sc_out (this_type & parent_); |
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| 382 | sc_out (const char *name_, this_type & parent_); |
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| 383 | |
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| 384 | /* |
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| 385 | // LRM error ! |
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| 386 | //static const char *const kind_string; this is a template ! |
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| 387 | */ |
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| 388 | //virtual const char *kind () const |
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| 389 | //{ return "sc_out"; }; |
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| 390 | |
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| 391 | |
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| 392 | inline this_type& operator = ( const data_type& a ) INLINE; |
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| 393 | inline bool operator == (const bool& v) INLINE; |
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| 394 | |
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| 395 | // bind to in interface |
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| 396 | void operator () (sc_signal<data_type> &s) |
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| 397 | { bind (*this,s); } |
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| 398 | |
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| 399 | void operator () (this_type &parent_) |
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| 400 | { bind (*this,parent_); } |
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| 401 | |
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| 402 | ////////////////////// |
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| 403 | // Systemcass specific |
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| 404 | void operator () (sc_port_base &o) |
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| 405 | { set_port_dependency (&o, (sc_port_base&)(*this)); } |
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| 406 | /* |
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| 407 | void operator () () // n'a pas de sens... |
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| 408 | { set_port_dependency (NULL, (sc_port_base&)(*this)); } |
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| 409 | */ |
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| 410 | ////////////////////// |
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| 411 | |
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| 412 | |
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| 413 | /*virtual */~ sc_out () {}; |
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| 414 | |
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| 415 | private: |
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| 416 | // disabled |
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| 417 | sc_out (const this_type &); |
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| 418 | }; |
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| 419 | |
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| 420 | // |
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| 421 | template<typename T> |
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| 422 | void |
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| 423 | sc_out<T>::init () |
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| 424 | { |
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| 425 | sc_inout<T>::init (); |
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| 426 | // tab_t *t = &(sc_inout<T>::val); |
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| 427 | // sc_interface::set_pointer (t); |
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| 428 | sc_object::set_kind (sc_out_string); |
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| 429 | // sc_interface::init (sizeof (data_type)); |
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| 430 | // /*ref*/ sc_inout<T>::val = 0; |
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| 431 | //sc_inout<T>::write (0); |
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| 432 | /* Fix : |
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| 433 | * FSM checker generates an error at runtime |
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| 434 | */ |
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| 435 | } |
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| 436 | |
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| 437 | template<typename T> inline |
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| 438 | sc_out<T>& |
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| 439 | sc_out<T>::operator = ( const data_type& a ) |
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| 440 | { sc_out<T>::write( a ); return *this; } |
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| 441 | |
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| 442 | template<typename T> inline |
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| 443 | bool |
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| 444 | sc_out<T>::operator == (const bool& v) |
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| 445 | { return sc_out<T>::read() == v; } |
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| 446 | |
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| 447 | // Dumps |
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| 448 | template<typename T> inline |
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| 449 | std::ostream& operator<<( std::ostream& os, const sc_in<T> &r) |
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| 450 | { return os << r.read (); } |
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| 451 | |
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| 452 | // Add '&' |
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| 453 | template<class T> inline |
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| 454 | std::ostream& operator<<( std::ostream& os, const sc_inout<T> &r) |
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| 455 | { return os << r.read (); } |
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| 456 | |
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| 457 | template<class T> inline |
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| 458 | std::ostream& operator<<( std::ostream& os, const sc_signal<T> &r) |
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| 459 | { return os << r.read (); } |
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| 460 | |
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| 461 | // Declarations |
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| 462 | typedef sc_in<bool> sc_in_clk; |
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| 463 | |
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| 464 | #undef INLINE |
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| 465 | |
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| 466 | #undef READ_SIGNAL |
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| 467 | |
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| 468 | } // end of sc_core namespace |
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| 469 | |
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| 470 | using sc_core::sc_in_clk; |
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| 471 | |
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| 472 | #endif /* __SC_PORT_EXT_H__ */ |
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