[82] | 1 | #ifdef SYSTEMC |
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| 2 | /* |
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| 3 | * $Id: Decod_queue_transition.cpp 82 2008-05-01 16:48:45Z rosiere $ |
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| 4 | * |
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| 5 | * [ Description ] |
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| 6 | * |
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| 7 | */ |
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| 8 | |
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| 9 | #include "Behavioural/Core/Multi_Front_end/Front_end/Decod_unit/Decod_queue/include/Decod_queue.h" |
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| 10 | |
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| 11 | namespace morpheo { |
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| 12 | namespace behavioural { |
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| 13 | namespace core { |
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| 14 | namespace multi_front_end { |
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| 15 | namespace front_end { |
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| 16 | namespace decod_unit { |
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| 17 | namespace decod_queue { |
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| 18 | |
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| 19 | |
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| 20 | #undef FUNCTION |
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| 21 | #define FUNCTION "Decod_queue::transition" |
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| 22 | void Decod_queue::transition (void) |
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| 23 | { |
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| 24 | log_begin(Decod_queue,FUNCTION); |
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| 25 | |
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| 26 | if (PORT_READ(in_NRESET) == 0) |
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| 27 | { |
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| 28 | reg_QUEUE->clear(); |
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| 29 | |
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| 30 | for (uint32_t i=0; i<_param->_nb_context; i++) |
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| 31 | reg_NB_INST [i]=0; |
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| 32 | } |
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| 33 | else |
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| 34 | { |
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| 35 | //-------------------------------------------------------------------- |
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| 36 | //-----[ DECOD_IN ]--------------------------------------------------- |
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| 37 | //-------------------------------------------------------------------- |
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| 38 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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| 39 | { |
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| 40 | decod_queue_entry_t * entry = NULL; |
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| 41 | if (PORT_READ(in_DECOD_IN_VAL [i]) and internal_DECOD_IN_ACK[i]) |
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| 42 | { |
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| 43 | log_printf(TRACE,Decod_queue,FUNCTION,_("DECOD_IN [%d]"),i); |
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| 44 | |
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| 45 | if (entry == NULL) |
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| 46 | entry = new decod_queue_entry_t (_param->_nb_inst_decod); |
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| 47 | |
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| 48 | Tcontext_t context = (_param->_have_port_context_id)?PORT_READ(in_DECOD_IN_CONTEXT_ID [i]):0; |
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| 49 | |
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| 50 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * context : %d"),context); |
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| 51 | |
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| 52 | entry->_val [i] = 1; |
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| 53 | entry->_context_id [i] = context; |
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| 54 | entry->_depth [i] = (_param->_have_port_depth)?PORT_READ(in_DECOD_IN_DEPTH [i]):0; |
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| 55 | entry->_type [i] = PORT_READ(in_DECOD_IN_TYPE [i]); |
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| 56 | entry->_operation [i] = PORT_READ(in_DECOD_IN_OPERATION [i]); |
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| 57 | entry->_is_delay_slot [i] = PORT_READ(in_DECOD_IN_IS_DELAY_SLOT [i]); |
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| 58 | entry->_address [i] = PORT_READ(in_DECOD_IN_ADDRESS [i]); |
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| 59 | entry->_has_immediat [i] = PORT_READ(in_DECOD_IN_HAS_IMMEDIAT [i]); |
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| 60 | entry->_immediat [i] = PORT_READ(in_DECOD_IN_IMMEDIAT [i]); |
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| 61 | entry->_read_ra [i] = PORT_READ(in_DECOD_IN_READ_RA [i]); |
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| 62 | entry->_num_reg_ra [i] = PORT_READ(in_DECOD_IN_NUM_REG_RA [i]); |
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| 63 | entry->_read_rb [i] = PORT_READ(in_DECOD_IN_READ_RB [i]); |
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| 64 | entry->_num_reg_rb [i] = PORT_READ(in_DECOD_IN_NUM_REG_RB [i]); |
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| 65 | entry->_read_rc [i] = PORT_READ(in_DECOD_IN_READ_RC [i]); |
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| 66 | entry->_num_reg_rc [i] = PORT_READ(in_DECOD_IN_NUM_REG_RC [i]); |
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| 67 | entry->_write_rd [i] = PORT_READ(in_DECOD_IN_WRITE_RD [i]); |
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| 68 | entry->_num_reg_rd [i] = PORT_READ(in_DECOD_IN_NUM_REG_RD [i]); |
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| 69 | entry->_write_re [i] = PORT_READ(in_DECOD_IN_WRITE_RE [i]); |
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| 70 | entry->_num_reg_re [i] = PORT_READ(in_DECOD_IN_NUM_REG_RE [i]); |
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| 71 | entry->_exception_use [i] = PORT_READ(in_DECOD_IN_EXCEPTION_USE [i]); |
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| 72 | |
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| 73 | reg_NB_INST [context] ++; |
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| 74 | reg_QUEUE->push_back(entry); |
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| 75 | |
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| 76 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * nb_inst : %d"),reg_NB_INST [context]); |
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| 77 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * PUSH queue")); |
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| 78 | |
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| 79 | } |
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| 80 | } |
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| 81 | |
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| 82 | //-------------------------------------------------------------------- |
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| 83 | //-----[ DECOD_OUT ]-------------------------------------------------- |
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| 84 | //-------------------------------------------------------------------- |
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| 85 | if (not reg_QUEUE->empty()) |
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| 86 | { |
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| 87 | bool find = false; |
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| 88 | |
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| 89 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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| 90 | { |
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| 91 | // Test transaction : if ok then invalid slot |
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| 92 | if (internal_DECOD_OUT_VAL [i] and internal_DECOD_OUT_ACK[i]) |
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| 93 | { |
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| 94 | log_printf(TRACE,Decod_queue,FUNCTION,_("DECOD_OUT [%d]"),i); |
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| 95 | |
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| 96 | reg_QUEUE->front()->_val [i] = 0; |
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| 97 | |
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| 98 | Tcontext_t context = reg_QUEUE->front()->_context_id [i]; |
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| 99 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * context : %d"),context); |
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| 100 | |
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| 101 | reg_NB_INST [context] --; |
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| 102 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * nb_inst : %d"),reg_NB_INST [context]); |
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| 103 | } |
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| 104 | // Test if slot is (again) valid, if yes, then have less one instruction in the entry |
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| 105 | find |= reg_QUEUE->front()->_val [i]; |
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| 106 | } |
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| 107 | |
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| 108 | // test if can free the entry |
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| 109 | if (not find) // no valid instruction in current slot |
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| 110 | { |
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| 111 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * POP queue")); |
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| 112 | |
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| 113 | // can pop the slot |
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| 114 | delete reg_QUEUE->front(); |
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| 115 | reg_QUEUE->pop_front(); |
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| 116 | } |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | #ifdef STATISTICS |
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| 121 | for (uint32_t i=0; i<_param->_nb_context; i++) |
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| 122 | *(_stat_nb_inst [i]) += reg_NB_INST [i]; |
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| 123 | #endif |
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| 124 | |
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| 125 | #if defined(STATISTICS) or defined(VHDL_TESTBENCH) |
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| 126 | end_cycle (); |
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| 127 | #endif |
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| 128 | |
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| 129 | log_end(Decod_queue,FUNCTION); |
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| 130 | }; |
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| 131 | |
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| 132 | }; // end namespace decod_queue |
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| 133 | }; // end namespace decod_unit |
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| 134 | }; // end namespace front_end |
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| 135 | }; // end namespace multi_front_end |
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| 136 | }; // end namespace core |
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| 137 | |
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| 138 | }; // end namespace behavioural |
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| 139 | }; // end namespace morpheo |
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| 140 | #endif |
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