1 | #ifdef VHDL |
---|
2 | /* |
---|
3 | * $Id: Meta_Predictor_Glue_vhdl_body.cpp 81 2008-04-15 18:40:01Z rosiere $ |
---|
4 | * |
---|
5 | * [ Description ] |
---|
6 | * |
---|
7 | */ |
---|
8 | |
---|
9 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/Meta_Predictor/Meta_Predictor_Glue/include/Meta_Predictor_Glue.h" |
---|
10 | |
---|
11 | namespace morpheo { |
---|
12 | namespace behavioural { |
---|
13 | namespace core { |
---|
14 | namespace multi_front_end { |
---|
15 | namespace front_end { |
---|
16 | namespace prediction_unit { |
---|
17 | namespace direction { |
---|
18 | |
---|
19 | namespace meta_predictor { |
---|
20 | namespace meta_predictor_glue { |
---|
21 | |
---|
22 | |
---|
23 | void Meta_Predictor_Glue::vhdl_body (Vhdl * & vhdl) |
---|
24 | { |
---|
25 | log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","Begin"); |
---|
26 | vhdl->set_body (""); |
---|
27 | vhdl->set_body (" -- predict"); |
---|
28 | |
---|
29 | for (uint32_t i=0; i<_param._nb_prediction; i++) |
---|
30 | { |
---|
31 | string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_PREDICT_"+toString(i)+"_PREDICTOR_0_ACK and in_PREDICT_"+toString(i)+"_PREDICTOR_1_ACK"):"'1'"; |
---|
32 | |
---|
33 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_ACK <= "+meta_predictor_ack+" and "+"in_PREDICT_"+toString(i)+"_PREDICTOR_2_ACK;"); |
---|
34 | |
---|
35 | uint32_t index=_param._size_history; |
---|
36 | |
---|
37 | |
---|
38 | if (_param._predictor_2_have_pht) |
---|
39 | { |
---|
40 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_2_PHT_HISTORY;"); |
---|
41 | index-= _param._predictor_2_pht_size_counter; |
---|
42 | } |
---|
43 | if (_param._predictor_2_have_bht) |
---|
44 | { |
---|
45 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_2_BHT_HISTORY;"); |
---|
46 | index-= _param._predictor_2_bht_size_shifter; |
---|
47 | } |
---|
48 | |
---|
49 | if (_param._have_meta_predictor) |
---|
50 | { |
---|
51 | if (_param._predictor_1_have_pht) |
---|
52 | { |
---|
53 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_1_PHT_HISTORY;"); |
---|
54 | index-= _param._predictor_1_pht_size_counter; |
---|
55 | } |
---|
56 | if (_param._predictor_1_have_bht) |
---|
57 | { |
---|
58 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_1_BHT_HISTORY;"); |
---|
59 | index-= _param._predictor_1_bht_size_shifter; |
---|
60 | } |
---|
61 | |
---|
62 | if (_param._predictor_0_have_pht) |
---|
63 | { |
---|
64 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_0_PHT_HISTORY;"); |
---|
65 | index-= _param._predictor_0_pht_size_counter; |
---|
66 | } |
---|
67 | if (_param._predictor_0_have_bht) |
---|
68 | { |
---|
69 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+" <= in_PREDICT_"+toString(i)+"_PREDICTOR_0_BHT_HISTORY;"); |
---|
70 | index-= _param._predictor_0_bht_size_shifter; |
---|
71 | } |
---|
72 | } |
---|
73 | |
---|
74 | // direction of prediction |
---|
75 | vhdl->set_body (""); |
---|
76 | if (_param._have_meta_predictor) |
---|
77 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_DIRECTION <= predict_"+toString(i)+"_predictor_0_direction when predict_"+toString(i)+"_predictor_2_direction='0' else predict_"+toString(i)+"_predictor_1_direction;"); |
---|
78 | else |
---|
79 | vhdl->set_body ("out_PREDICT_"+toString(i)+"_DIRECTION <= predict_"+toString(i)+"_predictor_2_direction;"); |
---|
80 | } |
---|
81 | |
---|
82 | // Interface - branch_complete |
---|
83 | |
---|
84 | vhdl->set_body (""); |
---|
85 | vhdl->set_body (" -- branch_complete"); |
---|
86 | for (uint32_t i=0; i<_param._nb_branch_complete; i++) |
---|
87 | { |
---|
88 | // branch_complete_predictor_2 val and directionn |
---|
89 | if (_param._have_meta_predictor) |
---|
90 | { |
---|
91 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_2_VAL <= (branch_complete_"+toString(i)+"_predictor_0_direction xor branch_complete_"+toString(i)+"_predictor_1_direction) and "+"in_BRANCH_COMPLETE_"+toString(i)+"_VAL;"); |
---|
92 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_2_DIRECTION <= (branch_complete_"+toString(i)+"_predictor_0_direction and not in_BRANCH_COMPLETE_"+toString(i)+"_DIRECTION) or (branch_complete_"+toString(i)+"_predictor_1_direction and in_BRANCH_COMPLETE_"+toString(i)+"_DIRECTION);"); |
---|
93 | } |
---|
94 | |
---|
95 | string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_0_ACK and in_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_1_ACK"):"'1'"; |
---|
96 | |
---|
97 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_ACK <= "+meta_predictor_ack+" and "+"in_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_2_ACK;"); |
---|
98 | |
---|
99 | uint32_t index=_param._size_history; |
---|
100 | |
---|
101 | if (_param._predictor_2_have_pht) |
---|
102 | { |
---|
103 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_2_PHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+";"); |
---|
104 | index-= _param._predictor_2_pht_size_counter; |
---|
105 | } |
---|
106 | if (_param._predictor_2_have_bht) |
---|
107 | { |
---|
108 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_2_BHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+";"); |
---|
109 | index-= _param._predictor_2_bht_size_shifter; |
---|
110 | } |
---|
111 | |
---|
112 | if (_param._have_meta_predictor) |
---|
113 | { |
---|
114 | if (_param._predictor_1_have_pht) |
---|
115 | { |
---|
116 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_1_PHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+";"); |
---|
117 | index-= _param._predictor_1_pht_size_counter; |
---|
118 | } |
---|
119 | if (_param._predictor_1_have_bht) |
---|
120 | { |
---|
121 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_1_BHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+";"); |
---|
122 | index-= _param._predictor_1_bht_size_shifter; |
---|
123 | } |
---|
124 | |
---|
125 | if (_param._predictor_0_have_pht) |
---|
126 | { |
---|
127 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_0_PHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+";"); |
---|
128 | index-= _param._predictor_0_pht_size_counter; |
---|
129 | } |
---|
130 | if (_param._predictor_0_have_bht) |
---|
131 | { |
---|
132 | vhdl->set_body ("out_BRANCH_COMPLETE_"+toString(i)+"_PREDICTOR_0_BHT_HISTORY <= in_BRANCH_COMPLETE_"+toString(i)+"_HISTORY"+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+";"); |
---|
133 | index-= _param._predictor_0_bht_size_shifter; |
---|
134 | } |
---|
135 | } |
---|
136 | } |
---|
137 | |
---|
138 | log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","End"); |
---|
139 | }; |
---|
140 | |
---|
141 | }; // end namespace meta_predictor_glue |
---|
142 | }; // end namespace meta_predictor |
---|
143 | |
---|
144 | }; // end namespace core |
---|
145 | }; // end namespace multi_front_end |
---|
146 | }; // end namespace front_end |
---|
147 | }; // end namespace prediction_unit |
---|
148 | }; // end namespace direction |
---|
149 | |
---|
150 | |
---|
151 | }; // end namespace behavioural |
---|
152 | }; // end namespace morpheo |
---|
153 | #endif |
---|