1 | #ifdef VHDL |
---|
2 | /* |
---|
3 | * $Id$ |
---|
4 | * |
---|
5 | * [ Description ] |
---|
6 | * |
---|
7 | */ |
---|
8 | |
---|
9 | #include "Behavioural/Stage_1_Ifetch/Predictor/Meta_Predictor/Meta_Predictor_Glue/include/Meta_Predictor_Glue.h" |
---|
10 | |
---|
11 | namespace morpheo { |
---|
12 | namespace behavioural { |
---|
13 | namespace stage_1_ifetch { |
---|
14 | namespace predictor { |
---|
15 | namespace meta_predictor { |
---|
16 | namespace meta_predictor_glue { |
---|
17 | |
---|
18 | |
---|
19 | void Meta_Predictor_Glue::vhdl_body (Vhdl & vhdl) |
---|
20 | { |
---|
21 | log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","Begin"); |
---|
22 | vhdl.set_body (""); |
---|
23 | vhdl.set_body (" -- predict"); |
---|
24 | |
---|
25 | for (uint32_t i=0; i<_param._nb_prediction; i++) |
---|
26 | { |
---|
27 | string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_PREDICT_PREDICTOR_0_ACK_"+toString(i)+" and in_PREDICT_PREDICTOR_1_ACK_"+toString(i)):"'1'"; |
---|
28 | |
---|
29 | vhdl.set_body ("out_PREDICT_ACK_"+toString(i)+" <= "+meta_predictor_ack+" and "+"in_PREDICT_PREDICTOR_2_ACK_"+toString(i)+";"); |
---|
30 | |
---|
31 | uint32_t index=_param._size_history; |
---|
32 | |
---|
33 | |
---|
34 | if (_param._predictor_2_have_pht) |
---|
35 | { |
---|
36 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+" <= in_PREDICT_PREDICTOR_2_PHT_HISTORY_"+toString(i)+";"); |
---|
37 | index-= _param._predictor_2_pht_size_counter; |
---|
38 | } |
---|
39 | if (_param._predictor_2_have_bht) |
---|
40 | { |
---|
41 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_2_BHT_HISTORY_"+toString(i)+";"); |
---|
42 | index-= _param._predictor_2_bht_size_shifter; |
---|
43 | } |
---|
44 | |
---|
45 | if (_param._have_meta_predictor) |
---|
46 | { |
---|
47 | if (_param._predictor_1_have_pht) |
---|
48 | { |
---|
49 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+" <= in_PREDICT_PREDICTOR_1_PHT_HISTORY_"+toString(i)+";"); |
---|
50 | index-= _param._predictor_1_pht_size_counter; |
---|
51 | } |
---|
52 | if (_param._predictor_1_have_bht) |
---|
53 | { |
---|
54 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_1_BHT_HISTORY_"+toString(i)+";"); |
---|
55 | index-= _param._predictor_1_bht_size_shifter; |
---|
56 | } |
---|
57 | |
---|
58 | if (_param._predictor_0_have_pht) |
---|
59 | { |
---|
60 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+" <= in_PREDICT_PREDICTOR_0_PHT_HISTORY_"+toString(i)+";"); |
---|
61 | index-= _param._predictor_0_pht_size_counter; |
---|
62 | } |
---|
63 | if (_param._predictor_0_have_bht) |
---|
64 | { |
---|
65 | vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_0_BHT_HISTORY_"+toString(i)+";"); |
---|
66 | index-= _param._predictor_0_bht_size_shifter; |
---|
67 | } |
---|
68 | } |
---|
69 | |
---|
70 | // direction of prediction |
---|
71 | vhdl.set_body (""); |
---|
72 | if (_param._have_meta_predictor) |
---|
73 | vhdl.set_body ("out_PREDICT_DIRECTION_"+toString(i)+" <= predict_predictor_0_direction_"+toString(i)+" when predict_predictor_2_direction_"+toString(i)+"='0' else predict_predictor_1_direction_"+toString(i)+";"); |
---|
74 | else |
---|
75 | vhdl.set_body ("out_PREDICT_DIRECTION_"+toString(i)+" <= predict_predictor_2_direction_"+toString(i)+";"); |
---|
76 | } |
---|
77 | |
---|
78 | // Interface - branch_complete |
---|
79 | |
---|
80 | vhdl.set_body (""); |
---|
81 | vhdl.set_body (" -- branch_complete"); |
---|
82 | for (uint32_t i=0; i<_param._nb_branch_complete; i++) |
---|
83 | { |
---|
84 | // branch_complete_predictor_2 val and directionn |
---|
85 | if (_param._have_meta_predictor) |
---|
86 | { |
---|
87 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_VAL_"+toString(i)+" <= (branch_complete_predictor_0_direction_"+toString(i)+" xor branch_complete_predictor_1_direction_"+toString(i)+") and "+"in_BRANCH_COMPLETE_VAL_"+toString(i)+";"); |
---|
88 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_DIRECTION_"+toString(i)+" <= (branch_complete_predictor_0_direction_"+toString(i)+" and not in_BRANCH_COMPLETE_DIRECTION_"+toString(i)+") or (branch_complete_predictor_1_direction_"+toString(i)+" and in_BRANCH_COMPLETE_DIRECTION_"+toString(i)+");"); |
---|
89 | } |
---|
90 | |
---|
91 | string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_BRANCH_COMPLETE_PREDICTOR_0_ACK_"+toString(i)+" and in_BRANCH_COMPLETE_PREDICTOR_1_ACK_"+toString(i)):"'1'"; |
---|
92 | |
---|
93 | vhdl.set_body ("out_BRANCH_COMPLETE_ACK_"+toString(i)+" <= "+meta_predictor_ack+" and "+"in_BRANCH_COMPLETE_PREDICTOR_2_ACK_"+toString(i)+";"); |
---|
94 | |
---|
95 | uint32_t index=_param._size_history; |
---|
96 | |
---|
97 | if (_param._predictor_2_have_pht) |
---|
98 | { |
---|
99 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+";"); |
---|
100 | index-= _param._predictor_2_pht_size_counter; |
---|
101 | } |
---|
102 | if (_param._predictor_2_have_bht) |
---|
103 | { |
---|
104 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+";"); |
---|
105 | index-= _param._predictor_2_bht_size_shifter; |
---|
106 | } |
---|
107 | |
---|
108 | if (_param._have_meta_predictor) |
---|
109 | { |
---|
110 | if (_param._predictor_1_have_pht) |
---|
111 | { |
---|
112 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_1_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+";"); |
---|
113 | index-= _param._predictor_1_pht_size_counter; |
---|
114 | } |
---|
115 | if (_param._predictor_1_have_bht) |
---|
116 | { |
---|
117 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_1_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+";"); |
---|
118 | index-= _param._predictor_1_bht_size_shifter; |
---|
119 | } |
---|
120 | |
---|
121 | if (_param._predictor_0_have_pht) |
---|
122 | { |
---|
123 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_0_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+";"); |
---|
124 | index-= _param._predictor_0_pht_size_counter; |
---|
125 | } |
---|
126 | if (_param._predictor_0_have_bht) |
---|
127 | { |
---|
128 | vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_0_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+";"); |
---|
129 | index-= _param._predictor_0_bht_size_shifter; |
---|
130 | } |
---|
131 | } |
---|
132 | } |
---|
133 | |
---|
134 | log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","End"); |
---|
135 | }; |
---|
136 | |
---|
137 | }; // end namespace meta_predictor_glue |
---|
138 | }; // end namespace meta_predictor |
---|
139 | }; // end namespace predictor |
---|
140 | }; // end namespace stage_1_ifetch |
---|
141 | |
---|
142 | }; // end namespace behavioural |
---|
143 | }; // end namespace morpheo |
---|
144 | #endif |
---|