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1
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{
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2
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"DESIGN_FILE" : {
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3
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"design_units" : [{
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4
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"contexts" : [], "library" : ["ENTITY_DECLARATION", {
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5
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"name" : ["IDENTIFIER", "hold_time_checker"], "ENTITY_DECLARATIVE_PART" : [], "ENTITY_STATEMENT_PART" : []}
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6
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]}
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7
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, {
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8
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"contexts" : [], "library" : ["ARCHITECTURE_BODY", {
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9
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"name" : ["IDENTIFIER", "test"], "entity" : ["IDENTIFIER", "hold_time_checker"], "ARCHITECTURE_DECLARATIVE_PART" : [{
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10
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"declaration" : ["CONSTANT_DECLARATION", {
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11
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"names" : [["IDENTIFIER", "Thold_d_clk"]], "typ" : {
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12
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"name" : ["SIMPLE_NAME", "delay_length"]}
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13
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, "init_val" : ["EXPRESSION", {
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14
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"args" : [["EXPRESSION", {
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15
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"args" : [["EXPRESSION", {
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16
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"args" : [["EXPRESSION", {
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17
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"args" : [["CONSTANT_VALUE", {
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18
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"value" : ["CST_LITERAL", "3"], "unit_name" : ["SIMPLE_NAME", "ns"]}
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19
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]]}
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20
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]]}
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21
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]]}
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]]}
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23
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]}
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24
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]}
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, {
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26
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"declaration" : ["SIGNAL_DECLARATION", {
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27
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"names" : [["IDENTIFIER", "clk"], ["IDENTIFIER", "d"]], "typ" : {
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28
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"name" : ["SIMPLE_NAME", "bit"]}
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29
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, "init_val" : ["EXPRESSION", {
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30
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"args" : [["EXPRESSION", {
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31
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"args" : [["EXPRESSION", {
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32
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"args" : [["EXPRESSION", {
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33
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"args" : [["CONSTANT_VALUE", {
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34
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"value" : ["CST_LITERAL", "'0'"]}
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35
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]]}
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36
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]]}
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]]}
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38
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]]}
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39
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]}
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]}
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], "ARCHITECTURE_STATEMENT_PART" : [["PROCESS_STATEMENT", {
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42
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"id" : ["IDENTIFIER", "hold_time_checker"], "PROCESS_DECLARATIVE_PART" : [{
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43
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"declaration" : ["VARIABLE_DECLARATION", {
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44
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"names" : [["IDENTIFIER", "last_clk_edge_time"]], "typ" : {
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45
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"name" : ["SIMPLE_NAME", "time"]}
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46
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, "init_val" : ["EXPRESSION", {
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47
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"args" : [["EXPRESSION", {
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48
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"args" : [["EXPRESSION", {
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49
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"args" : [["EXPRESSION", {
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50
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"args" : [["CONSTANT_VALUE", {
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51
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"value" : ["CST_LITERAL", "0"], "unit_name" : ["SIMPLE_NAME", "fs"]}
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52
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]]}
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53
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]]}
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54
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]]}
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55
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]]}
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56
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]}
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57
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]}
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58
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], "active_sigs" : [["SIMPLE_NAME", "clk"], ["SIMPLE_NAME", "d"]], "PROCESS_STATEMENT_PART" : [["IF_STATEMENT", {
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59
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"if_cases" : [{
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60
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"if_cond" : ["EXPRESSION", {
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61
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"id" : "and", "args" : [["EXPRESSION", {
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62
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"args" : [["EXPRESSION", {
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63
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"args" : [["EXPRESSION", {
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|
64
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"args" : [["EXPRESSION", {
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65
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"args" : [["CALL", ["ATTRIBUTE_NAME", {
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66
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"id" : ["SIMPLE_NAME", "clk"], "designator" : ["SIMPLE_NAME", "event"]}
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67
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]]]}
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68
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]]}
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69
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]]}
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70
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]]}
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71
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], ["EXPRESSION", {
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72
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"id" : "=", "args" : [["EXPRESSION", {
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73
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"args" : [["EXPRESSION", {
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74
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"args" : [["EXPRESSION", {
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75
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"args" : [["CALL", ["SIMPLE_NAME", "clk"]]]}
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76
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]]}
|
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77
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]]}
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78
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], ["EXPRESSION", {
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79
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"args" : [["EXPRESSION", {
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|
80
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"args" : [["EXPRESSION", {
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81
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"args" : [["CONSTANT_VALUE", {
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82
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"value" : ["CST_LITERAL", "'1'"]}
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83
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]]}
|
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84
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]]}
|
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85
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]]}
|
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86
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]]}
|
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87
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]]}
|
|
88
|
], "if_block" : [["VARIABLE_ASSIGNMENT_STATEMENT", {
|
|
89
|
"lhs" : ["SIMPLE_NAME", "last_clk_edge_time"], "rhs" : ["EXPRESSION", {
|
|
90
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"args" : [["EXPRESSION", {
|
|
91
|
"args" : [["EXPRESSION", {
|
|
92
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"args" : [["EXPRESSION", {
|
|
93
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"args" : [["CALL", ["SIMPLE_NAME", "now"]]]}
|
|
94
|
]]}
|
|
95
|
]]}
|
|
96
|
]]}
|
|
97
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]}
|
|
98
|
]]}
|
|
99
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]}
|
|
100
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], ["IF_STATEMENT", {
|
|
101
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"if_cases" : [{
|
|
102
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"if_cond" : ["EXPRESSION", {
|
|
103
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"args" : [["EXPRESSION", {
|
|
104
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"args" : [["EXPRESSION", {
|
|
105
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"args" : [["EXPRESSION", {
|
|
106
|
"args" : [["CALL", ["ATTRIBUTE_NAME", {
|
|
107
|
"id" : ["SIMPLE_NAME", "d"], "designator" : ["SIMPLE_NAME", "event"]}
|
|
108
|
]]]}
|
|
109
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]]}
|
|
110
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]]}
|
|
111
|
]]}
|
|
112
|
], "if_block" : [["ASSERTION_STATEMENT", {
|
|
113
|
"cond" : ["EXPRESSION", {
|
|
114
|
"id" : ">=", "args" : [["EXPRESSION", {
|
|
115
|
"args" : [["EXPRESSION", {
|
|
116
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"args" : [["EXPRESSION", {
|
|
117
|
"id" : "-", "args" : [["EXPRESSION", {
|
|
118
|
"args" : [["CALL", ["SIMPLE_NAME", "now"]]]}
|
|
119
|
], ["EXPRESSION", {
|
|
120
|
"args" : [["CALL", ["SIMPLE_NAME", "last_clk_edge_time"]]]}
|
|
121
|
]]}
|
|
122
|
]]}
|
|
123
|
]]}
|
|
124
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], ["EXPRESSION", {
|
|
125
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"args" : [["EXPRESSION", {
|
|
126
|
"args" : [["EXPRESSION", {
|
|
127
|
"args" : [["CALL", ["SIMPLE_NAME", "Thold_d_clk"]]]}
|
|
128
|
]]}
|
|
129
|
]]}
|
|
130
|
]]}
|
|
131
|
], "report" : ["EXPRESSION", {
|
|
132
|
"args" : [["EXPRESSION", {
|
|
133
|
"args" : [["EXPRESSION", {
|
|
134
|
"args" : [["EXPRESSION", {
|
|
135
|
"args" : [["CONSTANT_VALUE", {
|
|
136
|
"value" : ["CST_LITERAL", "\"hold time violation\""]}
|
|
137
|
]]}
|
|
138
|
]]}
|
|
139
|
]]}
|
|
140
|
]]}
|
|
141
|
]}
|
|
142
|
]]}
|
|
143
|
]}
|
|
144
|
]]}
|
|
145
|
], ["CONDITIONAL_SIGNAL_ASSIGNMENT", {
|
|
146
|
"postponed" : false, "label" : ["IDENTIFIER", "clk_gen"], "lhs" : ["SIMPLE_NAME", "clk"], "rhs" : [{
|
|
147
|
"expr" : [{
|
|
148
|
"value" : ["EXPRESSION", {
|
|
149
|
"args" : [["EXPRESSION", {
|
|
150
|
"args" : [["EXPRESSION", {
|
|
151
|
"args" : [["EXPRESSION", {
|
|
152
|
"args" : [["CONSTANT_VALUE", {
|
|
153
|
"value" : ["CST_LITERAL", "'1'"]}
|
|
154
|
]]}
|
|
155
|
]]}
|
|
156
|
]]}
|
|
157
|
]]}
|
|
158
|
], "delay" : ["EXPRESSION", {
|
|
159
|
"args" : [["EXPRESSION", {
|
|
160
|
"args" : [["EXPRESSION", {
|
|
161
|
"args" : [["EXPRESSION", {
|
|
162
|
"args" : [["CONSTANT_VALUE", {
|
|
163
|
"value" : ["CST_LITERAL", "10"], "unit_name" : ["SIMPLE_NAME", "ns"]}
|
|
164
|
]]}
|
|
165
|
]]}
|
|
166
|
]]}
|
|
167
|
]]}
|
|
168
|
]}
|
|
169
|
, {
|
|
170
|
"value" : ["EXPRESSION", {
|
|
171
|
"args" : [["EXPRESSION", {
|
|
172
|
"args" : [["EXPRESSION", {
|
|
173
|
"args" : [["EXPRESSION", {
|
|
174
|
"args" : [["CONSTANT_VALUE", {
|
|
175
|
"value" : ["CST_LITERAL", "'0'"]}
|
|
176
|
]]}
|
|
177
|
]]}
|
|
178
|
]]}
|
|
179
|
]]}
|
|
180
|
], "delay" : ["EXPRESSION", {
|
|
181
|
"args" : [["EXPRESSION", {
|
|
182
|
"args" : [["EXPRESSION", {
|
|
183
|
"args" : [["EXPRESSION", {
|
|
184
|
"args" : [["CONSTANT_VALUE", {
|
|
185
|
"value" : ["CST_LITERAL", "20"], "unit_name" : ["SIMPLE_NAME", "ns"]}
|
|
186
|
]]}
|
|
187
|
]]}
|
|
188
|
]]}
|
|
189
|
]]}
|
|
190
|
]}
|
|
191
|
], "cond" : ["EXPRESSION", {
|
|
192
|
"id" : "=", "args" : [["EXPRESSION", {
|
|
193
|
"args" : [["EXPRESSION", {
|
|
194
|
"args" : [["EXPRESSION", {
|
|
195
|
"args" : [["CALL", ["SIMPLE_NAME", "clk"]]]}
|
|
196
|
]]}
|
|
197
|
]]}
|
|
198
|
], ["EXPRESSION", {
|
|
199
|
"args" : [["EXPRESSION", {
|
|
200
|
"args" : [["EXPRESSION", {
|
|
201
|
"args" : [["CONSTANT_VALUE", {
|
|
202
|
"value" : ["CST_LITERAL", "'0'"]}
|
|
203
|
]]}
|
|
204
|
]]}
|
|
205
|
]]}
|
|
206
|
]]}
|
|
207
|
]}
|
|
208
|
]}
|
|
209
|
], ["CONDITIONAL_SIGNAL_ASSIGNMENT", {
|
|
210
|
"postponed" : false, "label" : ["IDENTIFIER", "stimulus"], "lhs" : ["SIMPLE_NAME", "d"], "rhs" : [{
|
|
211
|
"expr" : [{
|
|
212
|
"value" : ["EXPRESSION", {
|
|
213
|
"args" : [["EXPRESSION", {
|
|
214
|
"args" : [["EXPRESSION", {
|
|
215
|
"args" : [["EXPRESSION", {
|
|
216
|
"args" : [["CONSTANT_VALUE", {
|
|
217
|
"value" : ["CST_LITERAL", "'1'"]}
|
|
218
|
]]}
|
|
219
|
]]}
|
|
220
|
]]}
|
|
221
|
]]}
|
|
222
|
], "delay" : ["EXPRESSION", {
|
|
223
|
"args" : [["EXPRESSION", {
|
|
224
|
"args" : [["EXPRESSION", {
|
|
225
|
"args" : [["EXPRESSION", {
|
|
226
|
"args" : [["CONSTANT_VALUE", {
|
|
227
|
"value" : ["CST_LITERAL", "15"], "unit_name" : ["SIMPLE_NAME", "ns"]}
|
|
228
|
]]}
|
|
229
|
]]}
|
|
230
|
]]}
|
|
231
|
]]}
|
|
232
|
]}
|
|
233
|
, {
|
|
234
|
"value" : ["EXPRESSION", {
|
|
235
|
"args" : [["EXPRESSION", {
|
|
236
|
"args" : [["EXPRESSION", {
|
|
237
|
"args" : [["EXPRESSION", {
|
|
238
|
"args" : [["CONSTANT_VALUE", {
|
|
239
|
"value" : ["CST_LITERAL", "'0'"]}
|
|
240
|
]]}
|
|
241
|
]]}
|
|
242
|
]]}
|
|
243
|
]]}
|
|
244
|
], "delay" : ["EXPRESSION", {
|
|
245
|
"args" : [["EXPRESSION", {
|
|
246
|
"args" : [["EXPRESSION", {
|
|
247
|
"args" : [["EXPRESSION", {
|
|
248
|
"args" : [["CONSTANT_VALUE", {
|
|
249
|
"value" : ["CST_LITERAL", "53"], "unit_name" : ["SIMPLE_NAME", "ns"]}
|
|
250
|
]]}
|
|
251
|
]]}
|
|
252
|
]]}
|
|
253
|
]]}
|
|
254
|
]}
|
|
255
|
, {
|
|
256
|
"value" : ["EXPRESSION", {
|
|
257
|
"args" : [["EXPRESSION", {
|
|
258
|
"args" : [["EXPRESSION", {
|
|
259
|
"args" : [["EXPRESSION", {
|
|
260
|
"args" : [["CONSTANT_VALUE", {
|
|
261
|
"value" : ["CST_LITERAL", "'1'"]}
|
|
262
|
]]}
|
|
263
|
]]}
|
|
264
|
]]}
|
|
265
|
]]}
|
|
266
|
], "delay" : ["EXPRESSION", {
|
|
267
|
"args" : [["EXPRESSION", {
|
|
268
|
"args" : [["EXPRESSION", {
|
|
269
|
"args" : [["EXPRESSION", {
|
|
270
|
"args" : [["CONSTANT_VALUE", {
|
|
271
|
"value" : ["CST_LITERAL", "72"], "unit_name" : ["SIMPLE_NAME", "ns"]}
|
|
272
|
]]}
|
|
273
|
]]}
|
|
274
|
]]}
|
|
275
|
]]}
|
|
276
|
]}
|
|
277
|
]}
|
|
278
|
]}
|
|
279
|
]]}
|
|
280
|
]}
|
|
281
|
]}
|
|
282
|
}
|