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| author | Clifford Wolf <clifford@clifford.at> | 2019-06-28 10:21:16 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2019-06-28 10:21:16 +0200 |
| commit | af744097496702926f4fbff5d6eb889ad82fa6cf (patch) | |
| tree | 8edf7348a7867a6bf35f107146ac61918cd14ef7 /frontends | |
| parent | 1c7ce251f383a2c6734fc7ca778c5234e0c97a2a (diff) | |
| download | yosys-af744097496702926f4fbff5d6eb889ad82fa6cf.tar.gz yosys-af744097496702926f4fbff5d6eb889ad82fa6cf.tar.bz2 yosys-af744097496702926f4fbff5d6eb889ad82fa6cf.zip | |
Improve specify dummy parser, fixes #1144
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index d89b2dc88..dab5b5919 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -1068,11 +1068,18 @@ list_of_path_delay_extra_expressions : path_delay_expression ',' path_delay_expression ',' path_delay_expression ; +specify_edge_identifier : + TOK_POSEDGE | TOK_NEGEDGE ; + parallel_path_description : - '(' specify_input_terminal_descriptor opt_polarity_operator '=' '>' specify_output_terminal_descriptor ')' ; + '(' specify_input_terminal_descriptor opt_polarity_operator '=' '>' specify_output_terminal_descriptor ')' | + '(' specify_edge_identifier specify_input_terminal_descriptor '=' '>' '(' specify_output_terminal_descriptor opt_polarity_operator ':' ignspec_expr ')' ')' | + '(' specify_edge_identifier specify_input_terminal_descriptor '=' '>' '(' specify_output_terminal_descriptor TOK_POS_INDEXED ignspec_expr ')' ')' ; full_path_description : - '(' list_of_path_inputs '*' '>' list_of_path_outputs ')' ; + '(' list_of_path_inputs '*' '>' list_of_path_outputs ')' | + '(' specify_edge_identifier list_of_path_inputs '*' '>' '(' list_of_path_outputs opt_polarity_operator ':' ignspec_expr ')' ')' | + '(' specify_edge_identifier list_of_path_inputs '*' '>' '(' list_of_path_outputs TOK_POS_INDEXED ignspec_expr ')' ')' ; // This was broken into 2 rules to solve shift/reduce conflicts list_of_path_inputs : |