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| author | Clifford Wolf <clifford@clifford.at> | 2019-05-06 20:57:15 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-06 20:57:15 +0200 |
| commit | 752553d8e91643228714e04d9887d32f5d47870a (patch) | |
| tree | e7e427b9e6558800b6131022c880af8ccc053845 /frontends/verilog/verilog_lexer.l | |
| parent | 1706798f4e595266a8758ae6d0ff9d978299de10 (diff) | |
| parent | 8c6e94d57c430fc516dbcfbde312dbd7c860477b (diff) | |
| download | yosys-752553d8e91643228714e04d9887d32f5d47870a.tar.gz yosys-752553d8e91643228714e04d9887d32f5d47870a.tar.bz2 yosys-752553d8e91643228714e04d9887d32f5d47870a.zip | |
Merge pull request #946 from YosysHQ/clifford/specify
Add specify parser
Diffstat (limited to 'frontends/verilog/verilog_lexer.l')
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index 08e556e8e..142d05d45 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -148,7 +148,7 @@ YOSYS_NAMESPACE_END "endfunction" { return TOK_ENDFUNCTION; } "task" { return TOK_TASK; } "endtask" { return TOK_ENDTASK; } -"specify" { return TOK_SPECIFY; } +"specify" { return specify_mode ? TOK_SPECIFY : TOK_IGNORED_SPECIFY; } "endspecify" { return TOK_ENDSPECIFY; } "specparam" { return TOK_SPECPARAM; } "package" { SV_KEYWORD(TOK_PACKAGE); } @@ -303,6 +303,12 @@ supply1 { return TOK_SUPPLY1; } return TOK_ID; } +"$"(setup|hold|setuphold|removal|recovery|recrem|skew|timeskew|fullskew|nochange) { + if (!specify_mode) REJECT; + frontend_verilog_yylval.string = new std::string(yytext); + return TOK_ID; +} + "$signed" { return TOK_TO_SIGNED; } "$unsigned" { return TOK_TO_UNSIGNED; } @@ -413,6 +419,17 @@ import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ { "+:" { return TOK_POS_INDEXED; } "-:" { return TOK_NEG_INDEXED; } +[-+]?[=*]> { + if (!specify_mode) REJECT; + frontend_verilog_yylval.string = new std::string(yytext); + return TOK_SPECIFY_OPER; +} + +"&&&" { + if (!specify_mode) REJECT; + return TOK_SPECIFY_AND; +} + "/*" { BEGIN(COMMENT); } <COMMENT>. /* ignore comment body */ <COMMENT>\n /* ignore comment body */ |