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| author | Clifford Wolf <clifford@clifford.at> | 2014-08-21 12:43:51 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2014-08-21 12:43:51 +0200 |
| commit | 7bfc4ae12030648cd73686d3779c6d412a3c33c0 (patch) | |
| tree | dff31bd0f98d3c75f3c394cb6f0420bb0855933f /frontends/verilog/lexer.l | |
| parent | 38addd4c67905e3d1514ba839f07d94058e42560 (diff) | |
| download | yosys-7bfc4ae12030648cd73686d3779c6d412a3c33c0.tar.gz yosys-7bfc4ae12030648cd73686d3779c6d412a3c33c0.tar.bz2 yosys-7bfc4ae12030648cd73686d3779c6d412a3c33c0.zip | |
Added Verilog/AST support for DPI functions (dpi_call() still unimplemented)
Diffstat (limited to 'frontends/verilog/lexer.l')
| -rw-r--r-- | frontends/verilog/lexer.l | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/frontends/verilog/lexer.l b/frontends/verilog/lexer.l index fdb9bb02c..cf51aac82 100644 --- a/frontends/verilog/lexer.l +++ b/frontends/verilog/lexer.l @@ -74,6 +74,7 @@ YOSYS_NAMESPACE_END %x STRING %x SYNOPSYS_TRANSLATE_OFF %x SYNOPSYS_FLAGS +%x IMPORT_DPI %% @@ -274,6 +275,27 @@ supply1 { return TOK_SUPPLY1; } <SYNOPSYS_FLAGS>. /* ignore everything else */ <SYNOPSYS_FLAGS>"*/" { BEGIN(0); } +import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ { + BEGIN(IMPORT_DPI); + return TOK_DPI_FUNCTION; +} + +<IMPORT_DPI>[(),] { + return *yytext; +} + +<IMPORT_DPI>[a-zA-Z_$][a-zA-Z0-9_$]* { + frontend_verilog_yylval.string = new std::string(std::string("\\") + yytext); + return TOK_ID; +} + +<IMPORT_DPI>[ \t\r\n] /* ignore whitespaces */ + +<IMPORT_DPI>";" { + BEGIN(0); + return *yytext; +} + "\\"[^ \t\r\n]+ { frontend_verilog_yylval.string = new std::string(yytext); return TOK_ID; |