diff options
Diffstat (limited to 'frontends/verilog/verilog_lexer.l')
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 60 |
1 files changed, 55 insertions, 5 deletions
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index d12c9ee4e..4acfb414d 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -42,7 +42,7 @@ #include "kernel/log.h" #include "frontends/verilog/verilog_frontend.h" #include "frontends/ast/ast.h" -#include "verilog_parser.tab.h" +#include "verilog_parser.tab.hh" USING_YOSYS_NAMESPACE using namespace AST; @@ -70,6 +70,9 @@ YOSYS_NAMESPACE_END #define YY_INPUT(buf,result,max_size) \ result = readsome(*VERILOG_FRONTEND::lexin, buf, max_size) +#undef YY_BUF_SIZE +#define YY_BUF_SIZE 65536 + %} %option yylineno @@ -135,6 +138,9 @@ YOSYS_NAMESPACE_END frontend_verilog_yyerror("Unsupported default nettype: %s", p); } +"`protect"[^\n]* /* ignore `protect*/ +"`endprotect"[^\n]* /* ignore `endprotect*/ + "`"[a-zA-Z_$][a-zA-Z0-9_$]* { frontend_verilog_yyerror("Unimplemented compiler directive or undefined macro %s.", yytext); } @@ -145,11 +151,14 @@ 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); } "endpackage" { SV_KEYWORD(TOK_ENDPACKAGE); } +"interface" { SV_KEYWORD(TOK_INTERFACE); } +"endinterface" { SV_KEYWORD(TOK_ENDINTERFACE); } +"modport" { SV_KEYWORD(TOK_MODPORT); } "parameter" { return TOK_PARAMETER; } "localparam" { return TOK_LOCALPARAM; } "defparam" { return TOK_DEFPARAM; } @@ -183,6 +192,16 @@ YOSYS_NAMESPACE_END "always_ff" { SV_KEYWORD(TOK_ALWAYS); } "always_latch" { SV_KEYWORD(TOK_ALWAYS); } + /* use special token for labels on assert, assume, cover, and restrict because it's insanley complex + to fix parsing of cells otherwise. (the current cell parser forces a reduce very early to update some + global state.. its a mess) */ +[a-zA-Z_$][a-zA-Z0-9_$]*/[ \t\r\n]*:[ \t\r\n]*(assert|assume|cover|restrict)[^a-zA-Z0-9_$\.] { + if (!strcmp(yytext, "default")) + return TOK_DEFAULT; + frontend_verilog_yylval.string = new std::string(std::string("\\") + yytext); + return TOK_SVA_LABEL; +} + "assert" { if (formal_mode) return TOK_ASSERT; SV_KEYWORD(TOK_ASSERT); } "assume" { if (formal_mode) return TOK_ASSUME; SV_KEYWORD(TOK_ASSUME); } "cover" { if (formal_mode) return TOK_COVER; SV_KEYWORD(TOK_COVER); } @@ -192,7 +211,9 @@ YOSYS_NAMESPACE_END "const" { if (formal_mode) return TOK_CONST; SV_KEYWORD(TOK_CONST); } "checker" { if (formal_mode) return TOK_CHECKER; SV_KEYWORD(TOK_CHECKER); } "endchecker" { if (formal_mode) return TOK_ENDCHECKER; SV_KEYWORD(TOK_ENDCHECKER); } -"logic" { SV_KEYWORD(TOK_REG); } +"final" { SV_KEYWORD(TOK_FINAL); } +"logic" { SV_KEYWORD(TOK_LOGIC); } +"var" { SV_KEYWORD(TOK_VAR); } "bit" { SV_KEYWORD(TOK_REG); } "eventually" { if (formal_mode) return TOK_EVENTUALLY; SV_KEYWORD(TOK_EVENTUALLY); } @@ -202,6 +223,8 @@ YOSYS_NAMESPACE_END "output" { return TOK_OUTPUT; } "inout" { return TOK_INOUT; } "wire" { return TOK_WIRE; } +"wor" { return TOK_WOR; } +"wand" { return TOK_WAND; } "reg" { return TOK_REG; } "integer" { return TOK_INTEGER; } "signed" { return TOK_SIGNED; } @@ -216,7 +239,7 @@ YOSYS_NAMESPACE_END return TOK_CONSTVAL; } -[0-9]*[ \t]*\'s?[bodhBODH][ \t\r\n]*[0-9a-fA-FzxZX?_]+ { +[0-9]*[ \t]*\'[sS]?[bodhBODH]?[ \t\r\n]*[0-9a-fA-FzxZX?_]+ { frontend_verilog_yylval.string = new std::string(yytext); return TOK_CONSTVAL; } @@ -268,7 +291,7 @@ YOSYS_NAMESPACE_END yystr[j++] = yystr[i++]; } yystr[j] = 0; - frontend_verilog_yylval.string = new std::string(yystr); + frontend_verilog_yylval.string = new std::string(yystr, j); free(yystr); return TOK_STRING; } @@ -287,6 +310,17 @@ supply1 { return TOK_SUPPLY1; } return TOK_ID; } +"$"(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; +} + +"$"(info|warning|error|fatal) { + frontend_verilog_yylval.string = new std::string(yytext); + return TOK_MSG_TASKS; +} + "$signed" { return TOK_TO_SIGNED; } "$unsigned" { return TOK_TO_UNSIGNED; } @@ -295,6 +329,11 @@ supply1 { return TOK_SUPPLY1; } return TOK_ID; } +[a-zA-Z_$][a-zA-Z0-9_$\.]* { + frontend_verilog_yylval.string = new std::string(std::string("\\") + yytext); + return TOK_ID; +} + "/*"[ \t]*(synopsys|synthesis)[ \t]*translate_off[ \t]*"*/" { static bool printed_warning = false; if (!printed_warning) { @@ -392,6 +431,17 @@ 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 */ |