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verilog: support for time scale delay values

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Zachary Snow 2022-02-11 22:57:31 +01:00 • committed by Zachary Snow
parent 68c67c40ec
commit 15a4e900b2
4 changed files with 42 additions and 4 deletions
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15
frontends/verilog/verilog_lexer.l
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@ -128,6 +128,11 @@ static bool isUserType(std::string &s)
%x IMPORT_DPI
%x BASED_CONST
UNSIGNED_NUMBER [0-9][0-9_]*
FIXED_POINT_NUMBER_DEC [0-9][0-9_]*\.[0-9][0-9_]*([eE][-+]?[0-9_]+)?
FIXED_POINT_NUMBER_NO_DEC [0-9][0-9_]*[eE][-+]?[0-9_]+
TIME_SCALE_SUFFIX [munpf]?s
%%
// Initialise comment_caller to something to avoid a "maybe undefined"
// warning from GCC.
@ -297,7 +302,7 @@ static bool isUserType(std::string &s)
"union" { SV_KEYWORD(TOK_UNION); }
"packed" { SV_KEYWORD(TOK_PACKED); }
[0-9][0-9_]* {
{UNSIGNED_NUMBER} {
yylval->string = new std::string(yytext);
return TOK_CONSTVAL;
}
@ -319,12 +324,12 @@ static bool isUserType(std::string &s)
return TOK_BASED_CONSTVAL;
}
[0-9][0-9_]*\.[0-9][0-9_]*([eE][-+]?[0-9_]+)? {
{FIXED_POINT_NUMBER_DEC} {
yylval->string = new std::string(yytext);
return TOK_REALVAL;
}
[0-9][0-9_]*[eE][-+]?[0-9_]+ {
{FIXED_POINT_NUMBER_NO_DEC} {
yylval->string = new std::string(yytext);
return TOK_REALVAL;
}
@ -574,6 +579,10 @@ import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ {
return TOK_SPECIFY_AND;
}
{UNSIGNED_NUMBER}{TIME_SCALE_SUFFIX} { return TOK_TIME_SCALE; }
{FIXED_POINT_NUMBER_DEC}{TIME_SCALE_SUFFIX} { return TOK_TIME_SCALE; }
{FIXED_POINT_NUMBER_NO_DEC}{TIME_SCALE_SUFFIX} { return TOK_TIME_SCALE; }
<INITIAL,BASED_CONST>"/*" { comment_caller=YY_START; BEGIN(COMMENT); }
<COMMENT>. /* ignore comment body */
<COMMENT>\n /* ignore comment body */