From ac10e7d96da4965751fd60a8dd42a8998c011c39 Mon Sep 17 00:00:00 2001 From: Udi Finkelstein Date: Fri, 3 May 2019 03:10:43 +0300 Subject: Initial implementation of elaboration system tasks (IEEE1800-2017 section 20.11) This PR allows us to use $info/$warning/$error/$fatal **at elaboration time** within a generate block. This is very useful to stop a synthesis of a parametrized block when an illegal combination of parameters is chosen. --- frontends/verilog/verilog_lexer.l | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'frontends/verilog/verilog_lexer.l') diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index 6ef38252a..1c6810b47 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -301,6 +301,11 @@ supply1 { return TOK_SUPPLY1; } return TOK_ID; } +"$"(info|warning|error|fatal) { + frontend_verilog_yylval.string = new std::string(yytext); + return TOK_ELAB_TASK; +} + "$signed" { return TOK_TO_SIGNED; } "$unsigned" { return TOK_TO_UNSIGNED; } -- cgit v1.2.3