diff options
Diffstat (limited to 'frontends/verilog')
| -rw-r--r-- | frontends/verilog/verilog_lexer.l | 4 | ||||
| -rw-r--r-- | frontends/verilog/verilog_parser.y | 29 |
2 files changed, 33 insertions, 0 deletions
diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l index 69a8ddaad..107a2dfdd 100644 --- a/frontends/verilog/verilog_lexer.l +++ b/frontends/verilog/verilog_lexer.l @@ -141,6 +141,8 @@ YOSYS_NAMESPACE_END "endfunction" { return TOK_ENDFUNCTION; } "task" { return TOK_TASK; } "endtask" { return TOK_ENDTASK; } +"package" { SV_KEYWORD(TOK_PACKAGE); } +"endpackage" { SV_KEYWORD(TOK_ENDPACKAGE); } "parameter" { return TOK_PARAMETER; } "localparam" { return TOK_LOCALPARAM; } "defparam" { return TOK_DEFPARAM; } @@ -351,6 +353,8 @@ import[ \t\r\n]+\"(DPI|DPI-C)\"[ \t\r\n]+function[ \t\r\n]+ { "<<<" { return OP_SSHL; } ">>>" { return OP_SSHR; } +"::" { SV_KEYWORD(TOK_PACKAGESEP); } + "+:" { return TOK_POS_INDEXED; } "-:" { return TOK_NEG_INDEXED; } diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y index f95849133..b46cdd38f 100644 --- a/frontends/verilog/verilog_parser.y +++ b/frontends/verilog/verilog_parser.y @@ -102,6 +102,7 @@ static void free_attr(std::map<std::string, AstNode*> *al) %token <string> TOK_STRING TOK_ID TOK_CONST TOK_REALVAL TOK_PRIMITIVE %token ATTR_BEGIN ATTR_END DEFATTR_BEGIN DEFATTR_END %token TOK_MODULE TOK_ENDMODULE TOK_PARAMETER TOK_LOCALPARAM TOK_DEFPARAM +%token TOK_PACKAGE TOK_ENDPACKAGE TOK_PACKAGESEP %token TOK_INPUT TOK_OUTPUT TOK_INOUT TOK_WIRE TOK_REG %token TOK_INTEGER TOK_SIGNED TOK_ASSIGN TOK_ALWAYS TOK_INITIAL %token TOK_BEGIN TOK_END TOK_IF TOK_ELSE TOK_FOR TOK_WHILE TOK_REPEAT @@ -155,6 +156,7 @@ design: task_func_decl design | param_decl design | localparam_decl design | + package design | /* empty */; attr: @@ -212,6 +214,14 @@ hierarchical_id: TOK_ID { $$ = $1; } | + hierarchical_id TOK_PACKAGESEP TOK_ID { + if ($3->substr(0, 1) == "\\") + *$1 += "::" + $3->substr(1); + else + *$1 += "::" + *$3; + delete $3; + $$ = $1; + } | hierarchical_id '.' TOK_ID { if ($3->substr(0, 1) == "\\") *$1 += "." + $3->substr(1); @@ -311,6 +321,25 @@ module_arg: do_not_require_port_stubs = true; }; +package: + attr TOK_PACKAGE TOK_ID { + AstNode *mod = new AstNode(AST_PACKAGE); + ast_stack.back()->children.push_back(mod); + ast_stack.push_back(mod); + current_ast_mod = mod; + mod->str = *$3; + append_attr(mod, $1); + } ';' package_body TOK_ENDPACKAGE { + ast_stack.pop_back(); + current_ast_mod = NULL; + }; + +package_body: + package_body package_body_stmt |; + +package_body_stmt: + localparam_decl; + non_opt_delay: '#' '(' expr ')' { delete $3; } | '#' '(' expr ':' expr ':' expr ')' { delete $3; delete $5; delete $7; }; |