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-rw-r--r--frontends/verilog/verilog_parser.y15
1 files changed, 13 insertions, 2 deletions
diff --git a/frontends/verilog/verilog_parser.y b/frontends/verilog/verilog_parser.y
index ea8e457e8..ebb4369c3 100644
--- a/frontends/verilog/verilog_parser.y
+++ b/frontends/verilog/verilog_parser.y
@@ -345,7 +345,13 @@ module_arg_opt_assignment:
if (ast_stack.back()->children.size() > 0 && ast_stack.back()->children.back()->type == AST_WIRE) {
AstNode *wire = new AstNode(AST_IDENTIFIER);
wire->str = ast_stack.back()->children.back()->str;
- if (ast_stack.back()->children.back()->is_reg)
+ if (ast_stack.back()->children.back()->is_input) {
+ AstNode *n = ast_stack.back()->children.back();
+ if (n->attributes.count("\\defaultvalue"))
+ delete n->attributes.at("\\defaultvalue");
+ n->attributes["\\defaultvalue"] = $2;
+ } else
+ if (ast_stack.back()->children.back()->is_reg || ast_stack.back()->children.back()->is_logic)
ast_stack.back()->children.push_back(new AstNode(AST_INITIAL, new AstNode(AST_BLOCK, new AstNode(AST_ASSIGN_LE, wire, $2))));
else
ast_stack.back()->children.push_back(new AstNode(AST_ASSIGN, wire, $2));
@@ -1360,7 +1366,12 @@ wire_name_and_opt_assign:
wire_name '=' expr {
AstNode *wire = new AstNode(AST_IDENTIFIER);
wire->str = ast_stack.back()->children.back()->str;
- if (astbuf1->is_reg)
+ if (astbuf1->is_input) {
+ if (astbuf1->attributes.count("\\defaultvalue"))
+ delete astbuf1->attributes.at("\\defaultvalue");
+ astbuf1->attributes["\\defaultvalue"] = $3;
+ } else
+ if (astbuf1->is_reg || astbuf1->is_logic)
ast_stack.back()->children.push_back(new AstNode(AST_INITIAL, new AstNode(AST_BLOCK, new AstNode(AST_ASSIGN_LE, wire, $3))));
else
ast_stack.back()->children.push_back(new AstNode(AST_ASSIGN, wire, $3));