Fix oversized address width calculation edge case. #46

SystemRDL · Jun 13, 2023 · ac3f466 · ac3f466
1 parent b107be5
commit ac3f466
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/peakrdl_regblock/exporter.py b/src/peakrdl_regblock/exporter.py
@@ -253,7 +253,7 @@ def __init__(self, top_node: AddrmapNode, kwargs: Any) -> None:
 
         #------------------------
 
-        self.addr_width = self.top_node.size.bit_length()
+        self.addr_width = (self.top_node.size - 1).bit_length()
         if user_addr_width is not None:
             if user_addr_width < self.addr_width:
                 msg.fatal(f"User-specified address width shall be greater than or equal to {self.addr_width}.")