Omit unecessary hwif signals if an external register is read-only or write-only. #58

2023-08-02 21:38:06 -07:00
parent 8a6f525ee2
commit 941871007b
10 changed files with 186 additions and 14 deletions
--- a/src/peakrdl_regblock/readback/generators.py
+++ b/src/peakrdl_regblock/readback/generators.py
@@ -92,11 +92,11 @@ class ReadbackAssignmentGenerator(RDLForLoopGenerator):
        return WalkerAction.Continue

    def enter_Reg(self, node: RegNode) -> WalkerAction:
-        if node.external:
-            self.process_external_reg(node)
+        if not node.has_sw_readable:
            return WalkerAction.SkipDescendants

-        if not node.has_sw_readable:
+        if node.external:
+            self.process_external_reg(node)
            return WalkerAction.SkipDescendants

        accesswidth = node.get_property('accesswidth')