From a10084fbba0ba88a1f0517b826ef8de44d8760d1 Mon Sep 17 00:00:00 2001
From: Albert Magyar
Date: Wed, 11 Sep 2019 18:16:20 -0700
Subject: Improve read-under-write parameter support

* Make the read-under-write (RUW) parameter typesafe
* Add RUW support to the FIRRTL proto and CHIRRTL grammar
---
 src/main/proto/firrtl.proto | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/main/proto')

diff --git a/src/main/proto/firrtl.proto b/src/main/proto/firrtl.proto
index b8f6db98..0cf14f41 100644
--- a/src/main/proto/firrtl.proto
+++ b/src/main/proto/firrtl.proto
@@ -104,6 +104,12 @@ message Firrtl {
       Expression init = 5;
     }
 
+    enum ReadUnderWrite {
+      UNDEFINED = 0;
+      OLD = 1;
+      NEW = 2;
+    }
+
     message Memory {
       // Required.
       string id = 1;
@@ -121,6 +127,7 @@ message Firrtl {
       repeated string reader_id = 6;
       repeated string writer_id = 7;
       repeated string readwriter_id = 8;
+      ReadUnderWrite read_under_write = 10;
     }
 
     message CMemory {
@@ -138,6 +145,7 @@ message Firrtl {
       }
       // Required.
       bool sync_read = 3;
+      ReadUnderWrite read_under_write = 5;
     }
 
     message Instance {
-- 
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