From c25e80b08f473fce0fdf11f2445f5b3f3b2bf342 Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sat, 15 Oct 2022 13:59:46 -0700
Subject: Move shared_bus into arbiter

---
 infra/arbiter.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'infra/arbiter.h')

diff --git a/infra/arbiter.h b/infra/arbiter.h
index 74e37be..79a9920 100644
--- a/infra/arbiter.h
+++ b/infra/arbiter.h
@@ -38,4 +38,18 @@ namespace infra {
                     initial = 0;
         }
     };
+
+    template<typename T, unsigned int peers> struct shared_bus : public sim {
+        std::array<port<T>, peers> peerp;
+        port<T> *outp = nullptr;
+
+        void clock() {
+            for (unsigned int i = 0; i < peers; ++i) {
+                if (peerp[i].can_read()) {
+                    assert(outp->can_write());
+                    outp->write(peerp[i].read());
+                }
+            }
+        }
+    };
 }
-- 
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