From: Aaron Taylor <ataylor@subgeniuskitty.com>
Date: Sun, 3 Jan 2021 02:55:35 +0000 (-0800)
Subject: Add to MMU init: bypass cache in MMIO page
X-Git-Url: http://git.subgeniuskitty.com/pdp11-memory-test/.git/commitdiff_plain/HEAD

Add to MMU init: bypass cache in MMIO page
---

diff --git a/pdp11_mmu.c b/pdp11_mmu.c
index eb75cbd..a06cf16 100644
--- a/pdp11_mmu.c
+++ b/pdp11_mmu.c
@@ -40,6 +40,9 @@ init_mmu(void)
     KISDR4 = data;
     KISDR5 = data;
     KISDR6 = data;
+
+    SET(data,PDR_BYPASCACHE,1);
+
     KISDR7 = data;
 
     /*