From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 2 Jun 2010 17:58:17 +0000 (-0500)
Subject: ARM: Treat LDRD in ARM with an odd index as an undefined instruction.
X-Git-Tag: stable_2012_02_02~1076
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0e556e9dfbd9a3b3f06a023d4edf3b3678fd0a40;p=gem5.git

ARM: Treat LDRD in ARM with an odd index as an undefined instruction.
---

diff --git a/src/arch/arm/isa/formats/mem.isa b/src/arch/arm/isa/formats/mem.isa
index aa8bbf55e..59a6f126a 100644
--- a/src/arch/arm/isa/formats/mem.isa
+++ b/src/arch/arm/isa/formats/mem.isa
@@ -122,8 +122,10 @@ def format AddrMode3() {{
           case 0x2:
             if (op1 & 0x1) {
                 %(ldrsb)s
-            } else {
+            } else if ((RT %% 2) == 0) {
                 %(ldrd)s
+            } else {
+                return new Unknown(machInst);
             }
           case 0x3:
             if (op1 & 0x1) {