From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 25 Feb 2009 18:19:47 +0000 (-0800)
Subject: X86: Check src1 for illegal values since that's the index we actually use.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cb4141f6e679db9725ad152df89941998535ad95;p=gem5.git

X86: Check src1 for illegal values since that's the index we actually use.
---

diff --git a/src/arch/x86/isa/microops/regop.isa b/src/arch/x86/isa/microops/regop.isa
index 4434f9e74..74c93a20a 100644
--- a/src/arch/x86/isa/microops/regop.isa
+++ b/src/arch/x86/isa/microops/regop.isa
@@ -928,7 +928,7 @@ let {{
             super(Rdcr, self).__init__(dest, \
                     src1, "NUM_INTREGS", flags, dataSize)
         code = '''
-            if (dest == 1 || (dest > 4 && dest < 8) || (dest > 8)) {
+            if (src1 == 1 || (src1 > 4 && src1 < 8) || (src1 > 8)) {
                 fault = new InvalidOpcode();
             } else {
                 DestReg = ControlSrc1;