From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 19 Apr 2009 11:55:43 +0000 (-0700)
Subject: X86: Implement the ldstl microop.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d2554ff0304af0d4b365894026b702b5714385d6;p=gem5.git

X86: Implement the ldstl microop.
This microop does a load, checks that a store would succeed, and locks the
requested address.
---

diff --git a/src/arch/x86/isa/microops/ldstop.isa b/src/arch/x86/isa/microops/ldstop.isa
index 24ddd0b43..5df423ea9 100644
--- a/src/arch/x86/isa/microops/ldstop.isa
+++ b/src/arch/x86/isa/microops/ldstop.isa
@@ -440,6 +440,8 @@ let {{
     defineMicroLoadOp('Ld', 'Data = merge(Data, Mem, dataSize);')
     defineMicroLoadOp('Ldst', 'Data = merge(Data, Mem, dataSize);',
             'X86ISA::StoreCheck')
+    defineMicroLoadOp('Ldstl', 'Data = merge(Data, Mem, dataSize);',
+            'X86ISA::StoreCheck | Request::LOCKED')
     defineMicroLoadOp('Ldfp', 'FpData.uqw = Mem;')
 
     def defineMicroStoreOp(mnemonic, code, \