X86: Implement an SSE xor microop and instruction.

--HG--
extra : convert_revision : 949737d0f5d6fe4aa77cc4680d0c88caab3e8174

src/arch/x86/isa/decoder/two_byte_opcodes.isa

@@ -278,7 +278,9 @@
                     0x4: andpd_Vo_Wo();
                     0x5: andnpd_Vo_Wo();
                     0x6: orpd_Vo_Wo();
-                    0x7: xorpd_Vo_Wo();
+                    //This really should be type o, but it works on q sized
+                    //chunks at a time.
+                    0x7: Inst::XORPD(Vq,Wq);
                     default: Inst::UD2();
                 }
                 // repne (0xF2)

src/arch/x86/isa/insts/sse/__init__.py

@@ -56,7 +56,8 @@
 categories = ["move",
               "convert",
               "add_and_subtract",
-              "multiply_and_divide"]
+              "multiply_and_divide",
+              "logical"]
 
 microcode = '''
 # SSE instructions

src/arch/x86/isa/insts/sse/logical.py

@@ -0,0 +1,76 @@
+# Copyright (c) 2007 The Hewlett-Packard Development Company
+# All rights reserved.
+#
+# Redistribution and use of this software in source and binary forms,
+# with or without modification, are permitted provided that the
+# following conditions are met:
+#
+# The software must be used only for Non-Commercial Use which means any
+# use which is NOT directed to receiving any direct monetary
+# compensation for, or commercial advantage from such use.  Illustrative
+# examples of non-commercial use are academic research, personal study,
+# teaching, education and corporate research & development.
+# Illustrative examples of commercial use are distributing products for
+# commercial advantage and providing services using the software for
+# commercial advantage.
+#
+# If you wish to use this software or functionality therein that may be
+# covered by patents for commercial use, please contact:
+#     Director of Intellectual Property Licensing
+#     Office of Strategy and Technology
+#     Hewlett-Packard Company
+#     1501 Page Mill Road
+#     Palo Alto, California  94304
+#
+# Redistributions of source code must retain the above copyright notice,
+# this list of conditions and the following disclaimer.  Redistributions
+# in binary form must reproduce the above copyright notice, this list of
+# conditions and the following disclaimer in the documentation and/or
+# other materials provided with the distribution.  Neither the name of
+# the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.  No right of
+# sublicense is granted herewith.  Derivatives of the software and
+# output created using the software may be prepared, but only for
+# Non-Commercial Uses.  Derivatives of the software may be shared with
+# others provided: (i) the others agree to abide by the list of
+# conditions herein which includes the Non-Commercial Use restrictions;
+# and (ii) such Derivatives of the software include the above copyright
+# notice to acknowledge the contribution from this software where
+# applicable, this list of conditions and the disclaimer below.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Gabe Black
+
+microcode = '''
+def macroop XORPD_R_R {
+    xorfp xmml, xmml, xmmlm
+    xorfp xmmh, xmmh, xmmhm
+};
+
+def macroop XORPD_R_M {
+    ldfp ufp1, seg, sib, disp
+    ldfp ufp2, seg, sib, "DISPLACEMENT + 8"
+    xorfp xmml, xmml, ufp1
+    xorfp xmmh, xmmh, ufp2
+};
+
+def macroop XORPD_R_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp
+    ldfp ufp2, seg, riprel, "DISPLACEMENT + 8"
+    xorfp xmml, xmml, ufp1
+    xorfp xmmh, xmmh, ufp2
+};
+'''

src/arch/x86/isa/microops/regop.isa

@@ -488,6 +488,9 @@ let {{
         code = 'DestReg = merge(SrcReg1, op2, dataSize)'
         else_code = 'DestReg=DestReg;'
 
+    class Xorfp(RegOp):
+        code = 'FpDestReg.uqw = FpSrcReg1.uqw ^ FpSrcReg2.uqw;'
+
     class Movfp(CondRegOp):
         code = 'FpDestReg.uqw = FpSrcReg2.uqw;'
         else_code = 'FpDestReg.uqw = FpDestReg.uqw;'