From 5c940fec0aebcce5f81063f195220184918b377b Mon Sep 17 00:00:00 2001
From: Nilay Vaish <nilay@cs.wisc.edu>
Date: Mon, 11 Mar 2013 13:15:46 -0500
Subject: x86: implement some of the x87 instructions This patch implements
 ftan, fprem, fyl2x, fld* floating-point instructions.

---
 src/arch/x86/isa/microops/fpop.isa | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/arch/x86/isa/microops')

diff --git a/src/arch/x86/isa/microops/fpop.isa b/src/arch/x86/isa/microops/fpop.isa
index b9aceea09..d5a39817a 100644
--- a/src/arch/x86/isa/microops/fpop.isa
+++ b/src/arch/x86/isa/microops/fpop.isa
@@ -1,4 +1,5 @@
 // Copyright (c) 2007 The Hewlett-Packard Development Company
+// Copyright (c) 2012-2013 Mark D. Hill and David A. Wood
 // All rights reserved.
 //
 // The license below extends only to copyright in the software and shall
@@ -34,6 +35,7 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
 // Authors: Gabe Black
+//          Nilay Vaish
 
 //////////////////////////////////////////////////////////////////////////
 //
@@ -258,6 +260,9 @@ let {{
     class Sinfp(FpUnaryOp):
         code = 'FpDestReg = sin(FpSrcReg1);'
 
+    class Tanfp(FpUnaryOp):
+        code = 'FpDestReg = tan(FpSrcReg1);'
+
 
     # Conversion microops
     class ConvOp(FpBinaryOp):
@@ -305,6 +310,17 @@ let {{
     class subfp(FpBinaryOp):
         code = 'FpDestReg = FpSrcReg1 - FpSrcReg2;'
 
+    class Yl2xFp(FpBinaryOp):
+        code = '''
+            FpDestReg = FpSrcReg2 * (log(FpSrcReg1) / log(2));
+        '''
+
+    class PremFp(FpBinaryOp):
+        code = '''
+            FpDestReg = fmod(FpSrcReg1, FpSrcReg2);
+            DPRINTF(X86, "src1: %lf, src2: %lf, dest: %lf\\n", FpSrcReg1, FpSrcReg2, FpDestReg);
+        '''
+
     class Compfp(FpBinaryOp):
         def __init__(self, src1, src2, spm=0, setStatus=False, \
                 dataSize="env.dataSize"):
-- 
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