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.

---
 .../isa/insts/x87/load_constants/load_0_1_or_pi.py | 21 ++++++++++++++---
 .../isa/insts/x87/load_constants/load_logarithm.py | 27 ++++++++++++++++++----
 2 files changed, 41 insertions(+), 7 deletions(-)

(limited to 'src/arch/x86/isa/insts/x87/load_constants')

diff --git a/src/arch/x86/isa/insts/x87/load_constants/load_0_1_or_pi.py b/src/arch/x86/isa/insts/x87/load_constants/load_0_1_or_pi.py
index 2e63f2593..cb8947312 100644
--- a/src/arch/x86/isa/insts/x87/load_constants/load_0_1_or_pi.py
+++ b/src/arch/x86/isa/insts/x87/load_constants/load_0_1_or_pi.py
@@ -1,4 +1,5 @@
 # Copyright (c) 2007 The Hewlett-Packard Development Company
+# Copyright (c) 2013 Mark D. Hill and David A. Wood
 # All rights reserved.
 #
 # The license below extends only to copyright in the software and shall
@@ -34,9 +35,23 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Gabe Black
+#          Nilay Vaish
 
 microcode = '''
-# FLDZ
-# FLD1
-# FLDPI
+
+def macroop FLDZ {
+    limm ufp1, "double(0)"
+    movfp st(-1), ufp1, spm=-1
+};
+
+def macroop FLD1 {
+    limm ufp1, "double(1)"
+    movfp st(-1), ufp1, spm=-1
+};
+
+def macroop FLDPI {
+    limm ufp1, "double(3.14159265359)"
+    movfp st(-1), ufp1, spm=-1
+};
+
 '''
diff --git a/src/arch/x86/isa/insts/x87/load_constants/load_logarithm.py b/src/arch/x86/isa/insts/x87/load_constants/load_logarithm.py
index 939ab7543..7e71c4006 100644
--- a/src/arch/x86/isa/insts/x87/load_constants/load_logarithm.py
+++ b/src/arch/x86/isa/insts/x87/load_constants/load_logarithm.py
@@ -1,4 +1,5 @@
 # Copyright (c) 2007 The Hewlett-Packard Development Company
+# Copyright (c) 2013 Mark D. Hill and David A. Wood
 # All rights reserved.
 #
 # The license below extends only to copyright in the software and shall
@@ -34,10 +35,28 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Gabe Black
+#          Nilay Vaish
 
 microcode = '''
-# FLDL2E
-# FLDL2T
-# FLDLG2
-# FLDLN2
+
+def macroop FLDL2E {
+    limm ufp1, "double(1.44269504089)"
+    movfp st(-1), ufp1, spm=-1
+};
+
+def macroop FLDL2T {
+    limm ufp1, "double(3.32192809489)"
+    movfp st(-1), ufp1, spm=-1
+};
+
+def macroop FLDLG2 {
+    limm ufp1, "double(0.30102999566)"
+    movfp st(-1), ufp1, spm=-1
+};
+
+def macroop FLDLN2 {
+    limm ufp1, "double(0.69314718056)"
+    movfp st(-1), ufp1, spm=-1
+};
+
 '''
-- 
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