x86: implement some of the x87 instructions

This patch implements ftan, fprem, fyl2x, fld* floating-point instructions.

1 files changed, 11 insertions, 1 deletions

diff --git a/src/arch/x86/isa/insts/x87/control/save_and_restore_x87_control_word.py b/src/arch/x86/isa/insts/x87/control/save_and_restore_x87_control_word.py
index 5657c8d47..af465f014 100644
--- a/src/arch/x86/isa/insts/x87/control/save_and_restore_x87_control_word.py
+++ b/src/arch/x86/isa/insts/x87/control/save_and_restore_x87_control_word.py
@@ -36,7 +36,17 @@
 # Authors: Gabe Black
 
 microcode = '''
-# FLDCW
+
+def macroop FLDCW_M {
+    ld t1, seg, sib, disp, dataSize=2
+    wrval fcw, t1
+};
+
+def macroop FLDCW_P {
+    ld t1, seg, sib, disp, dataSize=2
+    wrval fcw, t1
+};
+
 # FSTCW
 
 def macroop FNSTCW_M {