From b34b507fd848db1ddf59fc024790f93ef5f4ad09 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Mon, 17 Aug 2009 18:40:40 -0700
Subject: [PATCH] X86: Implement the floating point media instructions.

---
 src/arch/x86/isa/decoder/two_byte_opcodes.isa | 10 +--
 .../floating_point/arithmetic/division.py     | 63 +++++++++++++++++--
 2 files changed, 62 insertions(+), 11 deletions(-)

diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index aedf6bcfa..eccfee1b3 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -510,7 +510,7 @@
                     0x3: cvtdq2ps_Vo_Wo();
                     0x4: Inst::SUBPS(Vo,Wo);
                     0x5: Inst::MINPS(Vo,Wo);
-                    0x6: divps_Vo_Wo();
+                    0x6: Inst::DIVPS(Vo,Wo);
                     0x7: Inst::MAXPS(Vo,Wo);
                 }
                 // repe (0xF3)
@@ -521,7 +521,7 @@
                     0x3: cvttps2dq_Vo_Wo();
                     0x4: Inst::SUBSS(Vd,Wd);
                     0x5: Inst::MINSS(Vd,Wd);
-                    0x6: divss_Vd_Wd();
+                    0x6: Inst::DIVSS(Vd,Wd);
                     0x7: Inst::MAXSS(Vd,Wd);
                 }
                 // operand size (0x66)
@@ -532,7 +532,7 @@
                     0x3: cvtps2dq_Vo_Wo();
                     0x4: Inst::SUBPD(Vo,Wo);
                     0x5: Inst::MINPD(Vo,Wo);
-                    0x6: divpd_Vo_Wo();
+                    0x6: Inst::DIVPD(Vo,Wo);
                     0x7: Inst::MAXPD(Vo,Wo);
                 }
                 // repne (0xF2)
@@ -917,7 +917,7 @@
                         0x3: cvtdq2ps_Vo_Wo();
                         0x4: Inst::SUBPS(Vo,Wo);
                         0x5: Inst::MINPS(Vo,Wo);
-                        0x6: divps_Vo_Wo();
+                        0x6: Inst::DIVPS(Vo,Wo);
                     }
                     // repe (0xF3)
                     0x4: decode OPCODE_OP_BOTTOM3 {
@@ -929,7 +929,7 @@
                         0x2: cmpccpd_Vo_Wo_Ib();
                         0x4: Inst::SUBPD(Vo,Wo);
                         0x5: Inst::MINPD(Vo,Wo);
-                        0x6: divpd_Vo_Wo();
+                        0x6: Inst::DIVPD(Vo,Wo);
                         default: Inst::UD2();
                     }
                     // repne (0xF2)
diff --git a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/division.py b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/division.py
index 0f4b14a81..3e565278c 100644
--- a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/division.py
+++ b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/division.py
@@ -54,22 +54,73 @@
 # Authors: Gabe Black
 
 microcode = '''
-# DIVPS
-# DIVPD
-# DIVSS
+def macroop DIVSS_XMM_XMM {
+    mdivf xmml, xmml, xmmlm, size=4, ext=1
+};
+
+def macroop DIVSS_XMM_M {
+    ldfp ufp1, seg, sib, disp, dataSize=8
+    mdivf xmml, xmml, ufp1, size=4, ext=1
+};
+
+def macroop DIVSS_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, disp, dataSize=8
+    mdivf xmml, xmml, ufp1, size=4, ext=1
+};
 
 def macroop DIVSD_XMM_XMM {
-    divfp xmml, xmml, xmmlm
+    mdivf xmml, xmml, xmmlm, size=8, ext=1
 };
 
 def macroop DIVSD_XMM_M {
     ldfp ufp1, seg, sib, disp, dataSize=8
-    divfp xmml, xmml, ufp1
+    mdivf xmml, xmml, ufp1, size=8, ext=1
 };
 
 def macroop DIVSD_XMM_P {
     rdip t7
     ldfp ufp1, seg, riprel, disp, dataSize=8
-    divfp xmml, xmml, ufp1
+    mdivf xmml, xmml, ufp1, size=8, ext=1
+};
+
+def macroop DIVPS_XMM_XMM {
+    mdivf xmml, xmml, xmmlm, size=4, ext=0
+    mdivf xmmh, xmmh, xmmhm, size=4, ext=0
+};
+
+def macroop DIVPS_XMM_M {
+    ldfp ufp1, seg, sib, "DISPLACEMENT", dataSize=8
+    ldfp ufp2, seg, sib, "DISPLACEMENT + 8", dataSize=8
+    mdivf xmml, xmml, ufp1, size=4, ext=0
+    mdivf xmmh, xmmh, ufp2, size=4, ext=0
+};
+
+def macroop DIVPS_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, "DISPLACEMENT", dataSize=8
+    ldfp ufp2, seg, riprel, "DISPLACEMENT + 8", dataSize=8
+    mdivf xmml, xmml, ufp1, size=4, ext=0
+    mdivf xmmh, xmmh, ufp2, size=4, ext=0
+};
+
+def macroop DIVPD_XMM_XMM {
+    mdivf xmml, xmml, xmmlm, size=8, ext=0
+    mdivf xmmh, xmmh, xmmhm, size=8, ext=0
+};
+
+def macroop DIVPD_XMM_M {
+    ldfp ufp1, seg, sib, "DISPLACEMENT", dataSize=8
+    ldfp ufp2, seg, sib, "DISPLACEMENT + 8", dataSize=8
+    mdivf xmml, xmml, ufp1, size=8, ext=0
+    mdivf xmmh, xmmh, ufp2, size=8, ext=0
+};
+
+def macroop DIVPD_XMM_P {
+    rdip t7
+    ldfp ufp1, seg, riprel, "DISPLACEMENT", dataSize=8
+    ldfp ufp2, seg, riprel, "DISPLACEMENT + 8", dataSize=8
+    mdivf xmml, xmml, ufp1, size=8, ext=0
+    mdivf xmmh, xmmh, ufp2, size=8, ext=0
 };
 '''