From 5c32422162f11f11ac68cb5ba39bf5d48dce010d Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Thu, 18 Oct 2007 22:42:53 -0700
Subject: [PATCH] X86: Implement the string IO instructions, ins and outs.

--HG--
extra : convert_revision : b021e70390d289b22a8e693cd8a99d6e7bd7d2b4
---
 src/arch/x86/isa/decoder/one_byte_opcodes.isa |  8 +-
 .../general_purpose/input_output/string_io.py | 96 ++++++++++++++-----
 2 files changed, 77 insertions(+), 27 deletions(-)

diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
index 473dd1eeb..9723b1d60 100644
--- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa
@@ -209,10 +209,10 @@
             0x1: IMUL(Gv,Ev,Iz);
             0x2: PUSH(Ib);
             0x3: IMUL(Gv,Ev,Ib);
-            0x4: WarnUnimpl::ins_Yb_Dx();
-            0x5: WarnUnimpl::ins_Yz_Dx();
-            0x6: WarnUnimpl::outs_Dx_Xb();
-            0x7: WarnUnimpl::outs_Dx_Xz();
+            0x4: StringInst::INS(Yb,rD);
+            0x5: StringInst::INS(Yz,rD);
+            0x6: StringInst::OUTS(rD,Xb);
+            0x7: StringInst::OUTS(rD,Xz);
         }
         0x0E: decode OPCODE_OP_BOTTOM3 {
             0x0: JO(Jb);
diff --git a/src/arch/x86/isa/insts/general_purpose/input_output/string_io.py b/src/arch/x86/isa/insts/general_purpose/input_output/string_io.py
index a35ba772f..a8acbbc39 100644
--- a/src/arch/x86/isa/insts/general_purpose/input_output/string_io.py
+++ b/src/arch/x86/isa/insts/general_purpose/input_output/string_io.py
@@ -53,26 +53,76 @@
 #
 # Authors: Gabe Black
 
-microcode = ""
-#let {{
-#    class INS(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class INSB(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class INSW(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class INSD(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class INSQ(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class OUTS(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class OUTSB(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class OUTSW(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class OUTSD(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#    class OUTSQ(Inst):
-#	"GenFault ${new UnimpInstFault}"
-#}};
+microcode = '''
+def macroop INS_M_R {
+    # Find the constant we need to either add or subtract from rdi
+    ruflag t0, 10
+    movi t3, t3, dsz, flags=(CEZF,), dataSize=asz
+    subi t4, t0, dsz, dataSize=asz
+    mov t3, t3, t4, flags=(nCEZF,), dataSize=asz
+
+    limm t1, "IntAddrPrefixIO"
+    zext t2, reg, 16, dataSize=2
+
+    ld t6, intseg, [1, t1, t2], addressSize=8
+    st t6, es, [1, t0, rdi]
+
+    add rdi, rdi, t3, dataSize=asz
+};
+
+def macroop INS_E_M_R {
+    # Find the constant we need to either add or subtract from rdi
+    ruflag t0, 10
+    movi t3, t3, dsz, flags=(CEZF,), dataSize=asz
+    subi t4, t0, dsz, dataSize=asz
+    mov t3, t3, t4, flags=(nCEZF,), dataSize=asz
+
+    limm t1, "IntAddrPrefixIO"
+    zext t2, reg, 16, dataSize=2
+
+topOfLoop:
+    ld t6, intseg, [1, t1, t2], addressSize=8
+    st t6, es, [1, t0, rdi]
+
+    subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
+    add rdi, rdi, t3, dataSize=asz
+    bri t0, label("topOfLoop"), flags=(nCEZF,)
+    fault "NoFault"
+};
+
+def macroop OUTS_R_M {
+    # Find the constant we need to either add or subtract from rdi
+    ruflag t0, 10
+    movi t3, t3, dsz, flags=(CEZF,), dataSize=asz
+    subi t4, t0, dsz, dataSize=asz
+    mov t3, t3, t4, flags=(nCEZF,), dataSize=asz
+
+    limm t1, "IntAddrPrefixIO"
+    zext t2, reg, 16, dataSize=2
+
+    ld t6, ds, [1, t0, rsi]
+    st t6, intseg, [1, t1, t2], addressSize=8
+
+    add rsi, rsi, t3, dataSize=asz
+};
+
+def macroop OUTS_E_R_M {
+    # Find the constant we need to either add or subtract from rdi
+    ruflag t0, 10
+    movi t3, t3, dsz, flags=(CEZF,), dataSize=asz
+    subi t4, t0, dsz, dataSize=asz
+    mov t3, t3, t4, flags=(nCEZF,), dataSize=asz
+
+    limm t1, "IntAddrPrefixIO"
+    zext t2, reg, 16, dataSize=2
+
+topOfLoop:
+    ld t6, ds, [1, t0, rsi]
+    st t6, intseg, [1, t1, t2], addressSize=8
+
+    subi rcx, rcx, 1, flags=(EZF,), dataSize=asz
+    add rsi, rsi, t3, dataSize=asz
+    bri t0, label("topOfLoop"), flags=(nCEZF,)
+    fault "NoFault"
+};
+'''
-- 
2.30.2