I\'ve ported my library x86Lib to mbed. It fully emulates the 8086 processor, but a few things I\'m still working on. Notable missing things are interrupts. Previously I used exceptions for interrupts, but exceptions aren\'t supported with the mbed compiler. It is also quite slow

Dependents:   x86Lib_Tester

Revision:
0:217a7931b41f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ops/strings.cpp	Sun Mar 04 08:15:47 2012 +0000
@@ -0,0 +1,92 @@
+/**
+Copyright (c) 2007 - 2009 Jordan "Earlz/hckr83" Earls  <http://www.Earlz.biz.tm>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+   
+THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+This file is part of the x86Lib project.
+**/
+#define X86LIB_BUILD
+#include <x86Lib.h>
+namespace x86Lib{
+using namespace std;
+
+
+
+void x86CPU::op16_movsb(){
+	WriteByte(cES,*regs16[DI],ReadByte(DS,*regs16[SI]));
+	SetIndex8();
+}
+
+void x86CPU::op16_movsw(){
+	WriteWord(cES,*regs16[DI],ReadWord(DS,*regs16[SI]));
+	SetIndex16();
+}
+
+void x86CPU::op16_cmpsb(){
+	string_compares=1;
+	Sub8(ReadByte(DS,*regs16[SI]),ReadByte(cES,*regs16[DI]));
+	SetIndex8();
+}
+
+void x86CPU::op16_cmpsw(){
+	string_compares=1;
+	Sub16(ReadWord(DS,*regs16[SI]),ReadWord(cES,*regs16[DI]));
+	SetIndex16();
+}
+
+void x86CPU::op16_lodsb(){
+	*regs8[AL]=ReadByte(DS,*regs16[SI]);
+	SetIndex8();
+}
+void x86CPU::op16_lodsw(){
+	*regs16[AX]=ReadWord(DS,*regs16[SI]);
+	SetIndex16();
+}
+
+void x86CPU::op16_scasb(){
+	string_compares=1;
+	Sub8(*regs8[AL],ReadByte(cES,*regs16[DI]));
+	SetIndex8();
+}
+void x86CPU::op16_scasw(){
+	string_compares=1;
+	Sub16(*regs16[AX],ReadWord(cES,*regs16[DI]));
+	SetIndex16();
+}
+void x86CPU::op16_stosb(){
+	WriteByte(ES,*regs16[DI],*regs8[AL]);
+	SetIndex8();
+}
+void x86CPU::op16_stosw(){
+	WriteWord(ES,*regs16[DI],*regs16[AX]);
+	SetIndex16();
+}
+
+
+
+};
+
+
+