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📁 8051的IP,采用VHDL语言描述,支持intel的HEX格式,包括中断,定时器等.
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<H1>Intel 8051 Simulator</H1></CENTER>The following is a high level simulator 
for the Intel 8051 written in C++. The simulator allows a user to simulate 
simple programs written for the 8051. The simulator provides statistics on 
instructions executed, instructions executed per second, execution cycles 
required by the 8051, and average instructions per second for an 8051 executing 
the same program. 
<P>
<H2>Not Supported</H2>
<UL>
  <LI>input ports 
  <LI>interrupts 
  <LI>movx instructions </LI></UL>
<H2>Download</H2>
<H3>Version 1.3 Source File Listing</H3><A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051sim/src1.3/i8051.h">i8051.h</A><BR><A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051sim/src1.3/i8051.cc">i8051.cc</A><BR><A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051sim/src1.3/main.cc">main.cc</A><BR><A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051sim/src1.3/Makefile">Makefile</A><BR>
<P>
<H3>Changes in Version 1.3</H3>
<UL>
  <LI>Fix problem with ANL and XRL instructions. Code fix provided by Ann 
  Gordon-Ross. </LI></UL>
<P>
<H2>Test Files</H2>Test files can be found on the <A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051syn#test">Synopsys Synthesizable 
Intel 8051 Model</A> page. All test files except <B>testall</B> have been 
verified to function properly with this simulator. 
<P>
<H2>Instructions</H2>
<P>The simulator will continue executing the provided program until either the 
user hit Ctrl-C or the program completion condition is met. The program 
completion condition can be set by defining a macro PROGRAM_COMPLETION located 
in <B>i8051.h</B> to indicate the program completion condition, e.g., RAM[P0] == 
0x01. <BR>
<P>The program's output can be controlled through the macros PORTS, DEBUG, 
DEBUG_PC and DETAIL located in <B>i8051.h</B>. If PORTS is defined, anytime one 
of the output ports of the 8051 changes all ports will be printed out. If DEBUG 
is defined, a trace of all instructions executed by the simulator will be 
outputted to the output file specified by the user. If DEBUG is defined and 
DEBUG_PC is defined the PC for each instruction executed will be outputted to 
the output file. Finally, if DETAIL is defined, more information regarding each 
instruction will outputted to the output file. 
<P>NOTE: DEBUG_PC and DETAIL are only available in versions 1.2 and 1.1. <BR>
<P>To use the simulator, edit <B>i8051.h</B> and uncomment the PORTS, DEBUG, 
DEBUG_PC, and/or DETAIL macros to enable the respective output. Modify the macro 
PROGRAM_COMPLETION to the appropriate completion condition. If there is no 
program completion condition do not define PROGRAM_COMPLETION. Make the 
executable using the supplied <B>Makefile</B>. The program can be invoked by the 
following command <BR>
<P>
<UL><I>8051sim &lt; hexfile &gt; &lt; outfile &gt;</I></UL>
<P>
<H2>Previous Versions of Simulator</H2>
<P>An archive of previous versions of the simulator can be found <A 
href="http://www.cs.ucr.edu/~dalton/i8051/i8051sim/old_versions.html">here.</A> 
<P>
<H2>Problems And Comments</H2>
<P>Please direct any problems and comments to <A 
href="mailto:dalton@cs.ucr.edu">dalton@cs.ucr.edu</A>. We will respond to all 
inquiries as quick as possible. 
<P><A href="http://www.cs.ucr.edu/~dalton">Return to Dalton home page</A> 
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<P><IMG src="Dalton UCR.files/counter.gif"><BR><I>Last Updated 1/5/2001</I> 
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