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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- Introduction --><HTML><HEAD><TITLE>Introduction</TITLE></HEAD><BODY BACKGROUND="spiral.gif" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#990099" ALINK="#FF0000"><TABLE WIDTH="98%"><TR><TD WIDTH=60 VALIGN=BOTTOM NOWRAP><IMG SRC="transp.gif" ALT="" WIDTH=60 HEIGHT=20></TD><TD><!-- Ab hier Seitentext: --><BIG><BR><P><STRONG><U>I. Introduction</U></STRONG></P><P><NOBR>ASEM-51</NOBR> is a two-pass macro assembler for the Intel<NOBR>MCS-51</NOBR> family of microcontrollers.<BR>It is running on the PC under <NOBR>MS-DOS</NOBR>, Windows and Linux.<BR>The DOS real-mode assembler ASEM.EXE requires only 256 kB of free DOS memoryand <NOBR>MS-DOS 3.0</NOBR> (or higher).<BR>The new protected-mode assembler ASEMX.EXE requires a 286 CPU (or better),and at least 512 kB of free XMS memory.<BR>The new Win32 console-mode assembler ASEMW.EXE requires a 386 CPU (or better)and <NOBR>Windows 9x</NOBR>, NT, 2000 or XP.<BR>The new Linux assembler asem requires a 386-based Linux system.<BR>The new HTML documentation set requires a 90 MHz Pentium (or better) and aweb browser.</P><P>The <NOBR>ASEM-51</NOBR> assembly language is a rich subset of the Intel standardthat guarantees maximum compatibility with existing 8051 assembler sources.<NOBR>ASEM-51</NOBR> can generate two sorts of object files: <NOBR>Intel-HEX</NOBR> format,which is directly accepted by most EPROM programmers, and absolute <NOBR>OMF-51</NOBR>format, which is required for many simulators, emulators and target debuggers.Thus <NOBR>ASEM-51</NOBR> is suitable for small and medium <NOBR>MCS-51</NOBR>-basedmicrocontroller projects in hobby, education and business. However,<NOBR>ASEM-51</NOBR> has been designed to process also very large programs!Its most important features are:</P><P><UL TYPE=DISC><LI>fast, compact, reliable, easy to use, and well-documented</LI><LI>easy installation, almost no configuration required</LI><LI>command line operation, batch and networking capability</LI><LI>fully year 2000 compliant</LI><LI>DOS (RM and PM), Win32 and Linux binaries available</LI><LI>Intel-compatible syntax</LI><LI>five location counters, one for each of the <NOBR>MCS-51</NOBR> address spaces</LI><LI>assembly-time evaluation of arithmetic and logical expressions</LI><LI>segment type checking for instruction operands</LI><LI>automatic code optimization of generic jumps and calls</LI><LI>macro processing (that <STRONG>really</STRONG> works)</LI><LI>nested include file processing</LI><LI>nested conditional assembly</LI><LI>absolute <NOBR>OMF-51</NOBR> module output (with debug information)</LI><LI><NOBR>Intel-HEX</NOBR> file output</LI><LI>hex-to-binary conversion utility</LI><LI>built-in symbols for 8051 special function registers (can be disabled)</LI><LI>direct support of more than seventy 8051 derivatives</LI><LI>support of user-defined 8051 derivatives</LI><LI>special support of the Philips 83C75x family</LI><LI>8051 register bank support</LI><LI>detailed assembler listing with symbol table or cross reference</LI><LI>further fancy printing facilities <IMG SRC="smile.gif" ALT="(smile)" WIDTH=15 HEIGHT=15></LI><LI>documentation in ASCII and HTML format</LI><LI>bootstrap program for testing on the <NOBR>MCS-51</NOBR> target board</LI><LI>support for easy integration into the popular Borland IDE</LI><LI>limited update service by the <A HREF="mailto:w.w.heinz@web.de">author</A></LI></UL></P><P>The <NOBR>ASEM-51</NOBR> software package has been developed with:</P><P><BLOCKQUOTE>Borland-Pascal mit Objekten 7.0 © Borland International 1992<BR>Delphi 2.0 Client/Server Suite © Borland International 1996<BR>FreePascal 1.0.6 © Florian Klämpfl 2002<BR></BLOCKQUOTE></P></BIG><!-- Seitentext Ende --><P><BR><BR><CENTER><TABLE WIDTH="70%"><TR><TH><A HREF="contents.htm"><IMG SRC="home.gif" ALT="[contents]" BORDER=0 WIDTH=32 HEIGHT=32></A></TH> <TH><A HREF="contents.htm"><IMG SRC="up.gif" ALT="[up]" BORDER=0 WIDTH=32 HEIGHT=32></A></TH> <TH><A HREF="foreword.htm"><IMG SRC="back.gif" ALT="[back]" BORDER=0 WIDTH=32 HEIGHT=32></A></TH> <TH><A HREF="getting.htm"><IMG SRC="next.gif" ALT="[next]" BORDER=0 WIDTH=32 HEIGHT=32></A></TH></TR></TABLE></CENTER></P></TD></TR></TABLE></BODY></HTML>⌨️ 快捷键说明
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