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📁 一份51的编译程序,dos版本的. 英文名字MCS-51 Microcontroller Family Macro Assembler
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<P><H2>Version 1.3, &nbsp; Dec 31, 2002:</H2></P>

<P><BIG>
The following changes have been made to the <NOBR>ASEM-51</NOBR>
package, since <NOBR><A HREF="#BETA3">version 1.3b3</A></NOBR>
<NOBR>(V1.3 Beta 3):</NOBR>
</BIG></P>

<P><BIG><BR><STRONG><U>I. Bug Fixes</U></STRONG></BIG></P>

<P><BIG>
<NOBR>ASEM V1.3b3</NOBR> flagged the following instructions<BR>
<BLOCKQUOTE><CODE>
ADD A, direct<BR>
ADDC A, direct<BR>
SUBB A, direct<BR>
ANL A, direct<BR>
ORL A, direct<BR>
XRL A, direct<BR>
MOV A, direct<BR>
XCH A, direct
</CODE></BLOCKQUOTE>
with the error message <NOBR><CODE>@@@@@ illegal operand @@@@@</CODE></NOBR>,
if the direct expression started with a '('.
The bug is fixed in <NOBR>ASEM V1.3</NOBR>.
</BIG></P>

<P><BIG>
When <NOBR>asem 1.3b3</NOBR> tried to write to a busy character device
under Linux, it aborted with an unspecific error message, <NOBR>e.g.</NOBR>
<BLOCKQUOTE>
<CODE>@@@@@ fatal I/O error 16: /dev/lp0 @@@@@</CODE>
</BLOCKQUOTE>
This is fixed in <NOBR>V1.3</NOBR>.
The new runtime error message is looking like
<BLOCKQUOTE>
<CODE>@@@@@ device or resource busy: /dev/lp0 @@@@@</CODE>
</BLOCKQUOTE>
</BIG></P>

<P><BIG><BR><STRONG><U>II. Support of 8051 Derivatives</U></STRONG></BIG></P>

<P><BIG>
With this version, new and updated processor definition files are provided:
</BIG></P>

<P>
<TABLE BORDER CELLPADDING=8>
<TR><TH>File</TH><TH>Status</TH><TH>Manufacturer</TH><TH>Derivatives covered</TH></TR>
<TR><TD ALIGN=RIGHT>C505.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C505-2R, C505-L</TD></TR>
<TR><TD ALIGN=RIGHT>C505C.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C505C-2R, C505C-L</TD></TR>
<TR><TD ALIGN=RIGHT>C505A.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C505A-4E, C505A-L</TD></TR>
<TR><TD ALIGN=RIGHT>C505CA.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C505CA-4E, C505CA-L</TD></TR>
<TR><TD ALIGN=RIGHT>C505L.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C505L</TD></TR>
<TR><TD ALIGN=RIGHT>C508.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C508-4R, C508-4E</TD></TR>
<TR><TD ALIGN=RIGHT>C868.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Infineon</TD>
    <TD>C868-1R, C868-1S</TD></TR>
<TR><TD ALIGN=RIGHT>80C32X2.MCU</TD><TD ALIGN=CENTER NOWRAP>n</TD><TD>Philips</TD>
    <TD>80C31X2, 80C32X2, 80C51X2, 80C52X2, 80C54X2, 80C58X2, 87C51X2,
        87C52X2, 87C54X2, 87C58X2, 89C51X2, 89C52X2, 89C54X2, 89C58X2</TD></TR>
</TABLE>
<BR>
<CENTER>Status: &nbsp; n=new, r=renamed, m=modified, c=commented</CENTER>
</P>

<P><BIG>
<STRONG>Credits:</STRONG> &nbsp;
<NOBR>Michael R.</NOBR> has sent me <NOBR>80C32X2.MCU</NOBR>.
</BIG></P>


<P><A NAME="BETA3">&nbsp;</A></P>

<P><H2>Version 1.3b3, &nbsp; June 25, 2002:</H2></P>

<P><BIG>
These are the longest release notes I have ever written for an
<NOBR>ASEM-51</NOBR> version. It seems that I had always some spare time
to support, maintain, change, extend, improve and port it over and over
for many years, but never to publish an official new release.<BR>
The release notes would become even more lengthy (and boring), if I only
tried to explain the reasons I still remember.
Let's say, <NOBR>ASEM-51</NOBR> and its author simply are victims of
<NOBR>circumstances!&nbsp;&nbsp;&nbsp;&nbsp;
<IMG SRC="smile.gif" ALT="(smile)" WIDTH=15 HEIGHT=15></NOBR>
</BIG></P>

<P>
<BIG>
<OL TYPE=I>
<LI><A HREF="releas31.htm">New Features</A></LI>
<OL TYPE=1>
<LI><A HREF="relea311.htm">Host Platforms</A></LI>
<LI><A HREF="relea312.htm">Assembler</A></LI>
<LI><A HREF="relea313.htm">MS-DOS Implementation</A></LI>
<LI><A HREF="relea314.htm">Support of 8051 Derivatives</A></LI>
<LI><A HREF="relea315.htm">Documentation</A></LI>
</OL>
<BR>
<LI><A HREF="releas32.htm">Bug Fixes</A></LI>
</OL>
</BIG>
</P>

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