?? 第四章 keil c51高級(jí)編程.htm
字號(hào):
lang=EN-US>8051硬件堆棧指針</SPAN></SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: Wingdings">l<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">向<SPAN
lang=EN-US>main( )函數(shù)交權(quán)</SPAN></SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoBodyTextFirstIndent>開發(fā)人員可修改以下數(shù)據(jù)從而對(duì)系統(tǒng)初始化</P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體"><SPAN
style="mso-spacerun: yes"> </SPAN>常數(shù)名</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><SPAN
style="mso-tab-count: 1">
</SPAN></SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體"><SPAN
style="mso-spacerun: yes"> </SPAN>意義</SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">IDATALEN<SPAN
style="mso-tab-count: 1">
</SPAN>待清內(nèi)部RAM長度</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">XDATA START<SPAN
style="mso-tab-count: 1">
</SPAN>指定待清外部RAM起始地址</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">XDATALEN<SPAN
style="mso-tab-count: 1">
</SPAN>待清外部RAM長度</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">IBPSTACK<SPAN
style="mso-tab-count: 1">
</SPAN>是否小模式重入堆棧指針需初始化標(biāo)志，1為需要。缺省為0<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">IBPSTACKTOP<SPAN
style="mso-tab-count: 1">
</SPAN>指定小模式重入堆棧頂部地址</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">XBPSTACK<SPAN
style="mso-tab-count: 1">
</SPAN>是否大模式重入堆棧指針需初始化標(biāo)志，缺省為0<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">XBPSTACKTOP<SPAN
style="mso-tab-count: 1">
</SPAN>指定大模式重入堆棧頂部地址</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PBPSTACK<SPAN
style="mso-tab-count: 1">
</SPAN>是否Compact重入堆棧指針，需初始化標(biāo)志，缺省為0<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PBPSTACKTOP<SPAN
style="mso-tab-count: 1">
</SPAN>指定Compact模式重入堆棧頂部地址</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PPAGEENABLE<SPAN
style="mso-tab-count: 1">
</SPAN>P2初始化允許開關(guān)</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PPAGE<SPAN
style="mso-tab-count: 2">
</SPAN>指定P2值</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PDATASTART<SPAN
style="mso-tab-count: 1">
</SPAN>待清外部RAM頁首址</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體">PDATALEN<SPAN
style="mso-tab-count: 1">
</SPAN>待清外部RAM頁長度</SPAN><SPAN lang=EN-US
style="FONT-SIZE: 12pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'"><O:P></O:P></SPAN></P>
<P class=MsoBodyTextFirstIndent>提示：如果要初始化<SPAN
lang=EN-US>P2作為緊湊模式高端地址，必須：PPAGEENAGLE＝1，PPAGE為P2值，例如指定某頁1000H－10FFH，則PPAGE＝10H，而且連接時(shí)必須如下：</SPAN></P>
<P class=MsoBodyTextFirstIndent><SPAN lang=EN-US>L51<input
modules> PDATA(1080H)，其中1080H是1000H－10FFH中的任一個(gè)值。</SPAN></P>
<P class=MsoBodyTextFirstIndent>以下是<SPAN
lang=EN-US>STARTUP.A51代碼片斷，紅色是經(jīng)常可能需要修改的地方：</SPAN></P>
<P class=MsoNormal
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;------------------------------------------------------------------------------<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<SPAN
style="mso-spacerun: yes"> </SPAN>This file is part of
the C51 Compiler package<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<SPAN
style="mso-spacerun: yes"> </SPAN>Copyright KEIL
ELEKTRONIK GmbH 1990<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;------------------------------------------------------------------------------<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<SPAN
style="mso-spacerun: yes"> </SPAN>STARTUP.A51:<SPAN
style="mso-spacerun: yes"> </SPAN>This code is executed
after processor reset.<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<SPAN
style="mso-spacerun: yes"> </SPAN>To translate this file
use A51 with the following invocation:<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<O:P></O:P></SPAN></P>
<P class=MsoNormal
style="TEXT-INDENT: 24pt; TEXT-ALIGN: left; tab-stops: 63.0pt 117.0pt"
align=left><SPAN lang=EN-US
style="FONT-SIZE: 9pt; FONT-FAMILY: 宋體; mso-hansi-font-family: 'Times New Roman'">;<SPAN
style="mso-spacerun: y?? 快捷鍵說明
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