📄 io.h
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<!doctype html public "-//W3C//DTD HTML 3.2//EN"><html><head><title>Linux/include/asm/io.h</title><meta http-equiv=Content-Type content="text/html; charset=gb2312"><base href="http://oldlinux.org/lxr/http/"></head><body bgcolor=white><div align=center> [<b><i>源代码浏览</i></b>] [<a href="diff/include/asm/io.h">区别标定</a>] [<a href="ident">标识符搜索</a>] [<a href="search">文本搜索</a>] [<a href="find">文件搜索</a>]</div><h1 align=center> <a href="http:/"> OldLinux</a> <a href="http:blurb.html"> 交叉引用</a><br> <a href="source/">Linux</a>/<a href="source/include/">include</a>/<a href="source/include/asm/">asm</a>/<a href="source/include/asm/io.h">io.h</a></h1><div align=center> <b>版本:</b> [<a href="source/include/asm-i386/io.h?v=1.0">1.0</a>] [<a href="source/include/asm-i386/io.h?v=0.99.11">0.99.11</a>] [<a href="source/include/asm-i386/io.h?v=0.99">0.99</a>] [<a href="source/include/asm-i386/io.h?v=0.97">0.97</a>] [<a href="source/include/asm-i386/io.h?v=0.96a">0.96a</a>] [<a href="source/include/asm-i386/io.h?v=0.95">0.95</a>] [<a href="source/include/asm-i386/io.h?v=0.12">0.12</a>] [<b><i>0.11</i></b>] [<a href="source/include/asm-i386/io.h?v=0.01">0.01</a>] <br> <b>体系结构:</b> [<b><i>i386</i></b>] <br></div><hr><pre> <a name=L1 href="source/include/asm/io.h#L1">1</a> #define <a href="ident?i=outb">outb</a>(value,port) \ <a name=L2 href="source/include/asm/io.h#L2">2</a> __asm__ (<i>"outb %%al,%%dx"</i>::<i>"a"</i> (value),<i>"d"</i> (port)) <a name=L3 href="source/include/asm/io.h#L3">3</a> <a name=L4 href="source/include/asm/io.h#L4">4</a> <a name=L5 href="source/include/asm/io.h#L5">5</a> #define <a href="ident?i=inb">inb</a>(port) ({ \ <a name=L6 href="source/include/asm/io.h#L6">6</a> unsigned char _v; \ <a name=L7 href="source/include/asm/io.h#L7">7</a> __asm__ volatile (<i>"inb %%dx,%%al"</i>:<i>"=a"</i> (_v):<i>"d"</i> (port)); \ <a name=L8 href="source/include/asm/io.h#L8">8</a> _v; \ <a name=L9 href="source/include/asm/io.h#L9">9</a> }) <a name=L10 href="source/include/asm/io.h#L10">10</a> <a name=L11 href="source/include/asm/io.h#L11">11</a> #define <a href="ident?i=outb_p">outb_p</a>(value,port) \ <a name=L12 href="source/include/asm/io.h#L12">12</a> __asm__ (<i>"outb %%al,%%dx\n"</i> \ <a name=L13 href="source/include/asm/io.h#L13">13</a> <i>"\tjmp 1f\n"</i> \ <a name=L14 href="source/include/asm/io.h#L14">14</a> <i>"1:\tjmp 1f\n"</i> \ <a name=L15 href="source/include/asm/io.h#L15">15</a> <i>"1:"</i>::<i>"a"</i> (value),<i>"d"</i> (port)) <a name=L16 href="source/include/asm/io.h#L16">16</a> <a name=L17 href="source/include/asm/io.h#L17">17</a> #define <a href="ident?i=inb_p">inb_p</a>(port) ({ \ <a name=L18 href="source/include/asm/io.h#L18">18</a> unsigned char _v; \ <a name=L19 href="source/include/asm/io.h#L19">19</a> __asm__ volatile (<i>"inb %%dx,%%al\n"</i> \ <a name=L20 href="source/include/asm/io.h#L20">20</a> <i>"\tjmp 1f\n"</i> \ <a name=L21 href="source/include/asm/io.h#L21">21</a> <i>"1:\tjmp 1f\n"</i> \ <a name=L22 href="source/include/asm/io.h#L22">22</a> <i>"1:"</i>:<i>"=a"</i> (_v):<i>"d"</i> (port)); \ <a name=L23 href="source/include/asm/io.h#L23">23</a> _v; \ <a name=L24 href="source/include/asm/io.h#L24">24</a> }) <a name=L25 href="source/include/asm/io.h#L25">25</a> </pre><hr><div align=center> [<b><i>源代码浏览</i></b>] [<a href="diff/include/asm/io.h">区别标定</a>] [<a href="ident">标识符搜索</a>] [<a href="search">文本搜索</a>] [<a href="find">文件搜索</a>] </div><hr>本网页由 <a href="http:blurb.html">LXR引擎</a> 自动生成.<br></html>⌨️ 快捷键说明
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