crt_core.c

来自「澳洲人写的Cortex,包括uC_IP协议栈」· C语言 代码 · 共 54 行

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<HTML><HEAD><TITLE>/home/asysweb/public_html/cortex/kernel/src/crt_core.c</TITLE></HEAD><BODY><pre><font color="#6920ac">/*************************************************************************/</font><font color="#6920ac">/*                                                                       */</font><font color="#6920ac">/*     Copyright (c) 1997-1999 Australian Real Time Embedded Systems     */</font><font color="#6920ac">/*                                                                       */</font><font color="#6920ac">/* PROPRIETARY RIGHTS of Australian Real Time Embedded Systems           */</font><font color="#6920ac">/* are involved in the subject matter of this material. All reproduction,*/</font><font color="#6920ac">/* manufacturing, use, and sales rights pertaining to this subject matter*/</font><font color="#6920ac">/* are governed by the license agreement. The recipient of this software */</font><font color="#6920ac">/* implicitly accepts the terms of the license.                          */</font><font color="#6920ac">/*                                                                       */</font><font color="#6920ac">/*************************************************************************/</font><b><font color='DarkGreen'>#include</font></b> <a href="crt_defs.h.FIND-INC"><font color="blue">"crt_defs.h"</font></a><b><font color='DarkGreen'>#if</font></b><font color="maroon"> !defined(CRTX_FLOATING_GET_MSB_MASK_EXISTS) || CRTX_USE_FLOATING_GET_MSB_MASK==0 </font><font size="+1"><i>crtx_Byte_t</i> <b><font color="azure1"><a name="crtx_GetMsbMask">crtx_GetMsbMask</a></font></b>(<i>crtx_Unsigned_t</i> Mask_a){</font><font color="#6920ac">/********************* *  LOCAL VARIABLES  * *********************/</font>    <i>crtx_Byte_t</i> Msb;    <font color="#6920ac">/* number of the most significant bit which is set */</font><font color="#6920ac">/********************* *  PROCEDURE LOGIC  * *********************/</font>    <b>if</b> ((Msb = crtx_MSB_g[Mask_a&gt;&gt;24]) != 0xff)        Msb =  24 + Msb;    <b>else</b> <b>if</b> ((Msb = crtx_MSB_g[Mask_a&gt;&gt;16]) != 0xff)        Msb = 16 + Msb;    <b>else</b> <b>if</b> ((Msb = crtx_MSB_g[Mask_a&gt;&gt;8]) != 0xff)        Msb = 8 + Msb;    <b>else</b>        Msb = crtx_MSB_g[Mask_a];    <b>return</b> Msb;<font color="#6920ac">/************************ *  EXCEPTION HANDLING  * ************************/</font>    <font color="#6920ac">/* None */</font>}<b><font color='DarkGreen'>#endif</font></b><font color="maroon"> <font color="#6920ac">/* CRTX_USE_FLOATING_GET_MSB_MASK == 0 */</font></font></pre></BODY></HTML>

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本页面展示了「澳洲人写的Cortex,包括uC_IP协议栈」中的 crt_core.c 源码文件，采用 C语言 编程语言编写，共 54 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

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