xlanchenustc edu cn http staff ustc edu cnxlanchen Slides: 25 Download presentation 嵌入式操作系统 陈香兰 xlanchen@ustc. edu. cn http: //staff. ustc. edu. cn/~xlanchen Spring 2008 中国科学技术大学计算机系 xlanchen@2008. 4. 16 Embedded Operating Systems 系统调用 xlanchen@2008. 4. 16 Embedded Operating Systems system_call()函数 xlanchen@2008. 4. 16 Embedded Operating Systems 12 SAVE_ALL Sys_write需要的参数 xlanchen@2008. 4. 16 Embedded Operating Systems 16 … xlanchen@2008. 4. 16 Embedded Operating Systems 21 l 比如下面一些系统调用的封装例程 xlanchen@2008. 4. 16 Embedded Operating Systems 22 其中write()系统调用宏展开的代码为: xlanchen@2008. 4. 16 Embedded Operating Systems 23 l 编译后生成的汇编代码为: xlanchen@2008. 4. 16 Embedded Operating Systems 24 系统调用的返回 l 参见中断中的返回 xlanchen@2008. 4. 16 Embedded Operating Systems 25 Mail.ustc.edu.nDong liu ustcUstc repegUstc searchLunc and ustcDong liu ustcDong liu ustcHttp //pelatihan tik.ung.ac.idHttp //mbs.meb.gov.tr/ http //www.alantercihleri.comHttp://teachertech.rice.edu/participants/louviere/newton/Naplan online test administration handbook for teachersHttp://dlib.nyu.edu/aco/Https://scratch.mit.edu/" title="" />Http://learn.genetics.utah.edu/content/addiction/Http://www.openclass.chc.edu.twScratch.mit.eduHttp://evolution.berkeley.edu -HttpscratchParabolic partial differential equationHttps//scratch.mit.eduHttp sinhvien hufiHttp //www.phys.hawaii.edu/ teb/optics/java/slitdiffr/Http://learn.genetics.utah.edu/content/addiction/002Dendro.cnre.vt.edu photosynthesis