2013年7月26日

arm b 指令
摘要： B, Branch,BL, Branch with Link,BX, Branch and exchange instruction set,BLX, Branch with Link and exchange instruction set,BXJ, Branch and change to Jazelle state.jazelle 不知道是什么意思："jazz-ell". an adjective. calling someone a jazelle means that you are literally calling someone a cute asian/a 阅读全文
posted @ 2013-07-26 23:35 kwingmei 阅读(308) 评论(0) 推荐(0)
makefile tips
摘要： shell#!/bin/sh -e选项-e表示一个命令在执行后返回一个非0状态值时，就退出$(@:_config=)：$@是make的自动变量，标识规则的目标名if $@=smdk6410_config$(@:_config=) then $@=smdk6410${parameter%%word} Remove matching suffix pattern. The word is expanded to produce a pattern just as in pathname expansion. If the pattern matches a trailing portion of 阅读全文
posted @ 2013-07-26 19:02 kwingmei 阅读(196) 评论(0) 推荐(0)

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