本文基于ARM 9tdmi内核，从指令调整、寄存器分配、条件分支和循环结构等方面对汇编代码的优化方法进行了详细的论述。
This article gives a detail discussion on the assembled code optimization from instruction arrangement, register division, condition selection branch and cycle structure based on the core of ARM9TDMI.
汇编语言依序执行算术指令，而跳转指令可以通过改变程序计数器的值来执行条件语句和循环语句。
Assembly language instruction sequence perform arithmetic, and jump instruction by changing the program counter value to execute the conditional statement and circular statement.
汇编语言依序执行算术指令，而跳转指令可以通过改变程序计数器的值来执行条件语句和循环语句。
Assembly language instruction sequence perform arithmetic, and jump instruction by changing the program counter value to execute the conditional statement and circular statement.
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