T h u m b - 2是对现有A R M架构的

一个非常大的增强。与现有A R M架构

相比，它可以在比较高的代码密度下

实现比较高的代码性能。除此之外，

T h u m b-2的一些新特性可以非常方便

的控制程序的执行流程，提供更好的代

码效率和代码密度。所有的这些特点都

将使得开发者在改进功耗和性能的同

时，在最终产品中实现更多的丰富

的特性，从而设计出更加有吸引力

的产品。-T humb- 2 existing ARM architecture is a very big strength. ARM compared with the existing structure, it can be relatively high code density to achieve relatively high performance of the code. In addition, T hum b-2 a number of new features can be very convenient for the implementation of process control procedures to provide better code efficiency and code density. All of these features will allow developers to improve the power and performance at the same time, in the final product to achieve more extensive features, be able to design more attractive products.