BACKGROUND Embodiments of the invention relate to the field of electronic systems and power management. More particularly, embodiments of the invention relate to a method and apparatus for a zero voltage processor sleep state. As the trend toward adv…

BACKGROUND OF THE INVENTION Mobile devices, such as but not limited to personal data appliances, cellular phones, radios, pagers, lap top computers, and the like are required to operate for relatively long periods before being recharged. These mobile…

BACKGROUND As processing resources have increased, demands to run multiple software programs and operating systems on a single microprocessor have also increased. To meet these demands virtual environments have been developed to allocate a single com…

BACKGROUND Malicious code, known as malware, which includes viruses, worms, adware, etc., may attack core components of the operating system to compromise key applications, including critical applications that operate in the operating system kernel,…

A processor's performance state may be adjusted based on processor temperature. On transitions to a lower performance state due to the processor getting hotter, the processor's frequency is reduced prior to reducing the processor voltage. Thus, the p…

FIELD OF THE INVENTION The present invention is related to computing systems, and more particularly to a system and method for adjusting to changes in processor performance. BACKGROUND INFORMATION Designers of mobile computing platforms are faced wit…

1.符号表 执行一个函数会引入一个用于函数的局部变量的新符号表. 更确切地说, 函数中的所有的赋值都是将值存储在局部符号表: 而变量引用首先查找局部符号表, 然后是上层函数的局部符号表, 然后是全局符号表, 最后是内置名字表. 因此,在函数内部全局变量不能直接赋值(除非在一个global语句中命名),虽然可以引用它们. 2.传值 函数调用的实际参数在函数被调用时引入被调函数的局部符号表: 因此, 参数的传递使用传值调用 (这里的值始终是对象的引用,不是对象的值). 一个函数调用另一个函数时, 会…

实际开始看这一章节的时候,觉得都不想看了,因为每种语言都会有控制流,感觉好像我不看就会了似的.快速预览的时候,发现了原来还包含了对函数定义的一些描述,重点讲了3种函数形参的定义方法,章节的最后讲述了PEP8的一些重要的规范,在学习的过程中还是学到了些知识. 2.1  if 语句 if语句就不多说了,经常跟else if .. 和 else ..一起使用,如下所示: >>> x = int(raw_input("Please enter an integer: "))…

由于tomcat6的配置文件如下: <Connector port="80" protocol="org.apache.coyote.http11.Http11NioProtocol" connectionTimeout="20000" URIEncoding="UTF-8" useBodyEncodingForURI="true" enableLookups="false" re…

ETM:embedded Trace Macrocell PTM:Program Flow Trace Macrocell ETM-A7 macrocell提供Cortex-A7 MPcore的instruction和data的trace. 再与Cortex-A7的连接过程中,需要连接ETM interface和PMU 接口. ETM interface包括:instruction address,branch,exception,data address,data value等. ETM内部实…