cpu_basic_new
华硕B85M-G主板说明书C8146

B85M-G
用戶手冊
Motherboard
C8146
第一版(V1) 2013 年 5 月
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Intel Z590 系列 BIOS 用户指南说明书

Memory Configuration(高级内存设置) ................................................................ - Over Voltage Configuration(高级电压设置) ......................................................... - ADVANCED(高级模式)................................................................................. - Advance(高级) ..................................................................................................... - -
进入 BIOS ...................................................................................................................- BIOS 设置程序主界面..................................................................................................- BIOS 控制方式 ............................................................................................................- BIOS 功能键................................................................................................................ - BIOS 语言设置 ............................................................................................................- 启动项设置......................................................................................................- XMP 设置........................................................................................................ - -
CPU相关知识介绍(整理)

CPU相关常识介绍一、决定CPU性能技术指标每个买CPU的消费者,第一时间要过问的就是它的性能,对于一个CPU 来说,性能是否强大是它能否在市场上保存下去的第一要素,那么CPU的性能是由哪些因素决定的咧?下面就列出影响CPU性能的主要技术指标:1、主频,也就是CPU的时钟频率,简单地说也就是CPU的工作频率。
一般说来,一个时钟周期完成的指令数是固定的,所以主频越高,CPU的速度也就越快了。
不外由于各种CPU的内部布局也不尽不异,所以并不克不及完全用主频来概括CPU的性能。
至于外频就是系统总线的工作频率;而倍频那么是指CPU外频与主频相差的倍数。
用公式暗示就是:主频=外频×倍频。
2、内存总线速度或者叫系统总线速度,一般等同于CPU的外频。
内存总线的速度对整个系统性能来说很重要,由于内存速度的开展滞后于CPU的开展速度,为了缓解内存带来的瓶颈,所以呈现了二级缓存,来协调两者之间的差别,而内存总线速度就是指CPU与二级(L2)高速缓存和内存之间的工作频率。
3、L1高速缓存,也就是我们经常说的一级高速缓存。
在CPU里面内置了高速缓存可以提高CPU的运行效率。
内置的L1高速缓存的容量和布局对CPU的性能影响较大,不外高速缓冲存储器均由静态RAM组成,布局较复杂,在CPU管芯面积不克不及太大的情况下,L1级高速缓存的容量不成能做得太大。
采用回写(WriteBack)布局的高速缓存。
它对读和写操作均有可提供缓存。
而采用写通(Write-through)布局的高速缓存,仅对读操作有效。
在486以上的计算机中底子采用了回写式高速缓存。
在目前流行的处置器中,奔腾Ⅲ和Celeron处置器拥有32KB的L1高速缓存,奔腾4为8KB,而AMD的Duron和Athlon处置器的L1高速缓存高达128KB。
4、L2高速缓存,指CPU第二层的高速缓存,第一个采用L2高速缓存的是奔腾Pro处置器,它的L2高速缓存和CPU运行在不异频率下的,但成本昂贵,市场生命很短,所以其后奔腾II的L2高速缓存运行在相当于CPU频率一半下的。
通用汽车模流分析规范_new

19
网格统计
纵横比的定义: 纵横比=L/h
h L
纵横比影响分析的精度,其值必 须小于10:1。
Unmatched Matched
Fusion网格统计窗框
相互百分比
匹配百分比
只有Fusion模型才有百分比的要求,
其数值反映了上下面流动的一致性,
填充分析要求>85%,翘曲分析要求
4
Autodesk Moldflow Insight产品分为三 个产品包,包括:
A. Basic, 基本包 ,功能限于填充分 析
B. Performance ,应用包,基本应 用分析
C. Advance,高级 包,包括注塑成型 各类工艺的模拟分 析
最低要求使用 Performance包
Moldflow产品包
Circuit coolant temperature Temperature, part Deflection
判断标准
颜色灰色(Short shot) 填充结束时刻温度降低20度,通过速度计算出加 速度,加速度大于27。 浇口附近的剪切速率&剪切应力>材料许用值,或浇 口与附近产品表面的剪切速率&剪切应力相差很大
4、工艺参数信息 moldflow工艺参数的设置必须显示在分析报告中
11
Moldflow求解器精度控制
Moldflow求解器的精度控制指标——网格质量 1、什么是网格?
产品 照片 网格 像素
Moldflow采用的网格划分方式
(中面网格Midplane)
2、什么是网格质量? 网格质量就是产品模拟的逼真程度。
Autodesk® Moldflow® Insight
Cpusets学习

Cpusets学习1. cpusets1.1 什么是cpusetscpusets基本功能是限制某⼀组进程只运⾏在某些cpu和内存节点上,举个简单例⼦:系统中有4个进程,4个内存节点,4个cpu.利⽤cpuset可以让第1,2个进程只运⾏在第1,2颗cpu上并且只在第1,2个内存节点上分配内存。
cpuset是基于cgroup⼦系统实现(关于cgroup⼦系统可以参考内核⽂档Documentation/cgroups/cgroups.txt.)使⽤cpuset上述功能可以让系统管理员动态调整进程运⾏所在的cpu和内存节点。
cpusets是cgroup⽂件系统中的⼀个⼦系统。
1.2 为什么需要cpusets在⼤型的计算机系统中,有多颗cpu,若⼲内存节点。
尤其在NUMA架构下,cpu访问不同内存节点的速度不同,这种情况增加了进程调度和进程内存分配⽬标node管理的难度。
⽐较新的⼩型系统使⽤linux内核⾃带的调度功能和内存管理⽅案就能得到很好表现,但是在⽐较⼤的系统中如果精⼼调整不同应⽤所在的cpu和内存节点会⼤⼤提⾼性能表现。
(NUMA架构)cpuset在以下场景会更有价值:1. 对于跑了很多相同的应⽤实例的⼤型web server2. 对于跑了不同应⽤的⼤型server(例如:同时跑了web server相关应⽤,⼜跑了数据库应⽤)3. ⼤型NUMA系统cpuset必须允许动态调整,并且不影其他不相关cpuset中运⾏的进程。
⽐如:可以将某个cpu动态的加⼊到某个cpuset,可以从某个cpuset中将某个cpu移除,可以将进程加⼊到cpuset,也可以将某个进程从⼀个cpuset迁移到另⼀个cpuset。
内核的cpuset补丁,提供了最基本的实现上述功能的机制,在实现上最⼤限度使⽤原有的cpu和内存节点分配机制,尽可能避免影响现有的调度器,以及内存分配核⼼功能的代码。
1.3 cpusets是如何实现的cpusets整体为层级树结构。
三菱電機可程式控制器 MELSEC iQ-F系列 FX5S-30M□ □, FX5S-40M□ □,

©Mitsubishi ElectricCorporation三菱電機可程式控制器MELSEC iQ-F系列FX5S-30M□/□, FX5S-40M□/□,FX5S-60M□/□©Mitsubishi ElectricCorporation2目次目次1.特點………………………P32.實現IoT………………………P73.國際標準………………………P144.規格………………………P155.產品陣容………………………P21©Mitsubishi Electric Corporation3輕鬆上手,簡單易用紧凑型CPU模組,內藏Ethernet端口。
具有高性價比的MELSEC iQ-F系列不僅簡單易用,基本性能強大,而且機型選擇更簡單、利用更輕鬆。
產品陣容CPU模組繼電器輸出R 電晶體輸出(NPN型)T1電晶體輸出(PNP型)T21.特點FX5-SDCD擴充版SD記憶卡模組(FX5S專用)FX5S-30MT/ESS AC DC T2FX5S-30MT/ES AC DC T1FX5S-30MR/ES AC DC R AC電源AC DC輸入(NPN型/PNP型)DCFX5S-60MT/ESS AC DC T2FX5S-60MT/ES AC DC T1FX5S-60MR/ES AC DC R FX5S-40MT/ESS AC DC T2FX5S-40MT/ES AC DC T1FX5S-40MR/ES AC DC R©Mitsubishi Electric Corporation4便捷功能!指令處理時間(LD、MOV指令)84ns48k步無需電池I/O點數最大80點定位4軸(100kHz)高速計數器8ch 內藏Ethernet,支持CC-Link IE現場網路Basic,強化了與三菱電機FA設備和各合作廠商產品的聯動。
此外,還內藏了可用於編程的USB(Mini-B)連接器。
计算机操作系统英文论文

Introduction to the operating system of the new technology Abstract:the Operating System (Operating System, referred to as OS) is an important part of a computer System is an important part of the System software, it is responsible for managing the hardware and software resources of the computer System and the working process of the entire computer coordination between System components, systems and between users and the relationship between the user and the user. With the appearance of new technology of the operating system functions on the rise. Operating system as a standard suite must satisfy the needs of users as much as possible, so the system is expanding, function of increasing, and gradually formed from the development tools to system tools and applications of a platform environment. To meet the needs of users. In this paper, in view of the operating system in the core position in the development of computer and technological change has made an analysis of the function of computer operating system, development and classification of simple analysis and elaborationKey words: computer operating system, development,new technology Operating system is to manage all the computer system hardware resources include software and data resources; Control program is running; Improve the man-machine interface; Provide support for other application software, etc., all the computer system resourcesto maximize the role, to provide users with convenient, efficient, friendly service interface.The operating system is a management computer hardware and software resources program, is also the kernel of the computer system and the cornerstone. Operating system have such as management and configuration memory, decided to system resources supply and demand of priorities, control input and output devices, file system and other basic network operation and management affairs. Operating system is to manage all the computer system hardware resources include software and data resources; Control program is running; Improve the man-machine interface; Provide support for other application software, etc., all the computer system resources to maximize the role, to provide users with convenient, efficient, friendly service interface. Operating system is a huge management control procedures, including roughly five aspects of management functions, processes and processor management, operation management, storage management, equipment management, file management. At present the common operating system on microcomputer DOS, OS / 2, UNIX, XENIX, LINUX, Windows, Netware, etc. But all of the operating system with concurrency, sharing, four basic characteristics of virtual property and uncertainty. At present there are many different kinds of operating system, it is difficultto use a single standard unified classification. Divided according to the application field, can be divided into the desktop operating system, server operating system, the host operating system, embedded operating system.1.The basic introduction of the operating system(1)The features of the operating systemManagement of computer system hardware, software, data and other resources, as far as possible to reduce the work of the artificial allocation of resources and people to the machine's intervention, the computer automatically work efficiency into full play.Coordinate the relationship between and in the process of using various resources, make the computer's resources use reasonable scheduling, both low and high speed devices running with each other.To provide users with use of a computer system environment, easy to use parts of a computer system or function. Operating system, through its own procedures to by all the resources of the computer system provides the function of the abstract, the function of the formation and the equivalent of the operating system, and image, provide users with convenient to use the computer.(2)The development of the operating systemOperating system originally intended to provide a simple sorting ability to work, after updating for auxiliary more complex hardwarefacilities and gradual evolution.Starting from the first batch mode, also come time sharing mechanism, in the era of multiprocessor comes, the operating system also will add a multiprocessor coordination function, even the coordination function of distributed systems. The evolution of the other aspects also like this.On the other hand, on a personal computer, personal computer operating system of the road, following the growth of the big computer is becoming more and more complex in hardware, powerful, and practice in the past only large computer functions that it step by step.Manual operation stage. At this stage of the computer, the main components is tube, speed slow, no software, no operating system. User directly using a machine language program, hands-on completely manual operation, the first will be prepared machine program tape into the input, and then start the machine input the program and data into a computer, and then through the switch to start the program running and computing, after the completion of the printer output. The user must be very professional and technical personnel to achieve control of the computer.Batch processing stage. Due to the mid - 1950 - s, the main components replaced by the transistor computer, running speed hadthe very big enhancement, the software also began to develop rapidly, appeared in the early of the operating system, it is the early users to submit the application software for management and monitoring program of the batch.Multiprogramming system phase. As the medium and small-scale integrated circuit widely application in computer systems, the CPU speed is greatly increased, in order to improve the utilization rate of CPU and multiprogramming technology is introduced, and the special support multiprogramming hardware organization, during this period, in order to further improve the efficiency of CPU utilization, a multichannel batch system, time-sharing system, etc., to produce more powerful regulatory process, and quickly developed into an important branch of computer science, is the operating system. Collectively known as the traditional operating system.Modern operating systems. Large-scale, the rapid development of vlsi rapidly, a microprocessor, optimization of computer architecture, computer speed further improved, and the volume is greatly reduced, for personal computers and portable computer appeared and spread. Its the biggest advantage is clear structure, comprehensive functions, and can meet the needs of the many USES and operation aspects.2. New technology of the operating systemFrom the standpoint of the operating system of the new technology, it mainly includes the operating system structure design of the micro kernel technology and operating system software design of the object-oriented technology.(1) The microkernel operating system technologyA prominent thought in the design of modern operating systems is the operating system of the composition and function of more on a higher level to run (i.e., user mode), and leave a small kernel as far as possible, use it to complete the core of the operating system is the most basic function, according to the technology for micro kernel (Microkernel) technology.The microkernel structure(1) Those most basic, the most essential function of the operatingsystem reserved in the kernel(2)Move most of the functionality of the operating system intothe kernel, and each operating system functions exist in theform of a separate server process, and provide services.(3)In user space outside of the kernel including all operatingsystem, service process also includes the user's applicationprocess. Between these processes is the client/server mode.Micro kernel contains the main ingredient(1) Interrupt and the exception handling mechanism(2)Interprocess communication mechanisms(3)The processor scheduling mechanism(4)The basic mechanism of the service functionThe realization of the microkernelMicro kernel implementation "micro" is a major problem and performance requirements of comprehensive consideration. To do "micro" is the key to implementation mechanism and strategy, the concept of separation. Due to the micro kernel is the most important of news communication between processes and the interrupt processing mechanism, the following briefly describes the realization of both.Interprocess communication mechanismsCommunication service for the client and the server is one of the main functions of the micro kernel, is also the foundation of the kernel implement other services. Whether to send the request and the server reply messages are going through the kernel. Process of news communication is generally through the port (port). A process can have one or more ports, each port is actually a message queue or message buffer, they all have a unique port ID (port) and port authority table, the table is pointed out that this process can be interactive communications and which process. Ports ID and kernel power table maintenance.Interrupt processing mechanismMicro-kernel structure separation mechanism will interrupt and the interrupt processing, namely the interrupt mechanism on micro kernel, and put the interrupt handling in user space corresponding service process. Micro kernel interruption mechanism, is mainly responsible for the following work:(1) When an interrupt occurs to identify interrupt;(2) Put the interrupt signal interrupt data structure mapping tothe relevant process;(3) The interrupt is transformed into a message;(4) Send a message to the user space in the process of port, butthe kernel has nothing to do with any interrupt handling.(5) Interrupt handling is to use threads in a system.The advantages of the microkernel structure(1) Safe and reliableThe microkernel to reduce the complexity of the kernel, reduce the probability of failure, and increases the security of the system.(2) The consistency of the interfaceWhen required by the user process services, all based on message communication mode through the kernel to the server process. Therefore, process faces is a unified consistent processescommunication interface.(3) Scalability of the systemSystem scalability is strong, with the emergence of new hardware and software technology, only a few change to the kernel.(4) FlexibilityOperating system has a good modular structure, can independently modify module and can also be free to add and delete function, so the operating system can be tailored according to user's need.(5) CompatibilityMany systems all hope to be able to run on a variety of different processor platform, the micro kernel structure is relatively easy to implement.(6) Provides support for distributed systemsOperating under the microkernel structure system must adopt client/server mode. This model is suitable for distributed systems, can provide support for distributed systems.The main drawback of microkernelUnder the micro-kernel structure, a system service process need more patterns (between user mode and kernel mode conversion) and process address space of the switch, this increases costs, affected the speed of execution.3 .Object-oriented operating system technologyObject-oriented operating system refers to the operating system based on object model. At present, there have been many operating system used the object-oriented technology, such as Windows NT, etc. Object-oriented has become a new generation of an important symbol of the operating system.The core of object-oriented conceptsIs the basic idea of object-oriented to construct the system as a series of collections of objects. The object refers to a set of data and the data of some basic operation encapsulated together formed by an entity. The core of object-oriented concept includes the following aspects:(1) EncapsulationIn object-oriented encapsulation is the meaning of a data set and the data about the operation of the packaging together, form a dynamic entity, namely object. Encapsulated within the request object code and data to be protected.(2) InheritanceInheritance refers to some object can be inherited some features and characteristics of the object.(3) PolymorphismPolymorphism refers to a name a variety of semantics, or the same interface multiple implementations. Polymorphism inobject-oriented languages is implemented by overloading and virtual functions.(4) The messageNews is the way of mutual requests and mutual cooperation between objects. An object through the message to activate another object. The message typically contains a request object identification and information necessary to complete the work.Object-oriented operating systemIn object-oriented operating system, the object as a concurrent units, all system resources, including documents, process and memory blocks are considered to be an object, such as the operating system resources are all accomplished through the use of object services.The advantages of object-oriented operating system:(1)Can reduce operating system throughout its life period whena change is done to the influence of the system itself.For example, if the hardware has changed, will force the operating system also changes, in this case, as long as change the object representing the hardware resources and the operation of the object of service, and those who use only do not need to change the object code.(2)Operating system access to its resources and manipulation are consistent .Operating system to produce an event object, delete, and reference, and it produces reference, delete, and a process object using the same method, which is implemented by using a handle to the object. Handle to the object, refers to the process to a particular object table in the table.(3)Security measures to simplify the operating system.Because all the objects are the same way, so when someone tries to access an object, security operating system will step in and approved, regardless of what the object is.(4)Sharing resources between object for the process provides a convenient and consistent approach.Object handle is used to handle all types of objects. The operating system can by tracking an object, how many handle is opened to determine whether the object is still in use. When it is no longer used, the operating system can delete the object.ConclusionIn the past few decades of revolutionary changes have taken place in the operating system: technological innovation, the expansionof the user experience on the upgrade, application field and the improvement of function. As in the past few decades, over the next 20 years there will be huge changes in operating system. See we now use the operating system is very perfect. Believe that after the technology of the operating system will still continue to improve, will let you use the more convenient. Believe that the operating system in the future will make our life and work more colorful.。
电脑个人装机必看硬件参数

芯片组(Chipset)芯片组(Chipset)是主板的核心组成部分,如果说中央处理器(CPU)是整个电脑系统的心脏,那么芯片组将是整个身体的躯干。
在电脑界称设计芯片组的厂家为Core Logic,Core 的中文意义是核心或中心,光从字面的意义就足以看出其重要性。
对于主板而言,芯片组几乎决定了这块主板的功能,进而影响到整个电脑系统性能的发挥,芯片组是主板的灵魂。
芯片组性能的优劣,决定了主板性能的好坏与级别的高低。
这是因为目前CPU的型号与种类繁多、功能特点不一,如果芯片组不能与CPU良好地协同工作,将严重地影响计算机的整体性能甚至不能正常工作。
主板芯片组几乎决定着主板的全部功能,其中CPU的类型、主板的系统总线频率,内存类型、容量和性能,显卡插槽规格是由芯片组中的北桥芯片决定的;而扩展槽的种类与数量、扩展接口的类型和数量(如USB2.0/1.1,IEEE1394,串口,并口,笔记本的VGA输出接口)等,是由芯片组的南桥决定的。
还有些芯片组由于纳入了3D加速显示(集成显示芯片)、AC'97声音解码等功能,还决定着计算机系统的显示性能和音频播放性能等。
现在的芯片组,是由过去286时代的所谓超大规模集成电路:门阵列控制芯片演变而来的。
芯片组的分类,按用途可分为服务器/工作站,台式机、笔记本等类型,按芯片数量可分为单芯片芯片组,标准的南、北桥芯片组和多芯片芯片组(主要用于高档服务器/工作站),按整合程度的高低,还可分为整合型芯片组和非整合型芯片组等等。
台式机芯片组要求有强大的性能,良好的兼容性,互换性和扩展性,对性价比要求也最高,并适度考虑用户在一定时间内的可升级性,扩展能力在三者中最高。
在最早期的笔记本设计中并没有单独的笔记本芯片组,均采用与台式机相同的芯片组,随着技术的发展,笔记本专用CPU的出现,就有了与之配套的笔记本专用芯片组。
笔记本芯片组要求较低的能耗,良好的稳定性,但综合性能和扩展能力在三者中却也是最低的。
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DSP CPU基础院系:电子与信息工程学院班级:电信10-2姓名:张玥学号:10071201026指导老师:郜参观·1·DSP CPU基础一、实验目的1.了解TMS320C5400系列汇编语言程序的基本格式,以及编译、连接的基本过程2.进一步熟悉Code Composer Studio的使用3.了解C5400中标志位对计算的影响,以及计算对标志位的影响二、实验设备1.集成开发环境Code Composer Studio(简称CCS)2.实验代码cpu_basic.s54、cpu_basic.cmd和cpu_basic.gel三、实验内容1.基本操作运行CCS,选择C54xx Simulator建立一个新的项目,并加入文件cpu_basic.s54和cpu_basic.cmd(实验内容如下图(一)所示)。
载入cpu_basic.gel在Project-->Option中加入适当的编译和连接的选项Build整个项目,产生可执行代码(.out)(实验内容如下图(二)所示)。
File->Load Program,装载可执行代码,并运行。
·2··3·图(一)图(二)2.基本调试设置断点单步执行3.练习观察并理解程序和数据空间安排测试SXM、OVM、C16、FRCT对计算结果的影响测试计算和逻辑运算对TC、C、OVA、OVB的影响4.DSK仿真练习a)测试SMUL标志对计算的影响测试MP/MC、OVLY、DROM对计算结果的影响MP/MC=0,切换DROM的数值,观测0xfc00地址存放的A、U律数据是否存在MP/MC=0,OVLY=1, 观测0x1000地址存放程序是否存在(改变该处为只读)四、实验结果和提示1.与运算相关的标志位SXM当SXM置1时,数据读写按照符号扩展的方式,因此A=0xff ffff ff80 当SXM置0时,数据读写为无符号扩展的方式,因此A=0x00 0000 ff80 OVM当OVM置1时,数据运算的结果将按照32位饱和,因此A=0xff 8000 0000 当OVM置0时,数据运算不饱和,因此B=0x00 fffe 0000C16双16位计算比较FRCT乘法移位比较TC比特测试比较C进位、借位和大小比较OVA, OVB溢出标志比较SMUL(软件仿真器无法模拟该标志位,需用DSK开发板观察该位的影响) 乘法饱和·4·(1)上述实验中出现的实验程序如下所示STACK_ADDR .set 0x0500 ;bottom of stack.mmregs.global m ain;------------------------------------------------------------------------------.textmain:stm #STACK_ADDR, SP ;set stackstm #0x00a8, PMST ;relocate Interrupt Vector Table stm #0x0000, SWWSR ;no software wait for all memory;put a value for future use, *(0x2000) = 0xff80stm #0x2000, AR2st #0xff80, *AR2;================================================;test SXM;watch A to understand sign extensionssbx SXMnopld *AR2, A;------------------------rsbx SXMnopld *AR2, A;================================================;test OVM;watch A and B to understand saturationssbx SXMssbx OVMld #0x8000, 16, Aadd #0x8000, 16, A;------------------------rsbx OVMld #0x7fff, 16, Badd #0x7fff, 16, B·5·;================================================;================================================;test C16;watch B to understand 2-16 modessbx OVMld #0x0001, 16, Aadd #0x7fff, Adst A, *AR2ld #0x0001, 16, Aor #0xffff, Arsbx C16nopdadd *AR2, A, B;------------------------ssbx C16nopdadd *AR2, A, B;================================================;================================================;test FRCT;watch B to understand fraction modeld #0x1234, 16, Arsbx FRCTnopmpya *AR2;------------------------ssbx FRCTnopmpya *AR2;================================================;================================================;test TC;watch TC to understand bit test operation and corresponding flags·6·bitf *AR2, #0x8000nopnop;------------------------bitf *AR2, #0x0001nopnop;================================================;================================================;test C;watch C to understand max & min operation and corresponding flags ssbx SXMld #0x7fff, Ald #0x8000, Bmax Anopnop;------------------------min Bnopnop;================================================;================================================;test OVA, OVB;watch OVA to understand overflowssbx SXMrsbx OVA ;clear overflow flagld #0x7fff, 16, Aadd #0xffff, Anopnop;------------------------add #0x7fff, 16, Anopnop·7·;================================================;================================================;test SMUL;watch A to understand multiply saturationssbx SXMssbx OVMssbx FRCTldm PMST, Bor #0x0002, Bstlm B, PMSTld #0xffff, Astm #0x8000, Tst #0x8000, *AR2nopnopmac *AR2, Anopnop;------------------------ldm PMST, Band #0xfffd, Bstlm B, PMSTld #0xffff, Anopmac *AR2, A;================================================dead_loop:nopnopnopnopb dead_loop;------------------------------------------------------------------------------;Interrupt Vector Table, for simplicity Only RESET interrupt is defined·8··9·.sect "vectors" int_RESET: b main nop nop.space 124*;end of lab1.s54(2)实验内容如下图(三)所示。
图(三)2. 与存储器配置相关的标志位 DROMROM 映射到数据空间从View 菜单的Graph 中选择Time/Frequency 即可生成一个时/频显示窗口,首先弹出的是”Graph Property ”对话框,将其中Start Address 改为0xfe00。
正弦表的长度为0x0100即256,Acquisition Buffer Size 和Display Data size 设为256,(1)若MC为0,DROM为1,page 设为data 或program,则有下图(四):说明片内ROM可访问,片内ROM映射到数据空间(2)若MC为0,DROM为0,page设为data,则无数据显示。
说明片内ROM不映射到数据空间(3)若MC为1,page设为program,无数据显示,说明片内ROM无法访问OVLY存储空间重叠OVLY为1,片内RAM同时映射到程序和数据空间·10·。