microprogram

简明释义

英[ˈmaɪkrə(ʊ)ˌprəʊgræm]美[ˌmaɪkrəˈproɡræm]

n. 微程序；微程序控制

复 数 m i c r o p r o g r a m s

英英释义

单词用法

同义词

反义词

例句

1.This paper describes its basic principles. The modular microprogramming is introduced with an example of the emulation microprogram that has been run on the VAX-11/780 computer.

本文阐述了它的基本思想，并通过在VAX-11/780上运行仿真微程序的实例，说明模块结构微程序设计的方法。

2.There are two kinds of mode, increment and decision, used for microprogram sequential control.

微程序的顺序控制方式有两大类：增量方式和断定方式。

3.The executing of the microcode function of the microprogram controller is very crucial to the instructions decoder in the coprocessor.

在协处理器中，微程序控制器的微码控制是协处理器指令译码的控制核心。

4.This paper describes its basic principles. The modular microprogramming is introduced with an example of the emulation microprogram that has been run on the VAX-11/780 computer.

本文阐述了它的基本思想，并通过在VAX-11/780上运行仿真微程序的实例，说明模块结构微程序设计的方法。

5.A hybrid computer level whose instructions are interpreted by both the operating system and directly by the microprogram.

一种混合计算机级，其指令既由操作系统解释，也直接由微程序解释。

6.The architecture of the machine includes a microprogram 微程序 that defines its operation.

机器的架构包括一个定义其操作的微程序 microprogram。

7.In modern processors, the microprogram 微程序 controls the instruction set.

在现代处理器中，微程序 microprogram控制指令集。

8.Each instruction in the assembly language is translated into a microprogram 微程序 for execution.

汇编语言中的每条指令都被翻译成可执行的微程序 microprogram。

9.The CPU executes the microprogram 微程序 to perform basic operations.

CPU执行微程序 microprogram来执行基本操作。

10.Developers often modify the microprogram 微程序 for optimization purposes.

开发者通常会修改微程序 microprogram以优化性能。

作文

In the realm of computer architecture, the term microprogram refers to a sequence of microinstructions that dictate the operations of a computer's control unit. This concept is pivotal in understanding how modern processors execute complex instructions at high speeds. Essentially, a microprogram serves as a bridge between high-level programming languages and the low-level machine code that computers understand. By breaking down instructions into simpler, manageable tasks, microprograms enable the efficient execution of commands within the CPU.To illustrate the importance of microprogramming, let us consider the evolution of computer systems. Early computers relied heavily on hardwired control logic, which made them inflexible and challenging to modify. As technology advanced, engineers recognized the need for a more adaptable solution. This led to the development of microprogramming, allowing for easier updates and enhancements to the control unit without altering the physical hardware.A microprogram consists of a series of microoperations that are executed in a specific order. Each microoperation corresponds to a basic function, such as loading data from memory, performing arithmetic operations, or writing results back to memory. The control unit fetches these microinstructions from a special memory area known as the microprogram store. This allows the CPU to perform complex tasks by executing a series of simpler ones, ultimately increasing its efficiency.Moreover, the use of microprograms has significant implications for instruction set architecture (ISA). ISAs define the set of instructions that a processor can execute, and microprogramming allows for the implementation of these instructions in a way that is both efficient and flexible. For instance, a single high-level instruction may be translated into multiple microinstructions, each of which is executed sequentially by the control unit. This layered approach not only simplifies the design of the processor but also enhances its performance.In addition to improving efficiency, microprogramming facilitates the development of new features in processors. When a new instruction needs to be added to an existing architecture, it can often be implemented through modifications to the microprogram without requiring changes to the hardware. This flexibility has allowed computer manufacturers to innovate rapidly, keeping pace with the ever-evolving demands of software applications.However, despite its advantages, microprogramming is not without challenges. The complexity of managing microprograms can lead to increased overhead, as the control unit must manage the fetching and execution of numerous microinstructions. Additionally, designing an efficient microprogram requires a deep understanding of both the hardware and the software that will run on the system.In conclusion, the concept of microprogram is fundamental to modern computer architecture. It represents a critical advancement in how computers interpret and execute instructions, providing flexibility and efficiency in processing. As technology continues to evolve, the role of microprogramming will undoubtedly remain significant, shaping the future of computing and enabling the development of increasingly sophisticated systems. Understanding microprograms is essential for anyone interested in the inner workings of computers and the principles of computer design.

在计算机体系结构领域，术语microprogram指的是一系列微指令，这些微指令决定了计算机控制单元的操作。这个概念对于理解现代处理器如何以高速执行复杂指令至关重要。本质上，microprogram作为高级编程语言与计算机能够理解的低级机器代码之间的桥梁。通过将指令分解为更简单、可管理的任务，microprograms使得CPU内部命令的高效执行成为可能。为了说明microprogramming的重要性，让我们考虑计算机系统的演变。早期计算机严重依赖硬连线控制逻辑，这使得它们缺乏灵活性且难以修改。随着技术的发展，工程师意识到需要一种更加适应的解决方案。这导致了microprogramming的发展，使得控制单元能够进行更容易的更新和增强，而无需改变物理硬件。一个microprogram由一系列微操作组成，这些微操作按特定顺序执行。每个微操作对应于一个基本功能，例如从内存加载数据、执行算术运算或将结果写回内存。控制单元从一个特殊的内存区域中提取这些微指令，该区域称为microprogram store。这使得CPU能够通过执行一系列更简单的操作来完成复杂任务，从而最终提高其效率。此外，使用microprograms对指令集架构（ISA）具有重要影响。ISA定义了处理器可以执行的指令集，而microprogramming则允许以高效和灵活的方式实现这些指令。例如，一个高级指令可能被翻译成多个微指令，每个微指令由控制单元按顺序执行。这种分层方法不仅简化了处理器的设计，还提升了其性能。除了提高效率外，microprogramming还促进了处理器新功能的开发。当需要向现有架构添加新指令时，通常可以通过对microprogram的修改来实现，而无需对硬件进行更改。这种灵活性使得计算机制造商能够迅速创新，跟上软件应用日益增长的需求。然而，尽管有其优势，microprogramming并非没有挑战。管理microprograms的复杂性可能导致开销增加，因为控制单元必须管理众多微指令的提取和执行。此外，设计一个高效的microprogram需要对硬件和将在系统上运行的软件有深入的理解。总之，microprogram的概念是现代计算机体系结构的基础。它代表了计算机解释和执行指令方式的关键进步，为处理提供了灵活性和效率。随着技术的不断发展，microprogramming的角色无疑将继续保持重要地位，塑造计算的未来，并推动越来越复杂系统的发展。理解microprograms对于任何对计算机内部工作原理和计算机设计原则感兴趣的人来说都是必不可少的。