指令集架构( Instruction Set Architecture ),又称指令集或指令集体系,是计算机体系结构中与程序设计有关的部分,包含了基本数据类型,指令集,寄存器,寻址模式,存储体系,中断,异常处理以及外部 I/O 。 指令集架构包含一系列的 opcode 即操作码(机器语言),以及由特定处理器执行的基本命令。 简单地来说,指令集
复杂指令集架构 CISC , 英文全称 " Complex Instruction Set Computer " , 指令数量多、格式多样、长度不一、功能强大 ; CISC 通过 微程序控制 技术实现 ; 微程序 又称为 微码 , 是 程序员 用 伪指令 编写的程序 ; 程序员 通过 微程序 解读 复杂指令 , 然后由 硬件 执行 ; 复杂指令集架构 有如下特征 :...
RISC : means reduced instruction ( more ) but each one is simple so its time complexity considered to be few compared to CISC , so for eg. to perform the following exp. A=B+C using : RISC pattern : load R1 , B load R2 , C add R3,R1,R2 store R3,A ==>(pseudocode) using...
side. It also takes more time to design new CISC architecture. On the other side, RISC is a simple architecture and it is simple to implement. It means it takes short time to market and it has a lower risk than CISC. For that reason, RISC is the inevitable conclusion of Moore’s ...
smaller programs should improve performance RISC(精简指令集计算机)和CISC(复杂指令集计算机)是当前CPU的两种架构 区别示例 COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION In this section, we look at some of the general characteristics of and the motivation for a reduced instruc...
Flnny分类法 CISC与RISC CISC是指采用一整套计算机指令进行操作的计算机。 RISC 的指令系统相对简单,它只要求硬件执行很有限且最常用的那部分指令,大部分复杂的操作则使用成熟的编译技术,由简单指令合成。 ARM处理器 CISC(复杂指令集)与RISC(精简指令集) Architecture,英特尔架构)为主,而且多数为中低档服务器所采用...
Why RISC is preferred over CISC? RISC processors have a simpler architecture and fewer transistors than CISC processors, which makes them more power efficient and suitable for use in devices that require low power consumption. Also, RISC processors are less expensive to manufacture than CISC processo...
Editorial. Looks at Advanced Micro Devices executive John Bourgoin's views on the debate pitting the reduced instruction set computing (RISC) architecture against the complex instruction set computing (CISC) architecture. Review of convention wisdom surrounding the debate; Differences of each architecture...
文章目录 X86 IA64(Intel Architecture 64,英特尔架构64) MIPS(Microprocessor without interlockedpipedstages,无内部互锁流水级的微处理器) PowerPC ARM(Advanced RISC Machine,进阶精简指令集机器) CISC、RISC之争 功耗上的限制 ARM、X86也能相互融合 一台服务器、一台电脑、... ...
(IA:IntelArchitecture,Intel架构)。CISC 型CPU目前主要有intel的服务器CPU和AMD的服务器CPU两类。 RISC是英文“ReducedInstructionSetComputing”的缩写,中文意思是“精简指令集”。它 是在CISC(ComplexInstructionSetComputer)指令系统基础上发展起来的,有人对CISC 机进行测试表明,各种指令的使用频度相当悬殊,最常使用的...