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  本文關(guān)鍵詞： 模型機(jī) CPLD RISC 組合邏輯 控制器 指令系統(tǒng)　出處：《河北工業(yè)大學(xué)》2012年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：《計(jì)算機(jī)組成原理》是計(jì)算機(jī)專(zhuān)業(yè)的一門(mén)核心課程，該課程涉及學(xué)科知識(shí)較多，需要硬件，軟件，數(shù)字電路，程序設(shè)計(jì)方法學(xué)等課程的支撐，讓學(xué)生們參與課程實(shí)驗(yàn)是學(xué)好這門(mén)課程的一個(gè)非常有效的方法，因此，該課程的實(shí)驗(yàn)教學(xué)也越來(lái)越受到各所高校的重視。而該課程所用到的模型機(jī)根據(jù)控制器的不同，分為組合邏輯控制器模型機(jī)和微程序控制器模型機(jī)。為了豐富組成原理課程教學(xué)，完善組成原理課程設(shè)計(jì)，認(rèn)識(shí)和理解CPU的內(nèi)部結(jié)構(gòu)和工作原理，本文設(shè)計(jì)實(shí)現(xiàn)了組合邏輯控制器模型機(jī)。 組合邏輯控制器模型機(jī)按照馮·諾依曼結(jié)構(gòu)設(shè)計(jì)，總線(xiàn)寬度設(shè)為8位，指令系統(tǒng)的設(shè)計(jì)借鑒了精簡(jiǎn)指令系統(tǒng)（RISC），包括23條功能指令和3條面板指令，主要由簡(jiǎn)單并且使用頻率高的指令構(gòu)成，包括了寄存器操作類(lèi)指令、內(nèi)存訪問(wèn)類(lèi)指令、跳轉(zhuǎn)類(lèi)指令和輸入輸出指令�？刂破鞑糠植捎肅PLD設(shè)計(jì)，用指令譯碼器完成對(duì)指令的譯碼，通過(guò)分析指令執(zhí)行過(guò)程，，確定機(jī)器周期節(jié)拍數(shù)為8個(gè)，使大部分指令能在一個(gè)周期內(nèi)完成，個(gè)別復(fù)雜指令由兩個(gè)周期完成指令執(zhí)行任務(wù)，然后通過(guò)分析控制信號(hào)的形成過(guò)程，列出控制信號(hào)的邏輯表達(dá)式，最終搭建出組合邏輯電路，完成控制器部分的設(shè)計(jì)，和外圍運(yùn)算器和存儲(chǔ)器組成完整的模型機(jī)。 與微程序控制器模型機(jī)相比，組合邏輯控制器模型機(jī)在速度上有很大的優(yōu)勢(shì)，而由CPLD實(shí)現(xiàn)的控制器有效地增強(qiáng)了設(shè)計(jì)的靈活性，并縮小了機(jī)器體積，提高了整體性能。
[Abstract]:The principle of computer composition is a core course of computer science, which involves a lot of knowledge and needs the support of hardware, software, digital circuit, programming methodology and so on. It is a very effective way to learn the course well by involving students in the course experiment. Therefore, the experimental teaching of the course is paid more and more attention by the universities and colleges, and the model machine used in the course is different according to the controller. It is divided into combinatorial logic controller model machine and microprogram controller model machine. In order to enrich the teaching of composing principle course, perfect the design of composition principle course, understand and understand the internal structure and working principle of CPU, In this paper, a combined logic controller model machine is designed and implemented. The combinational logic controller model machine was designed with a Von Neumann structure, and the bus width was set to 8 bits. The instruction system was designed using the reduced instruction system (RISC), which consists of 23 functional instructions and 3 panel instructions. It is mainly composed of simple and high-frequency instructions, including register operation instruction, memory access class instruction, jump class instruction and input and output instruction. The controller part is designed by CPLD, and the instruction decoder is used to decode the instruction. By analyzing the instruction execution process, it is determined that the number of periodic beats of the machine is 8, so that most of the instructions can be completed in one cycle, and some complex instructions are executed by two cycles, and then the forming process of the control signal is analyzed. The logic expression of the control signal is listed, and the combinational logic circuit is built up finally, the controller part is designed, and the peripheral arithmetic and memory constitute the complete model machine. Compared with the microprogramming controller model machine, the combinational logic controller model machine has a great advantage in speed, while the controller realized by CPLD effectively enhances the design flexibility, reduces the machine volume and improves the overall performance.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類(lèi)號(hào)】：TP333

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