Intel 8080 Microprocessor
Introduction to Computer Architectures
~Intel 8080~
-Technical Report-
Examination number: Y8138573
Table of contents: 1 Introduction......................................................................................................3 2.1 General information.................................................................................................3 2 General architecture and structure…………………………………………….4 3.2 Registers……………………………………………………………………………………………..4 3.3 Stack Operation…………………………………………………………………………………..4 3.4 Left space of input-output…………………………………………………………….……..5 3.5 Internal state word……………………….…………………………………………………….5 3.6 Pin usage…………………………………………………………………………………………….5 3 Programming the 8080………………………………………………………………6 4.7 Internal architecture...............................................................................................6 4.8 8-bit instructions…………………………………………………………………………..……6 4.9 16-bit instructions……………………………………………………………………..……….7 4 Conclusions………………………………………………………………………….…….7 5 References………………………………………………………………..………………..8
1 Introduction:
At their birth microprocessors came with extravagant claims that later proved to be appropriate. Such a claim was: “The microprocessor represents truly low-cost computing . Its economics are so compelling that microcomputers are serving not only in many applications where computing power was previously too costly but also in applications where . . . computer control was formerly unthinkable” [1] which shows us that the microprocessor was built as the cheapest and most accessible tool for solving programmable problems, microprogramming being considered “the best way to design an automatic calculating machine” [2] as Maurice Wilkes stated in a conference in 1951. The first 8-bit microprocessor, INTEL 8008, had a simplistic architecture and was rapidly replaced by INTEL 8080 which also gave rise to other
~Intel 8080~
-Technical Report-
Examination number: Y8138573
Table of contents: 1 Introduction......................................................................................................3 2.1 General information.................................................................................................3 2 General architecture and structure…………………………………………….4 3.2 Registers……………………………………………………………………………………………..4 3.3 Stack Operation…………………………………………………………………………………..4 3.4 Left space of input-output…………………………………………………………….……..5 3.5 Internal state word……………………….…………………………………………………….5 3.6 Pin usage…………………………………………………………………………………………….5 3 Programming the 8080………………………………………………………………6 4.7 Internal architecture...............................................................................................6 4.8 8-bit instructions…………………………………………………………………………..……6 4.9 16-bit instructions……………………………………………………………………..……….7 4 Conclusions………………………………………………………………………….…….7 5 References………………………………………………………………..………………..8
1 Introduction:
At their birth microprocessors came with extravagant claims that later proved to be appropriate. Such a claim was: “The microprocessor represents truly low-cost computing . Its economics are so compelling that microcomputers are serving not only in many applications where computing power was previously too costly but also in applications where . . . computer control was formerly unthinkable” [1] which shows us that the microprocessor was built as the cheapest and most accessible tool for solving programmable problems, microprogramming being considered “the best way to design an automatic calculating machine” [2] as Maurice Wilkes stated in a conference in 1951. The first 8-bit microprocessor, INTEL 8008, had a simplistic architecture and was rapidly replaced by INTEL 8080 which also gave rise to other
References: [1] | G. Byblinsky, „"Here Comes The Second Computer Revolution",” Fortune, vol. XCII, nr. 5, 1975. | [2] | M [7] | J. W. Coffron, Understanding and Troubleshooting the Microprocessor, Englewood Cliffs, New Jersey: PRENTICE-HALL, INC., 1980. | [8] | „CPU World,” [Interactiv]