{"title":"Identification of microprogrammable loops for problem oriented architecture synthesis","authors":"H. Shin, M. Malek","doi":"10.1145/1096419.1096438","DOIUrl":"https://doi.org/10.1145/1096419.1096438","url":null,"abstract":"The performance of a microprogrammable computer with the writable control memory can be improved by embedding a loop as a single microprogrammed instruction. This paper presents an algorithm for the identification of microprogrammable loops based on the construction of an interval. Also, implementation strategies are discussed with respect to such implementation phases as synthesis of a new instruction and its loading into the control memory. Finally, from the performance point of view, the problem oriented architecture synthesis is compared with the CPU operation overlap.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124086082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On automated design of compacted microprograms","authors":"P. Dembinski","doi":"10.1145/1096419.1096450","DOIUrl":"https://doi.org/10.1145/1096419.1096450","url":null,"abstract":"A method of automated design of horizontal microprograms from their vertical specifications is proposed. It may be considered complementary to the known microprogram compaction algorithms in that it mainly deals with branching and looping structure of the source microprogram and not with its straight line segments. The method is based on systematic performance of a local microprogram transformation dynamically adjusted to the hardware derived constraints formulated separately.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129127718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"M29: an advanced retargetable microcode assembler","authors":"Michael J. Eager","doi":"10.1145/1096419.1096434","DOIUrl":"https://doi.org/10.1145/1096419.1096434","url":null,"abstract":"The M29 Assembler is a retargetable microcode assembler which produces relocatable microcode. It provides a straightforward means of describing the microinstruction format, a very general method of specifying field contents, a comprehensive macro facility, and a multifunction relocating linker which permits overlays and libraries of microcode. Several features support improved productivity and reduction of coding errors.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121185249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experience developing microcode using a high level language","authors":"R. Preston Gurd","doi":"10.1145/1096419.1096446","DOIUrl":"https://doi.org/10.1145/1096419.1096446","url":null,"abstract":"This paper describes a project in which every line of microcode developed was written in a high level language.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117347807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards better instruction sets","authors":"M. Flynn","doi":"10.1145/1096419.1096421","DOIUrl":"https://doi.org/10.1145/1096419.1096421","url":null,"abstract":"An effectively designed instruction set is the result of many considerations. These include not only obvious measures such as code size, performance and implementation cost, but also issues such as compatibility and especially design complexity.In an effort to reduce the design complexity, flexible or universal base designs have been used to realize various instruction sets or source problem requirements.Using either a dedicated or universal host, language oriented DEL architectures may offer some significant performance advantages over more traditional architectures.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125342202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The codes project at the University of Southwestern Louisiana","authors":"J. Linn, S. Dasgupta, B. Shriver","doi":"10.1145/1218037.1218039","DOIUrl":"https://doi.org/10.1145/1218037.1218039","url":null,"abstract":"The Computer Science Department of the University of Southwestern Louisiana (USL) has a long history of involvement in the area of firmware engineering. The CODES project began in October, 1982. It brings together the experience gained in earlier work to focus on the design and implementation of an integrated suite of microprogramming tools. The primary participants in this project are Dr. Joseph L. Linn, Dr. Subrata Dasgupta, Dr. Bruce D. Shriver, several full-time and part-time graduate research assistants at both the M.Sc. and Ph.D. level and several undergraduate students. The CODES project has been supported, in part, via funding from the Advanced Technology Laboratory of the RCA Corporation.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122906240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microprogram documentation with design in mind","authors":"C. R. Stevens","doi":"10.1145/1218037.1218040","DOIUrl":"https://doi.org/10.1145/1218037.1218040","url":null,"abstract":"This paper discusses the dilemmas of microcode documentation. It discusses the traditional relationship between \"designing\" microcode and \"documenting\" microcode. It establishes a different relationship between designing and documenting, one where the primary emphasis is shifted to documentation. The activities of documenting become the \"process\" by which a quality design can be achieved. A strategic documentation framework combined with a high-level design language to form and test the proper solution is suggested as a means of achieving quality designs.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131249883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Firmware engineering and microprogramming at the University of Cincinnati","authors":"C. Papachristou","doi":"10.1145/1218042.1218043","DOIUrl":"https://doi.org/10.1145/1218042.1218043","url":null,"abstract":"A research program in firmware engineering and microprogramming is in progress at the Electrical and Computer Engineering Department of the University of Cincinnati. The group of researchers engaged in this effort is supervised by Dr. Christos Papachristou and involves his graduate assistants, Mr. Satnam Gambhir, Ms. Evelyn Melton and Mr. Pei-Ching Hwang. This research is supported in part by U.S. Army Research Office grant DAAG29-85-K-0106, gratefully acknowledged. Some preliminary results were reported at Micro-14, Micro-15 and the IEEE International Workshop on Computer Systems Organization.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"03 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127164264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Microprogramming at Vanderbilt University","authors":"R. I. Winner","doi":"10.1145/1218042.1218044","DOIUrl":"https://doi.org/10.1145/1218042.1218044","url":null,"abstract":"The Computer Science Department of Vanderbilt University is actively pursuing a research program in microprogramming and related engineering. Projects at this time are being directed by Dr. Robert I. Winner with the participation of several graduate students, E. Michael Carter (Ph.D candidate), J. Eric Roskos (Ph.D student), Leonard B. Reed (Ph.D student), Thomas M. Wood (M.S. student), and Richard L. Booth (M.E. student).","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122596777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new perspective on the classical microcode compaction problem","authors":"S. Vegdahl","doi":"10.1145/1218033.1218034","DOIUrl":"https://doi.org/10.1145/1218033.1218034","url":null,"abstract":"Some comments are made concerning the generality and complexity of the classical microcode compaction problem. A trivial example is given that no classical compaction algorithm would compact optimally, because the computation of data precedence relations is dependent on the order of the source code. It is further argued that the classical compaction problem can be solved optimally in polynomial time, where the degree of the polynomial is dependent only on the micromachine architecture. We conclude that the most difficult portion of the microcode compaction problem is that of initially ordering the source code.","PeriodicalId":138968,"journal":{"name":"ACM Sigmicro Newsletter","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1983-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126553005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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