{"id":"https://openalex.org/W1597386284","doi":"https://doi.org/10.21236/ada126026","title":"Local Code Generation and Compaction in Optimizing Microcode Compilers","display_name":"Local Code Generation and Compaction in Optimizing Microcode Compilers","publication_year":1982,"publication_date":"1982-12-01","ids":{"openalex":"https://openalex.org/W1597386284","doi":"https://doi.org/10.21236/ada126026","mag":"1597386284"},"language":"en","primary_location":{"id":"doi:10.21236/ada126026","doi":"https://doi.org/10.21236/ada126026","is_oa":false,"landing_page_url":"https://doi.org/10.21236/ada126026","pdf_url":null,"source":{"id":"https://openalex.org/S4406923043","display_name":"Defense Technical Information Center (DTIC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"OSD or Non-Service DoD Agency","raw_type":"report"},"volume":null,"type":"report","is_traditional":false,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5035983773","display_name":"Steven R. Vegdahl","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Steven R. Vegdahl","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5035983773"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":66,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.5615000128746033,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.5615000128746033,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.2667999863624573,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10904","display_name":"Embedded Systems Design Techniques","score":0.10859999805688858,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/microcode-generation","display_name":"microcode generation","score":0.9020000100135803},{"id":"https://openalex.org/keywords/np-completeness","display_name":"NP-completeness","score":0.8379999995231628},{"id":"https://openalex.org/keywords/heuristic-algorithms","display_name":"heuristic algorithms","score":0.890999972820282}],"concepts":[{"id":"https://openalex.org/C22174128","wikidata":"https://www.wikidata.org/wiki/Q175869","display_name":"Microcode","level":2,"score":0.8817110061645508},{"id":"https://openalex.org/C169590947","wikidata":"https://www.wikidata.org/wiki/Q47506","display_name":"Compiler","level":2,"score":0.7238363027572632},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.66051185131073},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.6169466376304626},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.5832142233848572},{"id":"https://openalex.org/C196715460","wikidata":"https://www.wikidata.org/wiki/Q1414356","display_name":"Compaction","level":2,"score":0.47781136631965637},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.4567587971687317},{"id":"https://openalex.org/C133162039","wikidata":"https://www.wikidata.org/wiki/Q1061077","display_name":"Code generation","level":3,"score":0.450746089220047},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.16095539927482605},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.12022551894187927},{"id":"https://openalex.org/C187320778","wikidata":"https://www.wikidata.org/wiki/Q1349130","display_name":"Geotechnical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.0},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.21236/ada126026","doi":"https://doi.org/10.21236/ada126026","is_oa":false,"landing_page_url":"https://doi.org/10.21236/ada126026","pdf_url":null,"source":{"id":"https://openalex.org/S4406923043","display_name":"Defense Technical Information Center (DTIC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"OSD or Non-Service DoD Agency","raw_type":"report"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2062868730","https://openalex.org/W9427129","https://openalex.org/W2160692973","https://openalex.org/W1986178854","https://openalex.org/W1830893350","https://openalex.org/W2067583664","https://openalex.org/W2063225621","https://openalex.org/W2129962996","https://openalex.org/W2059673674","https://openalex.org/W1973480223"],"abstract_inverted_index":{"Horizontal":[0],"microarchitectures":[1],"often":[2,74,224],"have":[3,45],"features":[4,149],"that":[5,78,116,146,168,205,213,249,275],"make":[6,150],"it":[7,151],"difficult":[8,153],"for":[9,59,83,287],"a":[10,18,28,35,84,113,238],"compiler":[11,44,96],"to":[12,107,154,209,226,273],"produce":[13,155,210],"good":[14,156],"object":[15],"code":[16,69,76,89,101,111,114,136,157,160,166,188,211,222,229],"from":[17],"high-level":[19],"language.":[20],"Although":[21],"the":[22,43,63,66,80,88,95,100,109,135,142,159,187,231,235,260,265,276,289],"problem":[23,243,252,277],"of":[24,31,38,42,55,94,133,141,181,186,191,234,262],"compacted":[25,170],"microcode":[26,58,241],"into":[27],"near-minimal":[29],"number":[30,261],"microinstructions":[32],"has":[33],"received":[34],"great":[36],"deal":[37],"attention,":[39],"other":[40],"phases":[41,93,140],"not":[46,104,279],"been":[47],"studied":[48],"as":[49],"thoroughly.":[50],"This":[51,128],"dissertation":[52,129,176],"explores":[53,130,178],"methods":[54,132,180],"generating":[56,182,192],"quality":[57],"horizontal":[60],"microarchitectures,":[61],"compacting":[62],"microcode,":[64],"and":[65,71,91,138,144,171,269],"interaction":[67],"between":[68],"generation":[70,90,137,189],"compaction.\r\nThere":[72],"are":[73,97,169],"several":[75,124,164],"sequences":[77,167,212,223],"perform":[79],"same":[81],"computation":[82],"given":[85],"microarchitecture.":[86],"If":[87],"compaction":[92,139,242],"executed":[98],"sequentially,":[99],"generator":[102,161],"may":[103,122],"be":[105,207,254],"able":[106],"determine":[108],"best":[110],"because":[112],"sequence":[115],"compacts":[117],"well":[118],"in":[119,126,196,216,256,264],"one":[120,174],"situation":[121],"contain":[123],"bottlenecks":[125],"another.":[127],"three":[131],"coupling":[134],"compiler,":[143],"concludes":[145],"subtle":[147],"micromachine":[148,266],"very":[152],"unless":[158],"actually":[162],"produces":[163],"candidate":[165],"compared":[172],"with":[173],"another.\r\nThis":[175],"also":[177,245],"machine-independent":[179],"microcode.":[183],"One":[184],"aspect":[185],"problem--that":[190],"constants":[193,215],"intelligently--is":[194],"discussed":[195],"detail.":[197],"A":[198,282],"technique":[199],"called":[200],"constant":[201],"unfolding":[202],"is":[203,237,244,267,278,285],"presented":[204,286],"can":[206,253],"used":[208],"generate":[214],"unusual":[217],"ways":[218],"during":[219],"execution;":[220],"such":[221],"lead":[225],"more":[227],"compact":[228],"when":[230],"literal":[232],"field":[233],"microinstruction":[236],"bottleneck.\r\nThe":[239],"classical":[240],"examined.":[246],"We":[247],"show":[248],"this":[250,271],"NP-complete":[251],"solved":[255],"polynomial":[257],"time":[258],"if":[259],"registers":[263],"bounded,":[268],"use":[270],"result":[272],"argue":[274],"general":[280,290],"enough.":[281],"heuristic":[283],"algorithm":[284],"solving":[288],"problem.":[291]},"counts_by_year":[],"updated_date":"2026-11-06T12:05:46.655746","created_date":"2016-06-24T00:00:00"}