單一指令計算機

單一指令計算機（英語：one instruction set computer，OISC）也稱最簡指令集計算機（ultimate reduced instruction set computer，URISC），它是一種抽象計算機，該計算機只有一條指令^[1]^[2]^[3]。巧妙地選取這一條指令，並且給予無限的資源，單一指令計算機就能成為和其他多指令計算機一樣的圖靈機^[2]^:55。在教學上，這種計算機被推薦來幫助理解計算機架構^[2]^:2 ^[1]^:327，同時，也能用它來研究計算機的結構模型^[3]。

參考文獻

^ ^1.0 ^1.1 Mavaddat, F.; Parhami, B. URISC: The Ultimate Reduced Instruction Set Computer (PDF). Int'l J. Electrical Engineering Education (Manchester University Press). October 1988, 25 (4): 327–334 [2010-10-04]. （原始內容存檔 (PDF)於2019-10-18）. This paper considers "a machine with a single 3-address instruction as the ultimate in RISC design (URISC)". Without giving a name to the instruction, it describes a SBN OISC and its associated assembly language, emphasising that this is a universal (i.e., Turing-complete) machine whose simplicity makes it ideal for classroom use.
^ ^2.0 ^2.1 ^2.2 Gilreath, William F.; Laplante, Phillip A. Computer Architecture: A Minimalist Perspective. Springer Science+Business Media. 2003 [2017-09-13]. ISBN 978-1-4020-7416-5. （原始內容存檔於2009-06-13）. Intended for researchers, computer system engineers, computational theorists and students, this book provides an in-depth examination of various OISCs, including SBN and MOVE. It attributes SBN to W. L. van der Poel (1956).
^ ^3.0 ^3.1 Nürnberg, Peter J.; Wiil, Uffe K.; Hicks, David L., A Grand Unified Theory for Structural Computing, Metainformatics: International Symposium, MIS 2003, Graz, Austria: Springer Science+Business Media: 1–16, September 2003 [2014-06-08], ISBN 978-3-540-22010-7, （原始內容存檔於2015-01-03） This research paper focusses entirely on a SUBLEQ OISC and its associated assembly language, using the name SUBLEQ for "both the instruction and any language based upon it".

[urisc-1] 1.0 ^1.1 Mavaddat, F.; Parhami, B. URISC: The Ultimate Reduced Instruction Set Computer (PDF). Int'l J. Electrical Engineering Education (Manchester University Press). October 1988, 25 (4): 327–334 [2010-10-04]. （原始內容存檔 (PDF)於2019-10-18）. This paper considers "a machine with a single 3-address instruction as the ultimate in RISC design (URISC)". Without giving a name to the instruction, it describes a SBN OISC and its associated assembly language, emphasising that this is a universal (i.e., Turing-complete) machine whose simplicity makes it ideal for classroom use.

[caamp-2] 2.0 ^2.1 ^2.2 Gilreath, William F.; Laplante, Phillip A. Computer Architecture: A Minimalist Perspective. Springer Science+Business Media. 2003 [2017-09-13]. ISBN 978-1-4020-7416-5. （原始內容存檔於2009-06-13）. Intended for researchers, computer system engineers, computational theorists and students, this book provides an in-depth examination of various OISCs, including SBN and MOVE. It attributes SBN to W. L. van der Poel (1956).

[agut-3] 3.0 ^3.1 Nürnberg, Peter J.; Wiil, Uffe K.; Hicks, David L., A Grand Unified Theory for Structural Computing, Metainformatics: International Symposium, MIS 2003, Graz, Austria: Springer Science+Business Media: 1–16, September 2003 [2014-06-08], ISBN 978-3-540-22010-7, （原始內容存檔於2015-01-03） This research paper focusses entirely on a SUBLEQ OISC and its associated assembly language, using the name SUBLEQ for "both the instruction and any language based upon it".

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