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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Motorola 68012 ： ウィキペディア英語版 Motorola 68012 The Motorola MC68012 processor is a 16/32-bit microprocessor from the early 1980s. It is an 84-pin PGA〔(Motorola 68012 (MC68012) microprocessor family )〕 version of the Motorola MC68010. The memory space was extended to 2GB and an RMC〔Read-Modify-write Cycle indicator, same as used on the MC68020 for multiprocessing support〕 pin was added, in order to help the design of multiprocessor systems with virtual memory.〔(DatasheetArchive :: Datasheet and Specsheet for MC68012RC12 )〕〔Avtar, Singh. 16-Bit and 32-Bit Microprocessors: Architecture, Software, and Interfacing Techniques. New Jersey. Englewood Cliffs. 1991 〕 All other features of the MC68010 were preserved. The expansion of the memory space caused an issue for any programs that used the high byte of an address to store data, a programming trick that was successful with those processors that only have a 24-bit address bus (68000 and 68010). A similar problem affected the 68020. == Notes and references == 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Motorola 68012」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.