翻訳と辞書 Words near each other ・ interpress ・ interpreted ・ interpreter ・ interpretive menu processor ・ interrupt ・ interrupt handler ・ interrupt list ・ interrupt priority level ・ interrupt request ・ interrupts ・ intersil 6100 ・ intersil 6120 ・ interstitial ・ interupt ・ interviews ・ interworking ・ intranet ・ intrinsics ・ intrusion countermeasure electronics ・ intrusive testing Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Intersil 6100 ： FOLDOC Intersil 6100 (IMS 6100) A single chip design of the DEC PDP-8 minicomputer. The old PDP-8 design was very strange, and if it hadn't been popular, an awkward CPU like the 6100 would never been designed. The 6100 was a 12-bit processor, which had three registers: the PC, AC (accumulator), and MQ. All 2-operand instructions read AC and MQ and wrote back to AC. It had a 12-bit address bus, limiting RAM to only 4K. Memory references were 7-bit, offset either from address 0, or from the PC page base address (PC AND 7600 oct). It had no stack. Subroutines stored the PC in the first word of the subroutine code itself, so recursion required fancy programming. 4K RAM was pretty much hopeless for general purpose use. The 6102 support chip (included in the 6120) added 3 address lines, expanding memory to 32K the same way that the PDP-8/E expanded the PDP-8. Two registers, IFR and DFR, held the page for instructions and data respectiv 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.