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real mode
対訳 リアル モード
- 解説
- An operating mode in the Intel 80x86 family of microprocessors. In real mode, the processor can execute only one program at a time. It can access no more than about 1 MB of memory, but it can freely access system memory and input/output devices. Real mode is the only mode possible in the 8086 processor and is the only operating mode supported by MS-DOS. In contrast, the protected mode offered in the 80286 and higher microprocessors provides the memory management and memory protection needed for multitasking environments such as Windows.
ウィキペディア英語版
出典：Wikipedia
Real mode
出典:『Wikipedia』 (2011/04/14 05:30 UTC 版)
英語による解説
ウィキペディア英語版からの引用
- 引用
Real mode, also called real address mode, is an operating mode of 80286 and later x86-compatible CPUs. Real mode is characterized by a 20 bit segmented memory address space (giving exactly 1 MB of addressable memory) and unlimited direct software access to all memory, I/O addresses and peripheral hardware. Real mode provides no support for memory protection, multitasking, or code privilege levels. 80186 CPUs and earlier, back to the original 8086, have only one operational mode, which is equivalent to real mode in later chips. All x86 CPUs in the 80286 series and later start in real mode when reset.
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Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのReal mode (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。
