翻訳と辞書 Words near each other ・ Branching (version control) ・ Branching factor ・ Branching fraction ・ Branching identification key ・ Branching order of bacterial phyla (Battistuzzi et al., 2004) ・ Branching order of bacterial phyla (Cavalier-Smith, 2002) ・ Branching order of bacterial phyla (Ciccarelli et al., 2006) ・ Branching order of bacterial phyla (Gupta, 2001) ・ Branching order of bacterial phyla (Rappe and Giovanoni, 2003) ・ Branching order of bacterial phyla (Woese, 1987) ・ Branching Out ・ Brancepeth Castle ・ Brancepeth, Saskatchewan ・ Branch ・ Branch (banking) ・ Branch (computer science) ・ Branch (disambiguation) ・ Branch (hieroglyph) ・ Branch (surname) ・ Branch and bound ・ Branch and cut ・ Branch and price ・ Branch Area Career Center ・ Branch attachment ・ Branch Avenue ・ Branch Avenue station ・ Branch Back Brook ・ Branch Banking (Wilson, North Carolina) ・ Branch Barrett Rickey ・ Branch Bocock 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 Branch (computer science) ： ウィキペディア英語版 Branch (computer science) A branch is an instruction in a computer program that can cause a computer to begin executing a different instruction sequence and thus deviate from its default behavior of executing instructions in order. Branch (or ''branching'', ''branched'') may also refer to the act of switching execution to a different instruction sequence as a result of executing a branch instruction. A branch instruction can be either an ''unconditional branch'', which always results in branching, or a ''conditional branch'', which may or may not cause branching, depending on some condition. Branch instructions are used to implement control flow in program loops and conditionals (i.e., executing a particular sequence of instructions only if certain conditions are satisfied). ==Implementation== The term ''branch'' can be used when referring to programs in high level languages as well as program written in machine code or assembly language. In high-level programming languages, branches usually take the form of conditional statements of various forms that encapsulate the instruction sequence that will be executed if the conditions are satisfied. Unconditional branch instructions such as GOTO are used to unconditionally "jump" to (begin execution of) a different instruction sequence. Machine level branch instructions are sometimes called ''jump'' instructions. Machine level jump instructions typically have ''unconditional'' and ''conditional'' forms where the latter may be ''taken'' or ''not taken'' depending on some condition. The truthness of this condition is typically evaluated and temporarily stored by some previous instruction (though not necessarily the one ''immediately'' before) and then used such as in ''jump if overflow-flag set''. This temporary information is often stored in a flag register but may also be located elsewhere. There are also machines (or particular instructions) where the condition may be checked by the jump instruction itself, such as ''branch if register X negative''. When a branch is ''taken'', the next instruction executed is defined by the argument to the jump instruction; when ''not'' taken, the next instruction executed is the instruction immediately following the jump instruction in memory so that the flow of control is unchanged. Depending on computer architecture, the assembly language mnemonic for a jump instruction is typically some shortened form of the word ''jump'' or the word ''branch'', often along with other informative letters (or an extra parameter) representing the condition. Sometimes other details are included as well, such as the range of the jump (the offset size) or a special addressing mode that should be used to locate the actual effective offset. 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「Branch (computer science)」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.