位操作 [
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bit manipulation
- 开始我尝试着自己做位操作,结果不仅仅是难处理,而且速度极慢。
I started out trying to do my own bit operations, which were not only unwieldy, but also extremely slow. - 本文深入介绍了指令周期计算、位操作和其他一些汇编语言不能很好处理的细微区别。
This article dives into the depths of instruction-cycle-counting, bit manipulation, and other nuances that assembly language has typically been notorious for. - 例如,假设您在一个整型变量中执行某个位操作,并预期其大小为 4:这并非在所有操作系统平台上都是如此(请参见清单 7)。
For example, suppose you do some bit manipulation in an integer variable and expect it to be of size 4: This may not be the case on all operating system platforms (see Listing 7).
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