-
ajks
说明: 许多现代浮点单元的一项主要体系结构功能,是能够将一个乘法与后面紧跟的加法作为单个运算执 行,且没有中间舍入误差。例如,Intel 的 Itanium 体系结构提供了一些指令,将三元运算 (a*b+c) 、(a*b-c) 和 (c-a*b) 中的每一个都组合为单个浮点指令(分别为 fma、fms 和 fnma)。这些单个 指令都比执行独立的乘法和加法指令快,并且因为没有中间乘法舍入,所以更为精确。该优化可以显 著提高那些含有多个交错乘法和加法运算的函数的速度(many modern floating point unit of a major system structure and function is to be a follow closely behind multiplication and addition of implementation as a single operator, with no intermediate rounding error. For example, Intel's Itanium architecture provides a number of directives to the ternary operator (a* b, c), (a* b-c) and (c-a* b) each have a portfolio to a single floating point instructions (Fullmetal respectively, and fms fnma) . These individual instruction than the implementation of an independent and additive multiplication instructions quickly, and because no middle multiplication into homes, so more precise. The optimization can significantly increase those containing more than staggered multiplication and addition operations function of the speed)
- 2006-03-23 20:52:57下载
- 积分:1
-
clearall
精美的界面设计,Microsoft Visual C++ 6.0编写,可以用2005,2008什么的打开(Elegant interface design, Microsoft Visual C++ 6.0 to prepare, can be used to open what 2005,2008)
- 2009-02-26 23:19:58下载
- 积分:1
-
CPUHDmeter
纯VB代码实现的CPU仪表盘,很好的参考资料。(Pure VB code of the CPU dashboard, a good reference.)
- 2013-08-06 08:44:10下载
- 积分:1
-
SSD4_Exercise3
这是ssd4 exercise3的答案。(ssd4 exercise3)
- 2009-03-30 09:35:45下载
- 积分:1
-
DlgTest
演示MFC程序的编程方式,以及单文档多视图的实现方式(Demo MFC programming, and single-document multi-view)
- 2012-06-22 14:09:15下载
- 积分:1
-
multiply-viewport
采用vc++2005编写的程序,主要是关于VC多窗口的界面编程方法。(Introduce the MDI application in vc++2005.)
- 2014-08-30 12:14:13下载
- 积分:1
-
2014zkjz
鹅鹅鹅饿鹅鹅鹅饿鹅鹅鹅饿鹅鹅鹅饿鹅鹅鹅饿鹅鹅鹅饿鹅鹅鹅饿(may may may)
- 2013-10-17 22:35:30下载
- 积分:1
-
565566
扩展收缩对话框应用程序界面,VC++编程精选学习源码,很好的参考资料。(Expansion contraction dialog application program interface, VC++ programming featured learning source code, a good reference.)
- 2013-11-19 18:57:47下载
- 积分:1
-
TestGettickcount
在对话框中,使用VB6获取系统精确时钟数的简单小程序(in the dialog box, use VB6 acquisition system precision clock small number of simple procedures)
- 2007-03-14 23:13:53下载
- 积分:1
-
MFCleikuxiangjie
MFC类库详解,编写MFC程序时很有用的资料(Useful information in the MFC class library Detailed writing MFC program)
- 2012-05-10 09:15:04下载
- 积分:1