My expectation is that it prints a string, but nothing is printed out. When I make the string shorter, it sometimes works, and when I make them longer again, it works sometimes.
Okay so I have a C++ fu开发者_运维技巧nction in which I am trying to use inline assembly void ToggleBit(unsigned char &Byte, unsigned int Bit)
Me and my friend开发者_高级运维 were brainstorming about a question concerning physical memory addressing in real mode and we couldn\'t wrap our heads around it. Here goes.
i got this question in my exam today and i wrote some code for it.i would like you to tell me where did i go wrong.
I am using Visual Studio 2010 professional, and I just checked in debug mode that BSF is not working I tried a lot of combinations, none of them worked!
I have the following environment: Windows 7 Ultimate 64-bit MS office (with Access) 2010 64-bit I am developing an application in VS 2010 and the application is being developed for x86 CPU.
If we consider two registers ax and bx, how do we swap their contents in Intel IA-32 just by using push and 开发者_高级运维pop? I\'m not allowed to use xchg.
I\'m writing a multiplatform ncurses text adventure game. The required C library, ncursesw, is configured for x86, but my OS is Mac OS X 10.6.6 x86_64.
btr,bts instruction is simple and it\'s can lock the share resource. Why does the instruction cmpxchg exist? What\'s the differ开发者_JS百科ent between these two instructions?IIRC (it\'s been a whil
In my C code there are some inlined assembly calling PCI BIOS service. Now the problem is that one of the results is returned in the %ah reg开发者_如何学编程ister, but I can\'t find a constrant to ref
加载中,请稍侯......