Binary negative Number:The original code is the original representation methodAnti-code is the inverse of the sign bit (highest bit)Complement = anti-code +1 1 bytes It can only represent 256 numbers anyway, because there is a sign, so we're going
For ix86 programming, sometimes it is necessary to change from the real mode to the protection mode (for example, to access extended memory in the DOS era, or to write pilot code, of course, if you program in a 32-bit operating system, you won't be
Http://blog.csdn.net/zhongzhiwei/article/details/8678885
1) What is the difference between a 64-bit system and a 32-bit system?
1. 64-bit CPU has greater addressing capability and supports up to 16 GB memory, while 32-bit only supports 4 GB memory
2.
Original URL: http://www.ibm.com/developerworks/cn/linux/l-port64.htmlWith the popularity of 64-bit architectures, preparing your Linux® software for 64-bit systems has become more important than ever. In this article, you'll learn how to prevent
Tips and Techniques for porting Linux applications to a 64-bit system for smooth migration & nbsp; Linux is one of the cross-platform operating systems that can use a 64-bit processor, currently, 64-bit systems are very common on servers and
Port a Linux application to a 64-bit SystemTips and techniques for smooth migration Linux is one of the cross-platform operating systems that can use 64-bit processors. Currently, 64-bit systems are very common on servers and desktops. Many
Start with the problem
# IncludeVoid main (){Union{Struct{Unsigned short s1: 3;Unsigned short s2: 3;Unsigned short s3: 3;} X;Char c;} V;
V. c = 100;Printf ("% d/n", v. x. s3 );}A: 4 B: 0 C: 3 D: 6The answer is.
But the answer I run in TURBO C is
A problem occurs when a program running properly on a 32-bit machine fails on a 64-bit machine. So I found this article about transplantation and took a good look.
Original post address: http://queniao.blog.51cto.com/10636/126564
In fact, there is
Copy codeThe Code is as follows: # include
Int main (int argc, char * argv [])
{
Unsigned int max_int = 0-1;
Printf ("The max value of unsigned int on 32 machine: % u/n", max_int );
}
Copy codeThe Code is as follows: # include Int main (int argc,
Copy Code code as follows:
#include
int main (int argc, char *argv[])
{
unsigned int max_int = 0-1;
printf ("The max value of unsigned int on machine:%u/n", max_int);
}
Copy Code code as follows:
#include
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