64 bit CPU unsigned long int
location: linuxquestions.com - date: March 28, 2005
Please correct me if im wrong...
In a 32 bit CPU, the "unsigned long int" data type has a max value of
In a 64 bit CPU (AMD64 for example), will the "unsigned long int" data type
have a max value of (2^64)-1?
I am working on a Solaris Sparc III machine which consists of 64 bit CPUS. However, the unsigned long int number appears to be restricted to the legacy 2^32 size. This may be due to admin configuration (not my server). Any information would be appreciated.
Switch from 32bit mode to 64 bit (long mode) on 64bit linux
location: linuxexchange.com - date: June 9, 2014
My program is in 32bit mode running on x86_64 CPU (64bit OS, ubuntu 8.04). Is it possible to switch to 64bit mode (long mode) in user mode temporarily? If so, how?
Background story: I'm writing a library linked with 32bit mode program, so it must be 32bit mode at start. However, I'd like to use faster x86_64 intructions for better performance. So I want to switch to 64bit mode do some pure computation (no OS interaction; no need 64bit addressing) and come back to 32bit before returning to caller.
I found there are some related but different questions. For example,
run 32 bit code in 64 bit program
run 64 bit code in 32 bit OS
My question is "run 64 bit code in 32 bit program, 64 bit OS"
[SOLVED] Where is gone libjavapluginoji.so on linux 64 system?
location: linuxquestions.com - date: September 5, 2010
I use the package taken directly from java and when yesterday i decided to upgrade from jdk 1.6.0_18 to 1.6.0_21 i don't find this file.
Happen the same thing that happen with flash?
Where isn't more present the 64 bit version?
Now i installed the same version of Java on a 32 bit linux system and i noticed that for that system that plugin is present.
Running Linux 64 bit applications on 32 bit Linux OS
location: linuxquestions.com - date: February 24, 2007
I have 32 bit linux OS on which i was running my applications related to my project development. Now these applications has been generated on 64 bit OS and for the time being, i donot wnat to upgrade my hardware to 64 bit.
Please suggest the possible ways in which I can run my 64 bit applications on 32 bit linux OS and hardware.
sha256 not working on Linux 64 bit system
location: linuxquestions.com - date: May 27, 2008
I am using sha256 to calculate the hash of a file on linux 32 bit systems. The hash value is stored in the file at the time of file creation itself.
Whenever, we need to access the file, we verify the authenticity of the file, for which we recalculate the hash of the file and match it with the stored value.
This works fine on Linux 32 bit system. This was the history bit!
Now the issue is that the sha256 implementation is not working correctly on Linux AMD 64 bit system. The sha256 generates a different hash value for the same file when called twice.
Can anybody suggest what changes need to be made to help it work fine on 64 bit systems.
Kindly note that we are using in house implementation of the sha256. and for security reasons cannot share the sha256 implementation being used
how to run tibco 32 bit in linux 64 bit
location: linuxquestions.com - date: June 28, 2012
i am using lighthouse(puppy Linux)its a 64 bit OS which has a lib 32 in built.when we run tibco 32 bit application in live cd.
its working .when i installed this live cd to hard disk.its not executing 32 bit tibco.it shows "such file or directroy not exist".
Is any thing missing during installation?
etc/ld.so.conf" file are having same path reference in live cd and hdd
any thoughts on this ?
Downloading a Flash Player or Linux 64 Bit
location: linuxquestions.com - date: February 17, 2014
Here is my question, I am new to Linux and I can not watch movies, it keeps asking me for a Flash player. I tried to install Adobe Flash but I have Linux under Mozilla FireFox. I do not know how to install it. I even went under Google Chrome and they charged me, I do not even know what i ordered. I used to be able to watch movies, not sure what happened. Can you help? Thank you. Calligirl
Macromedia Flash Player for Mandriva Linux 64 bit program
- date: December 9, 2005
I am working with Mandriva Linux 2006 program. It works fine. It is the 64 bit version. I have difficulty in viewing some aspects from the browser. It asks me to install the Macromedia Flash Player. The decompression of the tar
ball worked fine and it created a directory.
I can't install the Macromedia Flash Player. Please read the following:
Desktop]# cd 'install_flash_player_7_linux/'
ERROR: Your architecture, \'x86_64\', is not supported by the
Macromedia Flash Player installer.
I just followed the instructions from the following site.
Could you please help me to install the Macromedia Flash Player? Probably
I have to download the 64 bit version of the tarball. How can I find it
printf unsigned long long int?
location: linuxquestions.com - date: January 5, 2005
how do I printf an unsigned long long int( aka uint64_t ).
%s for string
%??? for unsigned long long int?
Linux, 64 bit and >3Gb of memory
location: linuxquestions.com - date: March 26, 2008
For the last few days I've been trying to install Linux on several PCs, without any success however.
All the systems I use are fine (seen from a hardware point of view). However, I cannot install any Linux version on them, as soon as they are equipped with more than 3Gb of internal memory.
I have tried several distributions: Ubuntu 7.10 AMD64, CentOS 5.1 AMD64, Debian 4.0 AMD64 etc. All the hardware I use does support >3Gb of memory, without using PAE / memory remapping (!). Used CPUs are Intel Core 2 series (E6420, E6600, Q6600). All the systems run fine with 64 bit XP or Vista, so I figure that if a Microsoft product can run fine, Linux should work like a charm :-).
All the Linux versions I tried work on a 8Gb dual Xeon system.
I guess there's some difference in the memory addressing between the desktop and the server systems.
Still, I need to get the desktop systems to work with a reasonable amount of memory (8Gb); how can this be done?
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