06-07-2009
Is the physical memory on that embedded device so scarce that you need to roll your own for floats...also the memory savings will slow down your application because of all the extra CPU cycles needed to do the conversion. Can you say how much phys mem is going to be on that device. This wasn't an issue even a couple of decades ago when there was a real shortage of memory in embedded systems.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
As a formem unix newbe
I Just wanted to tell you about this cool site for all you confused people.
If you need to support more than one unix type:
Use this one. It's a life saver.
http://www.unixguide.net/unixguide.shtml
here (4 Replies)
Discussion started by: sunbird
4 Replies
2. Shell Programming and Scripting
Hello there,
i just want to know what are the different type of shells and the main difference betwee them. The problem is that if you try to search over the net you will find a lot of information and hence you will have no enough time to read all of them.....Anyone can help with this?? (1 Reply)
Discussion started by: charbel
1 Replies
3. Shell Programming and Scripting
Can one string type variable changed into the date type variable. (1 Reply)
Discussion started by: rinku
1 Replies
4. Programming
Dear colleagues,
One of my friend have a problem with c code. While compiling a c program it displays a message like
"array type has incomplete element type". Any body can provide a solution for it.
Jaganadh.G (1 Reply)
Discussion started by: jaganadh
1 Replies
5. Solaris
how to get the raid type of a mount if I am using solaris disksuite?
thanks (1 Reply)
Discussion started by: melanie_pfefer
1 Replies
6. UNIX for Dummies Questions & Answers
Hi,
Where can I find the encoding type in a unix server ?
Thanks in advance !!! (1 Reply)
Discussion started by: risshanth
1 Replies
7. UNIX for Dummies Questions & Answers
I would like to print value of key generate like this....
key_t k = ftok(".",'c');
printf("key is %d \n" , k);
Is there other way to print this type. I dont think I am getting right output which is
key is 1662074913 (shouldn't it be 6362074913) since 'c' is 63 in hex (ascii table).... (2 Replies)
Discussion started by: joker40
2 Replies
8. Windows & DOS: Issues & Discussions
Hello All
Is there a way I can find out the type of RAM (DDR1 or DDR2 or DDR3), I'm using withoout opening the cabinet?
Any Windows command?
Thanks in advance. (5 Replies)
Discussion started by: tenderfoot
5 Replies
9. Programming
In C++, how can I change the type with another name
For example
How can I declaring an object real which would be the same as declaring it float (5 Replies)
Discussion started by: kristinu
5 Replies
MEM(4) Linux Programmer's Manual MEM(4)
NAME
mem, kmem, port - system memory, kernel memory and system ports
DESCRIPTION
mem is a character device file that is an image of the main memory of the computer. It may be used, for example, to examine (and even
patch) the system.
Byte addresses in mem are interpreted as physical memory addresses. References to nonexistent locations cause errors to be returned.
Examining and patching is likely to lead to unexpected results when read-only or write-only bits are present.
It is typically created by:
mknod -m 660 /dev/mem c 1 1
chown root:kmem /dev/mem
The file kmem is the same as mem, except that the kernel virtual memory rather than physical memory is accessed.
It is typically created by:
mknod -m 640 /dev/kmem c 1 2
chown root:kmem /dev/kmem
port is similar to mem, but the I/O ports are accessed.
It is typically created by:
mknod -m 660 /dev/port c 1 4
chown root:mem /dev/port
FILES
/dev/mem
/dev/kmem
/dev/port
SEE ALSO
chown(1), mknod(1), ioperm(2)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 1992-11-21 MEM(4)