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Few words about Linux and embedded devices

Few words about Linux and embedded devices. The language of our ancestors. April 15, 2013. Years ago, I have learned x86 assembly. I have lot of time, and it was a pleasure to dive into the low level programming. Programming in assembly is quite easy, however tons of code are required to do simple things. So it is very inefficient to solve simple problems in assembly, and it is even more inefficient to solve complicated problems in assembly. Who uses the assembly language today? After the publication I h...

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Few words about Linux and embedded devices | 4embedded.wordpress.com Reviews

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Few words about Linux and embedded devices. The language of our ancestors. April 15, 2013. Years ago, I have learned x86 assembly. I have lot of time, and it was a pleasure to dive into the low level programming. Programming in assembly is quite easy, however tons of code are required to do simple things. So it is very inefficient to solve simple problems in assembly, and it is even more inefficient to solve complicated problems in assembly. Who uses the assembly language today? After the publication I h...

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Few words about Linux and embedded devices | 4embedded.wordpress.com Reviews

https://4embedded.wordpress.com

Few words about Linux and embedded devices. The language of our ancestors. April 15, 2013. Years ago, I have learned x86 assembly. I have lot of time, and it was a pleasure to dive into the low level programming. Programming in assembly is quite easy, however tons of code are required to do simple things. So it is very inefficient to solve simple problems in assembly, and it is even more inefficient to solve complicated problems in assembly. Who uses the assembly language today? After the publication I h...

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4embedded.wordpress.com

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The language of our ancestors | Few words about Linux and embedded devices

https://4embedded.wordpress.com/2013/04/15/the-language-of-our-ancestors

Few words about Linux and embedded devices. The language of our ancestors. April 15, 2013. Years ago, I have learned x86 assembly. I have lot of time, and it was a pleasure to dive into the low level programming. Programming in assembly is quite easy, however tons of code are required to do simple things. So it is very inefficient to solve simple problems in assembly, and it is even more inefficient to solve complicated problems in assembly. Who uses the assembly language today? After the publication I h...

2

Performance matters. | Few words about Linux and embedded devices

https://4embedded.wordpress.com/2013/04/09/performance-matters

Few words about Linux and embedded devices. Kexec – using kexec system call to update live UBIFS root filesystem. The language of our ancestors →. April 9, 2013. I have recently played participated in Olimex Weekend Programming Challenge ( http:/ olimex.wordpress.com/2013/04/05/weekend-programming-challenge-issue-3/. I have coded my solution in Python, and created custom C module to speed up string decomposition. As you can see execution time raises linearly with the number of characters in the input file.

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kexec – using kexec system call to update live UBIFS root filesystem | Few words about Linux and embedded devices

https://4embedded.wordpress.com/2012/02/27/kexec-using-kexec-system-to-update-live-ubifs-root-filesystem

Few words about Linux and embedded devices. MPLAB X – force build process to use more than one thread. Performance matters. →. Kexec – using kexec system call to update live UBIFS root filesystem. February 27, 2012. There are few ways to do it:. Reboot the device and start it from different (minimal) flash partition as root filesystem (you have to maintain two root filesystems, the real one, and the minimal one used for update),. Create file for temporary file system. Create required directory structure.

4

MPLAB X – force build process to use more than one thread | Few words about Linux and embedded devices

https://4embedded.wordpress.com/2011/04/26/mplab-x-build-process-use-more-then-one-core

Few words about Linux and embedded devices. Oracle 10g, Xen, and Squeeze. Kexec – using kexec system call to update live UBIFS root filesystem →. MPLAB X – force build process to use more than one thread. April 26, 2011. Make-bin.exe -j 10 %*. Where 10 is count of threads build process should spawn. It didn’t work. MPLAB X calls CreateProcess to execute make.exe, the make.exe have to be binary executable in PE format. I compiled simple wrapper:. And replaced make.exe with it. Oracle 10g, Xen, and Squeeze.

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Oracle 10g, Xen, and Squeeze | Few words about Linux and embedded devices

https://4embedded.wordpress.com/2011/04/24/oracle-10g-xen-and-squeeze

Few words about Linux and embedded devices. MPLAB X – force build process to use more than one thread →. Oracle 10g, Xen, and Squeeze. April 24, 2011. Debian Wiki entry is good starting point for installation: http:/ wiki.debian.org/DataBase/Oracle. Another interesting tutorial is here: http:/ www.linuxinsight.com/oracle10g on debian.html. Important points to take care of:. Create .profile file for. Umask 0022 export ORACLE BASE=/opt/oracle/ export ORACLE HOME=/opt/oracle/product/10.2.0/db 1 expo...MPLAB...

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4embedded.wordpress.com

Few words about Linux and embedded devices

Few words about Linux and embedded devices. The language of our ancestors. April 15, 2013. Years ago, I have learned x86 assembly. I have lot of time, and it was a pleasure to dive into the low level programming. Programming in assembly is quite easy, however tons of code are required to do simple things. So it is very inefficient to solve simple problems in assembly, and it is even more inefficient to solve complicated problems in assembly. Who uses the assembly language today? After the publication I h...

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