- cmsg cancel <npihrg$362$2@dont-email.me> - 2 Updates
- Read again my corrected post 2... - 1 Update
- Read again my corrected post... - 1 Update
| bleachbot <bleachbot@httrack.com>: Aug 24 12:14AM +0200 |
| bleachbot <bleachbot@httrack.com>: Aug 24 12:20AM +0200 |
| Ramine <ramine@1.1>: Aug 23 06:20PM -0400 Hello, Read again my corrected post... In this post i will explain to you what i have written as 64 bit assembler routines for my Stackful coroutines library.. But first comes first, why have i decided to implement this assembler routines of my stackful coroutines library ? I have decided to do it because i have learned how the operating system saves and restores the registers and the stacks when it works with threads , because coroutines are not far away from threads, you can learn a lot on implementing threads by imlementing coroutines.. Now what is the important advantages of my coroutines library? - Context switching is expensive with threads, with coroutines it is really fast. - Coroutines eliminate race conditions and that's really interesting on embedded systems and other applications. - My mutex and semaphore of my coroutines library are much much more faster than the mutex and semaphore used on processes and threads. Now how have i implemented it with 64 bit assembler routines? First you have to replace the RSP and RBP registers with a pointer to a dynamic allocated memory to be able to save the local variables of the coroutines. Second, you have to avoid to generate the stack frames to simplify the implementation in assembler, this will simplify the saving of the RBP register for example, and you have to search for the returned IP register address with the RSP register to to be able to return back from the yield() routine, other than that you have to save some registers and restores them back. You can download my Stackful coroutines library for Delphi and FreePascal from: https://sites.google.com/site/aminer68/stackful-coroutines-library-for-delphi-and-freepascal You can download my Object oriented Stackful coroutines library for Delphi and FreePascal from: https://sites.google.com/site/aminer68/object-oriented-stackful-coroutines-library-for-delphi-and-freepascal That's all for today. Thank you, Amine Moulay Ramdane. |
| Ramine <ramine@1.1>: Aug 23 06:16PM -0400 Hello, Read again my corrected post... In this post i will explain to you what i have writtenas 64 bit assembler routines for my Stackful coroutines library.. But first comes first, why have i decided to implement this assembler routines of my stackful coroutines library ? I have decided to do it because i have learned how the operating system saves and restores the registers and the stacks when it works with threads , because coroutines are not far away from threads, you can learn a lot on implementing threads by imlementing coroutines.. Now what is the important advantages of my coroutines library? - Context switching is expensive with threads, with coroutines it is really fast. - Coroutines eliminate race conditions and that's really interesting on embedded systems and other applications. - My mutex and semaphore of my coroutines library are much much more faster than the mutex and semaphore used on processes and threads. Now how have i implemented it with 64 bit assembler routines? First you have to replace the RSP and RBP registers with a pointer to a dynamic allocated memory to be able to save the local variables of the coroutines. Second, you have to avoid to generate the stack frames to simplify the implementation in assembler, this will simplify the saving of the RBP register for example, and you have to search for the returned IP register address with the RSP register to to be able to return back from the yield() routine, other than that you have to save some registers and restores them back. You can download my Stackful coroutines library for Delphi and FreePascal from: https://sites.google.com/site/aminer68/stackful-coroutines-library-for-delphi-and-freepascal You can download my Object oriented Stackful coroutines library for Delphi and FreePascal from: https://sites.google.com/site/aminer68/object-oriented-stackful-coroutines-library-for-delphi-and-freepascal That's all for today. Thank you, Amine Moulay Ramdane. |
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