# floating point support **URL:** \ **Category:** Kernel\ **Created:** [May 7, 2007, 8:11am UTC](https://forums.freertos.org/t/floating-point-support/3159 "2007-05-07T08:11:30Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\ **Post date:** [May 7, 2007, 8:11am UTC](https://forums.freertos.org/t/floating-point-support/3159/1 "2007-05-07T08:11:30Z")
**nobody** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd): Hi everybody, sorry, but Iam a complete newbie on FreeRTOS here. My question is, does FreeRTOS support floating point math? I use the GCC on ARMSAM7x256. Thanks ---
**Author:** ![chaalar](https://avatars.discourse-cdn.com/v4/letter/c/d6d6ee/32.png) [@chaalar](https://forums.freertos.org/u/chaalar)\ **Post date:** [May 7, 2007, 8:16am UTC](https://forums.freertos.org/t/floating-point-support/3159/2 "2007-05-07T08:16:17Z")
**[chaalar](https://sourceforge.net/u/chaalar/)** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd/c664): FreeRTOS doesn’t but GCC does. 🙂 ---
**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\ **Post date:** [May 7, 2007, 8:49am UTC](https://forums.freertos.org/t/floating-point-support/3159/3 "2007-05-07T08:49:29Z")
**nobody** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd/822a): Hi Çağlar Akyüz thank you for your response. Do you know a trick to use floating points on FreeRTOS? Perhaps: stopping (freezing) RTOS and INTERRUPTS, then perform a floating point algorithm, go back to RTOS? Thanks in advance ---
**Author:** ![rtel](https://d3iykfbgfh8zhg.cloudfront.net/user_avatar/forums.freertos.org/rtel/32/31_2.png) [@rtel](https://forums.freertos.org/u/rtel)\ **Post date:** [May 7, 2007, 8:59am UTC](https://forums.freertos.org/t/floating-point-support/3159/4 "2007-05-07T08:59:33Z")
**[rtel](https://sourceforge.net/u/rtel/)** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd/822a/b20a): This would only be necessary if the floating point libraries are not re-entrant.  Do you know if this is the case or not?  I suspect they are re-entrant, in which case you do not need to take any special measures in order to use floating point from within a task (other than ensuring the task has enough stack space to call the library functions). Regards. ---
**Author:** ![chaalar](https://avatars.discourse-cdn.com/v4/letter/c/d6d6ee/32.png) [@chaalar](https://forums.freertos.org/u/chaalar)\ **Post date:** [May 7, 2007, 9:01am UTC](https://forums.freertos.org/t/floating-point-support/3159/5 "2007-05-07T09:01:55Z")
**[chaalar](https://sourceforge.net/u/chaalar/)** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd/5ff1): If you want to stop scheduler or interrupts you can but I don’t think it is something desirable. Besides it is something application specific. Moreover, SAM7X do not have a floating-point hardware. That’s make floating point code nothing different, from the rtos point of view. That’s a matter of fact for the compiler-library couple. What I want to say is just implement your favourite algorithm, measure the results. if you \*need\* more time then you can always think about disabling interrupts/scheduler. I hope I get the point. Best Regards ---
**Author:** ![system](https://d2v6vdsk2p900z.cloudfront.net/original/1X/7fc8fdb729c645aab5b20282bbe34e57cb407be6.jpeg) [@system](https://forums.freertos.org/u/system)\ **Post date:** [May 7, 2007, 9:48am UTC](https://forums.freertos.org/t/floating-point-support/3159/6 "2007-05-07T09:48:25Z")
**nobody** wrote on [Monday, May 07, 2007](https://sourceforge.net/p/freertos/discussion/382005/thread/8a60f4f1/#e2bd/ef3f): many thanks to Richard and Çağlar Akyüz. Great help for my next steps with FreeRTOS. Best Regards Michael