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Posted to notifications@mynewt.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2017/02/08 18:53:41 UTC

[jira] [Commented] (MYNEWT-581) support hw floating point with cortex-m4

    [ https://issues.apache.org/jira/browse/MYNEWT-581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858389#comment-15858389 ] 

ASF subversion and git services commented on MYNEWT-581:
--------------------------------------------------------

Commit 522d97b671b02b12ba0bb45c067b38a5cce5b26e in incubator-mynewt-core's branch refs/heads/develop from [~marko]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-mynewt-core.git;h=522d97b ]

MYNEWT-581; set compiler flags to use FPU when HARDFLOAT is set.


> support hw floating point with cortex-m4
> ----------------------------------------
>
>                 Key: MYNEWT-581
>                 URL: https://issues.apache.org/jira/browse/MYNEWT-581
>             Project: Mynewt
>          Issue Type: Improvement
>            Reporter: Marko Kiiskila
>            Assignee: Marko Kiiskila
>             Fix For: v1_0_0_rel
>
>
> Add a syscfg knob for this; hw floating point computations are faster, but enabling FPU eats more power/stack space.
> During context switching, swap in/out floating point registers.
> Pass appropriate parameters to compiler to enable floating point instruction generation.



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