Commit Graph

4 Commits

Author SHA1 Message Date
Ioannis Glaropoulos
1a2ef42973 arch: arm: remove FP activation in system boot
This commit removes the activation of the FP context
in ARM system boot. There is no need to do this, since
the FP context will be activated in the presence of
floating point instructions. We update the reference
documentation accordingly.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2019-05-03 14:25:22 -04:00
Ioannis Glaropoulos
3bc0f88653 doc: kernel: float: fix ARM-specific content
This commit updates the documentation as follows:
- stresses that the lazy stacking preservation is disabled
  by default and not supported in ARM Cortex-M builds,
- corrects the figure of extra stack requirement when
  floating point services are enabled in ARM builds.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2019-03-25 22:32:00 -04:00
Ioannis Glaropoulos
fd3c26a9f9 doc: kernel: float: several content fixes
This commit provides the following fixes:
- Corrects the note regarding which ARM MCUs may support
  floating point services
- Rewords the text stressing the undefined behavior when
  multiple threads access the floating point registers.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
2019-03-25 22:32:00 -04:00
Anas Nashif
d6f72a67fc doc: introduce final structure
Move guides and APIs into separate directories and cleanup naming
introducing index files rather than named section files.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-02-05 07:04:40 -05:00