This commit adds a short note in reference/kernel/other/float.
The note instructs to apply pre-tagging of ARM threads to
indicate that they indend to use the FP services.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
The Quark D2000 is the only x86 with an MVIC, and since support for
it has been dropped, the interrupt controller is orphaned. Removed.
Signed-off-by: Charles E. Youse <charles.youse@intel.com>
This commit rewrites the documentation section describing
the Shared FP registers mode for Cortex-M to align with the
latest architecture rework of Shared FP mode.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
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>
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>
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>
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>
