zephyr

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1.7 GiB

Branch: main

Commit Graph

Author	SHA1	Message	Date
Martin Åberg	53a4acb2dc	SPARC: add FPU support This change adds full shared floating point support for the SPARC architecture. All SPARC floating point registers are scratch registers with respect to function call boundaries. That means we only have to save floating point registers when switching threads in ISR. The registers are stored to the corresponding thread stack. FPU is disabled when calling ISR. Any attempt to use FPU in ISR will generate the fp_disabled trap which causes Zephyr fatal error. - This commit adds no new thread state. - All FPU contest save/restore is synchronous and lazy FPU context switch is not implemented. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>	5 years ago
Martin Åberg	f8d1a9e5ea	cmake: Added SPARC support This commit defines the tool prefix and command line options for the Zephyr SPARC architectural port. Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>	5 years ago

Author

SHA1

Message

Date

Martin Åberg

53a4acb2dc

SPARC: add FPU support

This change adds full shared floating point support for the SPARC
architecture.

All SPARC floating point registers are scratch registers with respect
to function call boundaries. That means we only have to save floating
point registers when switching threads in ISR. The registers are
stored to the corresponding thread stack.

FPU is disabled when calling ISR. Any attempt to use FPU in ISR
will generate the fp_disabled trap which causes Zephyr fatal error.

- This commit adds no new thread state.
- All FPU contest save/restore is synchronous and lazy FPU context
  switch is not implemented.

Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>

5 years ago

Martin Åberg

f8d1a9e5ea

cmake: Added SPARC support

This commit defines the tool prefix and command line options for the
Zephyr SPARC architectural port.

Signed-off-by: Martin Åberg <martin.aberg@gaisler.com>

5 years ago

2 Commits (main)