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[PATCH] aarch64: Add support for the fpmr system register

Claudio Bantaloukas claudio.bantaloukas@arm.com
Fri Apr 26 15:00:26 GMT 2024 
AArch64 defines a read-write system register called fpmr.
This floating point mode register controls behaviours of the FP8 instructions.
This patch adds support for reading and writing along with relevant tests.
Regression tested on the aarch64-none-elf and aarch64-none-linux-gnu targets
and no regressions were found.

---

Hi,

Is this Ok for master? I do not have commit rights, if OK, can someone commit on my behalf please?

Thanks,
Claudio Bantaloukas

 .../gas/aarch64/sysreg/fp8-feature-enables-fpmr.d    | 12 ++++++++++++
 .../gas/aarch64/sysreg/fpmr-unsupported-by-default.d |  4 ++++
 .../gas/aarch64/sysreg/fpmr-unsupported-by-default.l |  3 +++
 gas/testsuite/gas/aarch64/sysreg/fpmr.s              |  4 ++++
 opcodes/aarch64-sys-regs.def                         |  1 +
 5 files changed, 24 insertions(+)
 create mode 100644 gas/testsuite/gas/aarch64/sysreg/fp8-feature-enables-fpmr.d
 create mode 100644 gas/testsuite/gas/aarch64/sysreg/fpmr-unsupported-by-default.d
 create mode 100644 gas/testsuite/gas/aarch64/sysreg/fpmr-unsupported-by-default.l
 create mode 100644 gas/testsuite/gas/aarch64/sysreg/fpmr.s

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