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1bb5257def
Set the 2-NaN propagation rule explicitly in the float_status word we
use.
(There are a couple of places in fpu_helper.c where we create a
dummy float_status word with "float_status *s = { };", but these
are only used for calling float*_is_quiet_nan() so it doesn't
matter that we don't set a 2-NaN propagation rule there.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241025141254.2141506-6-peter.maydell@linaro.org
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4 weeks ago | |
|---|---|---|
| .. | ||
| kvm | 1 month ago | |
| tcg | 4 weeks ago | |
| Kconfig | 3 years ago | |
| README | 2 years ago | |
| arch_dump.c | 2 months ago | |
| cpu-csr.h | 9 months ago | |
| cpu-param.h | 7 months ago | |
| cpu-qom.h | 1 year ago | |
| cpu.c | 1 month ago | |
| cpu.h | 1 month ago | |
| cpu_helper.c | 7 months ago | |
| disas.c | 9 months ago | |
| gdbstub.c | 2 months ago | |
| helper.h | 1 year ago | |
| insns.decode | 1 year ago | |
| internals.h | 3 months ago | |
| loongarch-qmp-cmds.c | 1 month ago | |
| machine.c | 1 month ago | |
| meson.build | 3 months ago | |
| trace-events | 11 months ago | |
| trace.h | 11 months ago | |
| translate.h | 1 year ago | |
| vec.h | 1 year ago | |
README
- Introduction
LoongArch is the general processor architecture of Loongson.
The following versions of the LoongArch core are supported
core: 3A5000
https://github.com/loongson/LoongArch-Documentation/releases/download/2021.08.17/LoongArch-Vol1-v1.00-EN.pdf
We can get the latest loongarch documents at https://github.com/loongson/LoongArch-Documentation/tags.
- System emulation
You can reference docs/system/loongarch/loongson3.rst to get the information about system emulation of LoongArch.
- Linux-user emulation
We already support Linux user emulation. We can use LoongArch cross-tools to build LoongArch executables on X86 machines,
and We can also use qemu-loongarch64 to run LoongArch executables.
1. Config cross-tools env.
see System emulation.
2. Test tests/tcg/multiarch.
./configure --static --prefix=/usr --disable-werror --target-list="loongarch64-linux-user" --enable-debug
cd build
make && make check-tcg
3. Run LoongArch system basic command with loongarch-clfs-system.
- Config clfs env.
wget https://github.com/loongson/build-tools/releases/download/2022.05.29/loongarch64-clfs-system-5.0.tar.bz2
tar -vxf loongarch64-clfs-system-5.0.tar.bz2 -C /opt/clfs
cp /opt/clfs/lib64/ld-linux-loongarch-lp64d.so.1 /lib64
export LD_LIBRARY_PATH="/opt/clfs/lib64"
- Run LoongArch system basic command.
./qemu-loongarch64 /opt/clfs/usr/bin/bash
./qemu-loongarch64 /opt/clfs/usr/bin/ls
./qemu-loongarch64 /opt/clfs/usr/bin/pwd
- Note.
We can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/