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qemu/target/loongarch
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Richard Henderson c2b618a8c1 target/loongarch: Disassemble jirl properly 
While jirl shares the same instruction format as bne etc,
it is not assembled the same.  In particular, rd is printed
first not second and the immediate is not pc-relative.

Decode into the arg_rr_i structure, which prints correctly.
This changes the "offs" member to "imm", to update translate.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-01-23 15:36:36 -10:00
..
insn_trans target/loongarch: Disassemble jirl properly 2023-01-23 15:36:36 -10:00
constant_timer.c target/loongarch: Add constant timer support 2022-06-06 18:09:03 +00:00
cpu-csr.h target/loongarch: Add CSRs definition 2022-06-06 18:09:03 +00:00
cpu-param.h target/loongarch: Add MMU support for LoongArch CPU. 2022-06-06 18:09:03 +00:00
cpu.c target/loongarch: Convert to 3-phase reset 2022-12-16 15:58:15 +00:00
cpu.h target/loongarch: Convert to 3-phase reset 2022-12-16 15:58:15 +00:00
csr_helper.c target/loongarch: Add lock when writing timer clear reg 2022-07-04 11:08:58 +05:30
disas.c target/loongarch: Disassemble jirl properly 2023-01-23 15:36:36 -10:00
fpu_helper.c target/loongarch: Remove cpu_fcsr0 2022-08-08 19:42:53 -07:00
gdbstub.c target/loongarch: Update gdb_set_fpu() and gdb_get_fpu() 2022-08-05 10:02:40 -07:00
helper.h target/loongarch: Remove cpu_fcsr0 2022-08-08 19:42:53 -07:00
insns.decode target/loongarch: Disassemble jirl properly 2023-01-23 15:36:36 -10:00
internals.h target/loongarch: Update gdb_set_fpu() and gdb_get_fpu() 2022-08-05 10:02:40 -07:00
iocsr_helper.c hw/intc: Fix LoongArch extioi coreisr accessing 2022-11-04 17:07:40 +08:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
machine.c target/loongarch: Add MMU support for LoongArch CPU. 2022-06-06 18:09:03 +00:00
meson.build target/loongarch: Enable the disassembler for host tcg 2023-01-23 15:36:36 -10:00
op_helper.c target/loongarch/op_helper: Fix coverity cond_at_most error 2022-07-19 21:53:58 +05:30
README docs/system/loongarch: Update the LoongArch document 2022-08-13 04:45:03 -07:00
tlb_helper.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
translate.c target/loongarch: Separate the hardware flags into MMU index and PLV 2022-11-07 10:54:08 +08:00
translate.h target/loongarch: Separate the hardware flags into MMU index and PLV 2022-11-07 10:54:08 +08:00

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/