[0/6] MIPS decodetree conversion

Message

Jiaxun Yang Oct. 24, 2022, 3:23 p.m. UTC

Currently only MIPS I to MIPS Release 5 arithmatic functions are converted.
Old decoding functions are perserved in codebase for now due to dependencies
from microMIPS/nanoMIPS translation code. Will remove them after dealing with
release 6.

Both instruction encoding and test cases are generated form MIPS's internal
architecture validation tools so they are gureented to be correct.

Note:
There are some checkpatch warning/error on test cases but I'm not going to
touch them as they are generated code.

Thanks.

RFC->v1:
 - Tidy up test cases
 - Convert TX79 as well

- Jiaxun
Jiaxun Yang (6):
  target/mips: Introduce register access helper functions
  target/mips: Convert legacy arithmatic instructions to decodetree
  tests/tcg/mips: Add mips32 arithmatic instruction test cases
  target/mips: Split Loongson extention translation into standalone file
  target/mips: Move all tx79 instructions to decodetree
  target/mips: Make MXU decoder standalone

 target/mips/tcg/insn_trans/trans_arith.c.inc  |  352 +++
 target/mips/tcg/legacy.decode                 |   62 +
 target/mips/tcg/loongson_translate.c          | 1290 +++++++++++
 target/mips/tcg/meson.build                   |    2 +
 target/mips/tcg/mxu_translate.c               |   98 +-
 target/mips/tcg/translate.c                   | 1917 ++---------------
 target/mips/tcg/translate.h                   |   60 +
 target/mips/tcg/tx79.decode                   |   14 +
 target/mips/tcg/tx79_translate.c              |  205 +-
 tests/tcg/mips/include/test_utils_32.h        |   75 +
 .../tcg/mips/user/isa/mips32/arithmatic/add.c |   99 +
 .../mips/user/isa/mips32/arithmatic/addi.c    |   70 +
 .../mips/user/isa/mips32/arithmatic/addiu.c   |   90 +
 .../mips/user/isa/mips32/arithmatic/addu.c    |  125 ++
 .../tcg/mips/user/isa/mips32/arithmatic/div.c |   81 +
 .../mips/user/isa/mips32/arithmatic/divu.c    |   78 +
 .../mips/user/isa/mips32/arithmatic/madd.c    |   79 +
 .../mips/user/isa/mips32/arithmatic/maddu.c   |   78 +
 .../mips/user/isa/mips32/arithmatic/msub.c    |   78 +
 .../mips/user/isa/mips32/arithmatic/msubu.c   |   78 +
 .../tcg/mips/user/isa/mips32/arithmatic/mul.c |   78 +
 .../mips/user/isa/mips32/arithmatic/mult.c    |   78 +
 .../mips/user/isa/mips32/arithmatic/multu.c   |   78 +
 .../tcg/mips/user/isa/mips32/arithmatic/slt.c |   61 +
 .../mips/user/isa/mips32/arithmatic/slti.c    |   48 +
 .../mips/user/isa/mips32/arithmatic/sltiu.c   |   48 +
 .../mips/user/isa/mips32/arithmatic/sltu.c    |   61 +
 .../tcg/mips/user/isa/mips32/arithmatic/sub.c |  104 +
 .../mips/user/isa/mips32/arithmatic/subu.c    |  108 +
 29 files changed, 3865 insertions(+), 1730 deletions(-)
 create mode 100644 target/mips/tcg/insn_trans/trans_arith.c.inc
 create mode 100644 target/mips/tcg/legacy.decode
 create mode 100644 target/mips/tcg/loongson_translate.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/add.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/addi.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/addiu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/addu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/div.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/divu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/madd.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/maddu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/msub.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/msubu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/mul.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/mult.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/multu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/slt.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/slti.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/sltiu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/sltu.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/sub.c
 create mode 100644 tests/tcg/mips/user/isa/mips32/arithmatic/subu.c