diff options
Diffstat (limited to 'qtmips_machine/instruction.cpp')
| -rw-r--r-- | qtmips_machine/instruction.cpp | 131 |
1 files changed, 129 insertions, 2 deletions
diff --git a/qtmips_machine/instruction.cpp b/qtmips_machine/instruction.cpp index 41cfb5c..3b5f567 100644 --- a/qtmips_machine/instruction.cpp +++ b/qtmips_machine/instruction.cpp @@ -437,7 +437,129 @@ static const struct InstructionMap regimm_instruction_map[] = { IM_UNKNOWN, IM_UNKNOWN, {"SYNCI", IT_I, ALU_OP_ADDU, AC_CACHE_OP, nullptr, // SYNCI - .flags = IMF_SUPPORTED | IMF_BJR_REQ_RS}, + .flags = IMF_SUPPORTED | IMF_STOP_IF | IMF_BJR_REQ_RS}, +}; + +static const struct InstructionMap cop0_func_instruction_map[] = { + IM_UNKNOWN, // 0 + IM_UNKNOWN, // 1 + IM_UNKNOWN, // 2 + IM_UNKNOWN, // 3 + IM_UNKNOWN, // 4 + IM_UNKNOWN, // 5 + IM_UNKNOWN, // 6 + IM_UNKNOWN, // 7 + IM_UNKNOWN, // 8 + IM_UNKNOWN, // 9 + IM_UNKNOWN, // 10 + IM_UNKNOWN, // 11 + IM_UNKNOWN, // 12 + IM_UNKNOWN, // 13 + IM_UNKNOWN, // 14 + IM_UNKNOWN, // 15 + IM_UNKNOWN, // 16 + IM_UNKNOWN, // 17 + IM_UNKNOWN, // 18 + IM_UNKNOWN, // 19 + IM_UNKNOWN, // 20 + IM_UNKNOWN, // 21 + IM_UNKNOWN, // 22 + IM_UNKNOWN, // 23 + {"ERET", IT_I, ALU_OP_ERET, NOMEM, nullptr, + .flags = IMF_SUPPORTED | IMF_STOP_IF}, + IM_UNKNOWN, // 25 + IM_UNKNOWN, // 26 + IM_UNKNOWN, // 27 + IM_UNKNOWN, // 28 + IM_UNKNOWN, // 29 + IM_UNKNOWN, // 30 + IM_UNKNOWN, // 31 + IM_UNKNOWN, // 32 + IM_UNKNOWN, // 33 + IM_UNKNOWN, // 34 + IM_UNKNOWN, // 35 + IM_UNKNOWN, // 36 + IM_UNKNOWN, // 37 + IM_UNKNOWN, // 38 + IM_UNKNOWN, // 39 + IM_UNKNOWN, // 40 + IM_UNKNOWN, // 41 + IM_UNKNOWN, // 42 + IM_UNKNOWN, // 43 + IM_UNKNOWN, // 44 + IM_UNKNOWN, // 45 + IM_UNKNOWN, // 46 + IM_UNKNOWN, // 47 + IM_UNKNOWN, // 48 + IM_UNKNOWN, // 49 + IM_UNKNOWN, // 50 + IM_UNKNOWN, // 51 + IM_UNKNOWN, // 52 + IM_UNKNOWN, // 53 + IM_UNKNOWN, // 54 + IM_UNKNOWN, // 55 + IM_UNKNOWN, // 56 + IM_UNKNOWN, // 57 + IM_UNKNOWN, // 58 + IM_UNKNOWN, // 59 + IM_UNKNOWN, // 60 + IM_UNKNOWN, // 61 + IM_UNKNOWN, // 62 + IM_UNKNOWN, // 63 +}; + +static const struct InstructionMap cop0_instruction_map[] = { + {"MFC0", IT_I, ALU_OP_MFC0, NOMEM, nullptr, + .flags = IMF_SUPPORTED | IMF_REGWRITE}, + IM_UNKNOWN, // 1 + IM_UNKNOWN, // 2 MFH + IM_UNKNOWN, // 3 + {"MTC0", IT_I, ALU_OP_MTC0, NOMEM, nullptr, + .flags = IMF_SUPPORTED | IMF_ALU_REQ_RT}, + IM_UNKNOWN, // 5 + IM_UNKNOWN, // 6 MTH + IM_UNKNOWN, // 7 + IM_UNKNOWN, // 8 + IM_UNKNOWN, // 9 + IM_UNKNOWN, // 10 RDPGPR + {"MFMC0", IT_I, ALU_OP_MFMC0, NOMEM, nullptr, + .flags = IMF_SUPPORTED | IMF_REGWRITE}, + IM_UNKNOWN, // 12 + IM_UNKNOWN, // 13 + IM_UNKNOWN, // 13 WRPGPR + IM_UNKNOWN, // 15 + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, + {"C0", IT_I, NOALU, NOMEM, cop0_func_instruction_map, + .flags = IMF_SUB_ENCODE(6, 0)}, }; const std::int32_t instruction_map_opcode_field = IMF_SUB_ENCODE(6, 26); @@ -476,7 +598,8 @@ static const struct InstructionMap instruction_map[] = { .flags = FLAGS_ALU_I_ZE}, {"LUI", IT_I, ALU_OP_LUI, NOMEM, nullptr, // LUI .flags = FLAGS_ALU_I_NO_RS}, - IM_UNKNOWN, // 16 + {"COP0", IT_I, NOALU, NOMEM, cop0_instruction_map, // COP0 + .flags = IMF_SUB_ENCODE(5, 21)}, IM_UNKNOWN, // 17 IM_UNKNOWN, // 18 IM_UNKNOWN, // 19 @@ -636,6 +759,10 @@ std::uint8_t Instruction::funct() const { return (std::uint8_t) MASK(6, 0); } +std::uint8_t Instruction::cop0sel() const { + return (std::uint8_t) MASK(3, 0); +} + std::uint16_t Instruction::immediate() const { return (std::uint16_t) MASK(16, 0); } |