diff options
Diffstat (limited to 'src/core/arm/dyncom')
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 59 |
1 files changed, 58 insertions, 1 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index b6b94b7a8..df698e8f1 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -2525,7 +2525,24 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sbc)(unsigned int inst, int index) } return inst_base; } -ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SEL"); } +ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index) +{ + arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst)); + generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component; + + inst_base->cond = BITS(inst, 28, 31); + inst_base->idx = index; + inst_base->br = NON_BRANCH; + inst_base->load_r15 = 0; + + inst_cream->Rm = BITS(inst, 0, 3); + inst_cream->Rn = BITS(inst, 16, 19); + inst_cream->Rd = BITS(inst, 12, 15); + inst_cream->op1 = BITS(inst, 20, 22); + inst_cream->op2 = BITS(inst, 5, 7); + + return inst_base; +} ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SETEND"); } ARM_INST_PTR INTERPRETER_TRANSLATE(shadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADD16"); } ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADD8"); } @@ -5764,7 +5781,47 @@ unsigned InterpreterMainLoop(ARMul_State* state) FETCH_INST; GOTO_NEXT_INST; } + SEL_INST: + { + INC_ICOUNTER; + if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { + generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component; + + const u32 to = RM; + const u32 from = RN; + const u32 cpsr = cpu->Cpsr; + + u32 result; + if (cpsr & (1 << 16)) + result = from & 0xff; + else + result = to & 0xff; + + if (cpsr & (1 << 17)) + result |= from & 0x0000ff00; + else + result |= to & 0x0000ff00; + + if (cpsr & (1 << 18)) + result |= from & 0x00ff0000; + else + result |= to & 0x00ff0000; + + if (cpsr & (1 << 19)) + result |= from & 0xff000000; + else + result |= to & 0xff000000; + + RD = result; + } + + cpu->Reg[15] += GET_INST_SIZE(cpu); + INC_PC(sizeof(generic_arm_inst)); + FETCH_INST; + GOTO_NEXT_INST; + } + SETEND_INST: SHADD16_INST: SHADD8_INST: |