diff options
Diffstat (limited to 'src/core/arm')
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index d953adba9..4dd541656 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -1075,6 +1075,10 @@ typedef struct _swp_inst { unsigned int Rm; } swp_inst; +typedef struct setend_inst { + unsigned int set_bigend; +} setend_inst; + typedef struct _b_2_thumb { unsigned int imm; }b_2_thumb; @@ -2283,7 +2287,20 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index) return inst_base; } -static ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SETEND"); } +static ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index) +{ + arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(setend_inst)); + setend_inst* const inst_cream = (setend_inst*)inst_base->component; + + inst_base->cond = AL; + inst_base->idx = index; + inst_base->br = NON_BRANCH; + inst_base->load_r15 = 0; + + inst_cream->set_bigend = BIT(inst, 9); + + return inst_base; +} static ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index) { @@ -5521,6 +5538,23 @@ unsigned InterpreterMainLoop(ARMul_State* state) { } SETEND_INST: + { + // SETEND is unconditional + setend_inst* const inst_cream = (setend_inst*)inst_base->component; + const bool big_endian = (inst_cream->set_bigend == 1); + + if (big_endian) + cpu->Cpsr |= (1 << 9); + else + cpu->Cpsr &= ~(1 << 9); + + LOG_WARNING(Core_ARM11, "SETEND %s executed", big_endian ? "BE" : "LE"); + + cpu->Reg[15] += GET_INST_SIZE(cpu); + INC_PC(sizeof(setend_inst)); + FETCH_INST; + GOTO_NEXT_INST; + } SHADD8_INST: SHADD16_INST: |