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dyncom: Implement SETEND

master
Lioncash 2015-03-11 12:50:39 +07:00
parent b56829df02
commit f280806214
1 changed files with 35 additions and 1 deletions
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36
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
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@ -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: