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-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp126
1 files changed, 29 insertions, 97 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 2cff2a26a..459877eae 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -1623,9 +1623,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrb)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrbt)(unsigned int inst, int index)
@@ -1646,9 +1643,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrbt)(unsigned int inst, int index)
DEBUG_MSG;
}
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrd)(unsigned int inst, int index)
@@ -1703,9 +1697,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrh)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrsb)(unsigned int inst, int index)
@@ -1720,9 +1711,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrsb)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrsh)(unsigned int inst, int index)
@@ -1737,9 +1725,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrsh)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(ldrt)(unsigned int inst, int index)
@@ -2597,9 +2582,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(str)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(uxtb)(unsigned int inst, int index)
@@ -2645,9 +2627,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(strb)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(strbt)(unsigned int inst, int index)
@@ -2669,9 +2648,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(strbt)(unsigned int inst, int index)
DEBUG_MSG;
}
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(strd)(unsigned int inst, int index){
@@ -2685,9 +2661,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(strd)(unsigned int inst, int index){
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(strex)(unsigned int inst, int index)
@@ -2729,9 +2702,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(strh)(unsigned int inst, int index)
inst_cream->inst = inst;
inst_cream->get_addr = get_calc_addr_op(inst);
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(strt)(unsigned int inst, int index)
@@ -2757,9 +2727,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(strt)(unsigned int inst, int index)
DEBUG_MSG;
}
- if (BITS(inst, 12, 15) == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(sub)(unsigned int inst, int index)
@@ -2808,9 +2775,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(swp)(unsigned int inst, int index)
inst_cream->Rd = BITS(inst, 12, 15);
inst_cream->Rm = BITS(inst, 0, 3);
- if (inst_cream->Rd == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(swpb)(unsigned int inst, int index){
@@ -2825,9 +2789,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(swpb)(unsigned int inst, int index){
inst_cream->Rd = BITS(inst, 12, 15);
inst_cream->Rm = BITS(inst, 0, 3);
- if (inst_cream->Rd == 15) {
- inst_base->br = INDIRECT_BRANCH;
- }
return inst_base;
}
static ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab)(unsigned int inst, int index){
@@ -2915,9 +2876,6 @@ static ARM_INST_PTR INTERPRETER_TRANSLATE(tst)(unsigned int inst, int index)
inst_cream->shifter_operand = BITS(inst, 0, 11);
inst_cream->shtop_func = get_shtop(inst);
- if (inst_cream->Rd == 15)
- inst_base->br = INDIRECT_BRANCH;
-
return inst_base;
}
@@ -4477,11 +4435,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
inst_cream->get_addr(cpu, inst_cream->inst, addr);
cpu->Reg[BITS(inst_cream->inst, 12, 15)] = cpu->ReadMemory8(addr);
-
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4494,12 +4447,14 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_cream->get_addr(cpu, inst_cream->inst, addr);
- cpu->Reg[BITS(inst_cream->inst, 12, 15)] = cpu->ReadMemory8(addr);
+ const u32 dest_index = BITS(inst_cream->inst, 12, 15);
+ const u32 previous_mode = cpu->Mode;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
+ cpu->ChangePrivilegeMode(USER32MODE);
+ const u8 value = cpu->ReadMemory8(addr);
+ cpu->ChangePrivilegeMode(previous_mode);
+
+ cpu->Reg[dest_index] = value;
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4535,10 +4490,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
cpu->SetExclusiveMemoryAddress(read_addr);
RD = cpu->ReadMemory32(read_addr);
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(generic_arm_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(generic_arm_inst));
@@ -4554,10 +4505,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
cpu->SetExclusiveMemoryAddress(read_addr);
RD = cpu->ReadMemory8(read_addr);
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(generic_arm_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(generic_arm_inst));
@@ -4573,10 +4520,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
cpu->SetExclusiveMemoryAddress(read_addr);
RD = cpu->ReadMemory16(read_addr);
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(generic_arm_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(generic_arm_inst));
@@ -4593,11 +4536,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
RD = cpu->ReadMemory32(read_addr);
RD2 = cpu->ReadMemory32(read_addr + 4);
-
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(generic_arm_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(generic_arm_inst));
@@ -4611,10 +4549,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
inst_cream->get_addr(cpu, inst_cream->inst, addr);
cpu->Reg[BITS(inst_cream->inst, 12, 15)] = cpu->ReadMemory16(addr);
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4631,10 +4565,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
value |= 0xffffff00;
}
cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4652,10 +4582,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
value |= 0xffff0000;
}
cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4668,13 +4594,14 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_cream->get_addr(cpu, inst_cream->inst, addr);
- unsigned int value = cpu->ReadMemory32(addr);
- cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value;
+ const u32 dest_index = BITS(inst_cream->inst, 12, 15);
+ const u32 previous_mode = cpu->Mode;
- if (BITS(inst_cream->inst, 12, 15) == 15) {
- INC_PC(sizeof(ldst_inst));
- goto DISPATCH;
- }
+ cpu->ChangePrivilegeMode(USER32MODE);
+ const u32 value = cpu->ReadMemory32(addr);
+ cpu->ChangePrivilegeMode(previous_mode);
+
+ cpu->Reg[dest_index] = value;
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -4731,10 +4658,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
UPDATE_NFLAG(RD);
UPDATE_ZFLAG(RD);
}
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(mla_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(mla_inst));
@@ -4883,10 +4806,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
UPDATE_NFLAG(RD);
UPDATE_ZFLAG(RD);
}
- if (inst_cream->Rd == 15) {
- INC_PC(sizeof(mul_inst));
- goto DISPATCH;
- }
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(mul_inst));
@@ -6061,8 +5980,13 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
if (inst_base->cond == ConditionCode::AL || CondPassed(cpu, inst_base->cond)) {
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_cream->get_addr(cpu, inst_cream->inst, addr);
- unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)] & 0xff;
+
+ const u32 previous_mode = cpu->Mode;
+ const u32 value = cpu->Reg[BITS(inst_cream->inst, 12, 15)] & 0xff;
+
+ cpu->ChangePrivilegeMode(USER32MODE);
cpu->WriteMemory8(addr, value);
+ cpu->ChangePrivilegeMode(previous_mode);
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
@@ -6196,8 +6120,16 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) {
ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
inst_cream->get_addr(cpu, inst_cream->inst, addr);
- unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)];
+ const u32 previous_mode = cpu->Mode;
+ const u32 rt_index = BITS(inst_cream->inst, 12, 15);
+
+ u32 value = cpu->Reg[rt_index];
+ if (rt_index == 15)
+ value += 2 * cpu->GetInstructionSize();
+
+ cpu->ChangePrivilegeMode(USER32MODE);
cpu->WriteMemory32(addr, value);
+ cpu->ChangePrivilegeMode(previous_mode);
}
cpu->Reg[15] += cpu->GetInstructionSize();
INC_PC(sizeof(ldst_inst));
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 02:40:15 +0100