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-rw-r--r--src/core/arm/dyncom/arm_dyncom_interpreter.cpp40
1 files changed, 33 insertions, 7 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
index 2cff2a26a..187aee702 100644
--- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
+++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp
@@ -4494,9 +4494,16 @@ 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) {
+ cpu->ChangePrivilegeMode(USER32MODE);
+ const u8 value = cpu->ReadMemory8(addr);
+ cpu->ChangePrivilegeMode(previous_mode);
+
+ cpu->Reg[dest_index] = value;
+
+ if (dest_index == 15) {
INC_PC(sizeof(ldst_inst));
goto DISPATCH;
}
@@ -4668,10 +4675,16 @@ 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->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) {
+ cpu->ChangePrivilegeMode(USER32MODE);
+ const u32 value = cpu->ReadMemory32(addr);
+ cpu->ChangePrivilegeMode(previous_mode);
+
+ cpu->Reg[dest_index] = value;
+
+ if (dest_index == 15) {
INC_PC(sizeof(ldst_inst));
goto DISPATCH;
}
@@ -6061,8 +6074,13 @@ 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 +6214,16 @@ 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));