diff options
Diffstat (limited to 'src/core/arm/dyncom')
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom.cpp | 32 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom.h | 2 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_dec.cpp | 27 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_dec.h | 16 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 505 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.h | 2 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_run.cpp | 93 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_run.h | 23 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_thumb.cpp | 49 | ||||
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_thumb.h | 30 |
10 files changed, 316 insertions, 463 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom.cpp b/src/core/arm/dyncom/arm_dyncom.cpp index 529c4ac7..c665f706 100644 --- a/src/core/arm/dyncom/arm_dyncom.cpp +++ b/src/core/arm/dyncom/arm_dyncom.cpp @@ -6,7 +6,8 @@ #include "common/make_unique.h" -#include "core/arm/skyeye_common/armdefs.h" +#include "core/arm/skyeye_common/armstate.h" +#include "core/arm/skyeye_common/armsupp.h" #include "core/arm/skyeye_common/vfp/vfp.h" #include "core/arm/dyncom/arm_dyncom.h" @@ -17,26 +18,7 @@ #include "core/core_timing.h" ARM_DynCom::ARM_DynCom(PrivilegeMode initial_mode) { - state = Common::make_unique<ARMul_State>(); - - ARMul_NewState(state.get()); - ARMul_SelectProcessor(state.get(), ARM_v6_Prop | ARM_v5_Prop | ARM_v5e_Prop); - - state->abort_model = ABORT_BASE_RESTORED; - - state->bigendSig = LOW; - state->lateabtSig = LOW; - state->NirqSig = HIGH; - - // Reset the core to initial state - ARMul_Reset(state.get()); - state->Emulate = RUN; - - // Switch to the desired privilege mode. - switch_mode(state.get(), initial_mode); - - state->Reg[13] = 0x10000000; // Set stack pointer to the top of the stack - state->Reg[15] = 0x00000000; + state = Common::make_unique<ARMul_State>(initial_mode); } ARM_DynCom::~ARM_DynCom() { @@ -100,8 +82,8 @@ void ARM_DynCom::ResetContext(Core::ThreadContext& context, u32 stack_top, u32 e } void ARM_DynCom::SaveContext(Core::ThreadContext& ctx) { - memcpy(ctx.cpu_registers, state->Reg, sizeof(ctx.cpu_registers)); - memcpy(ctx.fpu_registers, state->ExtReg, sizeof(ctx.fpu_registers)); + memcpy(ctx.cpu_registers, state->Reg.data(), sizeof(ctx.cpu_registers)); + memcpy(ctx.fpu_registers, state->ExtReg.data(), sizeof(ctx.fpu_registers)); ctx.sp = state->Reg[13]; ctx.lr = state->Reg[14]; @@ -113,8 +95,8 @@ void ARM_DynCom::SaveContext(Core::ThreadContext& ctx) { } void ARM_DynCom::LoadContext(const Core::ThreadContext& ctx) { - memcpy(state->Reg, ctx.cpu_registers, sizeof(ctx.cpu_registers)); - memcpy(state->ExtReg, ctx.fpu_registers, sizeof(ctx.fpu_registers)); + memcpy(state->Reg.data(), ctx.cpu_registers, sizeof(ctx.cpu_registers)); + memcpy(state->ExtReg.data(), ctx.fpu_registers, sizeof(ctx.fpu_registers)); state->Reg[13] = ctx.sp; state->Reg[14] = ctx.lr; diff --git a/src/core/arm/dyncom/arm_dyncom.h b/src/core/arm/dyncom/arm_dyncom.h index cc935572..87ab6908 100644 --- a/src/core/arm/dyncom/arm_dyncom.h +++ b/src/core/arm/dyncom/arm_dyncom.h @@ -9,8 +9,8 @@ #include "common/common_types.h" #include "core/arm/arm_interface.h" -#include "core/arm/skyeye_common/armdefs.h" #include "core/arm/skyeye_common/arm_regformat.h" +#include "core/arm/skyeye_common/armstate.h" namespace Core { struct ThreadContext; diff --git a/src/core/arm/dyncom/arm_dyncom_dec.cpp b/src/core/arm/dyncom/arm_dyncom_dec.cpp index 697be955..ee428831 100644 --- a/src/core/arm/dyncom/arm_dyncom_dec.cpp +++ b/src/core/arm/dyncom/arm_dyncom_dec.cpp @@ -2,10 +2,10 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include "core/arm/skyeye_common/armdefs.h" #include "core/arm/dyncom/arm_dyncom_dec.h" +#include "core/arm/skyeye_common/armsupp.h" -const ISEITEM arm_instruction[] = { +const InstructionSetEncodingItem arm_instruction[] = { { "vmla", 4, ARMVFP2, { 23, 27, 0x1C, 20, 21, 0x0, 9, 11, 0x5, 4, 4, 0 }}, { "vmls", 7, ARMVFP2, { 28, 31, 0xF, 25, 27, 0x1, 23, 23, 1, 11, 11, 0, 8, 9, 0x2, 6, 6, 1, 4, 4, 0 }}, { "vnmla", 4, ARMVFP2, { 23, 27, 0x1C, 20, 21, 0x1, 9, 11, 0x5, 4, 4, 0 }}, @@ -207,7 +207,7 @@ const ISEITEM arm_instruction[] = { { "bbl", 1, 0, { 25, 27, 0x00000005 }}, }; -const ISEITEM arm_exclusion_code[] = { +const InstructionSetEncodingItem arm_exclusion_code[] = { { "vmla", 0, ARMVFP2, { 0 }}, { "vmls", 0, ARMVFP2, { 0 }}, { "vnmla", 0, ARMVFP2, { 0 }}, @@ -414,14 +414,13 @@ const ISEITEM arm_exclusion_code[] = { { "invalid", 0, INVALID, { 0 }} }; -int decode_arm_instr(uint32_t instr, int32_t *idx) { +ARMDecodeStatus DecodeARMInstruction(u32 instr, s32* idx) { int n = 0; int base = 0; - int ret = DECODE_FAILURE; - int i = 0; - int instr_slots = sizeof(arm_instruction) / sizeof(ISEITEM); + int instr_slots = sizeof(arm_instruction) / sizeof(InstructionSetEncodingItem); + ARMDecodeStatus ret = ARMDecodeStatus::FAILURE; - for (i = 0; i < instr_slots; i++) { + for (int i = 0; i < instr_slots; i++) { n = arm_instruction[i].attribute_value; base = 0; @@ -438,11 +437,11 @@ int decode_arm_instr(uint32_t instr, int32_t *idx) { n--; } - // All conditions is satisfied. + // All conditions are satisfied. if (n == 0) - ret = DECODE_SUCCESS; + ret = ARMDecodeStatus::SUCCESS; - if (ret == DECODE_SUCCESS) { + if (ret == ARMDecodeStatus::SUCCESS) { n = arm_exclusion_code[i].attribute_value; if (n != 0) { base = 0; @@ -454,13 +453,13 @@ int decode_arm_instr(uint32_t instr, int32_t *idx) { n--; } - // All conditions is satisfied. + // All conditions are satisfied. if (n == 0) - ret = DECODE_FAILURE; + ret = ARMDecodeStatus::FAILURE; } } - if (ret == DECODE_SUCCESS) { + if (ret == ARMDecodeStatus::SUCCESS) { *idx = i; return ret; } diff --git a/src/core/arm/dyncom/arm_dyncom_dec.h b/src/core/arm/dyncom/arm_dyncom_dec.h index 4b5f5ad7..d7170e0f 100644 --- a/src/core/arm/dyncom/arm_dyncom_dec.h +++ b/src/core/arm/dyncom/arm_dyncom_dec.h @@ -4,22 +4,22 @@ #pragma once -int decode_arm_instr(uint32_t instr, int32_t *idx); +#include "common/common_types.h" -enum DECODE_STATUS { - DECODE_SUCCESS, - DECODE_FAILURE +enum class ARMDecodeStatus { + SUCCESS, + FAILURE }; -struct instruction_set_encoding_item { +ARMDecodeStatus DecodeARMInstruction(u32 instr, s32* idx); + +struct InstructionSetEncodingItem { const char *name; int attribute_value; int version; u32 content[21]; }; -typedef struct instruction_set_encoding_item ISEITEM; - // ARM versions enum { INVALID = 0, @@ -36,4 +36,4 @@ enum { ARMV6K, }; -extern const ISEITEM arm_instruction[]; +extern const InstructionSetEncodingItem arm_instruction[]; diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index 785f3956..bb0cbb4d 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -17,8 +17,8 @@ #include "core/arm/dyncom/arm_dyncom_interpreter.h" #include "core/arm/dyncom/arm_dyncom_thumb.h" #include "core/arm/dyncom/arm_dyncom_run.h" -#include "core/arm/skyeye_common/armdefs.h" -#include "core/arm/skyeye_common/armmmu.h" +#include "core/arm/skyeye_common/armstate.h" +#include "core/arm/skyeye_common/armsupp.h" #include "core/arm/skyeye_common/vfp/vfp.h" Common::Profiling::TimingCategory profile_execute("DynCom::Execute"); @@ -47,28 +47,6 @@ enum { typedef unsigned int (*shtop_fp_t)(ARMul_State* cpu, unsigned int sht_oper); -// Defines a reservation granule of 2 words, which protects the first 2 words starting at the tag. -// This is the smallest granule allowed by the v7 spec, and is coincidentally just large enough to -// support LDR/STREXD. -static const ARMword RESERVATION_GRANULE_MASK = 0xFFFFFFF8; - -// Exclusive memory access -static int exclusive_detect(ARMul_State* state, ARMword addr) { - if(state->exclusive_tag == (addr & RESERVATION_GRANULE_MASK)) - return 0; - else - return -1; -} - -static void add_exclusive_addr(ARMul_State* state, ARMword addr){ - state->exclusive_tag = addr & RESERVATION_GRANULE_MASK; - return; -} - -static void remove_exclusive(ARMul_State* state, ARMword addr){ - state->exclusive_tag = 0xFFFFFFFF; -} - static int CondPassed(ARMul_State* cpu, unsigned int cond) { const u32 NFLAG = cpu->NFlag; const u32 ZFLAG = cpu->ZFlag; @@ -3490,21 +3468,15 @@ enum { FETCH_FAILURE }; -static tdstate decode_thumb_instr(u32 inst, u32 addr, u32* arm_inst, u32* inst_size, ARM_INST_PTR* ptr_inst_base) { +static ThumbDecodeStatus DecodeThumbInstruction(u32 inst, u32 addr, u32* arm_inst, u32* inst_size, ARM_INST_PTR* ptr_inst_base) { // Check if in Thumb mode - tdstate ret = thumb_translate (addr, inst, arm_inst, inst_size); - if(ret == t_branch){ - // TODO: FIXME, endian should be judged - u32 tinstr; - if((addr & 0x3) != 0) - tinstr = inst >> 16; - else - tinstr = inst & 0xFFFF; - + ThumbDecodeStatus ret = TranslateThumbInstruction (addr, inst, arm_inst, inst_size); + if (ret == ThumbDecodeStatus::BRANCH) { int inst_index; int table_length = sizeof(arm_instruction_trans) / sizeof(transop_fp_t); + u32 tinstr = GetThumbInstruction(inst, addr); - switch((tinstr & 0xF800) >> 11){ + switch ((tinstr & 0xF800) >> 11) { case 26: case 27: if (((tinstr & 0x0F00) != 0x0E00) && ((tinstr & 0x0F00) != 0x0F00)){ @@ -3537,7 +3509,7 @@ static tdstate decode_thumb_instr(u32 inst, u32 addr, u32* arm_inst, u32* inst_s *ptr_inst_base = arm_instruction_trans[inst_index](tinstr, inst_index); break; default: - ret = t_undefined; + ret = ThumbDecodeStatus::UNDEFINED; break; } } @@ -3549,10 +3521,6 @@ enum { FETCH_EXCEPTION }; -typedef struct instruction_set_encoding_item ISEITEM; - -extern const ISEITEM arm_instruction[]; - static int InterpreterTranslate(ARMul_State* cpu, int& bb_start, u32 addr) { Common::Profiling::ScopeTimer timer_decode(profile_decode); @@ -3574,20 +3542,19 @@ static int InterpreterTranslate(ARMul_State* cpu, int& bb_start, u32 addr) { inst = Memory::Read32(phys_addr & 0xFFFFFFFC); size++; - // If we are in thumb instruction, we will translate one thumb to one corresponding arm instruction + // If we are in Thumb mode, we'll translate one Thumb instruction to the corresponding ARM instruction if (cpu->TFlag) { uint32_t arm_inst; - tdstate state = decode_thumb_instr(inst, phys_addr, &arm_inst, &inst_size, &inst_base); + ThumbDecodeStatus state = DecodeThumbInstruction(inst, phys_addr, &arm_inst, &inst_size, &inst_base); - // We have translated the branch instruction of thumb in thumb decoder - if(state == t_branch){ + // We have translated the Thumb branch instruction in the Thumb decoder + if (state == ThumbDecodeStatus::BRANCH) { goto translated; } inst = arm_inst; } - ret = decode_arm_instr(inst, &idx); - if (ret == DECODE_FAILURE) { + if (DecodeARMInstruction(inst, &idx) == ARMDecodeStatus::FAILURE) { std::string disasm = ARM_Disasm::Disassemble(phys_addr, inst); LOG_ERROR(Core_ARM11, "Decode failure.\tPC : [0x%x]\tInstruction : %s [%x]", phys_addr, disasm.c_str(), inst); LOG_ERROR(Core_ARM11, "cpsr=0x%x, cpu->TFlag=%d, r15=0x%x", cpu->Cpsr, cpu->TFlag, cpu->Reg[15]); @@ -3919,7 +3886,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { #endif arm_inst* inst_base; unsigned int addr; - unsigned int phys_addr; unsigned int num_instrs = 0; int ptr; @@ -3938,8 +3904,6 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { else cpu->Reg[15] &= 0xfffffffc; - phys_addr = cpu->Reg[15]; - // Find the cached instruction cream, otherwise translate it... auto itr = cpu->instruction_cache.find(cpu->Reg[15]); if (itr != cpu->instruction_cache.end()) { @@ -3957,14 +3921,18 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { adc_inst* const inst_cream = (adc_inst*)inst_base->component; + u32 rn_val = RN; + if (inst_cream->Rn == 15) + rn_val += 2 * cpu->GetInstructionSize(); + bool carry; bool overflow; - RD = AddWithCarry(RN, SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); + RD = AddWithCarry(rn_val, SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -3978,7 +3946,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(adc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -3990,7 +3958,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rn_val = RN; if (inst_cream->Rn == 15) - rn_val += 2 * GET_INST_SIZE(cpu); + rn_val += 2 * cpu->GetInstructionSize(); bool carry; bool overflow; @@ -3999,7 +3967,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Cpsr & 0x1f); + cpu->ChangePrivilegeMode(cpu->Cpsr & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4013,22 +3981,28 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(add_inst)); FETCH_INST; GOTO_NEXT_INST; } AND_INST: { - and_inst *inst_cream = (and_inst *)inst_base->component; - if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) { + if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { + and_inst* const inst_cream = (and_inst*)inst_base->component; + u32 lop = RN; u32 rop = SHIFTER_OPERAND; + + if (inst_cream->Rn == 15) + lop += 2 * cpu->GetInstructionSize(); + RD = lop & rop; + if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Cpsr & 0x1f); + cpu->ChangePrivilegeMode(cpu->Cpsr & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4041,7 +4015,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(and_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4057,7 +4031,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { INC_PC(sizeof(bbl_inst)); goto DISPATCH; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(bbl_inst)); goto DISPATCH; } @@ -4067,14 +4041,14 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) { u32 lop = RN; if (inst_cream->Rn == 15) { - lop += 2 * GET_INST_SIZE(cpu); + lop += 2 * cpu->GetInstructionSize(); } u32 rop = SHIFTER_OPERAND; RD = lop & (~rop); if ((inst_cream->S) && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4087,7 +4061,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(bic_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4098,7 +4072,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { bkpt_inst* const inst_cream = (bkpt_inst*)inst_base->component; LOG_DEBUG(Core_ARM11, "Breakpoint instruction hit. Immediate: 0x%08X", inst_cream->imm); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(bkpt_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4109,13 +4083,13 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) { unsigned int inst = inst_cream->inst; if (BITS(inst, 20, 27) == 0x12 && BITS(inst, 4, 7) == 0x3) { - cpu->Reg[14] = (cpu->Reg[15] + GET_INST_SIZE(cpu)); + cpu->Reg[14] = (cpu->Reg[15] + cpu->GetInstructionSize()); if(cpu->TFlag) cpu->Reg[14] |= 0x1; cpu->Reg[15] = cpu->Reg[inst_cream->val.Rm] & 0xfffffffe; cpu->TFlag = cpu->Reg[inst_cream->val.Rm] & 0x1; } else { - cpu->Reg[14] = (cpu->Reg[15] + GET_INST_SIZE(cpu)); + cpu->Reg[14] = (cpu->Reg[15] + cpu->GetInstructionSize()); cpu->TFlag = 0x1; int signed_int = inst_cream->val.signed_immed_24; signed_int = (signed_int & 0x800000) ? (0x3F000000 | signed_int) : signed_int; @@ -4125,7 +4099,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { INC_PC(sizeof(blx_inst)); goto DISPATCH; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(blx_inst)); goto DISPATCH; } @@ -4147,7 +4121,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 address = RM; if (inst_cream->Rm == 15) - address += 2 * GET_INST_SIZE(cpu); + address += 2 * cpu->GetInstructionSize(); cpu->TFlag = address & 1; cpu->Reg[15] = address & 0xfffffffe; @@ -4155,7 +4129,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(bx_inst)); goto DISPATCH; } @@ -4167,7 +4141,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->NumInstrsToExecute = 0; return num_instrs; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(cdp_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4175,10 +4149,8 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { CLREX_INST: { - remove_exclusive(cpu, 0); - cpu->exclusive_state = 0; - - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->UnsetExclusiveMemoryAddress(); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(clrex_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4189,7 +4161,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { clz_inst* inst_cream = (clz_inst*)inst_base->component; RD = clz(RM); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(clz_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4199,16 +4171,20 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { cmn_inst* const inst_cream = (cmn_inst*)inst_base->component; + u32 rn_val = RN; + if (inst_cream->Rn == 15) + rn_val += 2 * cpu->GetInstructionSize(); + bool carry; bool overflow; - u32 result = AddWithCarry(RN, SHIFTER_OPERAND, 0, &carry, &overflow); + u32 result = AddWithCarry(rn_val, SHIFTER_OPERAND, 0, &carry, &overflow); UPDATE_NFLAG(result); UPDATE_ZFLAG(result); cpu->CFlag = carry; cpu->VFlag = overflow; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(cmn_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4220,7 +4196,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rn_val = RN; if (inst_cream->Rn == 15) - rn_val += 2 * GET_INST_SIZE(cpu); + rn_val += 2 * cpu->GetInstructionSize(); bool carry; bool overflow; @@ -4231,7 +4207,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->CFlag = carry; cpu->VFlag = overflow; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(cmp_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4241,7 +4217,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cps_inst *inst_cream = (cps_inst *)inst_base->component; uint32_t aif_val = 0; uint32_t aif_mask = 0; - if (InAPrivilegedMode(cpu)) { + if (cpu->InAPrivilegedMode()) { if (inst_cream->imod1) { if (inst_cream->A) { aif_val |= (inst_cream->imod0 << 8); @@ -4260,10 +4236,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } if (inst_cream->mmod) { cpu->Cpsr = (cpu->Cpsr & 0xffffffe0) | inst_cream->mode; - switch_mode(cpu, inst_cream->mode); + cpu->ChangePrivilegeMode(inst_cream->mode); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(cps_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4279,7 +4255,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mov_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4291,14 +4267,14 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 lop = RN; if (inst_cream->Rn == 15) { - lop += 2 * GET_INST_SIZE(cpu); + lop += 2 * cpu->GetInstructionSize(); } u32 rop = SHIFTER_OPERAND; RD = lop ^ rop; if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4311,7 +4287,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(eor_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4320,7 +4296,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { { // Instruction not implemented //LOG_CRITICAL(Core_ARM11, "unimplemented instruction"); - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4335,30 +4311,30 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (BIT(inst, 22) && !BIT(inst, 15)) { for (int i = 0; i < 13; i++) { if(BIT(inst, i)) { - cpu->Reg[i] = ReadMemory32(cpu, addr); + cpu->Reg[i] = cpu->ReadMemory32(addr); addr += 4; } } if (BIT(inst, 13)) { if (cpu->Mode == USER32MODE) - cpu->Reg[13] = ReadMemory32(cpu, addr); + cpu->Reg[13] = cpu->ReadMemory32(addr); else - cpu->Reg_usr[0] = ReadMemory32(cpu, addr); + cpu->Reg_usr[0] = cpu->ReadMemory32(addr); addr += 4; } if (BIT(inst, 14)) { if (cpu->Mode == USER32MODE) - cpu->Reg[14] = ReadMemory32(cpu, addr); + cpu->Reg[14] = cpu->ReadMemory32(addr); else - cpu->Reg_usr[1] = ReadMemory32(cpu, addr); + cpu->Reg_usr[1] = cpu->ReadMemory32(addr); addr += 4; } } else if (!BIT(inst, 22)) { for(int i = 0; i < 16; i++ ){ if(BIT(inst, i)){ - unsigned int ret = ReadMemory32(cpu, addr); + unsigned int ret = cpu->ReadMemory32(addr); // For armv5t, should enter thumb when bits[0] is non-zero. if(i == 15){ @@ -4373,18 +4349,18 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } else if (BIT(inst, 22) && BIT(inst, 15)) { for(int i = 0; i < 15; i++ ){ if(BIT(inst, i)){ - cpu->Reg[i] = ReadMemory32(cpu, addr); + cpu->Reg[i] = cpu->ReadMemory32(addr); addr += 4; } } if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Cpsr & 0x1f); + cpu->ChangePrivilegeMode(cpu->Cpsr & 0x1F); LOAD_NZCVT; } - cpu->Reg[15] = ReadMemory32(cpu, addr); + cpu->Reg[15] = cpu->ReadMemory32(addr); } if (BIT(inst, 15)) { @@ -4392,7 +4368,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4410,7 +4386,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } RD = operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sxth_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4420,7 +4396,7 @@ 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 = ReadMemory32(cpu, addr); + unsigned int value = cpu->ReadMemory32(addr); cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value; if (BITS(inst_cream->inst, 12, 15) == 15) { @@ -4431,7 +4407,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4442,7 +4418,7 @@ 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 = ReadMemory32(cpu, addr); + unsigned int value = cpu->ReadMemory32(addr); cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value; if (BITS(inst_cream->inst, 12, 15) == 15) { @@ -4453,7 +4429,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4464,7 +4440,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { uxth_inst* inst_cream = (uxth_inst*)inst_base->component; RD = ROTATE_RIGHT_32(RM, 8 * inst_cream->rotate) & 0xffff; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxth_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4477,7 +4453,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = RN + operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxtah_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4495,7 +4471,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4513,7 +4489,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4527,8 +4503,8 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { // The 3DS doesn't have LPAE (Large Physical Access Extension), so it // wouldn't do this as a single read. - cpu->Reg[BITS(inst_cream->inst, 12, 15) + 0] = ReadMemory32(cpu, addr); - cpu->Reg[BITS(inst_cream->inst, 12, 15) + 1] = ReadMemory32(cpu, addr + 4); + cpu->Reg[BITS(inst_cream->inst, 12, 15) + 0] = cpu->ReadMemory32(addr); + cpu->Reg[BITS(inst_cream->inst, 12, 15) + 1] = cpu->ReadMemory32(addr + 4); // No dispatch since this operation should not modify R15 } @@ -4544,16 +4520,15 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int read_addr = RN; - add_exclusive_addr(cpu, read_addr); - cpu->exclusive_state = 1; + cpu->SetExclusiveMemoryAddress(read_addr); - RD = ReadMemory32(cpu, read_addr); + RD = cpu->ReadMemory32(read_addr); if (inst_cream->Rd == 15) { INC_PC(sizeof(generic_arm_inst)); goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4564,8 +4539,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int read_addr = RN; - add_exclusive_addr(cpu, read_addr); - cpu->exclusive_state = 1; + cpu->SetExclusiveMemoryAddress(read_addr); RD = Memory::Read8(read_addr); if (inst_cream->Rd == 15) { @@ -4573,7 +4547,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4584,16 +4558,15 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int read_addr = RN; - add_exclusive_addr(cpu, read_addr); - cpu->exclusive_state = 1; + cpu->SetExclusiveMemoryAddress(read_addr); - RD = ReadMemory16(cpu, read_addr); + RD = cpu->ReadMemory16(read_addr); if (inst_cream->Rd == 15) { INC_PC(sizeof(generic_arm_inst)); goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4604,18 +4577,17 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int read_addr = RN; - add_exclusive_addr(cpu, read_addr); - cpu->exclusive_state = 1; + cpu->SetExclusiveMemoryAddress(read_addr); - RD = ReadMemory32(cpu, read_addr); - RD2 = ReadMemory32(cpu, read_addr + 4); + 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] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4626,13 +4598,13 @@ 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)] = ReadMemory16(cpu, 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] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4652,7 +4624,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4663,7 +4635,7 @@ 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 = ReadMemory16(cpu, addr); + unsigned int value = cpu->ReadMemory16(addr); if (BIT(value, 15)) { value |= 0xffff0000; } @@ -4673,7 +4645,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4684,7 +4656,7 @@ 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 = ReadMemory32(cpu, addr); + unsigned int value = cpu->ReadMemory32(addr); cpu->Reg[BITS(inst_cream->inst, 12, 15)] = value; if (BITS(inst_cream->inst, 12, 15) == 15) { @@ -4692,7 +4664,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4707,10 +4679,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { DEBUG_MSG; } else { if (inst_cream->cp_num == 15) - WriteCP15Register(cpu, RD, CRn, OPCODE_1, CRm, OPCODE_2); + cpu->WriteCP15Register(RD, CRn, OPCODE_1, CRm, OPCODE_2); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mcr_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4727,7 +4699,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { inst_cream->cp_num, inst_cream->crm, inst_cream->opcode_1, inst_cream->rt, inst_cream->rt2); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mcrr_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4752,7 +4724,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mla_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4766,7 +4738,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4779,7 +4751,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mov_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4800,10 +4772,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto END; } else { if (inst_cream->cp_num == 15) - RD = ReadCP15Register(cpu, CRn, OPCODE_1, CRm, OPCODE_2); + RD = cpu->ReadCP15Register(CRn, OPCODE_1, CRm, OPCODE_2); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mrc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4820,7 +4792,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { inst_cream->cp_num, inst_cream->crm, inst_cream->opcode_1, inst_cream->rt, inst_cream->rt2); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mcrr_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4838,7 +4810,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = cpu->Cpsr; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mrs_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4861,7 +4833,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { | (BIT(inst, 18) ? 0xff0000 : 0) | (BIT(inst, 19) ? 0xff000000 : 0); uint32_t mask = 0; if (!inst_cream->R) { - if (InAPrivilegedMode(cpu)) { + if (cpu->InAPrivilegedMode()) { if ((operand & StateMask) != 0) { /// UNPREDICTABLE DEBUG_MSG; @@ -4873,7 +4845,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { SAVE_NZCVT; cpu->Cpsr = (cpu->Cpsr & ~mask) | (operand & mask); - switch_mode(cpu, cpu->Cpsr & 0x1f); + cpu->ChangePrivilegeMode(cpu->Cpsr & 0x1F); LOAD_NZCVT; } else { if (CurrentModeHasSPSR) { @@ -4882,7 +4854,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(msr_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4904,7 +4876,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mul_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4919,7 +4891,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4932,7 +4904,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(mvn_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4944,12 +4916,16 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 lop = RN; u32 rop = SHIFTER_OPERAND; + + if (inst_cream->Rn == 15) + lop += 2 * cpu->GetInstructionSize(); + RD = lop | rop; if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -4962,7 +4938,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(orr_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4970,7 +4946,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { NOP_INST: { - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC_STUB; FETCH_INST; GOTO_NEXT_INST; @@ -4982,7 +4958,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { pkh_inst *inst_cream = (pkh_inst *)inst_base->component; RD = (RN & 0xFFFF) | ((RM << inst_cream->imm) & 0xFFFF0000); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(pkh_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -4995,7 +4971,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { int shift_imm = inst_cream->imm ? inst_cream->imm : 31; RD = ((static_cast<s32>(RM) >> shift_imm) & 0xFFFF) | (RN & 0xFFFF0000); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(pkh_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5005,7 +4981,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { { // Not implemented. PLD is a hint instruction, so it's optional. - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(pld_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5078,7 +5054,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = result; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5140,7 +5116,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5173,7 +5149,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(rev_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5187,8 +5163,8 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 address = 0; inst_cream->get_addr(cpu, inst_cream->inst, address); - cpu->Cpsr = ReadMemory32(cpu, address); - cpu->Reg[15] = ReadMemory32(cpu, address + 4); + cpu->Cpsr = cpu->ReadMemory32(address); + cpu->Reg[15] = cpu->ReadMemory32(address + 4); INC_PC(sizeof(ldst_inst)); goto DISPATCH; @@ -5201,7 +5177,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rn_val = RN; if (inst_cream->Rn == 15) - rn_val += 2 * GET_INST_SIZE(cpu); + rn_val += 2 * cpu->GetInstructionSize(); bool carry; bool overflow; @@ -5210,7 +5186,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -5224,7 +5200,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(rsb_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5234,14 +5210,18 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { rsc_inst* const inst_cream = (rsc_inst*)inst_base->component; + u32 rn_val = RN; + if (inst_cream->Rn == 15) + rn_val += 2 * cpu->GetInstructionSize(); + bool carry; bool overflow; - RD = AddWithCarry(~RN, SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); + RD = AddWithCarry(~rn_val, SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -5255,7 +5235,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(rsc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5363,7 +5343,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5374,14 +5354,18 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { sbc_inst* const inst_cream = (sbc_inst*)inst_base->component; + u32 rn_val = RN; + if (inst_cream->Rn == 15) + rn_val += 2 * cpu->GetInstructionSize(); + bool carry; bool overflow; - RD = AddWithCarry(RN, ~SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); + RD = AddWithCarry(rn_val, ~SHIFTER_OPERAND, cpu->CFlag, &carry, &overflow); if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -5395,7 +5379,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sbc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5434,7 +5418,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = result; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5453,7 +5437,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { LOG_WARNING(Core_ARM11, "SETEND %s executed", big_endian ? "BE" : "LE"); - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(setend_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5466,7 +5450,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { LOG_TRACE(Core_ARM11, "SEV executed."); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC_STUB; FETCH_INST; GOTO_NEXT_INST; @@ -5538,7 +5522,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5563,7 +5547,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (AddOverflow(operand1 * operand2, RN, RD)) cpu->Cpsr |= (1 << 27); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smla_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5619,7 +5603,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlad_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5648,7 +5632,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->ZFlag = (RDHI == 0 && RDLO == 0); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(umlal_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5678,7 +5662,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RDHI = ((dest >> 32) & 0xFFFFFFFF); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlalxy_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5703,7 +5687,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->Cpsr |= (1 << 27); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlad_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5741,7 +5725,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RDHI = ((result >> 32) & 0xFFFFFFFF); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlald_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5777,7 +5761,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = ((result >> 32) & 0xFFFFFFFF); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlad_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5799,7 +5783,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { operand2 = (BIT(RS, 31)) ? (BITS(RS, 16, 31) | 0xffff0000) : BITS(RS, 16, 31); RD = operand1 * operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smul_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5825,7 +5809,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->ZFlag = (RDHI == 0 && RDLO == 0); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(umull_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5841,7 +5825,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { s64 result = (s64)rm * (s64)(s32)RN; RD = BITS(result, 16, 47); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(smlad_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5855,10 +5839,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 address = 0; inst_cream->get_addr(cpu, inst_cream->inst, address); - WriteMemory32(cpu, address + 0, cpu->Reg[14]); - WriteMemory32(cpu, address + 4, cpu->Spsr_copy); + cpu->WriteMemory32(address + 0, cpu->Reg[14]); + cpu->WriteMemory32(address + 4, cpu->Spsr_copy); - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5891,7 +5875,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = rn_val; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ssat_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5913,7 +5897,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->Cpsr |= (1 << 27); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ssat_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5923,7 +5907,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { { // Instruction not implemented //LOG_CRITICAL(Core_ARM11, "unimplemented instruction"); - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(stc_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5941,36 +5925,36 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (BIT(inst_cream->inst, 22) == 1) { for (int i = 0; i < 13; i++) { if (BIT(inst_cream->inst, i)) { - WriteMemory32(cpu, addr, cpu->Reg[i]); + cpu->WriteMemory32(addr, cpu->Reg[i]); addr += 4; } } if (BIT(inst_cream->inst, 13)) { if (cpu->Mode == USER32MODE) - WriteMemory32(cpu, addr, cpu->Reg[13]); + cpu->WriteMemory32(addr, cpu->Reg[13]); else - WriteMemory32(cpu, addr, cpu->Reg_usr[0]); + cpu->WriteMemory32(addr, cpu->Reg_usr[0]); addr += 4; } if (BIT(inst_cream->inst, 14)) { if (cpu->Mode == USER32MODE) - WriteMemory32(cpu, addr, cpu->Reg[14]); + cpu->WriteMemory32(addr, cpu->Reg[14]); else - WriteMemory32(cpu, addr, cpu->Reg_usr[1]); + cpu->WriteMemory32(addr, cpu->Reg_usr[1]); addr += 4; } if (BIT(inst_cream->inst, 15)) { - WriteMemory32(cpu, addr, cpu->Reg_usr[1] + 8); + cpu->WriteMemory32(addr, cpu->Reg_usr[1] + 8); } } else { for (int i = 0; i < 15; i++) { if (BIT(inst_cream->inst, i)) { if (i == Rn) - WriteMemory32(cpu, addr, old_RN); + cpu->WriteMemory32(addr, old_RN); else - WriteMemory32(cpu, addr, cpu->Reg[i]); + cpu->WriteMemory32(addr, cpu->Reg[i]); addr += 4; } @@ -5978,10 +5962,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { // Check PC reg if (BIT(inst_cream->inst, 15)) - WriteMemory32(cpu, addr, cpu->Reg_usr[1] + 8); + cpu->WriteMemory32(addr, cpu->Reg_usr[1] + 8); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -5999,7 +5983,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } RD = operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sxtb_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6011,9 +5995,9 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { inst_cream->get_addr(cpu, inst_cream->inst, addr); unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)]; - WriteMemory32(cpu, addr, value); + cpu->WriteMemory32(addr, value); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6024,7 +6008,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { uxtb_inst* inst_cream = (uxtb_inst*)inst_base->component; RD = ROTATE_RIGHT_32(RM, 8 * inst_cream->rotate) & 0xff; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxtb_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6037,7 +6021,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { unsigned int operand2 = ROTATE_RIGHT_32(RM, 8 * inst_cream->rotate) & 0xff; RD = RN + operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxtab_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6050,7 +6034,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)] & 0xff; Memory::Write8(addr, value); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6063,7 +6047,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)] & 0xff; Memory::Write8(addr, value); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6076,10 +6060,10 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { // The 3DS doesn't have the Large Physical Access Extension (LPAE) // so STRD wouldn't store these as a single write. - WriteMemory32(cpu, addr + 0, cpu->Reg[BITS(inst_cream->inst, 12, 15)]); - WriteMemory32(cpu, addr + 4, cpu->Reg[BITS(inst_cream->inst, 12, 15) + 1]); + cpu->WriteMemory32(addr + 0, cpu->Reg[BITS(inst_cream->inst, 12, 15)]); + cpu->WriteMemory32(addr + 4, cpu->Reg[BITS(inst_cream->inst, 12, 15) + 1]); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6090,18 +6074,16 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int write_addr = cpu->Reg[inst_cream->Rn]; - if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) { - remove_exclusive(cpu, write_addr); - cpu->exclusive_state = 0; - - WriteMemory32(cpu, write_addr, RM); + if (cpu->IsExclusiveMemoryAccess(write_addr)) { + cpu->UnsetExclusiveMemoryAddress(); + cpu->WriteMemory32(write_addr, RM); RD = 0; } else { // Failed to write due to mutex access RD = 1; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6112,10 +6094,8 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int write_addr = cpu->Reg[inst_cream->Rn]; - if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) { - remove_exclusive(cpu, write_addr); - cpu->exclusive_state = 0; - + if (cpu->IsExclusiveMemoryAccess(write_addr)) { + cpu->UnsetExclusiveMemoryAddress(); Memory::Write8(write_addr, cpu->Reg[inst_cream->Rm]); RD = 0; } else { @@ -6123,7 +6103,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = 1; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6134,20 +6114,19 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int write_addr = cpu->Reg[inst_cream->Rn]; - if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) { - remove_exclusive(cpu, write_addr); - cpu->exclusive_state = 0; + if (cpu->IsExclusiveMemoryAccess(write_addr)) { + cpu->UnsetExclusiveMemoryAddress(); const u32 rt = cpu->Reg[inst_cream->Rm + 0]; const u32 rt2 = cpu->Reg[inst_cream->Rm + 1]; u64 value; - if (InBigEndianMode(cpu)) + if (cpu->InBigEndianMode()) value = (((u64)rt << 32) | rt2); else value = (((u64)rt2 << 32) | rt); - WriteMemory64(cpu, write_addr, value); + cpu->WriteMemory64(write_addr, value); RD = 0; } else { @@ -6155,7 +6134,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = 1; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6166,18 +6145,16 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component; unsigned int write_addr = cpu->Reg[inst_cream->Rn]; - if ((exclusive_detect(cpu, write_addr) == 0) && (cpu->exclusive_state == 1)) { - remove_exclusive(cpu, write_addr); - cpu->exclusive_state = 0; - - WriteMemory16(cpu, write_addr, RM); + if (cpu->IsExclusiveMemoryAccess(write_addr)) { + cpu->UnsetExclusiveMemoryAddress(); + cpu->WriteMemory16(write_addr, RM); RD = 0; } else { // Failed to write due to mutex access RD = 1; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6189,9 +6166,9 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { inst_cream->get_addr(cpu, inst_cream->inst, addr); unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)] & 0xffff; - WriteMemory16(cpu, addr, value); + cpu->WriteMemory16(addr, value); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6203,9 +6180,9 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { inst_cream->get_addr(cpu, inst_cream->inst, addr); unsigned int value = cpu->Reg[BITS(inst_cream->inst, 12, 15)]; - WriteMemory32(cpu, addr, value); + cpu->WriteMemory32(addr, value); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ldst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6217,7 +6194,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rn_val = RN; if (inst_cream->Rn == 15) - rn_val += 8; + rn_val += 2 * cpu->GetInstructionSize(); bool carry; bool overflow; @@ -6226,7 +6203,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { if (inst_cream->S && (inst_cream->Rd == 15)) { if (CurrentModeHasSPSR) { cpu->Cpsr = cpu->Spsr_copy; - switch_mode(cpu, cpu->Spsr_copy & 0x1f); + cpu->ChangePrivilegeMode(cpu->Spsr_copy & 0x1F); LOAD_NZCVT; } } else if (inst_cream->S) { @@ -6240,7 +6217,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { goto DISPATCH; } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sub_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6252,7 +6229,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { SVC::CallSVC(inst_cream->num & 0xFFFF); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(swi_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6263,12 +6240,12 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { swp_inst* inst_cream = (swp_inst*)inst_base->component; addr = RN; - unsigned int value = ReadMemory32(cpu, addr); - WriteMemory32(cpu, addr, RM); + unsigned int value = cpu->ReadMemory32(addr); + cpu->WriteMemory32(addr, RM); RD = value; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(swp_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6282,7 +6259,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { Memory::Write8(addr, (RM & 0xFF)); RD = value; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(swp_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6298,7 +6275,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { operand2 = (0x80 & operand2)? (0xFFFFFF00 | operand2):operand2; RD = RN + operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxtab_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6331,7 +6308,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sxtab_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6347,7 +6324,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { operand2 = (0x8000 & operand2) ? (0xFFFF0000 | operand2) : operand2; RD = RN + operand2; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(sxtah_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6362,7 +6339,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rop = SHIFTER_OPERAND; if (inst_cream->Rn == 15) - lop += GET_INST_SIZE(cpu) * 2; + lop += cpu->GetInstructionSize() * 2; u32 result = lop ^ rop; @@ -6370,7 +6347,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { UPDATE_ZFLAG(result); UPDATE_CFLAG_WITH_SC; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(teq_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6384,7 +6361,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { u32 rop = SHIFTER_OPERAND; if (inst_cream->Rn == 15) - lop += GET_INST_SIZE(cpu) * 2; + lop += cpu->GetInstructionSize() * 2; u32 result = lop & rop; @@ -6392,7 +6369,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { UPDATE_ZFLAG(result); UPDATE_CFLAG_WITH_SC; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(tst_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6563,7 +6540,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6643,7 +6620,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6662,7 +6639,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RDLO = (result & 0xFFFFFFFF); RDHI = ((result >> 32) & 0xFFFFFFFF); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(umaal_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6685,7 +6662,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->ZFlag = (RDHI == 0 && RDLO == 0); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(umlal_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6705,7 +6682,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->ZFlag = (RDHI == 0 && RDLO == 0); } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(umull_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6733,7 +6710,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { { bl_1_thumb* inst_cream = (bl_1_thumb*)inst_base->component; cpu->Reg[14] = cpu->Reg[15] + 4 + inst_cream->imm; - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(bl_1_thumb)); FETCH_INST; GOTO_NEXT_INST; @@ -6814,7 +6791,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = ((lo_val & 0xFFFF) | hi_val << 16); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6844,7 +6821,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = finalDif; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(generic_arm_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6877,7 +6854,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { RD = rn_val; } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ssat_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6899,7 +6876,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { cpu->Cpsr |= (1 << 27); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(ssat_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6930,7 +6907,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { } } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC(sizeof(uxtab_inst)); FETCH_INST; GOTO_NEXT_INST; @@ -6943,7 +6920,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { LOG_TRACE(Core_ARM11, "WFE executed."); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC_STUB; FETCH_INST; GOTO_NEXT_INST; @@ -6956,7 +6933,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { LOG_TRACE(Core_ARM11, "WFI executed."); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC_STUB; FETCH_INST; GOTO_NEXT_INST; @@ -6969,7 +6946,7 @@ unsigned InterpreterMainLoop(ARMul_State* cpu) { LOG_TRACE(Core_ARM11, "YIELD executed."); } - cpu->Reg[15] += GET_INST_SIZE(cpu); + cpu->Reg[15] += cpu->GetInstructionSize(); INC_PC_STUB; FETCH_INST; GOTO_NEXT_INST; diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.h b/src/core/arm/dyncom/arm_dyncom_interpreter.h index 1c324d29..7a46dcc9 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.h +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.h @@ -4,6 +4,6 @@ #pragma once -#include "core/arm/skyeye_common/armdefs.h" +struct ARMul_State; unsigned InterpreterMainLoop(ARMul_State* state); diff --git a/src/core/arm/dyncom/arm_dyncom_run.cpp b/src/core/arm/dyncom/arm_dyncom_run.cpp deleted file mode 100644 index 5a9a6a78..00000000 --- a/src/core/arm/dyncom/arm_dyncom_run.cpp +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2012 Michael Kang, 2014 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "core/arm/dyncom/arm_dyncom_run.h" -#include "core/arm/skyeye_common/armdefs.h" - -void switch_mode(ARMul_State* core, uint32_t mode) { - if (core->Mode == mode) - return; - - if (mode != USERBANK) { - switch (core->Mode) { - case SYSTEM32MODE: // Shares registers with user mode - case USER32MODE: - core->Reg_usr[0] = core->Reg[13]; - core->Reg_usr[1] = core->Reg[14]; - break; - case IRQ32MODE: - core->Reg_irq[0] = core->Reg[13]; - core->Reg_irq[1] = core->Reg[14]; - core->Spsr[IRQBANK] = core->Spsr_copy; - break; - case SVC32MODE: - core->Reg_svc[0] = core->Reg[13]; - core->Reg_svc[1] = core->Reg[14]; - core->Spsr[SVCBANK] = core->Spsr_copy; - break; - case ABORT32MODE: - core->Reg_abort[0] = core->Reg[13]; - core->Reg_abort[1] = core->Reg[14]; - core->Spsr[ABORTBANK] = core->Spsr_copy; - break; - case UNDEF32MODE: - core->Reg_undef[0] = core->Reg[13]; - core->Reg_undef[1] = core->Reg[14]; - core->Spsr[UNDEFBANK] = core->Spsr_copy; - break; - case FIQ32MODE: - core->Reg_firq[0] = core->Reg[13]; - core->Reg_firq[1] = core->Reg[14]; - core->Spsr[FIQBANK] = core->Spsr_copy; - break; - } - - switch (mode) { - case USER32MODE: - core->Reg[13] = core->Reg_usr[0]; - core->Reg[14] = core->Reg_usr[1]; - core->Bank = USERBANK; - break; - case IRQ32MODE: - core->Reg[13] = core->Reg_irq[0]; - core->Reg[14] = core->Reg_irq[1]; - core->Spsr_copy = core->Spsr[IRQBANK]; - core->Bank = IRQBANK; - break; - case SVC32MODE: - core->Reg[13] = core->Reg_svc[0]; - core->Reg[14] = core->Reg_svc[1]; - core->Spsr_copy = core->Spsr[SVCBANK]; - core->Bank = SVCBANK; - break; - case ABORT32MODE: - core->Reg[13] = core->Reg_abort[0]; - core->Reg[14] = core->Reg_abort[1]; - core->Spsr_copy = core->Spsr[ABORTBANK]; - core->Bank = ABORTBANK; - break; - case UNDEF32MODE: - core->Reg[13] = core->Reg_undef[0]; - core->Reg[14] = core->Reg_undef[1]; - core->Spsr_copy = core->Spsr[UNDEFBANK]; - core->Bank = UNDEFBANK; - break; - case FIQ32MODE: - core->Reg[13] = core->Reg_firq[0]; - core->Reg[14] = core->Reg_firq[1]; - core->Spsr_copy = core->Spsr[FIQBANK]; - core->Bank = FIQBANK; - break; - case SYSTEM32MODE: // Shares registers with user mode. - core->Reg[13] = core->Reg_usr[0]; - core->Reg[14] = core->Reg_usr[1]; - core->Bank = SYSTEMBANK; - break; - } - - // Set the mode bits in the APSR - core->Cpsr = (core->Cpsr & ~core->Mode) | mode; - core->Mode = mode; - } -} diff --git a/src/core/arm/dyncom/arm_dyncom_run.h b/src/core/arm/dyncom/arm_dyncom_run.h index 85774c56..13bef17f 100644 --- a/src/core/arm/dyncom/arm_dyncom_run.h +++ b/src/core/arm/dyncom/arm_dyncom_run.h @@ -18,40 +18,31 @@ #pragma once -#include "core/arm/skyeye_common/armdefs.h" - -void switch_mode(ARMul_State* core, uint32_t mode); - -// Note that for the 3DS, a Thumb instruction will only ever be -// two bytes in size. Thus we don't need to worry about ThumbEE -// or Thumb-2 where instructions can be 4 bytes in length. -static inline u32 GET_INST_SIZE(ARMul_State* core) { - return core->TFlag? 2 : 4; -} +#include "core/arm/skyeye_common/armstate.h" /** * Checks if the PC is being read, and if so, word-aligns it. * Used with address calculations. * - * @param core The ARM CPU state instance. + * @param cpu The ARM CPU state instance. * @param Rn The register being read. * * @return If the PC is being read, then the word-aligned PC value is returned. * If the PC is not being read, then the value stored in the register is returned. */ -static inline u32 CHECK_READ_REG15_WA(ARMul_State* core, int Rn) { - return (Rn == 15) ? ((core->Reg[15] & ~0x3) + GET_INST_SIZE(core) * 2) : core->Reg[Rn]; +static inline u32 CHECK_READ_REG15_WA(ARMul_State* cpu, int Rn) { + return (Rn == 15) ? ((cpu->Reg[15] & ~0x3) + cpu->GetInstructionSize() * 2) : cpu->Reg[Rn]; } /** * Reads the PC. Used for data processing operations that use the PC. * - * @param core The ARM CPU state instance. + * @param cpu The ARM CPU state instance. * @param Rn The register being read. * * @return If the PC is being read, then the incremented PC value is returned. * If the PC is not being read, then the values stored in the register is returned. */ -static inline u32 CHECK_READ_REG15(ARMul_State* core, int Rn) { - return (Rn == 15) ? ((core->Reg[15] & ~0x1) + GET_INST_SIZE(core) * 2) : core->Reg[Rn]; +static inline u32 CHECK_READ_REG15(ARMul_State* cpu, int Rn) { + return (Rn == 15) ? ((cpu->Reg[15] & ~0x1) + cpu->GetInstructionSize() * 2) : cpu->Reg[Rn]; } diff --git a/src/core/arm/dyncom/arm_dyncom_thumb.cpp b/src/core/arm/dyncom/arm_dyncom_thumb.cpp index f10a5b70..29272fd5 100644 --- a/src/core/arm/dyncom/arm_dyncom_thumb.cpp +++ b/src/core/arm/dyncom/arm_dyncom_thumb.cpp @@ -6,20 +6,15 @@ // ARM instruction, and using the existing ARM simulator. #include "core/arm/dyncom/arm_dyncom_thumb.h" +#include "core/arm/skyeye_common/armsupp.h" // Decode a 16bit Thumb instruction. The instruction is in the low 16-bits of the tinstr field, // with the following Thumb instruction held in the high 16-bits. Passing in two Thumb instructions // allows easier simulation of the special dual BL instruction. -tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { - tdstate valid = t_uninitialized; - ARMword tinstr = instr; - - // The endian should be judge here - if((addr & 0x3) != 0) - tinstr = instr >> 16; - else - tinstr &= 0xFFFF; +ThumbDecodeStatus TranslateThumbInstruction(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { + ThumbDecodeStatus valid = ThumbDecodeStatus::UNINITIALIZED; + u32 tinstr = GetThumbInstruction(instr, addr); *ainstr = 0xDEADC0DE; // Debugging to catch non updates @@ -36,7 +31,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { case 3: // ADD/SUB { - static const ARMword subset[4] = { + static const u32 subset[4] = { 0xE0900000, // ADDS Rd,Rs,Rn 0xE0500000, // SUBS Rd,Rs,Rn 0xE2900000, // ADDS Rd,Rs,#imm3 @@ -55,7 +50,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { case 6: // ADD case 7: // SUB { - static const ARMword subset[4] = { + static const u32 subset[4] = { 0xE3B00000, // MOVS Rd,#imm8 0xE3500000, // CMP Rd,#imm8 0xE2900000, // ADDS Rd,Rd,#imm8 @@ -84,7 +79,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { }; static const struct { - ARMword opcode; + u32 opcode; otype type; } subset[16] = { { 0xE0100000, t_norm }, // ANDS Rd,Rd,Rs @@ -129,8 +124,8 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { break; } } else { - ARMword Rd = ((tinstr & 0x0007) >> 0); - ARMword Rs = ((tinstr & 0x0078) >> 3); + u32 Rd = ((tinstr & 0x0007) >> 0); + u32 Rs = ((tinstr & 0x0078) >> 3); if (tinstr & (1 << 7)) Rd += 8; @@ -184,7 +179,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { case 10: case 11: { - static const ARMword subset[8] = { + static const u32 subset[8] = { 0xE7800000, // STR Rd,[Rb,Ro] 0xE18000B0, // STRH Rd,[Rb,Ro] 0xE7C00000, // STRB Rd,[Rb,Ro] @@ -207,7 +202,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { case 14: // STRB Rd,[Rb,#imm5] case 15: // LDRB Rd,[Rb,#imm5] { - static const ARMword subset[4] = { + static const u32 subset[4] = { 0xE5800000, // STR Rd,[Rb,#imm5] 0xE5900000, // LDR Rd,[Rb,#imm5] 0xE5C00000, // STRB Rd,[Rb,#imm5] @@ -274,7 +269,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { | BITS(tinstr, 0, 3) // imm4 field; | (BITS(tinstr, 4, 7) << 8); // beginning 4 bits of imm12 } else if ((tinstr & 0x0F00) == 0x0200) { - static const ARMword subset[4] = { + static const u32 subset[4] = { 0xE6BF0070, // SXTH 0xE6AF0070, // SXTB 0xE6FF0070, // UXTH @@ -298,7 +293,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { | (BIT(tinstr, 4) << 18); // enable bit } } else if ((tinstr & 0x0F00) == 0x0a00) { - static const ARMword subset[3] = { + static const u32 subset[3] = { 0xE6BF0F30, // REV 0xE6BF0FB0, // REV16 0xE6FF0FB0, // REVSH @@ -308,7 +303,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { | (BITS(tinstr, 0, 2) << 12) // Rd | BITS(tinstr, 3, 5); // Rm } else { - static const ARMword subset[4] = { + static const u32 subset[4] = { 0xE92D0000, // STMDB sp!,{rlist} 0xE92D4000, // STMDB sp!,{rlist,lr} 0xE8BD0000, // LDMIA sp!,{rlist} @@ -356,21 +351,21 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { else *ainstr |= (tinstr & 0x00FF); } else if ((tinstr & 0x0F00) != 0x0E00) - valid = t_branch; + valid = ThumbDecodeStatus::BRANCH; else // UNDEFINED : cc=1110(AL) uses different format - valid = t_undefined; + valid = ThumbDecodeStatus::UNDEFINED; break; case 28: // B - valid = t_branch; + valid = ThumbDecodeStatus::BRANCH; break; case 29: - if(tinstr & 0x1) - valid = t_undefined; + if (tinstr & 0x1) + valid = ThumbDecodeStatus::UNDEFINED; else - valid = t_branch; + valid = ThumbDecodeStatus::BRANCH; break; case 30: // BL instruction 1 @@ -379,7 +374,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { // simulation simple (from the user perspective) we check if the following instruction is // the second half of this BL, and if it is we simulate it immediately - valid = t_branch; + valid = ThumbDecodeStatus::BRANCH; break; case 31: // BL instruction 2 @@ -388,7 +383,7 @@ tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size) { // ever be matched with the fmt19 "BL instruction 1" instruction. However, we do allow the // simulation of it on its own, with undefined results if r14 is not suitably initialised. - valid = t_branch; + valid = ThumbDecodeStatus::BRANCH; break; } diff --git a/src/core/arm/dyncom/arm_dyncom_thumb.h b/src/core/arm/dyncom/arm_dyncom_thumb.h index 8394ff15..44797436 100644 --- a/src/core/arm/dyncom/arm_dyncom_thumb.h +++ b/src/core/arm/dyncom/arm_dyncom_thumb.h @@ -26,22 +26,24 @@ #pragma once -#include "core/arm/skyeye_common/armdefs.h" +#include "common/common_types.h" -enum tdstate { - t_undefined, // Undefined Thumb instruction - t_decoded, // Instruction decoded to ARM equivalent - t_branch, // Thumb branch (already processed) - t_uninitialized, +enum class ThumbDecodeStatus { + UNDEFINED, // Undefined Thumb instruction + DECODED, // Instruction decoded to ARM equivalent + BRANCH, // Thumb branch (already processed) + UNINITIALIZED, }; -tdstate thumb_translate(u32 addr, u32 instr, u32* ainstr, u32* inst_size); +// Translates a Thumb mode instruction into its ARM equivalent. +ThumbDecodeStatus TranslateThumbInstruction(u32 addr, u32 instr, u32* ainstr, u32* inst_size); -static inline u32 get_thumb_instr(u32 instr, u32 pc) { - u32 tinstr; - if ((pc & 0x3) != 0) - tinstr = instr >> 16; - else - tinstr = instr & 0xFFFF; - return tinstr; +static inline u32 GetThumbInstruction(u32 instr, u32 address) { + // Normally you would need to handle instruction endianness, + // however, it is fixed to little-endian on the MPCore, so + // there's no need to check for this beforehand. + if ((address & 0x3) != 0) + return instr >> 16; + + return instr & 0xFFFF; } |