diff options
Diffstat (limited to 'src/core/arm/dynarmic/arm_dynarmic_cp15.cpp')
-rw-r--r-- | src/core/arm/dynarmic/arm_dynarmic_cp15.cpp | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/core/arm/dynarmic/arm_dynarmic_cp15.cpp b/src/core/arm/dynarmic/arm_dynarmic_cp15.cpp new file mode 100644 index 000000000..b1fdce096 --- /dev/null +++ b/src/core/arm/dynarmic/arm_dynarmic_cp15.cpp @@ -0,0 +1,88 @@ +// Copyright 2017 Citra Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "core/arm/dynarmic/arm_dynarmic_cp15.h" +#include "core/arm/skyeye_common/arm_regformat.h" +#include "core/arm/skyeye_common/armstate.h" + +using Callback = Dynarmic::Coprocessor::Callback; +using CallbackOrAccessOneWord = Dynarmic::Coprocessor::CallbackOrAccessOneWord; +using CallbackOrAccessTwoWords = Dynarmic::Coprocessor::CallbackOrAccessTwoWords; + +DynarmicCP15::DynarmicCP15(const std::shared_ptr<ARMul_State>& state) : interpreter_state(state) {} + +DynarmicCP15::~DynarmicCP15() = default; + +boost::optional<Callback> DynarmicCP15::CompileInternalOperation(bool two, unsigned opc1, + CoprocReg CRd, CoprocReg CRn, + CoprocReg CRm, unsigned opc2) { + return boost::none; +} + +CallbackOrAccessOneWord DynarmicCP15::CompileSendOneWord(bool two, unsigned opc1, CoprocReg CRn, + CoprocReg CRm, unsigned opc2) { + // TODO(merry): Privileged CP15 registers + + if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C5 && opc2 == 4) { + // This is a dummy write, we ignore the value written here. + return &interpreter_state->CP15[CP15_FLUSH_PREFETCH_BUFFER]; + } + + if (!two && CRn == CoprocReg::C7 && opc1 == 0 && CRm == CoprocReg::C10) { + switch (opc2) { + case 4: + // This is a dummy write, we ignore the value written here. + return &interpreter_state->CP15[CP15_DATA_SYNC_BARRIER]; + case 5: + // This is a dummy write, we ignore the value written here. + return &interpreter_state->CP15[CP15_DATA_MEMORY_BARRIER]; + default: + return boost::blank{}; + } + } + + if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0 && opc2 == 2) { + return &interpreter_state->CP15[CP15_THREAD_UPRW]; + } + + return boost::blank{}; +} + +CallbackOrAccessTwoWords DynarmicCP15::CompileSendTwoWords(bool two, unsigned opc, CoprocReg CRm) { + return boost::blank{}; +} + +CallbackOrAccessOneWord DynarmicCP15::CompileGetOneWord(bool two, unsigned opc1, CoprocReg CRn, + CoprocReg CRm, unsigned opc2) { + // TODO(merry): Privileged CP15 registers + + if (!two && CRn == CoprocReg::C13 && opc1 == 0 && CRm == CoprocReg::C0) { + switch (opc2) { + case 2: + return &interpreter_state->CP15[CP15_THREAD_UPRW]; + case 3: + return &interpreter_state->CP15[CP15_THREAD_URO]; + default: + return boost::blank{}; + } + } + + return boost::blank{}; +} + +CallbackOrAccessTwoWords DynarmicCP15::CompileGetTwoWords(bool two, unsigned opc, CoprocReg CRm) { + return boost::blank{}; +} + +boost::optional<Callback> DynarmicCP15::CompileLoadWords(bool two, bool long_transfer, + CoprocReg CRd, + boost::optional<u8> option) { + return boost::none; +} + +boost::optional<Callback> DynarmicCP15::CompileStoreWords(bool two, bool long_transfer, + CoprocReg CRd, + boost::optional<u8> option) { + return boost::none; +} |