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A64/config: Provide default implementation of MemoryWriteExclusive functions

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Returning false is always safe, because this means the exclusive write has failed.
This commit is contained in:
MerryMage 2020-06-16 11:52:51 +01:00
parent 34ef5142e3
commit 62e04845b1
1 changed files with 6 additions and 6 deletions
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12
include/dynarmic/A64/config.h
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@ -84,17 +84,17 @@ struct UserCallbacks {
virtual void MemoryWrite128(VAddr vaddr, Vector value) = 0;
// Writes through these callbacks may not be aligned.
virtual bool MemoryWriteExclusive8(VAddr vaddr, std::uint8_t value, std::uint8_t expected) = 0;
virtual bool MemoryWriteExclusive16(VAddr vaddr, std::uint16_t value, std::uint16_t expected) = 0;
virtual bool MemoryWriteExclusive32(VAddr vaddr, std::uint32_t value, std::uint32_t expected) = 0;
virtual bool MemoryWriteExclusive64(VAddr vaddr, std::uint64_t value, std::uint64_t expected) = 0;
virtual bool MemoryWriteExclusive128(VAddr vaddr, Vector value, Vector expected) = 0;
virtual bool MemoryWriteExclusive8(VAddr /*vaddr*/, std::uint8_t /*value*/, std::uint8_t /*expected*/) { return false; }
virtual bool MemoryWriteExclusive16(VAddr /*vaddr*/, std::uint16_t /*value*/, std::uint16_t /*expected*/) { return false; }
virtual bool MemoryWriteExclusive32(VAddr /*vaddr*/, std::uint32_t /*value*/, std::uint32_t /*expected*/) { return false; }
virtual bool MemoryWriteExclusive64(VAddr /*vaddr*/, std::uint64_t /*value*/, std::uint64_t /*expected*/) { return false; }
virtual bool MemoryWriteExclusive128(VAddr /*vaddr*/, Vector /*value*/, Vector /*expected*/) { return false; }
// If this callback returns true, the JIT will assume MemoryRead* callbacks will always
// return the same value at any point in time for this vaddr. The JIT may use this information
// in optimizations.
// A conservative implementation that always returns false is safe.
virtual bool IsReadOnlyMemory(VAddr /* vaddr */) { return false; }
virtual bool IsReadOnlyMemory(VAddr /*vaddr*/) { return false; }
/// The interpreter must execute exactly num_instructions starting from PC.
virtual void InterpreterFallback(VAddr pc, size_t num_instructions) = 0;