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LibX86: Expose some more things on X86::Instruction

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This commit is contained in:
Andreas Kling 2020-07-07 21:12:40 +02:00
parent 7ab2a4dde7
commit 6440e59ead
2 changed files with 15 additions and 2 deletions
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6
Libraries/LibX86/Instruction.cpp
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@ -1906,4 +1906,10 @@ void MemoryOrRegisterReference::decode32(InstructionStream& stream)
} }
} }
InstructionHandler Instruction::handler() const
{
ASSERT(m_descriptor->handler);
return m_descriptor->handler;
}
} }

11
Libraries/LibX86/Instruction.h
View file

@ -198,6 +198,8 @@ public:
String to_string_mm() const; String to_string_mm() const;
bool is_register() const { return m_register_index != 0xffffffff; } bool is_register() const { return m_register_index != 0xffffffff; }
unsigned register_index() const { return m_register_index; }
SegmentRegister segment() const SegmentRegister segment() const
{ {
ASSERT(!is_register()); ASSERT(!is_register());
@ -237,17 +239,22 @@ private:
bool m_has_sib { false }; bool m_has_sib { false };
}; };
class Interpreter;
typedef void (Interpreter::*InstructionHandler)(const Instruction&);
class Instruction { class Instruction {
public: public:
static Instruction from_stream(InstructionStream&, bool o32, bool a32); static Instruction from_stream(InstructionStream&, bool o32, bool a32);
~Instruction() {} ~Instruction() {}
MemoryOrRegisterReference& modrm() MemoryOrRegisterReference& modrm() const
{ {
ASSERT(has_rm()); ASSERT(has_rm());
return m_modrm; return m_modrm;
} }
InstructionHandler handler() const;
bool has_segment_prefix() const { return m_segment_prefix != SegmentRegister::None; } bool has_segment_prefix() const { return m_segment_prefix != SegmentRegister::None; }
bool has_address_size_override_prefix() const { return m_has_address_size_override_prefix; } bool has_address_size_override_prefix() const { return m_has_address_size_override_prefix; }
bool has_operand_size_override_prefix() const { return m_has_operand_size_override_prefix; } bool has_operand_size_override_prefix() const { return m_has_operand_size_override_prefix; }
@ -350,7 +357,7 @@ private:
bool m_has_address_size_override_prefix { false }; bool m_has_address_size_override_prefix { false };
u8 m_rep_prefix { 0 }; u8 m_rep_prefix { 0 };
MemoryOrRegisterReference m_modrm; mutable MemoryOrRegisterReference m_modrm;
InstructionDescriptor* m_descriptor { nullptr }; InstructionDescriptor* m_descriptor { nullptr };
}; };