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Diffstat (limited to 'src/devices/cpu/upd177x/upd177xd.h')
-rw-r--r--src/devices/cpu/upd177x/upd177xd.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/src/devices/cpu/upd177x/upd177xd.h b/src/devices/cpu/upd177x/upd177xd.h
new file mode 100644
index 00000000000..7cefe63aec0
--- /dev/null
+++ b/src/devices/cpu/upd177x/upd177xd.h
@@ -0,0 +1,41 @@
+// license:BSD-3-Clause
+// copyright-holders:Olivier Galibert
+
+// upd177X disassembler
+
+#ifndef MAME_CPU_UPD177X_UPD177XD_H
+#define MAME_CPU_UPD177X_UPD177XD_H
+
+#pragma once
+
+class upd177x_disassembler : public util::disasm_interface
+{
+public:
+ upd177x_disassembler() = default;
+ virtual ~upd177x_disassembler() = default;
+
+ virtual u32 opcode_alignment() const override;
+ virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
+
+private:
+ struct instruction {
+ u16 value;
+ u16 mask;
+ u32 (*cb)(std::ostream &, u16, u16);
+ };
+
+ static const instruction instructions[];
+
+ static std::string reg4(u16 opcode);
+ static std::string reg9(u16 opcode);
+ static std::string imm8(u16 opcode);
+ static std::string imm7(u16 opcode);
+ static std::string imm6(u16 opcode);
+ static std::string imm4(u16 opcode);
+ static std::string imm3_5(u16 opcode);
+ static std::string abs12(u16 opcode, u16 pc);
+ static std::string abs8(u16 opcode, u16 pc);
+ static std::string abs4_4(u16 opcode, u16 pc);
+};
+
+#endif // MAME_CPU_upd177X_upd177XD_H