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-rw-r--r--src/devices/cpu/cr16b/cr16bdasm.h66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/devices/cpu/cr16b/cr16bdasm.h b/src/devices/cpu/cr16b/cr16bdasm.h
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+++ b/src/devices/cpu/cr16b/cr16bdasm.h
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+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_CPU_CR16B_CR16BDASM_H
+#define MAME_CPU_CR16B_CR16BDASM_H 1
+
+#pragma once
+
+class cr16b_disassembler : public util::disasm_interface
+{
+public:
+ // construction/destruction
+ cr16b_disassembler();
+
+ // disassembler overrides
+ 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;
+
+protected:
+ enum cr16_arch
+ {
+ CR16A,
+ CR16B
+ };
+
+ cr16b_disassembler(cr16_arch arch);
+
+ // internal helpers
+ void format_reg(std::ostream &stream, u8 reg);
+ void format_rpair(std::ostream &stream, u8 reg);
+ virtual void format_rproc(std::ostream &stream, u8 reg);
+ void format_short_imm(std::ostream &stream, u8 imm);
+ void format_short_imm_unsigned(std::ostream &stream, u8 imm, bool i);
+ void format_short_imm_decimal(std::ostream &stream, u8 imm);
+ void format_medium_imm(std::ostream &stream, u16 imm, bool i);
+ void format_medium_imm_decimal(std::ostream &stream, u16 imm);
+ void format_imm21(std::ostream &stream, u32 imm);
+ void format_disp5(std::ostream &stream, u8 disp);
+ void format_disp16(std::ostream &stream, u16 disp);
+ void format_disp18(std::ostream &stream, u32 disp);
+ void format_abs18(std::ostream &stream, u32 addr);
+ void format_pc_disp5(std::ostream &stream, offs_t pc, u8 disp);
+ void format_pc_disp9(std::ostream &stream, offs_t pc, u16 disp);
+ void format_pc_disp17(std::ostream &stream, offs_t pc, u32 disp);
+ void format_pc_disp21(std::ostream &stream, offs_t pc, u32 disp);
+ void format_excp_vector(std::ostream &stream, u8 vec);
+
+private:
+ // static tables
+ static const char *const s_cc[14];
+
+ // architecture version
+ const cr16_arch m_arch;
+};
+
+class cr16a_disassembler : public cr16b_disassembler
+{
+public:
+ // construction/destruction
+ cr16a_disassembler();
+
+protected:
+ virtual void format_rproc(std::ostream &stream, u8 reg) override;
+};
+
+#endif // MAME_CPU_CR16B_CR16BDASM_H