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-rw-r--r--src/devices/cpu/cops1/cops1d.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/src/devices/cpu/cops1/cops1d.h b/src/devices/cpu/cops1/cops1d.h
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index 00000000000..1412e0c3c1b
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+++ b/src/devices/cpu/cops1/cops1d.h
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+// license:BSD-3-Clause
+// copyright-holders:hap
+/*
+
+ National Semiconductor COPS(MM57 MCU family) disassembler
+
+*/
+
+#ifndef MAME_CPU_COPS1_MM57D_H
+#define MAME_CPU_COPS1_MM57D_H
+
+#pragma once
+
+
+class cops1_common_disassembler : public util::disasm_interface
+{
+public:
+ cops1_common_disassembler();
+ virtual ~cops1_common_disassembler() = default;
+
+ virtual u32 opcode_alignment() const override { return 1; }
+ virtual u32 interface_flags() const override { return NONLINEAR_PC | PAGED; }
+ virtual u32 page_address_bits() const override { return 6; }
+ virtual offs_t pc_linear_to_real(offs_t pc) const override { return (pc & ~0x3f) | m_l2r[pc & 0x3f]; }
+ virtual offs_t pc_real_to_linear(offs_t pc) const override { return (pc & ~0x3f) | m_r2l[pc & 0x3f]; }
+
+protected:
+ // opcode mnemonics
+ enum e_mnemonics
+ {
+ em_ILL,
+ em_AD, em_ADD, em_SUB, em_COMP, em_0TA, em_ADX, em_HXA, em_TAM, em_SC, em_RSC, em_TC,
+ em_TIN, em_TF, em_TKB, em_TIR,
+ em_BTD, em_DSPA, em_DSPS, em_AXO, em_LDF, em_READ,
+ em_GO, em_CALL, em_RET, em_RETS, em_LG, em_LGCALL, em_NOP,
+ em_EXC, em_EXCM, em_EXCP, em_MTA, em_LM,
+ em_SM1, em_SM2, em_SM4, em_SM8, em_RSM1, em_RSM2, em_RSM4, em_RSM8, em_TM,
+ em_LB, em_LBL, em_ATB, em_BTA, em_HXBR
+ };
+
+ static const char *const s_name[];
+ static const uint8_t s_bits[];
+ static const uint32_t s_flags[];
+
+ u8 m_l2r[0x40];
+ u8 m_r2l[0x40];
+
+ offs_t increment_pc(offs_t pc);
+ offs_t common_disasm(const u8 *lut_opmap, std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params);
+};
+
+class mm5799_disassembler : public cops1_common_disassembler
+{
+public:
+ mm5799_disassembler() = default;
+ virtual ~mm5799_disassembler() = default;
+
+ virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
+
+private:
+ static const u8 mm5799_opmap[0x100];
+
+};
+
+#endif // MAME_CPU_COPS1_MM57D_H