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// license:BSD-3-Clause
// copyright-holders:Sergey Svishchev
#ifndef MAME_CPU_IE15_IE15_H
#define MAME_CPU_IE15_IE15_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class ie15_cpu_device : public cpu_device
{
public:
// construction/destruction
ie15_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
enum
{
IE15_PC,
IE15_A,
IE15_R0, IE15_R1, IE15_R2, IE15_R3, IE15_R4, IE15_R5, IE15_R6, IE15_R7,
IE15_R8, IE15_R9, IE15_R10, IE15_R11, IE15_R12, IE15_R13, IE15_R14, IE15_R15,
IE15_R16, IE15_R17, IE15_R18, IE15_R19, IE15_R20, IE15_R21, IE15_R22, IE15_R23,
IE15_R24, IE15_R25, IE15_R26, IE15_R27, IE15_R28, IE15_R29, IE15_R30, IE15_R31
};
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_execute_interface overrides
virtual uint32_t execute_min_cycles() const noexcept override;
virtual uint32_t execute_max_cycles() const noexcept override;
virtual void execute_run() override;
// device_memory_interface overrides
virtual space_config_vector memory_space_config() const override;
// device_state_interface overrides
virtual void state_import(const device_state_entry &entry) override;
virtual void state_export(const device_state_entry &entry) override;
virtual void state_string_export(const device_state_entry &entry, std::string &str) const override;
// device_disasm_interface overrides
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
virtual void execute_one(int opcode);
uint8_t rop();
uint8_t get_reg_lo(uint8_t reg);
uint16_t get_reg(uint8_t reg);
void set_reg(uint8_t reg, uint16_t val);
uint8_t arg();
void update_flags(uint8_t val);
uint8_t do_condition(uint8_t val);
uint16_t get_addr(uint8_t val);
void illegal(uint8_t opcode);
int m_icount;
// configuration
const address_space_config m_program_config;
const address_space_config m_io_config;
uint8_t m_A;
PAIR m_PC;
uint16_t m_REGS[32]; // General registers (2 pages of 16)
uint8_t m_CF; // Carry flag
uint8_t m_ZF; // Zero flag
uint8_t m_RF; // Current register page
uint8_t m_flags; // temporary I/O only
address_space *m_program;
address_space *m_io;
memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_cache;
};
// device type definition
DECLARE_DEVICE_TYPE(IE15_CPU, ie15_cpu_device)
#endif // MAME_CPU_IE15_IE15_H
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