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Diffstat (limited to 'src/devices/cpu/ie15/ie15.h')
-rw-r--r-- | src/devices/cpu/ie15/ie15.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/devices/cpu/ie15/ie15.h b/src/devices/cpu/ie15/ie15.h new file mode 100644 index 00000000000..8aaaa5a81ab --- /dev/null +++ b/src/devices/cpu/ie15/ie15.h @@ -0,0 +1,92 @@ +// license:BSD-3-Clause +// copyright-holders:Sergey Svishchev +#ifndef __IE15_H__ +#define __IE15_H__ + +//************************************************************************** +// ENUMERATIONS +//************************************************************************** + +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, + + IE15_GENPC = STATE_GENPC, + IE15_GENPCBASE = STATE_GENPCBASE +}; + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class ie15_device; + +class ie15_device : public cpu_device +{ +public: + // construction/destruction + ie15_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_execute_interface overrides + virtual UINT32 execute_min_cycles() const; + virtual UINT32 execute_max_cycles() const; + virtual void execute_run(); + + // device_memory_interface overrides + virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const; + + // device_state_interface overrides + virtual void state_import(const device_state_entry &entry); + virtual void state_export(const device_state_entry &entry); + virtual void state_string_export(const device_state_entry &entry, std::string &str); + + // device_disasm_interface overrides + virtual UINT32 disasm_min_opcode_bytes() const; + virtual UINT32 disasm_max_opcode_bytes() const; + virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options); + + virtual void execute_one(int opcode); + + UINT8 rop(); + UINT8 get_reg_lo(UINT8 reg); + UINT16 get_reg(UINT8 reg); + void set_reg(UINT8 reg, UINT16 val); + UINT8 arg(); + void update_flags(UINT8 val); + UINT8 do_condition(UINT8 val); + UINT16 get_addr(UINT8 val); + void illegal(UINT8 opcode); + + int m_icount; + + // configuration + const address_space_config m_program_config; + const address_space_config m_io_config; + + UINT8 m_A; + PAIR m_PC; + UINT16 m_REGS[32]; // General registers (2 pages of 16) + UINT8 m_CF; // Carry flag + UINT8 m_ZF; // Zero flag + UINT8 m_RF; // Current register page + UINT8 m_flags; // temporary I/O only + + address_space *m_program; + address_space *m_io; + direct_read_data *m_direct; +}; + +// device type definition +extern const device_type IE15; + +#endif |