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// license:BSD-3-Clause
// copyright-holders:AJR
#ifndef MAME_CPU_VT61_VT61_H
#define MAME_CPU_VT61_VT61_H
#pragma once
class vt61_cpu_device : public cpu_device
{
public:
enum {
VT61_PC,
VT61_AC,
VT61_MAR, VT61_MALO, VT61_MAHI,
VT61_MDR,
VT61_IR,
VT61_R0, VT61_R1, VT61_R2, VT61_R3,
VT61_R4, VT61_R5, VT61_R6, VT61_R7,
VT61_R8, VT61_R9, VT61_R10, VT61_R11,
VT61_R12, VT61_R13, VT61_R14, VT61_R15,
VT61_MISC, VT61_MOD, VT61_INTRC
};
enum {
AS_IDR = 2
};
// construction/destruction
vt61_cpu_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_execute_interface overrides
virtual void execute_run() override;
// device_disasm_interface overrides
virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
// device_memory_interface overrides
virtual space_config_vector memory_space_config() const override;
// device_state_interface overrides
void state_string_export(const device_state_entry &entry, std::string &str) const override;
private:
// address spaces
address_space_config m_program_config;
address_space_config m_memory_config;
address_space_config m_idr_config;
memory_access_cache<1, -1, ENDIANNESS_LITTLE> *m_program_cache;
memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_memory_cache;
memory_access_cache<0, 0, ENDIANNESS_LITTLE> *m_idr_cache;
// processor state
u16 m_pc;
u8 m_ac;
u16 m_mar;
u8 m_mdr;
u8 m_ir;
u8 m_sp[16]; // scratchpad memory
s32 m_icount;
// I/O registers
u8 m_misc_flags;
u8 m_modem_flags;
u8 m_intrpt_control;
};
DECLARE_DEVICE_TYPE(VT61_CPU, vt61_cpu_device)
#endif // MAME_CPU_VT61_VT61_H
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