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// license:BSD-3-Clause
// copyright-holders:Patrick Mackinlay
#ifndef MAME_MACHINE_NS32081_H
#define MAME_MACHINE_NS32081_H
#pragma once
#include "cpu/ns32000/common.h"
class ns32081_device_base
: public device_t
, public ns32000_fpu_interface
{
protected:
ns32081_device_base(machine_config const &mconfig, device_type type, char const *tag, device_t *owner, u32 clock);
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// ns32000_slave_interface implementation
virtual void state_add(device_state_interface &parent, int &index) override;
// slave interface handlers
template <typename T> T read();
template <typename T> void write(T data);
// execution helpers
bool decode(u8 const idbyte, u16 const opword);
void execute();
u16 status(int *icount);
void complete(s32 param);
// register helpers
virtual void reg_get(unsigned const op_size, u64 &op_value, unsigned const reg) const = 0;
virtual void reg_set(unsigned const reg, unsigned const op_size, u64 const op_value) = 0;
private:
emu_timer *m_complete;
u32 m_fsr; // floating-point status register
// operating state
u32 m_state;
u8 m_idbyte;
u16 m_opword;
struct operand
{
u32 expected;
u32 issued;
u64 value;
}
m_op[3];
u16 m_status;
u32 m_tcy;
};
class ns32081_device
: public ns32081_device_base
, public ns32000_slow_slave_interface
{
public:
ns32081_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock);
// ns32000_slave_interface implementation
virtual void state_add(device_state_interface &parent, int &index) override;
// ns32000_slow_slave_interface implementation
virtual u16 slow_status(int *icount = nullptr) override;
virtual u16 slow_read() override;
virtual void slow_write(u16 data) override;
protected:
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// register helpers
virtual void reg_get(unsigned const op_size, u64 &op_value, unsigned const reg) const override;
virtual void reg_set(unsigned const reg, unsigned const op_size, u64 const op_value) override;
private:
// registers
u32 m_f[8];
};
class ns32381_device
: public ns32081_device_base
, public ns32000_slow_slave_interface
, public ns32000_fast_slave_interface
{
public:
ns32381_device(machine_config const &mconfig, char const *tag, device_t *owner, u32 clock);
// ns32000_slave_interface implementation
virtual void state_add(device_state_interface &parent, int &index) override;
// ns32000_slow_slave_interface implementation
virtual u16 slow_status(int *icount = nullptr) override;
virtual u16 slow_read() override;
virtual void slow_write(u16 data) override;
// ns32000_fast_slave_interface implementation
virtual u32 fast_status(int *icount = nullptr) override;
virtual u32 fast_read() override;
virtual void fast_write(u32 data) override;
protected:
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
// register helpers
virtual void reg_get(unsigned const op_size, u64 &op_value, unsigned const reg) const override;
virtual void reg_set(unsigned const reg, unsigned const op_size, u64 const op_value) override;
private:
// registers
u64 m_l[8];
};
DECLARE_DEVICE_TYPE(NS32081, ns32081_device)
DECLARE_DEVICE_TYPE(NS32381, ns32381_device)
#endif // MAME_MACHINE_NS32081_H
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