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// license:BSD-3-Clause
// copyright-holders:David Haywood, ElSemi
#ifndef MAME_MACHINE_IGS022_H
#define MAME_MACHINE_IGS022_H
#pragma once
class igs022_device : public device_t
{
public:
igs022_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
void handle_command();
protected:
virtual void device_start() override;
virtual void device_reset() override;
private:
static constexpr u16 NUM_REGS = 0x300, STACK_SIZE = 0x100;
u32 m_regs[NUM_REGS];
u32 m_stack[STACK_SIZE];
u8 m_stack_ptr;
optional_shared_ptr<u16> m_sharedprotram;
required_memory_region m_rom;
u32 read_reg(u16 offset);
void write_reg(u16 offset, u32 data);
void push_stack(u32 data);
u32 pop_stack();
std::string stack_as_string() const;
void do_dma(u16 src, u16 dst, u16 size, u16 mode);
void handle_command_6d();
void handle_incomplete_command(u16 cmd, u16 res);
};
DECLARE_DEVICE_TYPE(IGS022, igs022_device)
#endif // MAME_MACHINE_IGS022_H
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