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// license:BSD-3-Clause
// copyright-holders:R. Belmont
#ifndef MAME_MACHINE_CUDA_H
#define MAME_MACHINE_CUDA_H
#pragma once
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define CUDA_TAG "cuda"
#define CUDA_341S0060 0x1100 // v2.40 (Most common: Performa/Quadra 6xx, PowerMac x200, x400, x500, Pippin, Gossamer G3)
#define CUDA_341S0788 0x2200 // v2.37 (LC 475/575/Quadra 605, Quadra 660AV/840AV, PowerMac x200)
#define CUDA_341S0417 0x3300 // v2.35 (Color Classic)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> cuda_device
class cuda_device : public device_t, public device_nvram_interface
{
public:
// construction/destruction
cuda_device(const machine_config &mconfig, const char *tag, device_t *owner, int type)
: cuda_device(mconfig, tag, owner, (uint32_t)0)
{
set_type(type);
}
cuda_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// inline configuration helpers
void set_type(int type) { rom_offset = type; }
// device_config_nvram_interface overrides
virtual void nvram_default() override;
virtual bool nvram_read(util::read_stream &file) override;
virtual bool nvram_write(util::write_stream &file) override;
uint8_t ddr_r(offs_t offset);
void ddr_w(offs_t offset, uint8_t data);
uint8_t ports_r(offs_t offset);
void ports_w(offs_t offset, uint8_t data);
uint8_t pll_r();
void pll_w(uint8_t data);
uint8_t timer_ctrl_r();
void timer_ctrl_w(uint8_t data);
uint8_t timer_counter_r();
void timer_counter_w(uint8_t data);
uint8_t onesec_r();
void onesec_w(uint8_t data);
uint8_t pram_r(offs_t offset);
void pram_w(offs_t offset, uint8_t data);
// VIA interface routines
uint8_t get_treq() { return treq; }
void set_tip(uint8_t val) { tip = val; }
void set_byteack(uint8_t val) { byteack = val; }
uint8_t get_via_data() { return via_data; }
void set_via_data(uint8_t dat) { via_data = dat; }
uint8_t get_via_clock() { return via_clock; }
void set_adb_line(int linestate) { adb_in = (linestate == ASSERT_LINE) ? true : false; }
int get_adb_dtime() { return m_adb_dtime; }
int rom_offset;
auto reset_callback() { return write_reset.bind(); }
auto linechange_callback() { return write_linechange.bind(); }
auto via_clock_callback() { return write_via_clock.bind(); }
auto via_data_callback() { return write_via_data.bind(); }
devcb_write_line write_reset, write_linechange, write_via_clock, write_via_data;
void cuda_map(address_map &map);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
TIMER_CALLBACK_MEMBER(seconds_tick);
TIMER_CALLBACK_MEMBER(timer_tick);
required_device<cpu_device> m_maincpu;
private:
uint8_t ddrs[3]{};
uint8_t ports[3]{};
uint8_t pll_ctrl = 0;
uint8_t timer_ctrl = 0;
uint8_t timer_counter = 0, ripple_counter = 0;
uint8_t onesec = 0;
uint8_t treq = 0, byteack = 0, tip = 0, via_data = 0, via_clock = 0, last_adb = 0;
uint64_t last_adb_time = 0;
bool cuda_controls_power = false;
bool adb_in = false;
int reset_line = 0;
int m_adb_dtime = 0;
emu_timer *m_timer = nullptr, *m_prog_timer = nullptr;
uint8_t pram[0x100]{}, disk_pram[0x100]{};
bool pram_loaded = false;
void send_port(uint8_t offset, uint8_t data);
};
// device type definition
DECLARE_DEVICE_TYPE(CUDA, cuda_device)
#endif // MAME_MACHINE_CUDA_H
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