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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/******************************************************************************
*
* Sony PlayStation 2 EE timer device skeleton
*
* To Do:
* Everything
*
*/
#ifndef MAME_MACHINE_PS2TIMER_H
#define MAME_MACHINE_PS2TIMER_H
#pragma once
class ps2_timer_device : public device_t
{
public:
ps2_timer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, bool can_hold)
: ps2_timer_device(mconfig, tag, owner, clock)
{
m_can_hold = can_hold;
}
ps2_timer_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
uint32_t read(offs_t offset, uint32_t mem_mask = ~0);
void write(offs_t offset, uint32_t data, uint32_t mem_mask = ~0);
protected:
enum timer_mode_mask : uint32_t
{
MODE_CLKS = (3 << 0),
MODE_GATE = (1 << 2),
MODE_GATS = (1 << 3),
MODE_GATM = (3 << 4),
MODE_ZRET = (1 << 6),
MODE_CUE = (1 << 7),
MODE_CMPE = (1 << 8),
MODE_OVFE = (1 << 9),
MODE_EQUF = (1 << 10),
MODE_OVFF = (1 << 11),
};
enum timer_gate_mode : uint32_t
{
GATM_LOW = 0,
GATM_RISING,
GATM_FALLING,
GATM_BOTH
};
enum timer_clock_select : uint32_t
{
CLKS_BUSCLK1 = 0,
CLKS_BUSCLK16,
CLKS_BUSCLK256,
CLKS_HBLNK
};
enum timer_gate_select : uint32_t
{
GATS_HBLNK = 0,
GATS_VBLNK
};
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
TIMER_CALLBACK_MEMBER(compare);
TIMER_CALLBACK_MEMBER(overflow);
void update_gate();
void update_interrupts();
void update_compare_timer();
void update_overflow_timer();
void update_count();
void update_hold();
void set_mode(uint32_t data);
emu_timer *m_compare_timer;
emu_timer *m_overflow_timer;
uint32_t m_mode;
attotime m_last_enable_time;
attotime m_last_update_time;
attotime m_elapsed_time;
bool m_enabled;
bool m_zero_return;
uint32_t m_count;
uint32_t m_compare;
bool m_can_hold;
uint32_t m_hold;
timer_clock_select m_clk_select;
bool m_gate_enable;
timer_gate_select m_gate_select;
timer_gate_mode m_gate_mode;
bool m_cmp_int_enabled;
bool m_cmp_int;
bool m_ovf_int_enabled;
bool m_ovf_int;
};
DECLARE_DEVICE_TYPE(SONYPS2_TIMER, ps2_timer_device)
#endif // MAME_MACHINE_PS2TIMER_H
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