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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
atarigen.h
General functions for Atari games.
***************************************************************************/
#ifndef MAME_MACHINE_ATARIGEN_H
#define MAME_MACHINE_ATARIGEN_H
#include "includes/slapstic.h"
#include "cpu/m6502/m6502.h"
#include "screen.h"
/***************************************************************************
CONSTANTS
***************************************************************************/
#define ATARI_CLOCK_14MHz XTAL(14'318'181)
#define ATARI_CLOCK_20MHz XTAL(20'000'000)
#define ATARI_CLOCK_32MHz XTAL(32'000'000)
#define ATARI_CLOCK_50MHz XTAL(50'000'000)
//**************************************************************************
// DEVICE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_ATARI_SOUND_COMM_ADD(_tag, _soundcpu, _intcb) \
MCFG_DEVICE_ADD(_tag, ATARI_SOUND_COMM, 0) \
downcast<atari_sound_comm_device &>(*device).set_sound_cpu(_soundcpu); \
devcb = &downcast<atari_sound_comm_device &>(*device).set_main_int_cb(DEVCB_##_intcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
#define PORT_ATARI_COMM_SOUND_TO_MAIN_READY(_tag) \
PORT_READ_LINE_DEVICE_MEMBER(_tag, atari_sound_comm_device, sound_to_main_ready)
#define PORT_ATARI_COMM_MAIN_TO_SOUND_READY(_tag) \
PORT_READ_LINE_DEVICE_MEMBER(_tag, atari_sound_comm_device, main_to_sound_ready)
// ======================> atari_sound_comm_device
// device type definition
DECLARE_DEVICE_TYPE(ATARI_SOUND_COMM, atari_sound_comm_device)
class atari_sound_comm_device : public device_t
{
public:
// construction/destruction
atari_sound_comm_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration helpers
void set_sound_cpu(const char *cputag) { m_sound_cpu_tag = cputag; }
template <class Object> devcb_base &set_main_int_cb(Object &&cb) { return m_main_int_cb.set_callback(std::forward<Object>(cb)); }
// getters
DECLARE_READ_LINE_MEMBER(main_to_sound_ready) { return m_main_to_sound_ready ? ASSERT_LINE : CLEAR_LINE; }
DECLARE_READ_LINE_MEMBER(sound_to_main_ready) { return m_sound_to_main_ready ? ASSERT_LINE : CLEAR_LINE; }
// main cpu accessors (forward internally to the atari_sound_comm_device)
DECLARE_WRITE8_MEMBER(main_command_w);
DECLARE_READ8_MEMBER(main_response_r);
DECLARE_WRITE16_MEMBER(sound_reset_w);
// sound cpu accessors
void sound_cpu_reset() { synchronize(TID_SOUND_RESET, 1); }
DECLARE_WRITE8_MEMBER(sound_response_w);
DECLARE_READ8_MEMBER(sound_command_r);
DECLARE_WRITE8_MEMBER(sound_irq_ack_w);
DECLARE_READ8_MEMBER(sound_irq_ack_r);
INTERRUPT_GEN_MEMBER(sound_irq_gen);
// additional helpers
DECLARE_WRITE_LINE_MEMBER(ym2151_irq_gen);
protected:
// sound I/O helpers
void update_sound_irq();
void delayed_sound_reset(int param);
void delayed_sound_write(int data);
void delayed_6502_write(int data);
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
// timer IDs
enum
{
TID_SOUND_RESET,
TID_SOUND_WRITE,
TID_6502_WRITE
};
// configuration state
const char * m_sound_cpu_tag;
devcb_write_line m_main_int_cb;
// internal state
m6502_device * m_sound_cpu;
bool m_main_to_sound_ready;
bool m_sound_to_main_ready;
uint8_t m_main_to_sound_data;
uint8_t m_sound_to_main_data;
uint8_t m_timed_int;
uint8_t m_ym2151_int;
};
/***************************************************************************
TYPES & STRUCTURES
***************************************************************************/
struct atarigen_screen_timer
{
screen_device *screen;
emu_timer * scanline_interrupt_timer;
emu_timer * scanline_timer;
};
class atarigen_state : public driver_device
{
public:
// construction/destruction
atarigen_state(const machine_config &mconfig, device_type type, const char *tag);
protected:
// users must call through to these
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void device_post_load() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// callbacks provided by the derived class
virtual void update_interrupts() = 0;
virtual void scanline_update(screen_device &screen, int scanline);
// interrupt handling
void scanline_int_set(screen_device &screen, int scanline);
DECLARE_WRITE_LINE_MEMBER(scanline_int_write_line);
INTERRUPT_GEN_MEMBER(scanline_int_gen);
DECLARE_WRITE16_MEMBER(scanline_int_ack_w);
DECLARE_WRITE_LINE_MEMBER(video_int_write_line);
DECLARE_WRITE16_MEMBER(video_int_ack_w);
// slapstic helpers
void slapstic_configure(cpu_device &device, offs_t base, offs_t mirror, uint8_t *mem);
void slapstic_update_bank(int bank);
DECLARE_WRITE16_MEMBER(slapstic_w);
DECLARE_READ16_MEMBER(slapstic_r);
// scanline timing
void scanline_timer_reset(screen_device &screen, int frequency);
void scanline_timer(emu_timer &timer, screen_device &screen, int scanline);
// video helpers
int get_hblank(screen_device &screen) const { return (screen.hpos() > (screen.width() * 9 / 10)); }
void halt_until_hblank_0(device_t &device, screen_device &screen);
// misc helpers
void blend_gfx(int gfx0, int gfx1, int mask0, int mask1);
// timer IDs
enum
{
TID_SCANLINE_INTERRUPT,
TID_SCANLINE_TIMER,
TID_UNHALT_CPU,
TID_ATARIGEN_LAST
};
uint8_t m_scanline_int_state;
uint8_t m_video_int_state;
optional_shared_ptr<uint16_t> m_xscroll;
optional_shared_ptr<uint16_t> m_yscroll;
/* internal state */
uint8_t m_slapstic_num;
uint16_t * m_slapstic;
uint8_t m_slapstic_bank;
std::vector<uint8_t> m_slapstic_bank0;
offs_t m_slapstic_last_pc;
offs_t m_slapstic_last_address;
offs_t m_slapstic_base;
offs_t m_slapstic_mirror;
uint32_t m_scanlines_per_callback;
atarigen_screen_timer m_screen_timer[2];
required_device<cpu_device> m_maincpu;
optional_device<gfxdecode_device> m_gfxdecode;
optional_device<screen_device> m_screen;
optional_device<palette_device> m_palette;
optional_shared_ptr<uint16_t> m_generic_paletteram_16;
optional_device<atari_slapstic_device> m_slapstic_device;
private:
static const atarigen_screen_timer *get_screen_timer(screen_device &screen);
};
/***************************************************************************
GENERAL ATARI NOTES
**************************************************************************##
Atari 68000 list:
Driver Pr? Up? VC? PF? P2? MO? AL? BM? PH?
---------- --- --- --- --- --- --- --- --- ---
arcadecl.c * * *
atarig1.c * * rle *
atarig42.c * * rle *
atarigt.c * rle *
atarigx2.c * rle *
atarisy1.c * * * * * 270->260
atarisy2.c * * * * * 150->120
badlands.c * * * 250->260
batman.c * * * * * * * * 200->160 ?
blstroid.c * * * 240->230
cyberbal.c * * * * 125->105 ?
eprom.c * * * * 170->170
gauntlet.c * * * * * * 220->250
klax.c * * * * 480->440 ?
offtwall.c * * * * 260->260
rampart.c * * * 280->280
relief.c * * * * * * 240->240
shuuz.c * * * * 410->290 fix!
skullxbo.c * * * * 150->145
thunderj.c * * * * * * * 180->180
toobin.c * * * * 140->115 fix!
vindictr.c * * * * * * 200->210
xybots.c * * * * * 235->238
---------- --- --- --- --- --- --- --- --- ---
Pr? - do we have verifiable proof on priorities?
Up? - have we updated to use new MO's & tilemaps?
VC? - does it use the video controller?
PF? - does it have a playfield?
P2? - does it have a dual playfield?
MO? - does it have MO's?
AL? - does it have an alpha layer?
BM? - does it have a bitmap layer?
PH? - does it use the palette hack?
***************************************************************************/
#endif // MAME_MACHINE_ATARIGEN_H
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