diff options
Diffstat (limited to 'src/devices/machine/ldv1000.h')
-rw-r--r-- | src/devices/machine/ldv1000.h | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/src/devices/machine/ldv1000.h b/src/devices/machine/ldv1000.h index 2d19b81c4e3..7c4fb58425a 100644 --- a/src/devices/machine/ldv1000.h +++ b/src/devices/machine/ldv1000.h @@ -35,7 +35,7 @@ DECLARE_DEVICE_TYPE(PIONEER_LDV1000, pioneer_ldv1000_device) // ======================> pioneer_ldv1000_device // base ldv1000 class -class pioneer_ldv1000_device : public laserdisc_device +class pioneer_ldv1000_device : public parallel_laserdisc_device { public: // construction/destruction @@ -44,25 +44,16 @@ public: auto command_strobe_callback() { return m_command_strobe_cb.bind(); } // input and output - void data_w(uint8_t data); - void enter_w(uint8_t data); - uint8_t status_r() const { return m_status; } - uint8_t status_strobe_r() const { return (m_portc1 & 0x20) ? ASSERT_LINE : CLEAR_LINE; } - uint8_t command_strobe_r() const { return (m_portc1 & 0x10) ? ASSERT_LINE : CLEAR_LINE; } + virtual void data_w(uint8_t data) override; + virtual void enter_w(int state) override { } + virtual uint8_t data_r() override { return m_status; } + virtual int status_strobe_r() override { return BIT(m_portc1, 5); } + virtual int ready_r() override { return BIT(m_portc1, 4); } protected: - // timer IDs - enum - { - TID_MULTIJUMP = TID_FIRST_PLAYER_TIMER, - TID_VSYNC_OFF, - TID_VBI_DATA_FETCH - }; - // 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; virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_add_mconfig(machine_config &config) override; @@ -71,6 +62,10 @@ protected: virtual int32_t player_update(const vbi_metadata &vbi, int fieldnum, const attotime &curtime) override; virtual void player_overlay(bitmap_yuy16 &bitmap) override { } + TIMER_CALLBACK_MEMBER(vsync_off); + TIMER_CALLBACK_MEMBER(multijump_tick); + TIMER_CALLBACK_MEMBER(process_vbi_data); + private: // internal helpers bool focus_on() const { return !(m_portb1 & 0x01); } @@ -97,19 +92,21 @@ private: void ldv1000_portmap(address_map &map); // internal state - required_device<z80_device> m_z80_cpu; /* CPU index of the Z80 */ - required_device<z80ctc_device> m_z80_ctc; /* CTC device */ - emu_timer * m_multitimer; /* multi-jump timer device */ + required_device<z80_device> m_z80_cpu; /* CPU index of the Z80 */ + required_device<z80ctc_device> m_z80_ctc; /* CTC device */ + emu_timer * m_multitimer; /* multi-jump timer device */ + emu_timer * m_vsync_off_timer; /* vsync-shutoff timer device */ + emu_timer * m_process_vbi_timer; /* VBI processing timer device */ devcb_write_line m_command_strobe_cb; /* communication status */ - uint8_t m_command; /* command byte to the player */ + uint8_t m_command; /* command byte to the player */ uint8_t m_status; /* status byte from the player */ - bool m_vsync; /* VSYNC state */ + bool m_vsync; /* VSYNC state */ /* I/O port states */ uint8_t m_counter_start; /* starting value for counter */ - uint8_t m_counter; /* current counter value */ + uint8_t m_counter; /* current counter value */ uint8_t m_portc0; /* port C on PPI 0 */ uint8_t m_portb1; /* port B on PPI 1 */ uint8_t m_portc1; /* port C on PPI 1 */ @@ -118,9 +115,9 @@ private: uint8_t m_portselect; /* selection of which port to access */ uint8_t m_display[2][20]; /* display lines */ uint8_t m_dispindex; /* index within the display line */ - uint8_t m_vbi[7*3]; /* VBI data */ - bool m_vbiready; /* VBI ready flag */ - uint8_t m_vbiindex; /* index within the VBI data */ + uint8_t m_vbi[7*3]; /* VBI data */ + bool m_vbiready; /* VBI ready flag */ + uint8_t m_vbiindex; /* index within the VBI data */ }; |