diff options
Diffstat (limited to 'trunk/src/emu/machine/ldv1000.h')
-rw-r--r-- | trunk/src/emu/machine/ldv1000.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/trunk/src/emu/machine/ldv1000.h b/trunk/src/emu/machine/ldv1000.h new file mode 100644 index 00000000000..b42ccf54ff2 --- /dev/null +++ b/trunk/src/emu/machine/ldv1000.h @@ -0,0 +1,158 @@ +/************************************************************************* + + ldv1000.h + + Pioneer LD-V1000 laserdisc emulation. + +**************************************************************************** + + Copyright Aaron Giles + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name 'MAME' nor the names of its contributors may be + used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR + IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT, + INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + +*************************************************************************/ + +#pragma once + +#ifndef __LDV1000_H__ +#define __LDV1000_H__ + +#include "laserdsc.h" +#include "cpu/z80/z80.h" +#include "cpu/mcs48/mcs48.h" +#include "machine/z80ctc.h" + + +//************************************************************************** +// DEVICE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_LASERDISC_LDV1000_ADD(_tag) \ + MCFG_DEVICE_ADD(_tag, PIONEER_LDV1000, 0) \ + + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +// device type definition +extern const device_type PIONEER_LDV1000; + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> pioneer_ldv1000_device + +// base ldv1000 class +class pioneer_ldv1000_device : public laserdisc_device +{ +public: + // construction/destruction + pioneer_ldv1000_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // input and output + void data_w(UINT8 data); + void enter_w(UINT8 data); + UINT8 status_r() const { return m_status; } + UINT8 status_strobe_r() const { return (m_portc1 & 0x20) ? ASSERT_LINE : CLEAR_LINE; } + UINT8 command_strobe_r() const { return (m_portc1 & 0x10) ? ASSERT_LINE : CLEAR_LINE; } + +protected: + // timer IDs + enum + { + TID_MULTIJUMP = TID_FIRST_PLAYER_TIMER, + TID_VSYNC_OFF, + TID_VBI_DATA_FETCH + }; + + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + + // subclass overrides + virtual void player_vsync(const vbi_metadata &vbi, int fieldnum, attotime curtime); + virtual INT32 player_update(const vbi_metadata &vbi, int fieldnum, attotime curtime); + virtual void player_overlay(bitmap_yuy16 &bitmap) { } + + // internal helpers + bool focus_on() const { return !(m_portb1 & 0x01); } + bool spdl_on() const { return !(m_portb1 & 0x02); } + bool laser_on() const { return (m_portb1 & 0x40); } + +public: + // internal read/write handlers + DECLARE_WRITE_LINE_MEMBER( ctc_interrupt ); + DECLARE_WRITE8_MEMBER( z80_decoder_display_port_w ); + DECLARE_READ8_MEMBER( z80_decoder_display_port_r ); + DECLARE_READ8_MEMBER( z80_controller_r ); + DECLARE_WRITE8_MEMBER( z80_controller_w ); + DECLARE_WRITE8_MEMBER( ppi0_porta_w ); + DECLARE_READ8_MEMBER( ppi0_portb_r ); + DECLARE_READ8_MEMBER( ppi0_portc_r ); + DECLARE_WRITE8_MEMBER( ppi0_portc_w ); + DECLARE_READ8_MEMBER( ppi1_porta_r ); + DECLARE_WRITE8_MEMBER( ppi1_portb_w ); + DECLARE_WRITE8_MEMBER( ppi1_portc_w ); + +protected: + // 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 */ + + /* communication status */ + UINT8 m_command; /* command byte to the player */ + UINT8 m_status; /* status byte from the player */ + bool m_vsync; /* VSYNC state */ + + /* I/O port states */ + UINT8 m_counter_start; /* starting value for counter */ + UINT8 m_counter; /* current counter value */ + UINT8 m_portc0; /* port C on PPI 0 */ + UINT8 m_portb1; /* port B on PPI 1 */ + UINT8 m_portc1; /* port C on PPI 1 */ + + /* display/decode circuit emulation */ + UINT8 m_portselect; /* selection of which port to access */ + UINT8 m_display[2][20]; /* display lines */ + UINT8 m_dispindex; /* index within the display line */ + UINT8 m_vbi[7*3]; /* VBI data */ + bool m_vbiready; /* VBI ready flag */ + UINT8 m_vbiindex; /* index within the VBI data */ +}; + + +#endif |