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-// license:LGPL-2.1+
-// copyright-holders:David Haywood, Angelo Salese, Olivier Galibert, Mariusz Wojcieszek, R. Belmont
-/**************************************************************************************************
-
- Driver by David Haywood, Angelo Salese, Olivier Galibert & Mariusz Wojcieszek
- SCSP driver provided by R. Belmont, based on ElSemi's SCSP sound chip emulator
- Many thanks to Guru, Fabien, Runik and Charles MacDonald for the help given.
-
-***************************************************************************************************
-
-Sega Saturn
-(C) Sega 1994/1995/1996/1997
-
-The Sega Saturn is a 32-bit 5th-generation home video game console that was developed by Sega and released
-on November 22nd 1994 in Japan, May 11th 1995 in North America, and July 8th 1995 in Europe as the successor
-to the Sega Genesis. The Saturn has a dual-CPU architecture and a total of eight processors.
-The games are on CD-ROM.
-
-Basic Hardware:
-
-Processors (8)
-----------
-Two Hitachi SH2 32-bit RISC @ 28.63636MHz
-One Hitachi SH1 32-bit RISC @ 20.0MHz
-Two 32-bit video display processors (VDP 1 / VDP 2)
-One Saturn Control Unit processor (SCU) @ 14.31818MHz
-One Motorola 68EC000 sound processor @ 11.2896MHz
-One Yamaha YMF292-F DSP sound processor @ 28.63636MHz
-
-Memory
-------
-16 Megabits DRAM
-12 Megabits VRAM (Video RAM)
-4 Megabits Audio DRAM
-4 Megabits CD-ROM Cache DRAM
-256 Kbits battery-backed SRAM
-
-Video
------
-VDP 1
-- 32-bit video display processor
-- Sprite, polygon, and geometry engine
-- Dual 256Kb frame buffers for rotation and scaling effects
-- Texture Mapping
-- Goraud Shading
-- 512Kb cache for textures
-VDP 2
-- 32-bit background and scroll plane video display processor
-- Background engine
-- 5 simulataneous scrolling backgrounds
-- 2 simultaneous rotating playfields
-- 200,000 Texture Mapped Polygons/Second
-- 500,000 Flat Shaded Polygons/Second
-- Up to 60 frames per second animation
-- 24-bit True Color Graphics
-- 16 Million Available Colors
-- 320x224, 640x224, and 720x576 Resolution
-
-Audio
------
-Motorola 68EC000 sound processor @ 11.2896MHz
-Yamaha 24-bit Digital Signal Processor @ 28.63636MHz
-- 32 PCM (Pulse Code Modulation) Channels
-- 8 FM (Frequency Modulation) Channels
-- 44.1 kHz Sampling Rate
-
-Storage
--------
-CD-ROM (2X)
-- 320 Kb/Second transfer speed
-- Compatible with Audio CD, CD+G, CD+EG, CD Single (8cm)
- and with optional hardware; Video CD, Photo CD & Digital Karaoke
-- Optional additional memory cartridge
-
-Input/Output
-------------
-High speed serial communications port
-Internal 32-bit expansion port
-Internal Multi AV port for optional Video CD (MPEG) decoder board
-Composite video & stereo audio (Standard)
-Optional RF(TV), S-Video & RGB outputs
-2 ports for analog control pad, light gun or other controllers
-
-
-PCB Layouts
------------
-There were *many* main board revisions. The two general 'sizes' are documented here.
-
-Small board (VA revision documented)
------------
-Main board with a separate small sub-board for the controller ports, power LED and reset button.
-The power supply is slightly longer than the main board, has a 5 pin connector and outputs 9VDC, 5VDC and 3.3VDC
-
-837-12126 IC BD SATURN MAIN VA SG
-171-7128B (C) SEGA 1995 PC BD SATURN MAIN VA SG
-(This PCB was found in a USA Saturn, Model MK-80000, also known as Saturn model 1 with BIOS MPR-17941)
-
-837-12135 IC BD SATURN MAIN VA PAL SD
-171-7131A (C) SEGA 1995 PC BD SATURN MAIN VA PAL SD
-(This PCB was found in a PAL Saturn, Model MK-80200-50, also known as Saturn model 1 PAL with BIOS MPR-17942)
-
-(note both of these PCBs listed above are almost identical)
-
-|VIDEO--COMM-----------------------------------------------|
-| CART_SLOT SW1 BATTERY |
-|ADAC CXA1645M |--------| |-------| 20MHz |
-| SW2 |315-5688| |YGR019B| TC514260 |
-| ^4502161 | | | | |-------| |
-| ^4502161 |--------| |--------| |-------| |HD6437097 |
-| |--------| |315-5890| *D489020 | | |
-| |315-5883| | | 81141625 81141625 |-------| |
-| | | |--------| CARD_SLOT |
-| |--------| ^4502161 HC08 |
-| ^5241605 ^4502161 |----| |----| |--------| |
-| 514270 |--------|HC04 |SH-2| |SH-2| |315-5914| |
-| |-----| |315-5687|HC04 |----| |----| |--------| |
-| |68000| | | |------|32.768kHz |
-| |-----| |--------| 315-5744 LS245 TC514260 |
-| ^74HC157 315-5746 |------| ^62257 ^ROM CN4|
-| CN3 CN7 &14.31818MHz CN2 LS245 TC514260 |
-|----------------------------------------------------------|
-Notes: (all IC's shown. ^ denotes these parts are on the other side of the PCB)
- ROM - SOP40 mask ROM for BIOS.
- Chip is pin-compatible with Toshiba TC574200 or MX27C4100 and can be read with a simple 1:1 DIP40 to SOP40 adapter
- JAPAN BIOS marked 'MPR-17940-MX' or 'MPR-17940-T'
- USA BIOS marked 'MPR-17941-MX' or 'MPR-17941-T'
- PAL BIOS marked 'MPR-17942-MX' or 'MPR-17942-T'
- T = Toshiba, MX = Macronix. Both contain identical data
- Other BIOSes known to exist include:
- (These are mainly on the very MPR-16605-T
- early version main boards VA0/VA1 MPR-16606-T
- and are all DIP chips) MPR-16606A-T
- MPR-17577-T
- EPR-17578 HI-SATURN BOOT ROM VER 1.01 SUM AA44 '95 1/27 (EPROM)
- 81141625 - Fujitsu 81141625-017 128k x16-bit x 2 banks (4Mbit) SDRAM \ compatible
- 5241605 - Hitachi HM5241605TT17S or HM524165CTT17S 128k x16-bit x 2 banks (4Mbit) SDRAM /
- The two 81141625 are the WORK RAM HIGH and the two TC514260 (near the ROM) make up the WORK RAM LOW
- The 5241605 is the VDP1 Sprite RAM
- D489020 - NEC D489020GF-A15 SGRAM (probably 8Mbit). *- This single chip is replaced by two 81141625 IC's on some boards
- 4502161 - NEC D4502161G5-A12 or Sanyo LC382161T-17 64k x16-bit x 2 banks (2Mbit) SDRAM
- Two chips are used for the VDP1 Frame RAM, the other two are for the VDP2 Video RAM
- TC514260 - 256k x16-bit (4Mbit) DRAM. Any of the following compatible chips are used....
- Hitachi HM514260AJ7 / HM514260CJ7
- Toshiba TC514260BJ-70
- Fujitsu 814260-70
- Mitsubishi M5M44260CJ
- Samsung KM416C256BJ-7
- Hyundai HY514260B JC-70
- Vanguard VG264260AJ
- Panasonic MN414260CSJ-07
- HM514270 - Hitachi HM514270 256k x16-bit (4Mbit) DRAM, used for the sound WORK RAM
- 62257 - Epson SRM20257LLM10 32k x8-bit (256kbit) battery-backed SRAM (also used SONY CXK58257AM-10L, NEC UPD43257B-10LL, UM62257AM-70LL)
- ADAC - Dual CMOS Audio DAC. Either Burr-Brown BBPCM1710U or Philips TDA1386T
- CXA1645M - Sony CXA1645M RGB to Composite Video Encoder
- SH-2 - Hitachi HD6417095 SH-2 CPU. Clock input 28.63636MHz (14.31818*2)
- 68000 - Motorola MC68EC000FN12 CPU. Clock input 11.2896MHz
- & - Master Clock. 14.31818MHz for USA revision or 17.7344MHz for PAL revision
- 315-5744 - Sega 315-5744 Hitachi HD404920 microcontroller used as the System Manager and Peripheral Controller (SMPC)
- 315-5746 - Sega 315-5746 Phase-locked Loop (PLL) clock generator IC
- 315-5883 - Sega 315-5883 Hitachi HD64440 Video Display Processor 1 (VDP1). Earliest revision is 315-5689
- 315-5687 - Sega 315-5687 Yamaha YMF292-F Saturn Custom Sound Processor (SCSP). Clock input 28.63636MHz (14.31818*2)
- 315-5688 - Sega 315-5688 System Control Unit (SCU). Clock input 14.31818MHz
- 315-5890 - Sega 315-5890 Video Display Processor 2 (VDP2)
- 315-5914 - Sega 315-5914 DRAM controller. Earliest revision is 315-5778. Later revision is 315-5963
- HD6437097 - Hitachi HD6437097F20 SH1 (SH7034 family) microcontroller with 64k internal ROM. Clock input 20.000MHz
- YGR019B - Hitachi YGR019B CD-Subsystem LSI. Earlier revision is YGR019A. Later revision combines this IC and the SH1 together
- into one IC (YGR022 315-5962). The SH1 and the YGR019B make up the 'CD Block' CD Authentication and CD I/O data controller.
- Another of it's functions is to prevent copied CDs from being played
- VIDEO - 10-pin Mini-DIN video output port
- COMM - Communication port
- CARD_SLOT - Expansion slot for MPEG decoder card and other optional expansions
- CART_SLOT - Expansion slot for plug-in RAM or ROM carts
- SW1 - Master reset switch accessible behind the card slot/battery cover. Pressing this clears the battery-backed SRAM, resets the system
- and the user has to set the language, date and time
- BATTERY - CR2032 3V lithium coin battery. When the system is off the battery provides power to the backup SRAM and SMPC which contains an RTC
- SW2 - CDROM cover open/close detection switch
- CN2 - 24-pin flat cable connector for control port board
- CN3 - 5-pin power connector
- CN4 - Flat cable connector for CDROM data cable. On some main board revisions the connector is reversed and the cable is folded so it
- is also reversed/flipped 180 degrees at the other end
- CN7 - 5-pin connector for CDROM power
-
-
-Control Port board
-------------------
-839-0820 EXPORT
-839-0821 PAL
-PC BD SATURN PIO VA EXPORT 171-7112A (C) SEGA 1995 CSPD CAD-TEAM
-|---------------------------------|
-| FLAT-CABLE |
-| |
-| GREEN-LED RED-LED RESET|
-|--PORT1-----PORT2----------------|
-Notes:
- PORT1/2 - Controller ports for controller/joystick/lightgun etc
- GREEN-LED - Power LED
- RED-LED - CDROM drive access LED
- RESET - Push-button reset switch
- FLAT-CABLE - 24-pin flat cable joined to main board CN2
-
-
-Large board (VA7 revision documented)
------------
-This is a single main board containing everything.
-
-837-12643 IC BD SATURN MAIN VA7 USA SD
-171-7208C (C) SEGA 1996 PC BD SATURN MAIN VA7 USA SD
-(This PCB was found in a USA Saturn, Model MK-80000A, also known as Saturn model 2 with BIOS MPR-17941)
-
-837-12992 IC BD SATURN MAIN VA7 PAL
-171-7424A (C) SEGA 1996 PC BD SATURN MAIN VA7 PAL
-(This PCB was found in a PAL Saturn, Model MK-80200A-50, also known as Saturn model 2 PAL with BIOS MPR-17942)
-
-(note both of these PCBs listed above are almost identical)
-
-|VIDEO--COMM-----------------------------------------------|
-| CART_SLOT BATTERY |
-| SW2 |--------| |
-|ADAC RGB |315-5966| |--------| ^TC514260 |
-| | | |YGR022 | |
-| |--------| |315-5962| |
-| |--------| |
-| |--------| |--------| 20MHz |
-| |315-5687| |315-5964| CARD_SLOT |
-| | | | | |
-| |--------| |--------| |----| LS245 HC08 |
-| ^HM514270 ^524165 HC04 |SH-2| |
-| ^5221605 ^5221605 |----| TC514260 |
-| ^5221605 ^5221605 |
-| |--------| TC514260 |
-| |-----| |315-5883| HC04 |
-| |68000| | |&14.31818MHz |----| |--------| |
-| |-----| |--------| %CY2292 |SH-2| |315-5977-01 |
-|CN3 |------| |----| |--------| |
-| 315-5744 62257 CN4|
-| CN7 |------| |
-|--| 32.768kHz LS245 81141625 81141625 ROM |--|
- | GREEN-LED RESET |
- |-------------------PORT1-----PORT2------------------|
-Notes: (all IC's shown. ^ denotes these parts are on the other side of the PCB)
- ROM - SOP40 mask ROM for BIOS.
- Chip is pin-compatible with Toshiba TC574200 or MX27C4100 and can be read with a simple 1:1 DIP40 to SOP40 adapter
- JAPAN BIOS marked 'MPR-17940-MX' or 'MPR-17940-T'
- USA BIOS marked 'MPR-17941-MX' or 'MPR-17941-T'
- PAL BIOS marked 'MPR-17942-MX' or 'MPR-17942-T'
- T = Toshiba, MX = Macronix. Both contain identical data
- 81141625 - Fujitsu 81141625-017 128k x16-bit x 2 banks (4Mbit) SDRAM
- The two 81141625 are the WORK RAM HIGH and two TC514260 (near the SH-2) make up the WORK RAM LOW
- 524165 - Hitachi HM524165CTT17S 128k x16-bit x 2 banks (4Mbit) SDRAM. This is the VDP1 Sprite RAM
- 5221605 - Hitachi HM5221605TT17S 64k x16-bit x 2 banks (2Mbit) SDRAM
- Two chips are used for the VDP1 Frame RAM, the other two are for the VDP2 Video RAM
- TC514260 - 256k x16-bit (4Mbit) DRAM. Any of the following compatible chips are used....
- Hitachi HM514260AJ7 / HM514260CJ7
- Toshiba TC514260BJ-70
- Fujitsu 814260-70
- Mitsubishi M5M44260CJ
- Samsung KM416C256BJ-7
- Hyundai HY514260B JC-70
- Vanguard VG264260AJ
- Panasonic MN414260CSJ-07
- HM514270 - Hitachi HM514270 256k x16-bit (4Mbit) DRAM, used for the sound WORK RAM
- 62257 - Epson SRM20257LLM10 32k x8-bit (256kbit) battery-backed SRAM (also used SONY CXK58257AM-10L, NEC UPD43257B-10LL, UM62257AM-70LL)
- ADAC - Dual CMOS Audio DAC. Either Burr-Brown BBPCM1710U or Philips TDA1386T
- RGB - RGB to Composite Video Encoder with PAL & NTSC output capability. IC is either Fujitsu MB3516A or ROHM BH7236AF
- SH-2 - Hitachi HD6417095 SH-2 CPU. Clock input 28.63636MHz (14.31818*2)
- 68000 - Motorola MC68EC000FN12 CPU. Clock input 11.2896MHz
- CY2292 - Cypress CY2292SC-04 PLL clock generator IC. % = On the VA7 PAL version this chip is replaced with the older Sega PLL (315-5746)
- & - Master Clock. 14.31818MHz for USA revision or 17.7344MHz for PAL revision
- 315-5744 - Sega 315-5744 Hitachi HD404920 microcontroller used as the System Manager and Peripheral Controller (SMPC)
- 315-5883 - Sega 315-5883 Hitachi HD64440 Video Display Processor 1 (VDP1).
- 315-5687 - Sega 315-5687 Yamaha YMF292-F Saturn Custom Sound Processor (SCSP). Clock input 28.63636MHz (14.31818*2)
- 315-5964 - Sega 315-5964 Video Display Processor 2 (VDP2)
- 315-5966 - Sega 315-5966 System Control Unit (SCU). Clock input 14.31818MHz
- 315-5977-01 - Sega 315-5977-01 DRAM controller
- YGR022 - Hitachi YGR022 Sega 315-5962 single IC containing CD-Subsystem LSI and Hitachi SH-1 microcontroller with 64k internal ROM. Clock input 20.000MHz
- VIDEO - 10-pin Mini-DIN video output port
- COMM - Communication port
- CARD_SLOT - Expansion slot for MPEG decoder card and other optional expansions
- CART_SLOT - Expansion slot for plug-in RAM or ROM carts
- BATTERY - CR2032 3V lithium coin battery. When the system is off the battery provides power to the backup SRAM and SMPC which contains an RTC
- SW2 - CDROM cover open/close detection switch
- CN3 - 4-pin or 5-pin power connector
- CN4 - Flat cable connector for CDROM data cable
- CN7 - 5-pin connector for CDROM power
- PORT1/2 - Controller ports for controller/joystick/lightgun etc
- GREEN-LED - Power LED
- RESET - Push-button reset switch
-
-
-Motherboard List
-----------------
-Board types used in Model 1: VA0 to VA3
-Board types used in Model 2: VA2 to VA15
-If the VA-number is an even number the board uses a single 8Mbit SGRAM for some of the work RAM, if an odd number it uses two 4Mbit SDRAMs.
-Note there are MANY missing. Please help to update this list if you have info for others not listed here.
-
-837-11076 IC BD SATURN MAIN VA0.5 171-6874E PC BD SATURN MAIN VA0.5 (C) SEGA 1994
-837-11076-01 IC BD SATURN MAIN VA0 CCI 171-6874D PC BD SATURN MAIN VA0.5 (C) SEGA 1994
-837-11491 IC BD SATURN MAIN VA0 171-6962A PC BD SATURN MAIN VA0 USA (C) SEGA 1995
-837-11493 IC BD SATURN MAIN VA0 PAL 171-6963B PC BD SATURN MAIN VA0 PAL (C) SEGA 1995
-837-11613-01 IC BD SATURN MAIN VA1 171-7006C PC BD SATURN MAIN VA1 (C) SEGA 1995
-837-11892-01 PAL 171-7069B MAIN (C) SEGA 1995
-837-12126 IC BD SATURN MAIN VA SG 171-7128B PC BD SATURN MAIN VA SG (C) SEGA 1995
-837-12126 IC BD SATURN MAIN VA SG 171-7128C PC BD SATURN MAIN VA SG (C) SEGA 1995
-837-12133 IC BD SATURN MAIN VA SD 171-7130C PC BD SATURN MAIN VA SD (C) SEGA 1995
-837-12134 IC BD SATURN MAIN VA USA SD 171-7130C PC BD SATURN MAIN VA USA SD (C) SEGA 1995
-837-12135 IC BD SATURN MAIN VA PAL SD 171-7131A PC BD SATURN MAIN VA PAL SD (C) SEGA 1995
-837-12459 IC BD SATURN MAIN VA6 JPN SG 171-7207A PC BD SATURN MAIN VA6 SG (C) SEGA 1996
-837-12468 IC BD SATURN MAIN VA8 JPN OCU 171-7209C PC BD SATURN MAIN VA8 OCU (C) SEGA 1996
-837-12643 IC BD SATURN MAIN VA7 USA SD 171-7208C PC BD SATURN MAIN VA7 USA SD (C) SEGA 1996
-(none) 171-7291B PC BD SATURN MAIN VA9 PAL (C) SEGA 1996
-(none) 171-7291C PC BD SATURN MAIN VA9 (C) SEGA 1996
-837-12650 IC BD SATURN MAIN VA13 JPN 171-7???? PC BD SATURN MAIN VA13 (C) SEGA 1996
-837-12845 IC BD SATURN MAIN VA13 USA 171-7???? PC BD SATURN MAIN VA13 (C) SEGA 1996
-837-12992 IC BD SATURN MAIN VA7 PAL 171-7424A PC BD SATURN MAIN VA7 PAL (C) SEGA 1996
-837-13100 IC BD SATURN MAIN VA13 PAL 171-7455D PC BD SATURN MAIN VA13 PAL (C) SEGA 1997
-837-13137 IC BD SATURN MAIN VA15 JPN 171-7462B PC BD SATURN MAIN VA15 (C) SEGA 1997
-
-
-Motherboard Variations Summary
-------------------------------
-
-NTSC
-----
-- VA0: First revision. CD Block (YGR019A & HD6437097) is on a daughterboard. Power supply mounted on top casing.
- Has 40 pin DIP EPROM or mask ROM for BIOS. Larger board with control ports on the main board. Uses JVC CD drive units ENR-007B/ENR-007D.
-- VA1: marked as 'VA' on the main board. Power supply is now bottom mounted and plugs in on top into 5 pins on the main board. Most sub boards
- integrated into the main board except the controller ports which are on a small sub board. BIOS is SOP40 mask ROM located on the bottom side of
- the main board. Battery-backup RAM and the VRAM are also on the bottom side of the main board. Uses ENR-007D CD drive units.
-- VA2 & VA3: Mostly same as VA1. VA2 is marked as 'VA SG' (uses SGRAM), and VA3 is marked as VA SD (uses SDRAM). Uses ENR-011A CD drive units.
-- VA4 & VA5: Same as VA2 and VA3 but in a cheaper model 2 case. Uses ENR-011A CD drive units.
-- VA6: One single PCB for everything. Uses an off-the-shelf PLL chip (CY2292). Some custom chips have been revised and have different 315-xxxx numbers.
- BIOS and battery-backed RAM moved to the top side of the main board. Power supply has 4 pins and generates only +5VDC. Uses ENR-013A CD drive unit
- or Sanyo 610-6185-30 CD drive unit.
-- VA6 & VA7 has the CD Block reduced to a single IC (YGR022). Some custom chips have been revised and have different 315-xxxx numbers.
-- VA8 & VA9 still has the CD Block ICs separated. VA9 uses the old type PLL chip (315-5746).
-- VA10 to VA15: uses HQA-001A CD drive unit or Sanyo 610-6294-30 / 610-6473-30 CD drive unit. 68000 & YMF292 integrated into a single IC (315-5965).
- The integrated sound IC has a bug with certain 68000 commands.
-- VA11 has a small daughter board mounted on the main board to fix a design fault (possibly to fix the above sound IC problem?)
-- VA11+ boards use a smaller TSSOP20 audio DAC, VA10 uses the old one.
-- VA12, VA14 and VA16 might not exist.
-- VA13 fixes the design fault on VA11 so the patch board is no longer needed.
-- VA15 integrates the two SH-2 main CPUs into a larger single IC (HD6417098 / 315-6018).
-
-PAL (only the main differences to the above are listed)
----
-- No PAL board ever used SGRAM.
-- All PAL boards have an odd VA-number.
-- All PAL boards have a 5 pin power connector and use a 5 pin power supply.
-- All PAL boards use different region & video output jumpers when compared to NTSC machines.
-- All PAL boards use a 17.7344MHz master clock (NTSC units use 14.31818MHz).
-- All PAL boards replace the composite sync output on the A/V OUT connector with 9VDC which is used for SCART auto switching. The 9VDC power comes from
- pin 5 of the power supplies with a 5 pin connector. Composite sync is still there at TP4 on the bottom of the board but not wired into the A/V OUT port.
-- VA0 PAL - has extra jumpers to set the master clock divider (JP18 & 19), functional but unpopulated 50/60Hz switch on the back (SW4).
-- VA1 PAL - unpopulated 50/60Hz switch on the back (SW4). There is a design fault as it is still connected to the master clock divider select pin.
- Therefore the switch does not work on its own, you have to cut or raise & ground the PLL pin 1 for the switch to work.
-- VA3 PAL - has extra jumpers to set the master clock divider (JP20 & 21), functional but unpopulated 50/60Hz switch on the back (SW4).
-- VA5 PAL - same as VA3 PAL.
-- VA7 PAL - Unlike NTSC boards, this still uses the old PLL (315-5746) and pin 1 is connected to the PAL/NTSC and 50/60Hz selection pins on the video
- encoder and the VDP2.
-- VA9 - same as VA7 PAL.
-- VA13 PAL - Other than a 5 pin power connector it's identical to the NTSC VA13 board.
-- VA17 PAL - probably the final revision specifically for EU/PAL regions. Differences are unknown.
-
-Power supplies
---------------
-Type A is used on VA0 main boards and is mounted to the top casing. Pinout is GND, GND, 3.3V, 5V, (empty pin), 9V. (5 pins total)
-Type B is used on VA1 to VA5 main boards and is bottom mounted. Pinout is GND, GND, 3.3V, 5V, 9V. (5 pins total)
-Type C is used on VA6+ main boards and is bottom mounted. Pinout is GND, GND, 5V, 5V (4 pins total).
-PAL units use either Type B or a 5-pin version of Type C power supplies. On earlier boards such as 'VA' the 9V pin is connected to pin 1 of the CD ROM
-unit power supply cable connector on the main board. On later boards it's also connected to the A/V OUT port for SCART auto switching.
-
-CD Drives
----------
-With 20 pin flat cable connector, VA0-VA1:
-- JVC ENR-007B EMW10447-003E
-- JVC ENR-007B EMW10447-004E
-- JVC ENR-007D EMW10447-005E
-- JVC ENR-007D EMW10447-006E
-- Hitachi JA00292
-
-With 21 pin flat cable connector, VA2-VA5:
-- JVC ENR-011A EMW10589-002
-- JVC ENR-011A EMW10589-003
-
-With 21 pin flat cable connector, VA6-VA9:
-- JVC ENR-013A EMW20035-002 610-6185-20
-- Sanyo 610-6185-30 (sometimes with an extra protection board where the flat cable plugs in)
-
-With 21 pin flat cable connector, VA10-VA15:
-- JVC HQA-001A HQ100002-002 610-6294-20
-- Sanyo 610-6294-30 \
-- Sanyo 610-6473-30 / (sometimes with an extra protection board where the flat cable plugs in)
-These are the same as the VA6-VA9 units but lack an oscillator and have a white border on the edges of the PCB.
-
-Optical pickups used - JVC drive: Optima-6, Hitachi drive: HOP-6, Sanyo drive: SF-P101 is used in the 610-6185-30
-
-****************************************************************************************************
-
-Emulation Notes:
--To enter into an Advanced Test Mode,keep pressed the Test Button (F2) on the start-up.
--Memo: Some tests done on the original & working PCB,to be implemented:
- -The AD-Stick returns 0x00 or a similar value.
- -The Ports E,F & G must return 0xff
-
-TODO:
-(Main issues)
-- decap the SH-1, used for CD block (needed especially for Sega Saturn)
-- IRQs: some games have some issues with timing accurate IRQs, check/fix all of them.
-- The Cart-Dev mode hangs even with the -dev bios,I would like to see what it does on the real HW.
-- IC13 games on the dev bios doesn't even load the cartridge / crashes the emulation at start-up,
- rom rearrange needed?
-- SCU DSP still has its fair share of issues, it also needs to be converted to CPU structure;
-- Add the RS232c interface (serial port), needed by fhboxers (accesses some ports in the a-bus dummy range).
-- Video emulation is nowhere near perfection.
-- Reimplement the idle skip if possible.
-- Move SCU device into its respective file;
-
-test1f diagnostic hacks:
-"chash parge error" test 0x6035d04 <- 0x0009 (nop the button check)
-"chase line pearg" test 0x6036964 <- 0x0009 (nop the button check again)
-
-****************************************************************************************************/
-
-#include "emu.h"
-#include "includes/saturn.h"
-
-#include "cpu/m68000/m68000.h"
-#include "cpu/scudsp/scudsp.h"
-#include "cpu/sh/sh2.h"
-#include "machine/nvram.h"
-#include "machine/smpc.h"
-#include "machine/stvcd.h"
-#include "machine/saturn_cdb.h"
-#include "video/stvvdp1.h"
-#include "video/stvvdp2.h"
-
-#include "bus/saturn/bram.h"
-#include "bus/saturn/dram.h"
-#include "bus/saturn/rom.h"
-#include "bus/saturn/sat_slot.h"
-
-#include "bus/sat_ctrl/ctrl.h"
-
-#include "softlist.h"
-#include "speaker.h"
-
-
-
-class sat_console_state : public saturn_state
-{
-public:
- sat_console_state(const machine_config &mconfig, device_type type, const char *tag)
- : saturn_state(mconfig, type, tag)
- , m_exp(*this, "exp")
- , m_nvram(*this, "nvram")
- , m_stvcd(*this, "stvcd")
- , m_ctrl1(*this, "ctrl1")
- , m_ctrl2(*this, "ctrl2")
- { }
-
- void saturn(machine_config &config);
- void saturnjp(machine_config &config);
- void saturneu(machine_config &config);
- void saturnus(machine_config &config);
- void saturnkr(machine_config &config);
-
- template <bool is_pal> void init_saturn();
-
- DECLARE_INPUT_CHANGED_MEMBER(tray_open);
- DECLARE_INPUT_CHANGED_MEMBER(tray_close);
-
-private:
- DECLARE_MACHINE_START(saturn);
- DECLARE_MACHINE_RESET(saturn);
-
- // SMPC region codes, hardwired via jumper setting.
- // - Given the scheme bit 3 should determine if the region is PAL or NTSC.
- // - 0 and F are "prohibited", others are "Sega reserved".
- // - Documentation states that 2 is "TAIWAN" and 6 is "KOREA",
- // but games on latter definitely wants 2 rather than 6.
- // We currently swap, former actual slot needs to be confirmed.
- enum {
- REGION_NTSC_0 = 0,
- REGION_NTSC_JAPAN,
-// REGION_NTSC_TAIWAN,
- REGION_NTSC_KOREA,
- REGION_NTSC_3,
- REGION_NTSC_USA, // & Canada, Mexico
- REGION_NTSC_BRAZIL,
-// REGION_NTSC_KOREA,
- REGION_NTSC_TAIWAN, // & Philippines
- REGION_NTSC_7,
- REGION_PAL_8,
- REGION_PAL_9,
- REGION_PAL_ASIA, // China, Middle East, East Asia not covered above
- REGION_PAL_B,
- REGION_PAL_EUROPE, // Australia, South Africa
- REGION_PAL_AMERICA, // Non-NTSC Central/South America
- REGION_PAL_E,
- REGION_PAL_F
- };
-
- uint8_t saturn_cart_type_r();
- uint32_t abus_dummy_r(offs_t offset);
-
- uint32_t saturn_null_ram_r();
- void saturn_null_ram_w(uint32_t data);
-
- uint8_t saturn_pdr1_direct_r();
- uint8_t saturn_pdr2_direct_r();
- void saturn_pdr1_direct_w(uint8_t data);
- void saturn_pdr2_direct_w(uint8_t data);
- uint8_t m_direct_mux[2];
- uint8_t saturn_direct_port_read(bool which);
- uint8_t smpc_direct_mode(uint16_t in_value, bool which);
- uint8_t smpc_th_control_mode(uint16_t in_value, bool which);
-
- void nvram_init(nvram_device &nvram, void *data, size_t size);
-
- required_device<sat_cart_slot_device> m_exp;
- required_device<nvram_device> m_nvram;
- required_device<stvcd_device> m_stvcd;
-
- required_device<saturn_control_port_device> m_ctrl1;
- required_device<saturn_control_port_device> m_ctrl2;
-
- void saturn_mem(address_map &map);
- void sound_mem(address_map &map);
- void scsp_mem(address_map &map);
-};
-
-
-uint8_t sat_console_state::saturn_cart_type_r()
-{
- if (m_exp)
- return m_exp->get_cart_type();
- else
- return 0xff;
-}
-
-/* TODO: Bug! accesses this one, if returning 0 the SH-2 hard-crashes. Might be an actual bug with the CD block. */
-uint32_t sat_console_state::abus_dummy_r(offs_t offset)
-{
- logerror("A-Bus Dummy access %08x\n",offset*4);
- return -1;
-}
-
-void sat_console_state::saturn_mem(address_map &map)
-{
- map(0x00000000, 0x0007ffff).rom().mirror(0x20000000).region("bios", 0).nopw(); // bios
- map(0x00100000, 0x0010007f).rw(m_smpc_hle, FUNC(smpc_hle_device::read), FUNC(smpc_hle_device::write));
- map(0x00180000, 0x0018ffff).rw(FUNC(sat_console_state::saturn_backupram_r), FUNC(sat_console_state::saturn_backupram_w)).share("share1");
- map(0x00200000, 0x002fffff).ram().mirror(0x20100000).share("workram_l");
- map(0x01000000, 0x017fffff).w(FUNC(sat_console_state::saturn_minit_w));
- map(0x01800000, 0x01ffffff).w(FUNC(sat_console_state::saturn_sinit_w));
-// map(0x02000000, 0x023fffff).rom().mirror(0x20000000); // Cartridge area
-// map(0x02400000, 0x027fffff).ram(); // External Data RAM area
-// map(0x04000000, 0x047fffff).ram(); // External Battery RAM area
- map(0x04ffffff, 0x04ffffff).r(FUNC(sat_console_state::saturn_cart_type_r));
- map(0x05000000, 0x057fffff).r(FUNC(sat_console_state::abus_dummy_r));
- map(0x05800000, 0x0589ffff).rw(m_stvcd, FUNC(stvcd_device::stvcd_r), FUNC(stvcd_device::stvcd_w));
- /* Sound */
- map(0x05a00000, 0x05a7ffff).rw(FUNC(sat_console_state::saturn_soundram_r), FUNC(sat_console_state::saturn_soundram_w));
- map(0x05b00000, 0x05b00fff).rw(m_scsp, FUNC(scsp_device::read), FUNC(scsp_device::write));
- /* VDP1 */
- map(0x05c00000, 0x05c7ffff).rw(FUNC(sat_console_state::saturn_vdp1_vram_r), FUNC(sat_console_state::saturn_vdp1_vram_w));
- map(0x05c80000, 0x05cbffff).rw(FUNC(sat_console_state::saturn_vdp1_framebuffer0_r), FUNC(sat_console_state::saturn_vdp1_framebuffer0_w));
- map(0x05d00000, 0x05d0001f).rw(FUNC(sat_console_state::saturn_vdp1_regs_r), FUNC(sat_console_state::saturn_vdp1_regs_w));
- map(0x05e00000, 0x05e7ffff).mirror(0x80000).rw(FUNC(sat_console_state::saturn_vdp2_vram_r), FUNC(sat_console_state::saturn_vdp2_vram_w));
- map(0x05f00000, 0x05f7ffff).rw(FUNC(sat_console_state::saturn_vdp2_cram_r), FUNC(sat_console_state::saturn_vdp2_cram_w));
- map(0x05f80000, 0x05fbffff).rw(FUNC(sat_console_state::saturn_vdp2_regs_r), FUNC(sat_console_state::saturn_vdp2_regs_w));
- map(0x05fe0000, 0x05fe00cf).m(m_scu, FUNC(sega_scu_device::regs_map)); //rw(FUNC(sat_console_state::saturn_scu_r), FUNC(sat_console_state::saturn_scu_w));
- map(0x06000000, 0x060fffff).ram().mirror(0x21f00000).share("workram_h");
- map(0x40000000, 0x46ffffff).nopw(); // associative purge page
- map(0x60000000, 0x600003ff).nopw(); // cache address array
- map(0xc0000000, 0xc0000fff).ram(); // cache data array, Dragon Ball Z sprites relies on this
-}
-
-void sat_console_state::sound_mem(address_map &map)
-{
- map(0x000000, 0x0fffff).ram().share("sound_ram");
- map(0x100000, 0x100fff).rw(m_scsp, FUNC(scsp_device::read), FUNC(scsp_device::write));
-}
-
-void sat_console_state::scsp_mem(address_map &map)
-{
- map(0x000000, 0x0fffff).ram().share("sound_ram");
-}
-
-
-INPUT_CHANGED_MEMBER(sat_console_state::tray_open)
-{
- if(newval)
- m_stvcd->set_tray_open();
-}
-
-INPUT_CHANGED_MEMBER(sat_console_state::tray_close)
-{
- if(newval)
- m_stvcd->set_tray_close();
-}
-
-static INPUT_PORTS_START( saturn )
- PORT_START("RESET") /* hardwired buttons */
- PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_CHANGED_MEMBER("smpc", smpc_hle_device, trigger_nmi_r, 0) PORT_NAME("Reset Button")
- PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_CHANGED_MEMBER(DEVICE_SELF, sat_console_state, tray_open,0) PORT_NAME("Tray Open Button")
- PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_OTHER ) PORT_CHANGED_MEMBER(DEVICE_SELF, sat_console_state, tray_close,0) PORT_NAME("Tray Close")
-
- PORT_START("fake")
- PORT_CONFNAME(0x01,0x00,"Master-Slave Comms")
- PORT_CONFSETTING(0x00,"Normal (400 cycles)")
- PORT_CONFSETTING(0x01,"One Shot (Hack)")
-INPUT_PORTS_END
-
-
-/* TODO: if you change the driver configuration then NVRAM contents gets screwed, needs mods in MAME framework */
-void sat_console_state::nvram_init(nvram_device &nvram, void *data, size_t size)
-{
- static const uint8_t init[64] = {
- 'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
- 'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
- 'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't',
- 'B', 'a', 'c', 'k', 'U', 'p', 'R', 'a', 'm', ' ', 'F', 'o', 'r', 'm', 'a', 't', };
-
- memset(data, 0x00, size);
- memcpy(data, init, sizeof(init));
-}
-
-
-MACHINE_START_MEMBER(sat_console_state, saturn)
-{
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x02400000, 0x027fffff, read32smo_delegate(*this, FUNC(sat_console_state::saturn_null_ram_r)), write32smo_delegate(*this, FUNC(sat_console_state::saturn_null_ram_w)));
- m_slave->space(AS_PROGRAM).install_readwrite_handler(0x02400000, 0x027fffff, read32smo_delegate(*this, FUNC(sat_console_state::saturn_null_ram_r)), write32smo_delegate(*this, FUNC(sat_console_state::saturn_null_ram_w)));
-
- m_maincpu->space(AS_PROGRAM).nop_readwrite(0x04000000, 0x047fffff);
- m_slave->space(AS_PROGRAM).nop_readwrite(0x04000000, 0x047fffff);
-
- m_nvram->set_base(m_backupram.get(), 0x8000);
-
- if (m_exp)
- {
- switch (m_exp->get_cart_type())
- {
- case 0x21: // Battery RAM cart
- case 0x22:
- case 0x23:
- case 0x24:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x04000000, 0x047fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_bram)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x04000000, 0x047fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_bram)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x04000000, 0x047fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_bram)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x04000000, 0x047fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_bram)));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x24000000, 0x247fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_bram)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x24000000, 0x247fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_bram)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x24000000, 0x247fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_bram)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x24000000, 0x247fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_bram)));
- break;
- case 0x5a: // Data RAM cart
- case 0x5c:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x02400000, 0x025fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram0)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x02400000, 0x025fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram0)));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x02600000, 0x027fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram1)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x02600000, 0x027fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram1)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x02400000, 0x025fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram0)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x02400000, 0x025fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram0)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x02600000, 0x027fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram1)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x02600000, 0x027fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram1)));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x22400000, 0x225fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram0)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x22400000, 0x225fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram0)));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x22600000, 0x227fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram1)));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x22600000, 0x227fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram1)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x22400000, 0x225fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram0)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x22400000, 0x225fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram0)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x22600000, 0x227fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_ext_dram1)));
- m_slave->space(AS_PROGRAM).install_write_handler(0x22600000, 0x227fffff, write32s_delegate(*m_exp, FUNC(sat_cart_slot_device::write_ext_dram1)));
- break;
- case 0xff: // ROM cart + mirror
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x02000000, 0x023fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_rom)));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x22000000, 0x223fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_rom)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x02000000, 0x023fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_rom)));
- m_slave->space(AS_PROGRAM).install_read_handler(0x22000000, 0x223fffff, read32sm_delegate(*m_exp, FUNC(sat_cart_slot_device::read_rom)));
- break;
- }
- }
-
- // save states
-// save_pointer(NAME(m_scu_regs), 0x100/4);
- save_item(NAME(m_en_68k));
- save_item(NAME(m_scsp_last_line));
- save_item(NAME(m_vdp2.odd));
-
- // TODO: trampoline
- m_audiocpu->set_reset_callback(*this, FUNC(saturn_state::m68k_reset_callback));
-}
-
-/* Die Hard Trilogy tests RAM address 0x25e7ffe bit 2 with Slave during FRT minit irq, in-development tool for breaking execution of it? */
-uint32_t sat_console_state::saturn_null_ram_r()
-{
- return 0xffffffff;
-}
-
-void sat_console_state::saturn_null_ram_w(uint32_t data)
-{
-}
-
-MACHINE_RESET_MEMBER(sat_console_state,saturn)
-{
- m_scsp_last_line = 0;
-
- // don't let the slave cpu and the 68k go anywhere
- m_slave->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
- m_audiocpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
-
- m_en_68k = 0;
-
- //memset(stv_m_workram_l, 0, 0x100000);
- //memset(stv_m_workram_h, 0, 0x100000);
-
- m_maincpu->set_unscaled_clock(MASTER_CLOCK_320/2);
- m_slave->set_unscaled_clock(MASTER_CLOCK_320/2);
-
- m_vdp2.old_crmd = -1;
- m_vdp2.old_tvmd = -1;
-}
-
-uint8_t sat_console_state::saturn_pdr1_direct_r()
-{
- return saturn_direct_port_read(false);
-}
-
-uint8_t sat_console_state::saturn_pdr2_direct_r()
-{
- return saturn_direct_port_read(true);
-}
-
-void sat_console_state::saturn_pdr1_direct_w(uint8_t data)
-{
- m_direct_mux[0] = data;
-}
-
-void sat_console_state::saturn_pdr2_direct_w(uint8_t data)
-{
- m_direct_mux[1] = data;
-}
-
-inline uint8_t sat_console_state::saturn_direct_port_read(bool which)
-{
- // bail out if direct mode is disabled
- if(m_smpc_hle->get_iosel(which) == false)
- return 0xff;
-
- saturn_control_port_device *port = which == true ? m_ctrl2 : m_ctrl1;
- uint8_t cur_mode = m_smpc_hle->get_ddr(which);
- uint8_t res = 0;
- uint16_t ctrl_read = port->read_direct();
-
-// check for control method
- switch(cur_mode & 0x60)
- {
- case 0: break;
- case 0x40: res = smpc_th_control_mode(ctrl_read,which); break;
- case 0x60: res = smpc_direct_mode(ctrl_read,which); break;
- default:
- popmessage("SMPC: unemulated control method %02x, contact MAMEdev",cur_mode & 0x60);
- break;
- }
-
- return res;
-}
-
-uint8_t sat_console_state::smpc_th_control_mode(uint16_t in_value, bool which)
-{
- uint8_t res = 0;
- uint8_t th = (m_direct_mux[which] >> 5) & 3;
-
- switch (th)
- {
- /* TODO: 3D Lemmings bogusly enables TH Control mode, wants this to return the ID, needs HW tests. */
- case 3:
- res = th << 6;
- res |= 0x14;
- res |= (in_value & 8); // L
- break;
- case 2:
- res = th << 6;
- // 1 C B Right Left Down Up
- // WHP actually has a very specific code at 0x6015f30, doesn't like bits 0-1 active here ...
- res|= ((in_value >> 4) & 0x30); // C & B
- res|= ((in_value >> 12) & 0xc);
- break;
- case 1:
- res = th << 6;
- res |= 0x10;
- res |= ((in_value >> 4) & 0xf); // R, X, Y, Z
- break;
- case 0:
- res = th << 6;
- // 0 Start A 0 0 Down Up
- res |= ((in_value >> 6) & 0x30); // Start & A
- res |= ((in_value >> 12) & 0x03);
- // ... and it actually wants bits 2 - 3 active here.
- res |= 0xc;
- break;
- }
-
- return res;
-}
-
-uint8_t sat_console_state::smpc_direct_mode(uint16_t in_value,bool which)
-{
- uint8_t hshake = (m_direct_mux[which] >> 5) & 3;
- const int shift_bit[4] = { 4, 12, 8, 0 };
-
- return 0x80 | 0x10 | ((in_value >> shift_bit[hshake]) & 0xf);
-}
-
-void sat_console_state::saturn(machine_config &config)
-{
- /* basic machine hardware */
- SH2(config, m_maincpu, MASTER_CLOCK_352/2); // 28.6364 MHz
- m_maincpu->set_addrmap(AS_PROGRAM, &sat_console_state::saturn_mem);
- m_maincpu->set_is_slave(0);
- TIMER(config, "scantimer").configure_scanline(FUNC(sat_console_state::saturn_scanline), "screen", 0, 1);
-
- SH2(config, m_slave, MASTER_CLOCK_352/2); // 28.6364 MHz
- m_slave->set_addrmap(AS_PROGRAM, &sat_console_state::saturn_mem);
- m_slave->set_is_slave(1);
- TIMER(config, "slave_scantimer").configure_scanline(FUNC(sat_console_state::saturn_slave_scanline), "screen", 0, 1);
-
- M68000(config, m_audiocpu, 11289600); //256 x 44100 Hz = 11.2896 MHz
- m_audiocpu->set_addrmap(AS_PROGRAM, &sat_console_state::sound_mem);
-
- SEGA_SCU(config, m_scu, 0);
- m_scu->set_hostcpu(m_maincpu);
-
-// SH-1
-
-// SMPC MCU, running at 4 MHz (+ custom RTC device that runs at 32.768 KHz)
- SMPC_HLE(config, m_smpc_hle, XTAL(4'000'000));
- m_smpc_hle->set_screen_tag("screen");
- m_smpc_hle->set_control_port_tags("ctrl1", "ctrl2");
- m_smpc_hle->pdr1_in_handler().set(FUNC(sat_console_state::saturn_pdr1_direct_r));
- m_smpc_hle->pdr2_in_handler().set(FUNC(sat_console_state::saturn_pdr2_direct_r));
- m_smpc_hle->pdr1_out_handler().set(FUNC(sat_console_state::saturn_pdr1_direct_w));
- m_smpc_hle->pdr2_out_handler().set(FUNC(sat_console_state::saturn_pdr2_direct_w));
- m_smpc_hle->master_reset_handler().set(FUNC(saturn_state::master_sh2_reset_w));
- m_smpc_hle->master_nmi_handler().set(FUNC(saturn_state::master_sh2_nmi_w));
- m_smpc_hle->slave_reset_handler().set(FUNC(saturn_state::slave_sh2_reset_w));
- m_smpc_hle->sound_reset_handler().set(FUNC(saturn_state::sound_68k_reset_w));
- m_smpc_hle->system_reset_handler().set(FUNC(saturn_state::system_reset_w));
- m_smpc_hle->system_halt_handler().set(FUNC(saturn_state::system_halt_w));
- m_smpc_hle->dot_select_handler().set(FUNC(saturn_state::dot_select_w));
- m_smpc_hle->interrupt_handler().set(m_scu, FUNC(sega_scu_device::smpc_irq_w));
-
- MCFG_MACHINE_START_OVERRIDE(sat_console_state,saturn)
- MCFG_MACHINE_RESET_OVERRIDE(sat_console_state,saturn)
-
- NVRAM(config, "nvram").set_custom_handler(FUNC(sat_console_state::nvram_init));
-
- /* video hardware */
- SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
- m_screen->set_raw(MASTER_CLOCK_320/8, 427, 0, 320, 263, 0, 224);
- m_screen->set_screen_update(FUNC(sat_console_state::screen_update_stv_vdp2));
-
- PALETTE(config, m_palette).set_entries(2048+(2048*2)); //standard palette + extra memory for rgb brightness.
-
- GFXDECODE(config, m_gfxdecode, m_palette, gfx_stv);
-
- MCFG_VIDEO_START_OVERRIDE(sat_console_state,stv_vdp2)
-
- SPEAKER(config, "lspeaker").front_left();
- SPEAKER(config, "rspeaker").front_right();
-
- SCSP(config, m_scsp, 8467200*8/3); // 8.4672 MHz EXTCLK * 8 / 3 = 22.5792 MHz
- m_scsp->set_addrmap(0, &sat_console_state::scsp_mem);
- m_scsp->irq_cb().set(FUNC(saturn_state::scsp_irq));
- m_scsp->main_irq_cb().set(m_scu, FUNC(sega_scu_device::sound_req_w));
- m_scsp->add_route(0, "lspeaker", 1.0);
- m_scsp->add_route(1, "rspeaker", 1.0);
-
- stvcd_device &stvcd(STVCD(config, "stvcd", 0));
- stvcd.add_route(0, "scsp", 1.0, 0);
- stvcd.add_route(1, "scsp", 1.0, 1);
-
- SATURN_CONTROL_PORT(config, "ctrl1", saturn_controls, "joypad");
- SATURN_CONTROL_PORT(config, "ctrl2", saturn_controls, "joypad");
-}
-
-static void saturn_cart(device_slot_interface &device)
-{
- device.option_add_internal("rom", SATURN_ROM);
- device.option_add_internal("ram8", SATURN_DRAM_8MB);
- device.option_add_internal("ram32", SATURN_DRAM_32MB);
- device.option_add_internal("bram4", SATURN_BRAM_4MB);
- device.option_add_internal("bram8", SATURN_BRAM_8MB);
- device.option_add_internal("bram16", SATURN_BRAM_16MB);
- device.option_add_internal("bram32", SATURN_BRAM_32MB);
-}
-
-
-void sat_console_state::saturnus(machine_config &config)
-{
- saturn(config);
- SATURN_CDB(config, "saturn_cdb", 16000000);
-
- SOFTWARE_LIST(config, "cd_list").set_original("saturn").set_filter("NTSC-U");
-
- SATURN_CART_SLOT(config, "exp", saturn_cart, nullptr);
- SOFTWARE_LIST(config, "cart_list").set_original("sat_cart");
-
- m_smpc_hle->set_region_code(REGION_NTSC_USA);
-}
-
-void sat_console_state::saturneu(machine_config &config)
-{
- saturn(config);
- SATURN_CDB(config, "saturn_cdb", 16000000);
-
- SOFTWARE_LIST(config, "cd_list").set_original("saturn").set_filter("PAL");
-
- SATURN_CART_SLOT(config, "exp", saturn_cart, nullptr);
- SOFTWARE_LIST(config, "cart_list").set_original("sat_cart");
-
- m_smpc_hle->set_region_code(REGION_PAL_EUROPE);
-}
-
-void sat_console_state::saturnjp(machine_config &config)
-{
- saturn(config);
- SATURN_CDB(config, "saturn_cdb", 16000000);
-
- SOFTWARE_LIST(config, "cd_list").set_original("saturn").set_filter("NTSC-J");
-
- SATURN_CART_SLOT(config, "exp", saturn_cart, nullptr);
- SOFTWARE_LIST(config, "cart_list").set_original("sat_cart");
-
- m_smpc_hle->set_region_code(REGION_NTSC_JAPAN);
-}
-
-void sat_console_state::saturnkr(machine_config &config)
-{
- saturn(config);
- SATURN_CDB(config, "saturn_cdb", 16000000);
-
- SOFTWARE_LIST(config, "cd_list").set_original("saturn").set_filter("NTSC-K");
-
- SATURN_CART_SLOT(config, "exp", saturn_cart, nullptr);
- SOFTWARE_LIST(config, "cart_list").set_original("sat_cart");
-
- m_smpc_hle->set_region_code(REGION_NTSC_KOREA);
-}
-
-
-template <bool is_pal> void sat_console_state::init_saturn()
-{
- // TODO: setter for (missing) VDP2 device
- m_vdp2.pal = is_pal;
-
- // set compatible options
- m_maincpu->sh2drc_set_options(SH2DRC_STRICT_VERIFY|SH2DRC_STRICT_PCREL);
- m_slave->sh2drc_set_options(SH2DRC_STRICT_VERIFY|SH2DRC_STRICT_PCREL);
-
- m_maincpu->sh2drc_add_fastram(0x00000000, 0x0007ffff, 1, &m_rom[0]);
- m_maincpu->sh2drc_add_fastram(0x00200000, 0x002fffff, 0, &m_workram_l[0]);
- m_maincpu->sh2drc_add_fastram(0x06000000, 0x060fffff, 0, &m_workram_h[0]);
- m_slave->sh2drc_add_fastram(0x00000000, 0x0007ffff, 1, &m_rom[0]);
- m_slave->sh2drc_add_fastram(0x00200000, 0x002fffff, 0, &m_workram_l[0]);
- m_slave->sh2drc_add_fastram(0x06000000, 0x060fffff, 0, &m_workram_h[0]);
-
- /* amount of time to boost interleave for on MINIT / SINIT, needed for communication to work */
- m_minit_boost = 400;
- m_sinit_boost = 400;
- m_minit_boost_timeslice = attotime::zero;
- m_sinit_boost_timeslice = attotime::zero;
-
-// m_scu_regs = make_unique_clear<uint32_t[]>(0x100/4);
- m_backupram = make_unique_clear<uint8_t[]>(0x8000);
-}
-
-ROM_START( saturnjp )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS(0, "101", "Japan v1.01 (941228)")
- ROMX_LOAD("sega_101.bin", 0x00000000, 0x00080000, CRC(224b752c) SHA1(df94c5b4d47eb3cc404d88b33a8fda237eaf4720), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "1003", "Japan v1.003 (941012)")
- ROMX_LOAD("sega1003.bin", 0x00000000, 0x00080000, CRC(b3c63c25) SHA1(7b23b53d62de0f29a23e423d0fe751dfb469c2fa), ROM_BIOS(1))
- ROM_SYSTEM_BIOS(2, "100", "Japan v1.00 (940921)")
- ROMX_LOAD("sega_100.bin", 0x00000000, 0x00080000, CRC(2aba43c2) SHA1(2b8cb4f87580683eb4d760e4ed210813d667f0a2), ROM_BIOS(2))
-ROM_END
-
-ROM_START( saturn )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS(0, "101a", "Overseas v1.01a (941115)")
- /* Confirmed by ElBarto */
- ROMX_LOAD("mpr-17933.bin", 0x00000000, 0x00080000, CRC(4afcf0fa) SHA1(faa8ea183a6d7bbe5d4e03bb1332519800d3fbc3), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "100a", "Overseas v1.00a (941115)")
- ROMX_LOAD("sega_100a.bin", 0x00000000, 0x00080000, CRC(f90f0089) SHA1(3bb41feb82838ab9a35601ac666de5aacfd17a58), ROM_BIOS(1))
-ROM_END
-
-ROM_START( saturneu )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS(0, "101a", "Overseas v1.01a (941115)")
- /* Confirmed by ElBarto */
- ROMX_LOAD("mpr-17933.bin", 0x00000000, 0x00080000, CRC(4afcf0fa) SHA1(faa8ea183a6d7bbe5d4e03bb1332519800d3fbc3), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "100a", "Overseas v1.00a (941115)")
- ROMX_LOAD("sega_100a.bin", 0x00000000, 0x00080000, CRC(f90f0089) SHA1(3bb41feb82838ab9a35601ac666de5aacfd17a58), ROM_BIOS(1))
-ROM_END
-
-ROM_START( saturnkr )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- // undumped, uses Japanese VA1 motherboard with v1.02a BIOS rev,
- // with extra checks for region jumpers that disables Japanese language if setting matches '2' (no Korea option tho)
- ROM_LOAD("sega_101.bin", 0x00000000, 0x00080000, BAD_DUMP CRC(224b752c) SHA1(df94c5b4d47eb3cc404d88b33a8fda237eaf4720) )
-ROM_END
-
-ROM_START( vsaturn )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- ROM_LOAD("vsaturn.bin", 0x00000000, 0x00080000, CRC(e4d61811) SHA1(4154e11959f3d5639b11d7902b3a393a99fb5776))
-ROM_END
-
-ROM_START( hisaturn )
- ROM_REGION32_BE( 0x80000, "bios", ROMREGION_ERASEFF )
- ROM_SYSTEM_BIOS(0, "102", "v1.02 (950519)")
- ROMX_LOAD("mpr-18100.bin", 0x000000, 0x080000, CRC(3408dbf4) SHA1(8a22710e09ce75f39625894366cafe503ed1942d), ROM_BIOS(0))
- ROM_SYSTEM_BIOS(1, "101", "v1.01 (950130)")
- ROMX_LOAD("hisaturn.bin", 0x00000000, 0x00080000, CRC(721e1b60) SHA1(49d8493008fa715ca0c94d99817a5439d6f2c796), ROM_BIOS(1))
-ROM_END
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
-CONS( 1994, saturn, 0, 0, saturnus, saturn, sat_console_state, init_saturn<false>, "Sega", "Saturn (USA)", MACHINE_NOT_WORKING )
-CONS( 1994, saturnjp, saturn, 0, saturnjp, saturn, sat_console_state, init_saturn<false>, "Sega", "Saturn (Japan)", MACHINE_NOT_WORKING )
-CONS( 1994, saturneu, saturn, 0, saturneu, saturn, sat_console_state, init_saturn<true>, "Sega", "Saturn (PAL)", MACHINE_NOT_WORKING )
-CONS( 1995, saturnkr, saturn, 0, saturnkr, saturn, sat_console_state, init_saturn<false>, "Samsung", "Saturn (Korea)", MACHINE_NOT_WORKING )
-CONS( 1995, vsaturn, saturn, 0, saturnjp, saturn, sat_console_state, init_saturn<false>, "JVC", "V-Saturn", MACHINE_NOT_WORKING )
-CONS( 1995, hisaturn, saturn, 0, saturnjp, saturn, sat_console_state, init_saturn<false>, "Hitachi", "HiSaturn", MACHINE_NOT_WORKING )