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add basic device for saturn_cdb to load the roms.

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This commit is contained in:
David Haywood 2017-08-16 13:51:39 +01:00
parent 27ab07f416
commit b386f441cf
5 changed files with 88 additions and 0 deletions
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2
scripts/target/mame/arcade.lua
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@ -3284,6 +3284,8 @@ files {
MAME_DIR .. "src/mame/includes/saturn.h",
MAME_DIR .. "src/mame/drivers/saturn.cpp",
MAME_DIR .. "src/mame/machine/saturn.cpp",
MAME_DIR .. "src/mame/machine/saturn_cdb.cpp",
MAME_DIR .. "src/mame/machine/saturn_cdb.h",
MAME_DIR .. "src/mame/includes/stv.h",
MAME_DIR .. "src/mame/machine/stvprot.cpp",
MAME_DIR .. "src/mame/machine/stvprot.h",

2
scripts/target/mame/mess.lua
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@ -1286,6 +1286,8 @@ files {
MAME_DIR .. "src/mame/includes/saturn.h",
MAME_DIR .. "src/mame/drivers/saturn.cpp",
MAME_DIR .. "src/mame/machine/saturn.cpp",
MAME_DIR .. "src/mame/machine/saturn_cdb.cpp",
MAME_DIR .. "src/mame/machine/saturn_cdb.h",
}
end
--------------------------------------------------

7
src/mame/drivers/saturn.cpp
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@ -433,6 +433,7 @@ test1f diagnostic hacks:
#include "machine/nvram.h"
#include "machine/smpc.h"
#include "machine/stvcd.h"
#include "machine/saturn_cdb.h"
#include "sound/cdda.h"
#include "sound/scsp.h"
#include "video/stvvdp1.h"
@ -865,6 +866,8 @@ SLOT_INTERFACE_END
MACHINE_CONFIG_DERIVED( saturnus, saturn )
MCFG_CDROM_ADD( "cdrom" )
MCFG_CDROM_INTERFACE("sat_cdrom")
MCFG_DEVICE_ADD("saturn_cdb", SATURN_CDB, 16000000)
MCFG_SOFTWARE_LIST_ADD("cd_list","saturn")
MCFG_SOFTWARE_LIST_FILTER("cd_list","NTSC-U")
@ -876,6 +879,8 @@ MACHINE_CONFIG_END
MACHINE_CONFIG_DERIVED( saturneu, saturn )
MCFG_CDROM_ADD( "cdrom" )
MCFG_CDROM_INTERFACE("sat_cdrom")
MCFG_DEVICE_ADD("saturn_cdb", SATURN_CDB, 16000000)
MCFG_SOFTWARE_LIST_ADD("cd_list","saturn")
MCFG_SOFTWARE_LIST_FILTER("cd_list","PAL")
@ -887,6 +892,8 @@ MACHINE_CONFIG_END
MACHINE_CONFIG_DERIVED( saturnjp, saturn )
MCFG_CDROM_ADD( "cdrom" )
MCFG_CDROM_INTERFACE("sat_cdrom")
MCFG_DEVICE_ADD("saturn_cdb", SATURN_CDB, 16000000)
MCFG_SOFTWARE_LIST_ADD("cd_list","saturn")
MCFG_SOFTWARE_LIST_FILTER("cd_list","NTSC-J")

49
src/mame/machine/saturn_cdb.cpp Normal file
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@ -0,0 +1,49 @@
// license:BSD-3-Clause
// copyright-holders:David Haywood
/* Notes
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
*/
#include "emu.h"
#include "machine/saturn_cdb.h"
DEFINE_DEVICE_TYPE(SATURN_CDB, saturn_cdb_device, "satcdb", "Saturn CDB (CD Block)")
saturn_cdb_device::saturn_cdb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, SATURN_CDB, tag, owner, clock)
{
}
void saturn_cdb_device::device_start()
{
}
static ADDRESS_MAP_START( saturn_cdb_map, AS_PROGRAM, 32, saturn_cdb_device )
AM_RANGE(0x00000000, 0x0000ffff) AM_ROM
ADDRESS_MAP_END
MACHINE_CONFIG_MEMBER( saturn_cdb_device::device_add_mconfig )
MCFG_CPU_ADD("cdbcpu", SH1, DERIVED_CLOCK(1, 1))
MCFG_CPU_PROGRAM_MAP(saturn_cdb_map)
MCFG_DEVICE_DISABLE() // we're not actually using the CD Block ROM for now
MACHINE_CONFIG_END
ROM_START( satcdb )
ROM_REGION( 0x10000, "cdbcpu", 0 )
ROM_SYSTEM_BIOS( 0, "cdb106", "Saturn CD Block 1.06" )
ROMX_LOAD( "cdb106.bin", 0x00000, 0x10000, CRC(3681d3b0) SHA1(b3c20fbe57cd2eb595e9edac86817e5948dccae4), ROM_BIOS(1) ) // for YGR019B?
ROM_SYSTEM_BIOS( 1, "cdb105", "Saturn CD Block 1.05" )
ROMX_LOAD( "cdb105.bin", 0x00000, 0x10000, CRC(2a2ced5c) SHA1(eb8393058f324e922c11b43709b64fc6ca94ab86), ROM_BIOS(2) ) // for YGR019A?
ROM_SYSTEM_BIOS( 2, "cdb105", "Saturn CD Block (YGR022 315-5962)" )
ROMX_LOAD( "ygr022.bin", 0x00000, 0x10000, CRC(1c8b9f38) SHA1(f4f6c2aac68c352814d396ae41f81f54ad228e68), ROM_BIOS(3) ) // combined package?
ROM_END
const tiny_rom_entry *saturn_cdb_device::device_rom_region() const
{
return ROM_NAME(satcdb);
}

28
src/mame/machine/saturn_cdb.h Normal file
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@ -0,0 +1,28 @@
// license:BSD-3-Clause
// copyright-holders:David Haywood
#ifndef MAME_MACHINE_SATURN_CDB_H
#define MAME_MACHINE_SATURN_CDB_H
#pragma once
#include "cpu/sh2/sh2.h"
DECLARE_DEVICE_TYPE(SATURN_CDB, saturn_cdb_device)
class saturn_cdb_device : public device_t
{
public:
// construction/destruction
saturn_cdb_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
virtual void device_start() override;
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
private:
};
#endif // MAME_MACHINE_SATURN_CDB_H