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angelosa 2017-08-16 22:23:01 +02:00
parent 4652f70fd1
commit c3b704b035
1 changed files with 7 additions and 0 deletions
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7
src/mame/machine/saturn_cdb.cpp
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@ -7,6 +7,8 @@ YGR019B - Hitachi YGR019B CD-Subsystem LSI. Earlier revision is YGR019A. Later r
into one IC (YGR022 315-5962). The SH1 and the YGR019B make up the 'CD Block' CD Authentication and CD I/O data controller. 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 Another of it's functions is to prevent copied CDs from being played
Attempts to use SCI, tight loops checking bit 2 of 0x5ffffc2 (TEIE)
*/ */
#include "emu.h" #include "emu.h"
@ -25,6 +27,11 @@ void saturn_cdb_device::device_start()
static ADDRESS_MAP_START( saturn_cdb_map, AS_PROGRAM, 32, saturn_cdb_device ) static ADDRESS_MAP_START( saturn_cdb_map, AS_PROGRAM, 32, saturn_cdb_device )
AM_RANGE(0x00000000, 0x0000ffff) AM_ROM AM_RANGE(0x00000000, 0x0000ffff) AM_ROM
AM_RANGE(0x01000000, 0x010fffff) AM_RAM // RAM buffer area?
AM_RANGE(0x02000000, 0x0200003f) AM_RAM // i/f with SH-2s
AM_RANGE(0x02100000, 0x0210003f) AM_RAM // i/f with SH-2s
AM_RANGE(0x02180000, 0x0218003f) AM_RAM // i/f with SH-2s
AM_RANGE(0x07000000, 0x07000fff) AM_RAM // unknown, internal RAM?
ADDRESS_MAP_END ADDRESS_MAP_END
MACHINE_CONFIG_MEMBER( saturn_cdb_device::device_add_mconfig ) MACHINE_CONFIG_MEMBER( saturn_cdb_device::device_add_mconfig )