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ohmygod.cpp: oki memory map instead of memcpy (nw)

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This commit is contained in:
Ivan Vangelista 2016-07-22 07:27:49 +02:00
parent e2774ba254
commit c07ea6ab99
1 changed files with 12 additions and 15 deletions
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27
src/mame/drivers/ohmygod.cpp
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@ -24,13 +24,11 @@ WRITE16_MEMBER(ohmygod_state::ohmygod_ctrl_w)
{
if (ACCESSING_BITS_0_7)
{
UINT8 *rom = memregion("oki")->base();
/* ADPCM bank switch */
if (m_sndbank != ((data >> m_adpcm_bank_shift) & 0x0f))
{
m_sndbank = (data >> m_adpcm_bank_shift) & 0x0f;
memcpy(rom + 0x20000, rom + 0x40000 + 0x20000 * m_sndbank, 0x20000);
membank("okibank")->set_entry(m_sndbank);
}
}
if (ACCESSING_BITS_8_15)
@ -61,6 +59,10 @@ static ADDRESS_MAP_START( ohmygod_map, AS_PROGRAM, 16, ohmygod_state )
AM_RANGE(0xd00000, 0xd00001) AM_WRITE(ohmygod_spritebank_w)
ADDRESS_MAP_END
static ADDRESS_MAP_START( oki_map, AS_0, 8, ohmygod_state )
AM_RANGE(0x00000, 0x1ffff) AM_ROM
AM_RANGE(0x20000, 0x3ffff) AM_ROMBANK("okibank")
ADDRESS_MAP_END
static INPUT_PORTS_START( ohmygod )
PORT_START("P1")
@ -297,6 +299,8 @@ GFXDECODE_END
void ohmygod_state::machine_start()
{
membank("okibank")->configure_entries(0, 16, memregion("oki")->base(), 0x20000);
save_item(NAME(m_spritebank));
save_item(NAME(m_scrollx));
save_item(NAME(m_scrolly));
@ -305,11 +309,7 @@ void ohmygod_state::machine_start()
void ohmygod_state::machine_reset()
{
UINT8 *rom = memregion("oki")->base();
m_sndbank = 0;
memcpy(rom + 0x20000, rom + 0x40000 + 0x20000 * m_sndbank, 0x20000);
m_spritebank = 0;
m_scrollx = 0;
m_scrolly = 0;
@ -344,6 +344,7 @@ static MACHINE_CONFIG_START( ohmygod, ohmygod_state )
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_OKIM6295_ADD("oki", 14000000/8, OKIM6295_PIN7_HIGH)
MCFG_DEVICE_ADDRESS_MAP(AS_0, oki_map)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
@ -364,10 +365,8 @@ ROM_START( ohmygod )
ROM_REGION( 0x80000, "gfx2", 0 )
ROM_LOAD( "omg-s.120", 0x00000, 0x80000, CRC(6413bd36) SHA1(52c455d727496eae80bfab9460127c4c5a874e32) )
ROM_REGION( 0x240000, "oki", 0 )
ROM_LOAD( "omg-g.107", 0x00000, 0x200000, CRC(7405573c) SHA1(f4e7318c0a58f43d3c6370490637aea53b28547e) )
/* 00000-1ffff is fixed, 20000-3ffff is banked */
ROM_RELOAD( 0x40000, 0x200000 )
ROM_REGION( 0x200000, "oki", 0 )
ROM_LOAD( "omg-g.107", 0x00000, 0x200000, CRC(7405573c) SHA1(f4e7318c0a58f43d3c6370490637aea53b28547e) ) /* 00000-1ffff is fixed, 20000-3ffff is banked */
ROM_END
ROM_START( naname )
@ -380,10 +379,8 @@ ROM_START( naname )
ROM_REGION( 0x80000, "gfx2", 0 )
ROM_LOAD( "036-spr.120", 0x00000, 0x80000, CRC(e36d8731) SHA1(652709d7884d40459c95761c8abcb394c4b712bf) )
ROM_REGION( 0x240000, "oki", 0 )
ROM_LOAD( "036-snd.107", 0x00000, 0x200000, CRC(a3e0caf4) SHA1(35b0eb4ae5b9df1b7c99ec2476a6d834ea50d2e3) )
/* 00000-1ffff is fixed, 20000-3ffff is banked */
ROM_RELOAD( 0x40000, 0x200000 )
ROM_REGION( 0x200000, "oki", 0 )
ROM_LOAD( "036-snd.107", 0x00000, 0x200000, CRC(a3e0caf4) SHA1(35b0eb4ae5b9df1b7c99ec2476a6d834ea50d2e3) ) /* 00000-1ffff is fixed, 20000-3ffff is banked */
ROM_END