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crshrace: Soundlatch modernization (nw)

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This commit is contained in:
AJR 2017-06-14 11:31:18 -04:00
parent 774032e48b
commit 81d192fee6
2 changed files with 5 additions and 28 deletions
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27
src/mame/drivers/crshrace.cpp
View File

@ -145,23 +145,6 @@ WRITE8_MEMBER(crshrace_state::crshrace_sh_bankswitch_w)
m_z80bank->set_entry(data & 0x03);
}
WRITE8_MEMBER(crshrace_state::sound_command_w)
{
m_pending_command = 1;
m_soundlatch->write(space, offset, data & 0xff);
m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
}
CUSTOM_INPUT_MEMBER(crshrace_state::country_sndpending_r)
{
return m_pending_command;
}
WRITE8_MEMBER(crshrace_state::pending_command_clear_w)
{
m_pending_command = 0;
}
static ADDRESS_MAP_START( crshrace_map, AS_PROGRAM, 16, crshrace_state )
AM_RANGE(0x000000, 0x07ffff) AM_ROM
@ -178,7 +161,7 @@ static ADDRESS_MAP_START( crshrace_map, AS_PROGRAM, 16, crshrace_state )
AM_RANGE(0xfff002, 0xfff003) AM_READ_PORT("P2")
AM_RANGE(0xfff004, 0xfff005) AM_READ_PORT("DSW0")
AM_RANGE(0xfff006, 0xfff007) AM_READ_PORT("DSW2")
AM_RANGE(0xfff008, 0xfff009) AM_WRITE8(sound_command_w, 0x00ff)
AM_RANGE(0xfff008, 0xfff009) AM_DEVWRITE8("soundlatch", generic_latch_8_device, write, 0x00ff)
AM_RANGE(0xfff00a, 0xfff00b) AM_READ_PORT("DSW1")
AM_RANGE(0xfff00e, 0xfff00f) AM_READ_PORT("P3")
AM_RANGE(0xfff020, 0xfff03f) AM_DEVWRITE("k053936", k053936_device, ctrl_w)
@ -194,7 +177,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( sound_io_map, AS_IO, 8, crshrace_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_WRITE(crshrace_sh_bankswitch_w)
AM_RANGE(0x04, 0x04) AM_DEVREAD("soundlatch", generic_latch_8_device, read) AM_WRITE(pending_command_clear_w)
AM_RANGE(0x04, 0x04) AM_DEVREADWRITE("soundlatch", generic_latch_8_device, read, acknowledge_w)
AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("ymsnd", ym2610_device, read, write)
ADDRESS_MAP_END
@ -343,7 +326,7 @@ static INPUT_PORTS_START( crshrace )
PORT_DIPSETTING( 0x0e00, "5" )
PORT_DIPSETTING( 0x0f00, "5" )
*/
PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, crshrace_state,country_sndpending_r, nullptr) /* pending sound command */
PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_READ_LINE_DEVICE_MEMBER("soundlatch", generic_latch_8_device, pending_r) /* pending sound command */
INPUT_PORTS_END
/* Same as 'crshrace', but additional "unknown" Dip Switch (see notes) */
@ -407,7 +390,6 @@ void crshrace_state::machine_start()
save_item(NAME(m_roz_bank));
save_item(NAME(m_gfxctrl));
save_item(NAME(m_flipscreen));
save_item(NAME(m_pending_command));
}
void crshrace_state::machine_reset()
@ -415,7 +397,6 @@ void crshrace_state::machine_reset()
m_roz_bank = 0;
m_gfxctrl = 0;
m_flipscreen = 0;
m_pending_command = 0;
}
static MACHINE_CONFIG_START( crshrace )
@ -460,6 +441,8 @@ static MACHINE_CONFIG_START( crshrace )
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_GENERIC_LATCH_8_ADD("soundlatch")
MCFG_GENERIC_LATCH_DATA_PENDING_CB(INPUTLINE("audiocpu", INPUT_LINE_NMI))
MCFG_GENERIC_LATCH_SEPARATE_ACKNOWLEDGE(true)
MCFG_SOUND_ADD("ymsnd", YM2610, 8000000)
MCFG_YM2610_IRQ_HANDLER(INPUTLINE("audiocpu", 0))

6
src/mame/includes/crshrace.h
View File

@ -49,18 +49,12 @@ public:
int m_flipscreen;
uint32_t crshrace_tile_callback( uint32_t code );
/* misc */
int m_pending_command;
/* devices */
DECLARE_WRITE8_MEMBER(crshrace_sh_bankswitch_w);
DECLARE_WRITE8_MEMBER(sound_command_w);
DECLARE_WRITE8_MEMBER(pending_command_clear_w);
DECLARE_WRITE16_MEMBER(crshrace_videoram1_w);
DECLARE_WRITE16_MEMBER(crshrace_videoram2_w);
DECLARE_WRITE16_MEMBER(crshrace_roz_bank_w);
DECLARE_WRITE16_MEMBER(crshrace_gfxctrl_w);
DECLARE_CUSTOM_INPUT_MEMBER(country_sndpending_r);
DECLARE_DRIVER_INIT(crshrace2);
DECLARE_DRIVER_INIT(crshrace);
TILE_GET_INFO_MEMBER(get_tile_info1);