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No, actually done this way according to schematic (nw)

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This commit is contained in:
AJR 2017-06-21 23:22:14 -04:00
parent 164ada7085
commit 4b5f16e1d8
2 changed files with 9 additions and 3 deletions
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11
src/mame/drivers/snk68.cpp
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@ -96,13 +96,19 @@ WRITE16_MEMBER(snk68_state::protection_w)
}
}
WRITE8_MEMBER(snk68_state::sound_w)
{
m_soundlatch->write(space, 0, data);
m_soundcpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE); // caused by 74123
}
/*******************************************************************************/
static ADDRESS_MAP_START( pow_map, AS_PROGRAM, 16, snk68_state )
AM_RANGE(0x000000, 0x03ffff) AM_ROM
AM_RANGE(0x040000, 0x043fff) AM_RAM
AM_RANGE(0x080000, 0x080001) AM_READ(control_1_r)
AM_RANGE(0x080000, 0x080001) AM_DEVWRITE8("soundlatch", generic_latch_8_device, write, 0xff00)
AM_RANGE(0x080000, 0x080001) AM_WRITE8(sound_w, 0xff00)
AM_RANGE(0x0c0000, 0x0c0001) AM_READ_PORT("SYSTEM")
AM_RANGE(0x0c0000, 0x0c0001) AM_WRITE(pow_flipscreen_w) // + char bank
AM_RANGE(0x0e0000, 0x0e0001) AM_READNOP /* Watchdog or IRQ ack */
@ -119,7 +125,7 @@ static ADDRESS_MAP_START( searchar_map, AS_PROGRAM, 16, snk68_state )
AM_RANGE(0x000000, 0x03ffff) AM_ROM
AM_RANGE(0x040000, 0x043fff) AM_RAM
AM_RANGE(0x080000, 0x080005) AM_READ(protcontrols_r) /* Player 1 & 2 */
AM_RANGE(0x080000, 0x080001) AM_DEVWRITE8("soundlatch", generic_latch_8_device, write, 0xff00)
AM_RANGE(0x080000, 0x080001) AM_WRITE8(sound_w, 0xff00)
AM_RANGE(0x080006, 0x080007) AM_WRITE(protection_w) /* top byte unknown, bottom is protection in ikari3 and streetsm */
AM_RANGE(0x0c0000, 0x0c0001) AM_WRITE(searchar_flipscreen_w)
AM_RANGE(0x0c0000, 0x0c0001) AM_READ(rotary_1_r) /* Player 1 rotary */
@ -614,7 +620,6 @@ static MACHINE_CONFIG_START( pow )
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_GENERIC_LATCH_8_ADD("soundlatch")
MCFG_GENERIC_LATCH_DATA_PENDING_CB(INPUTLINE("soundcpu", INPUT_LINE_NMI))
MCFG_GENERIC_LATCH_8_ADD("soundlatch2")
MCFG_SOUND_ADD("ymsnd", YM3812, XTAL_8MHz/2) /* verified on pcb */

1
src/mame/includes/snk68.h
View File

@ -39,6 +39,7 @@ public:
uint32_t m_fg_tile_offset;
// common
DECLARE_WRITE8_MEMBER(sound_w);
DECLARE_WRITE8_MEMBER(D7759_write_port_0_w);
DECLARE_WRITE8_MEMBER(D7759_upd_reset_w);