/*************************************
*
* Rev. 1 input ports
*
*************************************/
INPUT_PORTS_START( gottlieb1_sound )
PORT_START("SB1")
PORT_DIPUNKNOWN_DIPLOC( 0x01, 0x01, "SB1:7" )
PORT_DIPUNKNOWN_DIPLOC( 0x02, 0x02, "SB1:6" )
PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x04, "SB1:5" )
PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x08, "SB1:1" )
PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x10, "SB1:4" )
PORT_DIPUNKNOWN_DIPLOC( 0x20, 0x20, "SB1:3" )
PORT_DIPNAME( 0x40, 0x40, "Sound Test" )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x80, 0x80, IPT_UNKNOWN ) /* To U3-6 on QBert */
INPUT_PORTS_END
/*************************************
*
* Rev. 2 communication handlers
*
*************************************/
static void gottlieb2_sh_w(const address_space *space, UINT8 data)
{
/* when data is not 0xff, the transparent latch at A3 allows it to pass through unmolested */
if (data != 0xff)
{
/* each CPU has its own latch */
soundlatch_w(space, 0, data);
soundlatch2_w(space, 0, data);
/* if the previous data was 0xff, clock an IRQ on each */
if (last_command == 0xff)
{
cputag_set_input_line(space->machine, "audiocpu", M6502_IRQ_LINE, ASSERT_LINE);
cputag_set_input_line(space->machine, "speech", M6502_IRQ_LINE, ASSERT_LINE);
}
}
last_command = data;
}
static WRITE16_HANDLER( sound_cmd_w )
{
if(ACCESSING_LSB) {
data &= 0xff;
soundlatch_w(0, data);
if(!Machine->sample_rate)
if(data == 0xfc || data == 0xfe)
soundlatch2_w(0, 0x7f);
}
}
static WRITE16_HANDLER( fromanc2_sndcmd_w )
{
fromanc2_state *state = space->machine().driver_data<fromanc2_state>();
soundlatch_w(space, offset, (data >> 8) & 0xff); // 1P (LEFT)
soundlatch2_w(space, offset, data & 0xff); // 2P (RIGHT)
device_set_input_line(state->m_audiocpu, INPUT_LINE_NMI, PULSE_LINE);
state->m_sndcpu_nmi_flag = 0;
}
static WRITE8_HANDLER( sandscrp_soundlatch_w )
{
latch2_full = 1;
soundlatch2_w(space,0,data);
}
static WRITE_HANDLER(cslatch2_w) {
if (!s11clocals.ignore)
soundlatch2_w(offset, data);
else s11clocals.ignore--;
}
static WRITE8_HANDLER( sandscrp_soundlatch_w )
{
sandscrp_state *state = space->machine->driver_data<sandscrp_state>();
state->latch2_full = 1;
soundlatch2_w(space,0,data);
}
