void ds2401_init( running_machine *machine, int which, const UINT8 *data )
{
struct ds2401_chip *c = &ds2401[ which ];
c->state = STATE_IDLE;
c->bit = 0;
c->byte = 0;
c->shift = 0;
c->rx = 1;
c->tx = 1;
c->data = data;
c->t_samp = ATTOTIME_IN_USEC( 15 );
c->t_rdv = ATTOTIME_IN_USEC( 15 );
c->t_rstl = ATTOTIME_IN_USEC( 480 );
c->t_pdh = ATTOTIME_IN_USEC( 15 );
c->t_pdl = ATTOTIME_IN_USEC( 60 );
state_save_register_item(machine, "ds2401", NULL, which, c->state );
state_save_register_item(machine, "ds2401", NULL, which, c->bit );
state_save_register_item(machine, "ds2401", NULL, which, c->byte );
state_save_register_item(machine, "ds2401", NULL, which, c->shift );
state_save_register_item(machine, "ds2401", NULL, which, c->rx );
state_save_register_item(machine, "ds2401", NULL, which, c->tx );
c->timer = timer_alloc(machine, ds2401_tick , NULL);
c->reset_timer = timer_alloc(machine, ds2401_reset , NULL);
}
static WRITE16_HANDLER( m68901_w )
{
// UINT8 value = (data >> 8) & 0xff;
m68901_base[offset] = data;
switch (offset)
{
case 0x0c:
case 0x0d:
case 0x0e:
break;
case 0x0f:
/* Very dodgy */
timer_set(space->machine, ATTOTIME_IN_USEC(1000), NULL, 0, timera_int);
break;
case 0x10:
case 0x11:
break;
case 0x12:
/* Aargh! */
timer_set(space->machine, ATTOTIME_IN_USEC(500), NULL, 0, timerd_int);
break;
}
}
static INTERRUPT_GEN( gaplus_interrupt_1 )
{
running_device *io58xx = device->machine->device("58xx");
running_device *io56xx = device->machine->device("56xx");
irq0_line_assert(device); // this also checks if irq is enabled - IMPORTANT!
// so don't replace with cputag_set_input_line(machine, "maincpu", 0, ASSERT_LINE);
if (!namcoio_read_reset_line(io58xx)) /* give the cpu a tiny bit of time to write the command before processing it */
timer_set(device->machine, ATTOTIME_IN_USEC(50), NULL, 0, namcoio_run);
if (!namcoio_read_reset_line(io56xx)) /* give the cpu a tiny bit of time to write the command before processing it */
timer_set(device->machine, ATTOTIME_IN_USEC(50), NULL, 1, namcoio_run);
}
static void wd33c93_select_cmd( void )
{
UINT8 unit = wd33c93_getunit();
UINT8 newstatus;
/* see if we can select that device */
if ( devices[unit] )
{
/* device is available - signal selection done */
newstatus = CSR_SELECT;
/* determine the next bus phase depending on the command */
if ( (scsi_data.regs[WD_COMMAND] & 0x7f) == WD_CMD_SEL_ATN )
{
/* /ATN asserted during select: Move to Message Out Phase to read identify */
scsi_data.busphase = PHS_MESS_OUT;
}
else
{
/* No /ATN asserted: Move to Command Phase */
scsi_data.busphase = PHS_COMMAND;
}
/* queue up a service request out in the future */
timer_set( ATTOTIME_IN_USEC(50), NULL, 0, wd33c93_service_request );
}
else
{
/* device is not available */
newstatus = CSR_TIMEOUT;
}
/* complete the command */
wd33c93_complete_cmd(newstatus);
}
static WRITE16_HANDLER( cabal_sound_irq_trigger_word_w )
{
seibu_main_word_w(space,4,data,mem_mask);
/* spin for a while to let the Z80 read the command, otherwise coins "stick" */
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(50));
}
static WRITE16_HANDLER( hypr_subcpu_control_w )
{
int pc = activecpu_get_pc();
if (data & 0x01)
{
if (!subcpu_resetline)
{
if (pc != 0x95f2)
{
cpunum_set_input_line(1, INPUT_LINE_RESET, ASSERT_LINE);
subcpu_resetline = 1;
} else {
cpunum_set_input_line(1, INPUT_LINE_HALT, ASSERT_LINE);
subcpu_resetline = -1;
}
}
} else {
if (subcpu_resetline == 1 && (data != 0x0c))
{
cpunum_set_input_line(1, INPUT_LINE_RESET, CLEAR_LINE);
subcpu_resetline = 0;
if (pc == 0xbb0 || pc == 0x9d30 || pc == 0xb19c)
cpu_spinuntil_time(ATTOTIME_IN_USEC(15000)); /* sync semaphore */
}
else if (subcpu_resetline == -1)
{
cpunum_set_input_line(1, INPUT_LINE_HALT, CLEAR_LINE);
subcpu_resetline = 0;
}
}
}
void spacefev_start_red_cannon( running_machine *machine )
{
n8080_state *state = (n8080_state *)machine->driver_data;
state->spacefev_red_cannon = 1;
timer_adjust_oneshot(state->cannon_timer, ATTOTIME_IN_USEC(550 * 68 * 10), 0);
}
static READ32_HANDLER( osman_speedup_r )
{
simpl156_state *state = space->machine->driver_data<simpl156_state>();
if (cpu_get_pc(space->cpu) == 0x5974)
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(400));
return state->systemram[0x10/4];
}
static WRITE8_HANDLER( sound_arm_nmi_w )
{
asterix_state *state = (asterix_state *)space->machine->driver_data;
cpu_set_input_line(state->audiocpu, INPUT_LINE_NMI, CLEAR_LINE);
timer_set(space->machine, ATTOTIME_IN_USEC(5), NULL, 0, nmi_callback);
}
/* at least speeds up the annoying copyright screens ;-) */
static READ64_HANDLER( naomigd_sfz3ugd_idle_skip_r )
{
if (cpu_get_pc(space->cpu)==0xc36a2dc)
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(500));
return naomi_ram64[0x5dc900/8];
}
static WRITE8_HANDLER( z80_arm_nmi_w )
{
vendetta_state *state = (vendetta_state *)space->machine->driver_data;
cpu_set_input_line(state->audiocpu, INPUT_LINE_NMI, CLEAR_LINE);
timer_set(space->machine, ATTOTIME_IN_USEC(25), NULL, 0, z80_nmi_callback);
}
static READ64_HANDLER( naomigd_ggxx_idle_skip_r )
{
if (cpu_get_pc(space->cpu)==0xc0b5c3c) // or 0xc0bab0c
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(500));
return naomi_ram64[0x1837b8/8];
}
static TIMER_CALLBACK( pr8210_bit_callback )
{
attotime duration = ATTOTIME_IN_MSEC(30);
const device_config *laserdisc = ptr;
UINT8 bitsleft = param >> 16;
UINT8 data = param;
/* if we have bits, process */
if (bitsleft != 0)
{
/* assert the line and set a timer for deassertion */
laserdisc_line_w(laserdisc, LASERDISC_LINE_CONTROL, ASSERT_LINE);
timer_set(machine, ATTOTIME_IN_USEC(250), ptr, 0, pr8210_bit_off_callback);
/* space 0 bits apart by 1msec, and 1 bits by 2msec */
duration = attotime_mul(ATTOTIME_IN_MSEC(1), (data & 0x80) ? 2 : 1);
data <<= 1;
bitsleft--;
}
/* if we're out of bits, queue up the next command */
else if (bitsleft == 0 && pr8210_command_buffer_in != pr8210_command_buffer_out)
{
data = pr8210_command_buffer[pr8210_command_buffer_out++ % ARRAY_LENGTH(pr8210_command_buffer)];
bitsleft = 12;
}
timer_adjust_oneshot(pr8210_bit_timer, duration, (bitsleft << 16) | data);
}
static READ64_HANDLER( naomigd_ggxxsla_idle_skip_r )
{
if (cpu_get_pc(space->cpu)==0x0c0c9adc)
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(500));
return naomi_ram64[0x1aae18/8];
}
static READ32_HANDLER( charlien_speedup_r )
{
simpl156_state *state = (simpl156_state *)space->machine->driver_data;
if (cpu_get_pc(space->cpu) == 0xc8c8)
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(400));
return state->systemram[0x10/4];
}
static WRITE8_HANDLER( intrq_w )
{
// T = 1.1 * R30 * C53 = 1.1 * 750K * 0.01uF = 8.25 ms
cputag_set_input_line(space->machine, "maincpu", INPUT_LINE_IRQ0, HOLD_LINE);
timer_set(space->machine, ATTOTIME_IN_USEC(8250), NULL, 0, intrq_tick);
}
static void josvolly_8741_do(running_machine *machine, int num)
{
if( (i8741[num].sts & 0x02) )
{
/* transmit data */
timer_set (machine, ATTOTIME_IN_USEC(1), NULL, num, josvolly_8741_tx);
}
}
static TIMER_CALLBACK( delayed_sound_w )
{
main_to_sound_data = param;
main_to_sound_ready = 1;
cpu_triggerint(1);
/* use a timer to make long transfers faster */
timer_set(ATTOTIME_IN_USEC(50), NULL, 0, 0);
}
static INTERRUPT_GEN( vblank_callback_lgp )
{
// NMI
//cpu_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
// IRQ
cpu_set_input_line(device, 0, ASSERT_LINE);
timer_set(device->machine, ATTOTIME_IN_USEC(50), NULL, 0, irq_stop);
}
static WRITE16_HANDLER( esd16_sound_command_w )
{
if (ACCESSING_LSB)
{
soundlatch_w(0,data & 0xff);
cpunum_set_input_line(1,0,ASSERT_LINE); // Generate an IRQ
cpu_spinuntil_time(ATTOTIME_IN_USEC(50)); // Allow the other CPU to reply
}
}
static READ64_HANDLER( naomigd_ggxxrl_idle_skip_r )
{
if (cpu_get_pc(space->cpu)==0xc0b84bc) // or 0xc0bab0c
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(500));
//printf("%08x\n", cpu_get_pc(space->cpu));
return naomi_ram64[0x18d6c8/8];
}
static void via_irq(int state)
{
// from gameplan.c
/* Kaos sits in a tight loop polling the VIA irq flags register, but that register is
cleared by the irq handler. Therefore, I wait a bit before triggering the irq to
leave time for the program to see the flag change. */
timer_set(ATTOTIME_IN_USEC(50), NULL, state, via_irq_delayed);
}
static TIMER_CALLBACK( delayed_sound_w )
{
main_to_sound_data = param;
main_to_sound_ready = 1;
cpu_triggerint(cputag_get_cpu(machine, "audiocpu"));
/* use a timer to make long transfers faster */
timer_set(machine, ATTOTIME_IN_USEC(50), NULL, 0, 0);
}
static WRITE8_HANDLER( xain_sharedram_w )
{
/* locations 003d and 003e are used as a semaphores between CPU A and B, */
/* so let's resync every time they are changed to avoid deadlocks */
if ((offset == 0x003d || offset == 0x003e)
&& xain_sharedram[offset] != data)
cpu_boost_interleave(attotime_zero, ATTOTIME_IN_USEC(20));
xain_sharedram[offset] = data;
}
static WRITE16_HANDLER( roldf_sh_irqtrigger_w )
{
if (ACCESSING_BITS_0_7){
soundlatch_w(machine,0,data & 0xff);
cpunum_set_input_line(machine, 1,0,HOLD_LINE);
}
// give the z80 time to see it
cpu_spinuntil_time(ATTOTIME_IN_USEC(40));
}
static READ64_HANDLER( naomi_bios_idle_skip_r )
{
if (cpu_get_pc(space->cpu)==0xc04173c)
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(500));
//cpu_spinuntil_int(space->cpu);
// else
// printf("%08x\n", cpu_get_pc(space->cpu));
return naomi_ram64[0x2ad238/8];
}
static WRITE16_HANDLER( fuuki16_sound_command_w )
{
if (ACCESSING_LSB)
{
soundlatch_w(0,data & 0xff);
cpunum_set_input_line(1, INPUT_LINE_NMI, PULSE_LINE);
// cpu_spinuntil_time(ATTOTIME_IN_USEC(50)); // Allow the other CPU to reply
cpu_boost_interleave(attotime_zero, ATTOTIME_IN_USEC(50)); // Fixes glitching in rasters
}
}
static MACHINE_RESET( galpani2 )
{
MACHINE_RESET_CALL(kaneko16);
kaneko16_sprite_type = 1;
kaneko16_sprite_xoffs = 0x10000 - 0x16c0 + 0xc00;
kaneko16_sprite_yoffs = 0x000;
cpuexec_boost_interleave(machine, attotime_zero, ATTOTIME_IN_USEC(50)); //initial mcu xchk
}
static WRITE16_HANDLER( sandscrp_soundlatch_word_w )
{
if (ACCESSING_BITS_0_7)
{
latch1_full = 1;
soundlatch_w(space, 0, data & 0xff);
cputag_set_input_line(space->machine, "audiocpu", INPUT_LINE_NMI, PULSE_LINE);
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(100)); // Allow the other cpu to reply
}
}
static WRITE16_HANDLER( fuuki16_sound_command_w )
{
fuuki16_state *state = (fuuki16_state *)space->machine->driver_data;
if (ACCESSING_BITS_0_7)
{
soundlatch_w(space,0,data & 0xff);
cpu_set_input_line(state->audiocpu, INPUT_LINE_NMI, PULSE_LINE);
// cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(50)); // Allow the other CPU to reply
cpuexec_boost_interleave(space->machine, attotime_zero, ATTOTIME_IN_USEC(50)); // Fixes glitching in rasters
}
}