AM_RANGE(0xff0000, 0xffffff) AM_RAM
ADDRESS_MAP_END
WRITE16_MEMBER(yunsun16_state::magicbub_sound_command_w)
{
if (ACCESSING_BITS_0_7)
{
/*
HACK: the game continuously sends this. It'll play the oki sample
number 0 on each voice. That sample is 00000-00000.
*/
if ((data & 0xff) != 0x3a)
{
soundlatch_byte_w(space, 0, data & 0xff);
m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
}
}
}
void lemmings_state::lemmings_sound_cb( address_space &space, UINT16 data, UINT16 mem_mask )
{
soundlatch_byte_w(space, 0, data & 0xff);
m_audiocpu->set_input_line(1, HOLD_LINE);
}
void dblewing_state::dblewing_sound_cb( address_space &space, UINT16 data, UINT16 mem_mask )
{
soundlatch_byte_w(space, 0, data & 0xff);
m_sound_irq |= 0x02;
m_audiocpu->set_input_line(0, (m_sound_irq != 0) ? ASSERT_LINE : CLEAR_LINE);
}
void tigeroad_state::f1dream_protection_w(address_space &space)
{
int indx;
int value = 255;
int prevpc = space.device().safe_pcbase();
if (prevpc == 0x244c)
{
/* Called once, when a race is started.*/
indx = m_ram16[0x3ff0/2];
m_ram16[0x3fe6/2] = f1dream_2450_lookup[indx];
m_ram16[0x3fe8/2] = f1dream_2450_lookup[++indx];
m_ram16[0x3fea/2] = f1dream_2450_lookup[++indx];
m_ram16[0x3fec/2] = f1dream_2450_lookup[++indx];
}
else if (prevpc == 0x613a)
{
/* Called for every sprite on-screen.*/
if (m_ram16[0x3ff6/2] < 15)
{
indx = f1dream_613ea_lookup[m_ram16[0x3ff6/2]] - m_ram16[0x3ff4/2];
if (indx > 255)
{
indx <<= 4;
indx += m_ram16[0x3ff6/2] & 0x00ff;
value = f1dream_613eb_lookup[indx];
}
}
m_ram16[0x3ff2/2] = value;
}
else if (prevpc == 0x17b70)
{
/* Called only before a real race, not a time trial.*/
if (m_ram16[0x3ff0/2] >= 0x04) indx = 128;
else if (m_ram16[0x3ff0/2] > 0x02) indx = 96;
else if (m_ram16[0x3ff0/2] == 0x02) indx = 64;
else if (m_ram16[0x3ff0/2] == 0x01) indx = 32;
else indx = 0;
indx += m_ram16[0x3fee/2];
if (indx < 128)
{
m_ram16[0x3fe6/2] = f1dream_17b74_lookup[indx];
m_ram16[0x3fe8/2] = f1dream_17b74_lookup[++indx];
m_ram16[0x3fea/2] = f1dream_17b74_lookup[++indx];
m_ram16[0x3fec/2] = f1dream_17b74_lookup[++indx];
}
else
{
m_ram16[0x3fe6/2] = 0x00ff;
m_ram16[0x3fe8/2] = 0x00ff;
m_ram16[0x3fea/2] = 0x00ff;
m_ram16[0x3fec/2] = 0x00ff;
}
}
else if ((prevpc == 0x27f8) || (prevpc == 0x511a) || (prevpc == 0x5142) || (prevpc == 0x516a))
{
/* The main CPU stuffs the byte for the soundlatch into 0xfffffd.*/
soundlatch_byte_w(space,2,m_ram16[0x3ffc/2]);
}
}
