void mb87078_device::data_w( int data, int dsel )
{
if (m_reset_comp == 0)
return;
if (dsel == 0) /* gd0 - gd5 */
{
m_latch[0][m_channel_latch] = data & 0x3f;
}
else /* dcs1, dsc2, en, c0, c32, X */
{
m_channel_latch = data & 3;
m_latch[1][m_channel_latch] = data & 0x1f; //always zero bit 5
}
gain_recalc();
}
void MB87078_data_w(int which, int data, int dsel)
{
struct MB87078 *c = chip + which;
if (c->reset_comp==0) return;
if (dsel==0)
{ /*gd0-gd5*/
c->latch[0+c->channel_latch] = data & 0x3f;
}
else
{ /*dcs1,dsc2,en,c0,c32,X*/
c->channel_latch = data & 3;
c->latch[4+c->channel_latch] = data & 0x1f; //always zero bit 5
}
gain_recalc(which);
}
void MB87078_reset_comp_w(int which, int level)
{
struct MB87078 *c = chip + which;
c->reset_comp = level;
/*this seems to be true, according to the datasheets*/
if (level==0)
{
c->latch[0] = 0x3f;
c->latch[1] = 0x3f;
c->latch[2] = 0x3f;
c->latch[3] = 0x3f;
c->latch[4] = 0x0 | 0x4;
c->latch[5] = 0x1 | 0x4;
c->latch[6] = 0x2 | 0x4;
c->latch[7] = 0x3 | 0x4;
}
gain_recalc(which);
}
void mb87078_device::reset_comp_w( int level )
{
m_reset_comp = level;
/*this seems to be true, according to the datasheets*/
if (level == 0)
{
m_latch[0][0] = 0x3f;
m_latch[0][1] = 0x3f;
m_latch[0][2] = 0x3f;
m_latch[0][3] = 0x3f;
m_latch[1][0] = 0x0 | 0x4;
m_latch[1][1] = 0x1 | 0x4;
m_latch[1][2] = 0x2 | 0x4;
m_latch[1][3] = 0x3 | 0x4;
}
gain_recalc();
}
