//void okim6295_set_pin7(running_device *device, int pin7)
private static void okim6295_set_pin7(okim6295_state info, int pin7,okim6295Info Info)
{
//okim6295_state *info = get_safe_token(device);
//int divisor = pin7 ? 132 : 165;
Info.pin7State = (byte)pin7;
info.pin7_state = (byte)pin7;
//stream_set_sample_rate(info->stream, info->master_clock/divisor);
okim6295_clock_changed(info);
}
/**********************************************************************************************
okim6295_data_w -- write to the data port of an OKIM6295-compatible chip
***********************************************************************************************/
//WRITE8_DEVICE_HANDLER( okim6295_w )
private void okim6295_write_command(okim6295_state info, byte data,okim6295Info Info)
{
//okim6295_state *info = get_safe_token(device);
/* if a command is pending, process the second half */
if (info.command != -1)
{
int temp = data >> 4, i, start, stop;
int iBase;
/* the manual explicitly says that it's not possible to start multiple voices at the same time */
// if (temp != 0 && temp != 1 && temp != 2 && temp != 4 && temp != 8)
// System.Console.Write("OKI6295 start %x contact MAMEDEV\n", temp);
/* update the stream */
//stream_update(info->stream);
/* determine which voice(s) (voice is set by a 1 bit in the upper 4 bits of the second byte) */
for (i = 0; i < okim6295_state.OKIM6295_VOICES; i++, temp >>= 1)
{
if ((temp & 1) != 0)
{
ADPCMVoice voice = info.voice[i];
/* determine the start/stop positions */
iBase = info.command * 8;
//start = memory_raw_read_byte(device->space(), base + 0) << 16;
start = memory_raw_read_byte(info, iBase + 0) << 16;
start |= memory_raw_read_byte(info, iBase + 1) << 8;
start |= memory_raw_read_byte(info, iBase + 2) << 0;
start &= 0x3ffff;
Info.chInfo[i].stAdr = start;
stop = memory_raw_read_byte(info, iBase + 3) << 16;
stop |= memory_raw_read_byte(info, iBase + 4) << 8;
stop |= memory_raw_read_byte(info, iBase + 5) << 0;
stop &= 0x3ffff;
Info.chInfo[i].edAdr = stop;
/* set up the voice to play this sample */
if (start < stop)
{
if (voice.playing == 0) /* fixes Got-cha and Steel Force */
{
voice.playing = 1;
voice.base_offset = (uint)start;
voice.sample = 0;
voice.count = (uint)(2 * (stop - start + 1));
/* also reset the ADPCM parameters */
reset_adpcm(voice.adpcm);
voice.volume = (uint)volume_table[data & 0x0f];
Info.keyon[i] = true;
}
else
{
//logerror("OKIM6295:'%s' requested to play sample %02x on non-stopped voice\n",device->tag(),info->command);
// just displays warnings when seeking
//logerror("OKIM6295: Voice %u requested to play sample %02x on non-stopped voice\n",i,info->command);
}
}
/* invalid samples go here */
else
{
//logerror("OKIM6295:'%s' requested to play invalid sample %02x\n",device->tag(),info->command);
//System.Console.Write("OKIM6295: Voice {0} requested to play invalid sample {1:X2} StartAddr {2:X} StopAdr {3:X} \n", i, info.command, start, stop);
voice.playing = 0;
}
}
}
/* reset the command */
info.command = -1;
}
/* if this is the start of a command, remember the sample number for next time */
else if ((data & 0x80) != 0)
{
info.command = data & 0x7f;
}
/* otherwise, see if this is a silence command */
else
{
int temp = data >> 3, i;
/* update the stream, then turn it off */
//stream_update(info->stream);
/* determine which voice(s) (voice is set by a 1 bit in bits 3-6 of the command */
for (i = 0; i < okim6295_state.OKIM6295_VOICES; i++, temp >>= 1)
{
if ((temp & 1) != 0)
{
ADPCMVoice voice = info.voice[i];
voice.playing = 0;
}
}
}
}
