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OKI MSM9810 : Added sub-table lookups. [Andrew Gardner]

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(out of whatsnew.txt)
Still plenty to do, but half the games should sound perfect now.
This commit is contained in:
Andrew Gardner 2011-02-17 06:28:24 +00:00
parent 64736f5f19
commit 8e5664b178
2 changed files with 52 additions and 2 deletions
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39
src/emu/sound/okim9810.c
View File

@ -40,6 +40,27 @@ const UINT8 okim9810_device::s_volume_table[16] =
0x04, // -30.0 dB
};
// sampling frequency lookup table.
const UINT32 okim9810_device::s_sampling_freq_table[16] =
{
4000,
8000,
16000,
32000,
0,
6400,
12800,
25600,
0,
5300,
10600,
21200,
0,
0,
0,
0
};
// default address map
static ADDRESS_MAP_START( okim9810, 0, 8 )
AM_RANGE(0x000000, 0xffffff) AM_ROM
@ -294,6 +315,20 @@ void okim9810_device::write_command(UINT8 data)
endAddr |= m_direct->read_raw_byte(base + 6) << 8;
endAddr |= m_direct->read_raw_byte(base + 7) << 0;
// Sub-table
if (startFlags & 0x80)
{
// TODO: Offset (oldStart+0) and (oldStart+4) are currently ignored - can the chaining continue?
offs_t oldStart = startAddr;
startAddr = m_direct->read_raw_byte(oldStart + 1) << 16;
startAddr |= m_direct->read_raw_byte(oldStart + 2) << 8;
startAddr |= m_direct->read_raw_byte(oldStart + 3) << 0;
endAddr = m_direct->read_raw_byte(oldStart + 5) << 16;
endAddr |= m_direct->read_raw_byte(oldStart + 6) << 8;
endAddr |= m_direct->read_raw_byte(oldStart + 7) << 0;
}
mame_printf_verbose("FADR channel %d phrase offset %02x => ", channel, m_TMP_register);
mame_printf_verbose("\tstartFlags(%02x) startAddr(%06x) endFlags(%02x) endAddr(%06x) bytes(%d)\n", startFlags, startAddr, endFlags, endAddr, endAddr-startAddr);
m_voice[channel].m_sample = 0;
@ -314,13 +349,13 @@ void okim9810_device::write_command(UINT8 data)
case 0x06: // DADR (direct address playback)
{
mame_printf_warning("DADR channel %d complex data %02x\n", channel, m_TMP_register);
mame_printf_warning("DADR channel %d complex data %02x\n", channel, m_TMP_register);
mame_printf_warning("MSM9810: UNIMPLEMENTED COMMAND!\n");
break;
}
case 0x07: // CVOL (channel volume)
{
mame_printf_verbose("CVOL channel %d volume level %02x\n", channel, m_TMP_register);
mame_printf_verbose("CVOL channel %d volume level %02x\n", channel, m_TMP_register);
mame_printf_verbose("\tChannel %d -> volume %d.\n", channel, s_volume_table[m_TMP_register & 0x0f]);
m_voice[channel].m_volume = s_volume_table[m_TMP_register & 0x0f];

15
src/emu/sound/okim9810.h
View File

@ -33,6 +33,20 @@ enum
OKIM9810_NONLINEAR8_PLAYBACK = 3
};
enum
{
OKIM9810_SECONDARY_FILTER = 0,
OKIM9810_PRIMARY_FILTER = 1,
OKIM9810_NO_FILTER = 2,
OKIM9810_NO_FILTER2 = 3
};
enum
{
OKIM9810_OUTPUT_TO_DIRECT_DAC = 0,
OKIM9810_OUTPUT_TO_VOLTAGE_FOLLOWER = 1
};
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
@ -144,6 +158,7 @@ protected:
okim_voice m_voice[OKIM9810_VOICES];
static const UINT8 s_volume_table[16];
static const UINT32 s_sampling_freq_table[16];
};