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Update ymfm to latest upstream

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This commit is contained in:
Jasmine Iwanek
2023-04-11 17:53:58 -04:00
parent da36911c9a
commit 8967df23c2
5 changed files with 40 additions and 29 deletions
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34
src/sound/ymfm/ymfm.h
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@@ -40,11 +40,11 @@
#include <cassert>
#include <cstdint>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <memory>
#include <string>
#include <vector>
#include <cstring>
namespace ymfm
{
@@ -329,7 +329,7 @@ struct ymfm_output
// ======================> ymfm_wavfile
// this class is a debugging helper that accumulates data and writes it to wav files
template<int _Channels>
template<int Channels>
class ymfm_wavfile
{
public:
@@ -361,10 +361,10 @@ public:
memcpy(&header[12], "fmt ", 4);
*(uint32_t *)&header[16] = 16;
*(uint16_t *)&header[20] = 1;
*(uint16_t *)&header[22] = _Channels;
*(uint16_t *)&header[22] = Channels;
*(uint32_t *)&header[24] = m_samplerate;
*(uint32_t *)&header[28] = m_samplerate * 2 * _Channels;
*(uint16_t *)&header[32] = 2 * _Channels;
*(uint32_t *)&header[28] = m_samplerate * 2 * Channels;
*(uint16_t *)&header[32] = 2 * Channels;
*(uint16_t *)&header[34] = 16;
memcpy(&header[36], "data", 4);
*(uint32_t *)&header[40] = m_buffer.size() * 2 + 44 - 44;
@@ -377,24 +377,24 @@ public:
}
// add data to the file
template<int _Outputs>
void add(ymfm_output<_Outputs> output)
template<int Outputs>
void add(ymfm_output<Outputs> output)
{
int16_t sum[_Channels] = { 0 };
for (int index = 0; index < _Outputs; index++)
sum[index % _Channels] += output.data[index];
for (int index = 0; index < _Channels; index++)
int16_t sum[Channels] = { 0 };
for (int index = 0; index < Outputs; index++)
sum[index % Channels] += output.data[index];
for (int index = 0; index < Channels; index++)
m_buffer.push_back(sum[index]);
}
// add data to the file, using a reference
template<int _Outputs>
void add(ymfm_output<_Outputs> output, ymfm_output<_Outputs> const &ref)
template<int Outputs>
void add(ymfm_output<Outputs> output, ymfm_output<Outputs> const &ref)
{
int16_t sum[_Channels] = { 0 };
for (int index = 0; index < _Outputs; index++)
sum[index % _Channels] += output.data[index] - ref.data[index];
for (int index = 0; index < _Channels; index++)
int16_t sum[Channels] = { 0 };
for (int index = 0; index < Outputs; index++)
sum[index % Channels] += output.data[index] - ref.data[index];
for (int index = 0; index < Channels; index++)
m_buffer.push_back(sum[index]);
}

6
src/sound/ymfm/ymfm_fm.h
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@@ -33,7 +33,7 @@
#pragma once
#define DEBUG_LOG_WAVFILES (0)
#define YMFM_DEBUG_LOG_WAVFILES (0)
namespace ymfm
{
@@ -401,7 +401,7 @@ public:
// compute sample rate
uint32_t sample_rate(uint32_t baseclock) const
{
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
for (uint32_t chnum = 0; chnum < CHANNELS; chnum++)
m_wavfile[chnum].set_samplerate(baseclock / (m_clock_prescale * OPERATORS));
#endif
@@ -453,7 +453,7 @@ protected:
RegisterType m_regs; // register accessor
std::unique_ptr<fm_channel<RegisterType>> m_channel[CHANNELS]; // channel pointers
std::unique_ptr<fm_operator<RegisterType>> m_operator[OPERATORS]; // operator pointers
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
mutable ymfm_wavfile<1> m_wavfile[CHANNELS]; // for debugging
#endif
};

13
src/sound/ymfm/ymfm_fm.ipp
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@@ -1185,6 +1185,7 @@ fm_engine_base<RegisterType>::fm_engine_base(ymfm_interface &intf) :
m_irq_mask(STATUS_TIMERA | STATUS_TIMERB),
m_irq_state(0),
m_timer_running{0,0},
m_total_clocks(0),
m_active_channels(ALL_CHANNELS),
m_modified_channels(ALL_CHANNELS),
m_prepare_count(0)
@@ -1200,7 +1201,7 @@ fm_engine_base<RegisterType>::fm_engine_base(ymfm_interface &intf) :
for (uint32_t opnum = 0; opnum < OPERATORS; opnum++)
m_operator[opnum] = std::make_unique<fm_operator<RegisterType>>(*this, RegisterType::operator_offset(opnum));
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
for (uint32_t chnum = 0; chnum < CHANNELS; chnum++)
m_wavfile[chnum].set_index(chnum);
#endif
@@ -1332,7 +1333,7 @@ void fm_engine_base<RegisterType>::output(output_data &output, uint32_t rshift,
chanmask &= debug::GLOBAL_FM_CHANNEL_MASK;
// mask out inactive channels
if (!DEBUG_LOG_WAVFILES)
if (!YMFM_DEBUG_LOG_WAVFILES)
chanmask &= m_active_channels;
// handle the rhythm case, where some of the operators are dedicated
@@ -1351,7 +1352,7 @@ void fm_engine_base<RegisterType>::output(output_data &output, uint32_t rshift,
for (uint32_t chnum = 0; chnum < CHANNELS; chnum++)
if (bitfield(chanmask, chnum))
{
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
auto reference = output;
#endif
if (chnum == 6)
@@ -1364,7 +1365,7 @@ void fm_engine_base<RegisterType>::output(output_data &output, uint32_t rshift,
m_channel[chnum]->output_4op(output, rshift, clipmax);
else
m_channel[chnum]->output_2op(output, rshift, clipmax);
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
m_wavfile[chnum].add(output, reference);
#endif
}
@@ -1375,14 +1376,14 @@ void fm_engine_base<RegisterType>::output(output_data &output, uint32_t rshift,
for (uint32_t chnum = 0; chnum < CHANNELS; chnum++)
if (bitfield(chanmask, chnum))
{
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
auto reference = output;
#endif
if (m_channel[chnum]->is4op())
m_channel[chnum]->output_4op(output, rshift, clipmax);
else
m_channel[chnum]->output_2op(output, rshift, clipmax);
#if (DEBUG_LOG_WAVFILES)
#if (YMFM_DEBUG_LOG_WAVFILES)
m_wavfile[chnum].add(output, reference);
#endif
}

15
src/sound/ymfm/ymfm_opl.cpp
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@@ -100,6 +100,11 @@ opl_registers_base<Revision>::opl_registers_base() :
}
}
}
// OPL3/OPL4 have dynamic operators, so initialize the fourop_enable value here
// since operator_map() is called right away, prior to reset()
if (Revision > 2)
m_regdata[0x104 % REGISTERS] = 0;
}
@@ -1710,9 +1715,15 @@ uint8_t ymf278b::read_status()
uint8_t ymf278b::read_data_pcm()
{
// write to FM
// read from PCM
if (bitfield(m_address, 9) != 0)
return m_pcm.read(m_address & 0xff);
{
uint8_t result = m_pcm.read(m_address & 0xff);
if ((m_address & 0xff) == 0x02)
result |= 0x20;
return result;
}
return 0;
}

1
src/sound/ymfm/ymfm_pcm.cpp
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@@ -46,7 +46,6 @@ namespace ymfm
void pcm_registers::reset()
{
std::fill_n(&m_regdata[0], REGISTERS, 0);
m_regdata[0x02] = 0x20;
m_regdata[0xf8] = 0x1b;
}