Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-29 17:13:05 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

ymz774: verified SEQ "Stop Channels" feature works as was expected, remove logging (nw)

Browse Source
This commit is contained in:
MetalliC 2017-12-17 17:13:54 +02:00
parent d1b02ba8fe
commit 7e3c5676dc
1 changed files with 3 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/devices/sound/ymz770.cpp
View File

@ -500,9 +500,7 @@ void ymz774_device::internal_reg_write(uint8_t reg, uint8_t data)
m_channels[ch].is_playing = true;
}
else
{
m_channels[ch].is_playing = false;
}
break;
case 0x58: // Pause / Resume
if (data) logerror("pause/resume unimplemented %02X %02X\n", reg, data);
@ -559,14 +557,13 @@ void ymz774_device::internal_reg_write(uint8_t reg, uint8_t data)
case 0x98: // Off trigger, bit4 = on/off, bits0-3 channel (end sequence when channel playback ends)
if (data) logerror("SEQ Off trigger unimplemented %02X %02X\n", reg, data);
break;
case 0xa0: // stop channel mask H and L, what it for ? stop chanels immediatelly or when sequence ends (so far assuming later) ?
case 0xa0: // stop channel mask H and L (when sequence stoped)
case 0xa8:
sq = (reg >> 1) & 7;
if (reg & 1)
m_sequences[sq].stopchan = (m_sequences[sq].stopchan & 0xff00) | data;
else
m_sequences[sq].stopchan = (m_sequences[sq].stopchan & 0x00ff) | (data << 8);
if (data) logerror("Check me: SEQ Stop Channels used %02X %02X\n", reg, data);
break;
case 0xb0:
m_sqcs[sq].sqc = data;
@ -583,7 +580,7 @@ void ymz774_device::internal_reg_write(uint8_t reg, uint8_t data)
{
//logerror("SQC %d stop (%s)\n", sq, m_sqcs[sq].is_playing ? "playing" : "stopped");
m_sqcs[sq].is_playing = false;
// stop SEQ too, is this right ? at least kof98umh never manually stop SEQ
// stop SEQ too, and stop chanels
if (m_sequences[sq].is_playing)
for (int ch = 0; ch < 16; ch++)
if (m_sequences[sq].stopchan & (1 << ch))
@ -654,9 +651,7 @@ void ymz774_device::sequencer()
if (sequence.is_playing)
{
if (sequence.delay > 0)
{
--sequence.delay;
}
else
{
int reg = get_rom_byte(sequence.offset++);
@ -664,7 +659,7 @@ void ymz774_device::sequencer()
switch (reg)
{
case 0xff: // end
for (int ch = 0; ch < 16; ch++) // check this
for (int ch = 0; ch < 16; ch++) // might be wrong, ie not needed in case of loop
if (sequence.stopchan & (1 << ch))
m_channels[ch].is_playing = false;
if (sequence.loop)