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f1en: reworked 8792426f66 as per comments to the commit (nw)

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This commit is contained in:
Ivan Vangelista 2019-10-12 14:22:29 +02:00
parent 6a85f014b8
commit 17874f6139
2 changed files with 4 additions and 5 deletions
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4
src/devices/sound/rf5c68.cpp
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@ -63,10 +63,6 @@ void rf5c68_device::device_start()
m_cache = space().cache<0, 0, ENDIANNESS_LITTLE>();
m_sample_end_cb.bind_relative_to(*owner());
// needs to be initialized to 0xff, otherwise f1en has bad sound (MT04531)
for (int i = 0; i < 0x10000; i++)
m_data->write_byte(i, 0xff);
/* allocate the stream */
m_stream = stream_alloc(0, 2, clock() / 384);

5
src/mame/drivers/segas32.cpp
View File

@ -1242,7 +1242,7 @@ void segas32_state::system32_sound_portmap(address_map &map)
void segas32_state::rf5c68_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0xffff).ram();
map(0x0000, 0xffff).ram().share("rf5c68_mem");
}
@ -5432,6 +5432,9 @@ void segas32_state::segas32_common_init()
m_sw1_output = nullptr;
m_sw2_output = nullptr;
m_sw3_output = nullptr;
// needs to be initialized to 0xff, otherwise f1en has bad sound (MT04531)
memset(memshare("rf5c68_mem")->ptr(), 0xff, memshare("rf5c68_mem")->bytes());
}