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balsente.cpp: Workaround for recent sound regression (nw)

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This commit is contained in:
AJR 2018-06-16 00:56:39 -04:00
parent 38b8531c54
commit 843484332d
3 changed files with 8 additions and 1 deletions
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2
src/mame/drivers/balsente.cpp
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@ -266,7 +266,7 @@ void balsente_state::cpu1_base_map(address_map &map)
map(0x9902, 0x9902).portr("IN0");
map(0x9903, 0x9903).portr("IN1").nopw();
map(0x9a00, 0x9a03).r(FUNC(balsente_state::random_num_r));
map(0x9a04, 0x9a05).rw("acia", FUNC(acia6850_device::read), FUNC(acia6850_device::write));
map(0x9a04, 0x9a05).r("acia", FUNC(acia6850_device::read)).w(FUNC(balsente_state::acia_w));
map(0xa000, 0xbfff).bankr("bank1");
map(0xc000, 0xffff).bankr("bank2");
}

1
src/mame/includes/balsente.h
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@ -104,6 +104,7 @@ private:
DECLARE_WRITE_LINE_MEMBER(nvrecall_w);
DECLARE_READ8_MEMBER(novram_8bit_r);
DECLARE_WRITE8_MEMBER(novram_8bit_w);
DECLARE_WRITE8_MEMBER(acia_w);
DECLARE_WRITE_LINE_MEMBER(uint_w);
DECLARE_WRITE_LINE_MEMBER(uint_propagate_w);
DECLARE_READ8_MEMBER(adc_data_r);

6
src/mame/machine/balsente.cpp
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@ -327,6 +327,12 @@ WRITE8_MEMBER(balsente_state::novram_8bit_w)
*
*************************************/
WRITE8_MEMBER(balsente_state::acia_w)
{
// Ugly workaround: suppress soft reset command in order to avert race condition
m_acia->write(space, offset, (BIT(offset, 0) && data == 0xe0) ? 0 : data);
}
WRITE_LINE_MEMBER(balsente_state::uint_w)
{
m_uint = bool(state);