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neogeo.cpp: re-add boost interleave on audio command write - fixes glitches in s1945p (nw)

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This commit is contained in:
Vas Crabb 2018-04-23 03:48:42 +10:00
parent ab71d889fb
commit 3306c9fb4d
2 changed files with 10 additions and 1 deletions
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10
src/mame/drivers/neogeo.cpp
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@ -946,6 +946,14 @@ WRITE8_MEMBER(mvs_state::io_control_w)
}
WRITE8_MEMBER(neogeo_base_state::audio_command_w)
{
// glitches in s1945p without the boost_interleave here
m_soundlatch->write(space, offset, data, mem_mask);
machine().scheduler().boost_interleave(attotime::zero, attotime::from_usec(50));
}
/*************************************
*
* Unmapped memory access
@ -1665,7 +1673,7 @@ READ16_MEMBER(neogeo_base_state::banked_vectors_r)
void neogeo_base_state::base_main_map(address_map &map)
{
map(0x320000, 0x320000).mirror(0x01fffe).w(m_soundlatch, FUNC(generic_latch_8_device::write));
map(0x320000, 0x320000).mirror(0x01fffe).w(this, FUNC(neogeo_base_state::audio_command_w));
map(0x360000, 0x37ffff).r(this, FUNC(neogeo_base_state::unmapped_r));
map(0x380000, 0x3800ff).mirror(0x01ff00).w(this, FUNC(neogeo_base_state::io_control_w)).umask16(0x00ff);
map(0x3a0000, 0x3a001f).mirror(0x01ffe0).r(this, FUNC(neogeo_base_state::unmapped_r));

1
src/mame/includes/neogeo.h
View File

@ -84,6 +84,7 @@ protected:
uint32_t screen_update_neogeo(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
virtual DECLARE_WRITE8_MEMBER(io_control_w);
DECLARE_WRITE8_MEMBER(audio_command_w);
DECLARE_WRITE_LINE_MEMBER(set_use_cart_vectors);
DECLARE_WRITE_LINE_MEMBER(set_use_cart_audio);
DECLARE_READ16_MEMBER(banked_vectors_r);