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vgmplay: workaround for 7759 md pin write

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This commit is contained in:
hap 2023-03-13 14:13:28 +01:00
parent 3bb3b0b65d
commit 41c4341eac
1 changed files with 15 additions and 4 deletions
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19
src/mame/virtual/vgmplay.cpp
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@ -430,6 +430,7 @@ public:
DECLARE_INPUT_CHANGED_MEMBER(key_pressed);
template<int Index> void upd7759_reset_w(uint8_t data);
template<int Index> void upd7759_start_w(uint8_t data);
template<int Index> void upd7759_data_w(uint8_t data);
template<int Index> DECLARE_WRITE_LINE_MEMBER(upd7759_drq_w);
template<int Index> void okim6258_clock_w(offs_t offset, uint8_t data, uint8_t mem_mask = ~0);
@ -2955,8 +2956,6 @@ QUICKLOAD_LOAD_MEMBER(vgmplay_state::load_file)
setup_device(*m_upd7759[1], 1, CT_UPD7759, 0x8c, 0x161);
m_upd7759_md[0] = r32(0x8c) & 0x80000000 ? 0 : 1;
m_upd7759_md[1] = r32(0x8c) & 0x80000000 ? 0 : 1;
m_upd7759[0]->md_w(m_upd7759_md[0]);
m_upd7759[1]->md_w(m_upd7759_md[1]);
setup_device(*m_okim6258[0], 0, CT_OKIM6258, 0x90, 0x161);
setup_device(*m_okim6258[1], 1, CT_OKIM6258, 0x90, 0x161);
@ -3124,6 +3123,18 @@ void vgmplay_state::upd7759_reset_w(uint8_t data)
}
}
template<int Index>
void vgmplay_state::upd7759_start_w(uint8_t data)
{
int start = data != 0;
// substitute ST with MD when in slave mode
if (m_upd7759_md[Index])
m_upd7759[Index]->start_w(start);
else
m_upd7759[Index]->md_w(!start);
}
template<int Index>
void vgmplay_state::upd7759_data_w(uint8_t data)
{
@ -3392,11 +3403,11 @@ void vgmplay_state::soundchips_map(address_map &map)
map(vgmplay_device::A_MULTIPCM_1 + 4, vgmplay_device::A_MULTIPCM_1 + 7).w("vgmplay", FUNC(vgmplay_device::multipcm_bank_hi_w<1>));
map(vgmplay_device::A_MULTIPCM_1 + 8, vgmplay_device::A_MULTIPCM_1 + 11).w("vgmplay", FUNC(vgmplay_device::multipcm_bank_lo_w<1>));
map(vgmplay_device::A_UPD7759_0 + 0, vgmplay_device::A_UPD7759_0 + 0).w(FUNC(vgmplay_state::upd7759_reset_w<0>));
map(vgmplay_device::A_UPD7759_0 + 1, vgmplay_device::A_UPD7759_0 + 1).lw8(NAME([this](uint8_t data) {m_upd7759[0]->start_w(data != 0); }));
map(vgmplay_device::A_UPD7759_0 + 1, vgmplay_device::A_UPD7759_0 + 1).w(FUNC(vgmplay_state::upd7759_start_w<0>));
map(vgmplay_device::A_UPD7759_0 + 2, vgmplay_device::A_UPD7759_0 + 2).w(FUNC(vgmplay_state::upd7759_data_w<0>));
map(vgmplay_device::A_UPD7759_0 + 3, vgmplay_device::A_UPD7759_0 + 3).w("vgmplay", FUNC(vgmplay_device::upd7759_bank_w<0>));
map(vgmplay_device::A_UPD7759_1 + 0, vgmplay_device::A_UPD7759_1 + 0).w(FUNC(vgmplay_state::upd7759_reset_w<1>));
map(vgmplay_device::A_UPD7759_1 + 1, vgmplay_device::A_UPD7759_1 + 1).lw8(NAME([this](uint8_t data) {m_upd7759[1]->start_w(data != 0); }));
map(vgmplay_device::A_UPD7759_1 + 1, vgmplay_device::A_UPD7759_1 + 1).w(FUNC(vgmplay_state::upd7759_start_w<1>));
map(vgmplay_device::A_UPD7759_1 + 2, vgmplay_device::A_UPD7759_1 + 2).w(FUNC(vgmplay_state::upd7759_data_w<1>));
map(vgmplay_device::A_UPD7759_1 + 3, vgmplay_device::A_UPD7759_1 + 3).w("vgmplay", FUNC(vgmplay_device::upd7759_bank_w<1>));
map(vgmplay_device::A_OKIM6258_0 + 0x0, vgmplay_device::A_OKIM6258_0 + 0x0).w(m_okim6258[0], FUNC(okim6258_device::ctrl_w));