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konami/hornet: Fixed regression causing Teraburst's gun I/O to fail boot test. (#10637)

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987123879113 2022-12-04 22:20:24 +09:00 committed by GitHub
parent 9a3701a334
commit 5412d5e89a
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1 changed files with 12 additions and 2 deletions
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14
src/mame/konami/hornet.cpp
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@ -469,6 +469,7 @@ private:
uint16_t m_gn680_ret0;
uint16_t m_gn680_ret1;
uint16_t m_gn680_check;
uint16_t m_gn680_reg0e;
bool m_sndres;
@ -743,7 +744,8 @@ uint16_t hornet_state::gun_r(offs_t offset)
// TODO: Replace this with proper emulation of a CCD camera
// so the GN680's program can handle inputs normally.
if (offset == 0 || offset == 1)
// TODO: Check if this works when skip post is disabled (currently causes game to boot loop)
if (m_gn680_reg0e == 0 && (offset == 0 || offset == 1))
{
// All values are offset so that the range in-game is
// +/- 280 on the X and +/- 220 on the Y axis.
@ -783,7 +785,10 @@ uint16_t hornet_state::gun_r(offs_t offset)
}
else
{
r = m_gn680_ret0<<16 | m_gn680_ret1;
if (offset == 0)
r = m_gn680_ret0;
else if (offset == 1)
r = m_gn680_ret1;
}
return r;
@ -796,6 +801,11 @@ void hornet_state::gun_w(offs_t offset, uint16_t data)
m_gn680_latch = data;
m_gn680->set_input_line(M68K_IRQ_6, HOLD_LINE);
}
else if (offset == 0x0e/2)
{
// Always set to 0 when reading the gun inputs
m_gn680_reg0e = data;
}
}
/******************************************************************/