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MT #00148 (nw)

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This commit is contained in:
Angelo Salese 2019-07-30 15:54:24 +02:00
parent 8d37f3a778
commit 962f30ccd4
1 changed files with 6 additions and 2 deletions
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8
src/mame/machine/namcoio.cpp
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@ -253,8 +253,12 @@ void namcoio_device::handle_coins( int swap )
IORAM_WRITE(0 ^ swap, m_credits / 10); // BCD credits
IORAM_WRITE(1 ^ swap, m_credits % 10); // BCD credits
IORAM_WRITE(2 ^ swap, credit_add); // credit increment (coin inputs)
IORAM_WRITE(3 ^ swap, credit_sub); // credit decrement (start buttons)
// these two are cleared by the host CPU in handshake fashion
// tower of druaga cares and won't give coin sound on 0->1 credit counter transition otherwise.
if (credit_add)
IORAM_WRITE(2 ^ swap, credit_add); // credit increment (coin inputs)
if (credit_sub)
IORAM_WRITE(3 ^ swap, credit_sub); // credit decrement (start buttons)
IORAM_WRITE(4, ~m_in_cb[1](0 & 0x0f)); // pins 22-25
button = ((val & 0x05) << 1) | (val & toggled & 0x05);
IORAM_WRITE(5, button); // pins 30 & 32 normal and impulse