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greatgur MCU doesn't like impulse coins, add hack to simulated sets to make them work with non-impulse coins (nw)

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This commit is contained in:
Vas Crabb 2017-01-07 03:04:11 +11:00
parent 9ccfcffb1a
commit 13401dadfb
2 changed files with 39 additions and 15 deletions
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50
src/mame/drivers/gladiatr.cpp
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@ -208,31 +208,45 @@ WRITE8_MEMBER(gladiatr_state::gladiatr_bankswitch_w)
} }
READ8_MEMBER(gladiatr_state::gladiator_dsw1_r ) READ8_MEMBER(gladiatr_state::gladiator_dsw1_r)
{ {
return BITSWAP8(~m_dsw1->read(), 0,1,2,3,4,5,6,7); return BITSWAP8(~m_dsw1->read(), 0,1,2,3,4,5,6,7);
} }
READ8_MEMBER(gladiatr_state::gladiator_dsw2_r ) READ8_MEMBER(gladiatr_state::gladiator_dsw2_r)
{ {
return BITSWAP8(~m_dsw2->read(), 2,3,4,5,6,7,1,0); return BITSWAP8(~m_dsw2->read(), 2,3,4,5,6,7,1,0);
} }
READ8_MEMBER(gladiatr_state::gladiator_controls_r ) READ8_MEMBER(gladiatr_state::gladiator_controls_r)
{ {
u8 const coins = (~m_coins->read() & 0x07) ? 0x80 : 0x00; // hack to simulate the way the MCUs counts edges on coin inputs
u8 const coins = ~m_coins->read() & 0x07;
u8 const changed = (m_coins_val ^ coins) & coins;
m_credits += 2 * (BIT(changed, 0) + BIT(changed, 1) + BIT(changed, 2));
m_coins_val = coins;
u8 result = 0;
switch(offset) switch(offset)
{ {
case 0x01: // start button , coins case 0x01: // start button, coins
return ((~m_in0->read() >> 6) & 0x03) | coins; result = (~m_in0->read() >> 6) & 0x03;
case 0x02: // Player 1 Controller , coins break;
return (~m_in0->read() & 0x3f) | coins; case 0x02: // Player 1 Controller , coins
case 0x04: // Player 2 Controller , coins result = ~m_in0->read() & 0x3f;
return (~m_in1->read() & 0x3f) | coins; break;
case 0x04: // Player 2 Controller , coins
result = ~m_in1->read() & 0x3f;
break;
default: // unknown
return 0;
} }
// unknown if (m_credits)
return 0; {
result |= 0x80;
--m_credits;
}
return result;
} }
READ8_MEMBER(gladiatr_state::gladiator_button3_r) READ8_MEMBER(gladiatr_state::gladiator_button3_r)
@ -705,9 +719,9 @@ static INPUT_PORTS_START( gladiatr )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_COCKTAIL PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_COCKTAIL
PORT_START("COINS") // ccpu test, cctl test PORT_START("COINS") // ccpu test, cctl test
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(1) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(1) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_IMPULSE(1) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END INPUT_PORTS_END
@ -1188,6 +1202,12 @@ DRIVER_INIT_MEMBER(gladiatr_state,gladiatr)
/* make sure bank is valid in cpu-reset */ /* make sure bank is valid in cpu-reset */
membank("bank2")->set_entry(0); membank("bank2")->set_entry(0);
m_coins_val = 0x00;
m_credits = 0;
save_item(NAME(m_coins_val));
save_item(NAME(m_credits));
m_tclk_val = false; m_tclk_val = false;
m_in0_val = 0xff; m_in0_val = 0xff;
m_in1_val = 0xff; m_in1_val = 0xff;

4
src/mame/includes/gladiatr.h
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@ -82,6 +82,8 @@ public:
, m_in1(*this, "IN1") , m_in1(*this, "IN1")
, m_in2(*this, "IN2") , m_in2(*this, "IN2")
, m_coins(*this, "COINS") , m_coins(*this, "COINS")
, m_coins_val(0x00)
, m_credits(0)
, m_tclk_val(false) , m_tclk_val(false)
, m_in0_val(0xff) , m_in0_val(0xff)
, m_in1_val(0xff) , m_in1_val(0xff)
@ -141,6 +143,8 @@ private:
required_ioport m_in0, m_in1, m_in2; required_ioport m_in0, m_in1, m_in2;
required_ioport m_coins; required_ioport m_coins;
u8 m_coins_val, m_credits;
bool m_tclk_val; bool m_tclk_val;
u8 m_in0_val, m_in1_val; u8 m_in0_val, m_in1_val;
u8 m_cctl_p1, m_cctl_p2; u8 m_cctl_p1, m_cctl_p2;