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Added preliminary coin latches for PT Reach Mahjong.

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=========================================================================================

Any help here is appreciated, I don't know why the gameplay looks pretty much broken,
i8085a irq bug?
This commit is contained in:
Angelo Salese 2009-05-04 01:21:50 +00:00
parent e1e3de7f68
commit 6d6f31b9b1
1 changed files with 26 additions and 18 deletions
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44
src/mame/drivers/m14.c
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@ -1,15 +1,15 @@
/***************************************************************************
/********************************************************************************************
M14 Hardware (c) 1979 Irem
driver by Angelo Salese
TODO:
- Inputs / Outputs;
- Check if the coin latch are correct and understand why the proper gameplay looks stiff;
- Sound (very likely to be discrete);
- What are the high 4 bits in the colorram for?
- What are the high 4 bits in the colorram for? They are used on the tiles only, left-over?
============================================================================
==============================================================================================
x (Mystery Rom)
(c)1978-1981? Irem?
PCB No. :M14S-2
@ -36,7 +36,7 @@ http://japump.i.am/
Dumped by Chackn
01/30/2000
***************************************************************************/
********************************************************************************************/
#include "driver.h"
#include "cpu/i8085/i8085.h"
@ -73,7 +73,7 @@ VIDEO_UPDATE( m14 )
static READ8_HANDLER( m14_rng_r )
{
/* graphic artifacts happens if this doesn't return random values. */
return (mame_rand(space->machine) & 0x3f) | (input_port_read(space->machine, "IN2") & 0xc0);
return mame_rand(space->machine);
}
static WRITE8_HANDLER( test_w )
@ -101,8 +101,20 @@ static ADDRESS_MAP_START( m14_io_map, ADDRESS_SPACE_IO, 8 )
AM_RANGE(0xf8, 0xfc) AM_WRITE(test_w)
ADDRESS_MAP_END
static INPUT_CHANGED( left_coin_inserted )
{
/* left coin insertion causes a rst6.5 (vector 0x34) */
cputag_set_input_line(field->port->machine, "maincpu", I8085_RST65_LINE, newval ? ASSERT_LINE : CLEAR_LINE);
}
static INPUT_CHANGED( right_coin_inserted )
{
/* right coin insertion causes a rst5.5 (vector 0x2c) */
cputag_set_input_line(field->port->machine, "maincpu", I8085_RST55_LINE, newval ? ASSERT_LINE : CLEAR_LINE);
}
static INPUT_PORTS_START( m14 )
PORT_START("IN0")
PORT_START("IN0") // paddle?
PORT_DIPNAME( 0x01, 0x00, "IN0" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x01, DEF_STR( On ) )
@ -135,7 +147,7 @@ static INPUT_PORTS_START( m14 )
PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x02, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) //affects the medal settings
PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) //this affects the medal settings
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x04, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
@ -154,16 +166,8 @@ static INPUT_PORTS_START( m14 )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START("IN2")
PORT_DIPNAME( 0x40, 0x00, "IN2" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START("IN3")
PORT_DIPNAME( 0x01, 0x00, "Show available tiles" ) // interpret it as a difficulty setting
PORT_START("IN3") //this whole port is stored at work ram $2112.
PORT_DIPNAME( 0x01, 0x00, "Show available tiles" ) // debug mode for the rng?
PORT_DIPSETTING( 0x00, DEF_STR( No ) )
PORT_DIPSETTING( 0x01, DEF_STR( Yes ) )
PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
@ -187,6 +191,10 @@ static INPUT_PORTS_START( m14 )
PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x80, DEF_STR( On ) )
PORT_START("FAKE")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_IMPULSE(1) PORT_CHANGED(left_coin_inserted, 0)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 ) PORT_IMPULSE(1) PORT_CHANGED(right_coin_inserted, 0)
INPUT_PORTS_END
static const gfx_layout charlayout =