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misc small update

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This commit is contained in:
Michaël Banaan Ananas 2013-05-20 18:59:31 +00:00
parent 4b79d68e85
commit b2e3b2a202
1 changed files with 22 additions and 52 deletions
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74
src/mame/drivers/stuntair.c
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@ -3,13 +3,10 @@
Stunt Air by Nuova Videotron 1983
driver todo: (SOME OF THIS WILL NEED PCB REFERENCES / MEASUREMENTS)
- correct colour PROM decoding (resistor values?)
- correct FG colour handling (currently use a hardcoded white)
- correct sound (need interrupt frequencies at least)
- correct remaining GFX / sprite issues (flicker sometimes, might need better vblank timing?)
- clean up input ports (identify unknown dips, unused ports)
- clean up driver
@ -98,7 +95,7 @@ public:
m_sprram(*this, "sprram")
{
m_bg_xscroll = 0;
m_nmienable = 0;
m_nmi_enable = 0;
m_spritebank0 = 0;
m_spritebank1 = 0;
}
@ -114,10 +111,9 @@ public:
tilemap_t *m_bg_tilemap;
UINT8 m_bg_xscroll;
UINT8 m_nmienable;
UINT8 m_nmi_enable;
UINT8 m_spritebank0;
UINT8 m_spritebank1;
UINT8 m_soundlatch;
DECLARE_WRITE8_MEMBER(stuntair_fgram_w);
TILE_GET_INFO_MEMBER(get_stuntair_fg_tile_info);
@ -128,30 +124,25 @@ public:
DECLARE_WRITE8_MEMBER(stuntair_bgxscroll_w);
DECLARE_WRITE8_MEMBER(stuntair_unk_w)
{
printf("unk %02x\n", data);
}
DECLARE_WRITE8_MEMBER(stuntair_f001_w)
DECLARE_WRITE8_MEMBER(stuntair_nmienable_w)
{
m_nmienable = data&0x01; // guess
if (data&~0x01) printf("stuntair_f001_w %02x\n", data);
m_nmi_enable = data&0x01;
if (!m_nmi_enable)
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
// other bits are unused
}
DECLARE_WRITE8_MEMBER(stuntair_spritebank0_w)
{
m_spritebank0 = data&0x01;
if (data&~0x01) printf("stuntair_spritebank0_w %02x\n", data);
// other bits are unused
}
DECLARE_WRITE8_MEMBER(stuntair_spritebank1_w)
{
m_spritebank1 = data&0x01;
if (data&~0x01) printf("stuntair_spritebank1_w %02x\n", data);
// other bits are unused
}
DECLARE_WRITE8_MEMBER(stuntair_coin_w)
@ -167,24 +158,13 @@ public:
DECLARE_WRITE8_MEMBER(stuntair_sound_w)
{
m_soundlatch = data;
soundlatch_byte_w(space, 0, data);
m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
}
INTERRUPT_GEN_MEMBER(stuntair_irq);
INTERRUPT_GEN_MEMBER(stuntair_sound_irq)
{
m_audiocpu->set_input_line(0, HOLD_LINE);
}
DECLARE_READ8_MEMBER(ay8910_soundlatch_r)
{
return m_soundlatch;
}
DECLARE_WRITE8_MEMBER(ay8910_portb_w)
{
// it writes $e8 and $f0 for music drums
@ -210,7 +190,7 @@ static ADDRESS_MAP_START( stuntair_map, AS_PROGRAM, 8, stuntair_state )
AM_RANGE(0xe800, 0xe800) AM_READ_PORT("DSWA") AM_WRITE(stuntair_bgxscroll_w)
AM_RANGE(0xf000, 0xf000) AM_READ_PORT("IN2")
AM_RANGE(0xf001, 0xf001) AM_WRITE(stuntair_f001_w) // might be nmi enable
AM_RANGE(0xf001, 0xf001) AM_WRITE(stuntair_nmienable_w)
AM_RANGE(0xf002, 0xf002) AM_READ_PORT("IN3")
AM_RANGE(0xf003, 0xf003) AM_READNOP AM_WRITE(stuntair_spritebank1_w)
// AM_RANGE(0xf004, 0xf004) AM_WRITENOP
@ -264,7 +244,7 @@ static INPUT_PORTS_START( stuntair )
PORT_DIPSETTING( 0x81, "5" )
PORT_START("DSWA") // the bit order is scrambled, not sure if the dip locations are correct
PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x10, "SWA:1" ) // coin related? $05c7
PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x10, "SWA:1" ) // test related? $05c7
PORT_DIPNAME( 0x28, 0x08, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SWA:2,3") // $298f
PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x08, DEF_STR( Normal ) )
@ -281,12 +261,8 @@ static INPUT_PORTS_START( stuntair )
PORT_START("IN2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_DIPNAME( 0x04, 0x04, "IN2:2" )
PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, "IN2:3" )
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )
@ -300,15 +276,9 @@ static INPUT_PORTS_START( stuntair )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_DIPNAME( 0x20, 0x20, "IN3:5" )
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x40, "IN3:6" )
PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x80, 0x80, "IN3:7" )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END
static const gfx_layout tiles8x8_layout =
@ -454,8 +424,8 @@ UINT32 stuntair_state::screen_update_stuntair(screen_device &screen, bitmap_ind1
INTERRUPT_GEN_MEMBER(stuntair_state::stuntair_irq)
{
if(m_nmienable)
m_maincpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE);
if(m_nmi_enable)
m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
@ -466,7 +436,7 @@ static const ay8910_interface ay8910_config =
{
AY8910_LEGACY_OUTPUT,
AY8910_DEFAULT_LOADS,
DEVCB_DRIVER_MEMBER(stuntair_state,ay8910_soundlatch_r),
DEVCB_DRIVER_MEMBER(driver_device, soundlatch_byte_r),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DRIVER_MEMBER(stuntair_state,ay8910_portb_w)
@ -514,12 +484,12 @@ static MACHINE_CONFIG_START( stuntair, stuntair_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, XTAL_18_432MHz/6) /* 3 MHz? */
MCFG_CPU_PROGRAM_MAP(stuntair_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", stuntair_state, stuntair_irq)
MCFG_CPU_VBLANK_INT_DRIVER("screen", stuntair_state, stuntair_irq)
MCFG_CPU_ADD("audiocpu", Z80, XTAL_18_432MHz/6) /* 3 MHz? */
MCFG_CPU_PROGRAM_MAP(stuntair_sound_map)
MCFG_CPU_IO_MAP(stuntair_sound_portmap)
MCFG_CPU_PERIODIC_INT_DRIVER(stuntair_state, stuntair_sound_irq, 60*8) // guessed, probably wrong ?? drives music tempo..
MCFG_CPU_PERIODIC_INT_DRIVER(stuntair_state, irq0_line_hold, 60*8) // timing guessed, probably wrong ?? drives music tempo.. and where is irq ack?
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)