Est ce que ce ne serait pas la doc d'une version stick only ?
Car dans les drivers de mame , sur le 8 du DIP1, tu choisis le mode
static INPUT_PORTS_START( searchar )
PORT_START("P1") /* Player 1 controls */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START1 )
PORT_START("P2") /* Player 2 controls */
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
PORT_START("SYSTEM")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_SERVICE ) /* same as the service mode dsw */
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("DSW1")
PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_DIPNAME( 0x0100, 0x0000, DEF_STR( Joystick ) ) PORT_DIPLOCATION("SW1:!8")
PORT_DIPSETTING( 0x0000, "Rotary Joystick" )
PORT_DIPSETTING( 0x0100, "Standard Joystick" )
PORT_DIPNAME( 0x0200, 0x0000, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW1:!7")
PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0200, DEF_STR( On ) )
PORT_DIPNAME( 0x0c00, 0x0000, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:!6,!5")
PORT_DIPSETTING( 0x0800, "2" )
PORT_DIPSETTING( 0x0000, "3" )
PORT_DIPSETTING( 0x0400, "4" )
PORT_DIPSETTING( 0x0c00, "5" )
PORT_DIPNAME( 0x3000, 0x0000, "Coin A & B" ) PORT_DIPLOCATION("SW1:!4,!3")
PORT_DIPSETTING( 0x2000, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x0000, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x1000, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x3000, DEF_STR( Free_Play ) )
PORT_DIPNAME( 0x4000, 0x0000, "Bonus Occurrence" ) PORT_DIPLOCATION("SW1:!2")
PORT_DIPSETTING( 0x0000, "1st & 2nd only" )
PORT_DIPSETTING( 0x4000, "1st & every 2nd" )
PORT_DIPNAME( 0x8000, 0x0000, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:!1")
PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
PORT_DIPSETTING( 0x8000, DEF_STR( On ) )
PORT_START("DSW2")
PORT_BIT( 0x00ff, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_SERVICE_DIPLOC( 0x0100, IP_ACTIVE_HIGH, "SW2:!8" )
PORT_DIPNAME( 0x0200, 0x0000, DEF_STR( Allow_Continue ) ) PORT_DIPLOCATION("SW2:!7")
PORT_DIPSETTING( 0x0200, DEF_STR( No ) )
PORT_DIPSETTING( 0x0000, DEF_STR( Yes ) )
PORT_DIPNAME( 0x0c00, 0x0000, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:!6,!5")
PORT_DIPSETTING( 0x0000, "50k 200k" )
PORT_DIPSETTING( 0x0800, "70k 270k" )
PORT_DIPSETTING( 0x0400, "90k 350k" )
PORT_DIPSETTING( 0x0c00, DEF_STR( None ) )
PORT_DIPNAME( 0x3000, 0x0000, "Game Mode" ) PORT_DIPLOCATION("SW2:!4,!3")
PORT_DIPSETTING( 0x2000, "Demo Sounds Off" )
PORT_DIPSETTING( 0x0000, "Demo Sounds On" )
PORT_DIPSETTING( 0x3000, "Freeze" )
PORT_DIPSETTING( 0x1000, "Infinite Lives (Cheat)")
PORT_DIPNAME( 0xc000, 0x0000, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:!2,!1")
PORT_DIPSETTING( 0x8000, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x0000, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x4000, DEF_STR( Hard ) )
PORT_DIPSETTING( 0xc000, DEF_STR( Hardest ) )
PORT_START("ROT1") /* player 1 12-way rotary control */
PORT_BIT( 0x0f, 0x00, IPT_POSITIONAL ) PORT_POSITIONS(12) PORT_WRAPS PORT_SENSITIVITY(5) PORT_KEYDELTA(5) PORT_CODE_DEC(KEYCODE_Z) PORT_CODE_INC(KEYCODE_X) PORT_REVERSE PORT_FULL_TURN_COUNT(12)
PORT_START("ROT2") /* player 2 12-way rotary control */
PORT_BIT( 0x0f, 0x00, IPT_POSITIONAL ) PORT_POSITIONS(12) PORT_WRAPS PORT_SENSITIVITY(5) PORT_KEYDELTA(5) PORT_CODE_DEC(KEYCODE_N) PORT_CODE_INC(KEYCODE_M) PORT_PLAYER(2) PORT_REVERSE PORT_FULL_TURN_COUNT(12)
INPUT_PORTS_END