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m14.cpp: cleanups (nw)

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This commit is contained in:
angelosa 2017-06-26 08:40:55 +02:00
parent 589198d87e
commit 7cd2929525
1 changed files with 16 additions and 32 deletions
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48
src/mame/drivers/m14.cpp
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@ -7,19 +7,18 @@ M14 Hardware (c) 1979 Irem
driver by Angelo Salese
TODO:
- Sound (very likely to be discrete);
- Actual discrete sound emulation;
- Colors might be not 100% accurate (needs screenshots from the real thing);
- What are the high 4 bits in the colorram for? They are used on the mahjong tiles only,
left-over or something more important?
- I'm not sure about the hopper hook-up, it could also be that the player should press
start + button 1 + ron buttons (= 0x43) instead of being "automatic";
- Inputs are grossly mapped;
- I/Os are grossly mapped;
- ball and paddle drawing are a guesswork;
Notes:
- Unlike most Arcade games, if you call a ron but you don't have a legit hand you'll automatically
lose the match. This is commonly named chombo in rii'chi mahjong rules;
- After getting a completed hand, press start 1 + ron + discard at the same time to go back
into attract mode (!);
==============================================================================================
x (Mystery Rom)
@ -82,8 +81,7 @@ public:
DECLARE_WRITE8_MEMBER(m14_vram_w);
DECLARE_WRITE8_MEMBER(m14_cram_w);
DECLARE_READ8_MEMBER(m14_rng_r);
DECLARE_READ8_MEMBER(input_buttons_r);
DECLARE_WRITE8_MEMBER(hopper_w);
DECLARE_WRITE8_MEMBER(output_w);
DECLARE_WRITE8_MEMBER(ball_x_w);
DECLARE_WRITE8_MEMBER(ball_y_w);
DECLARE_WRITE8_MEMBER(paddle_x_w);
@ -106,7 +104,7 @@ private:
tilemap_t *m_m14_tilemap;
/* input-related */
uint8_t m_hop_mux;
//uint8_t m_hop_mux;
uint8_t m_ballx,m_bally;
uint8_t m_paddlex;
};
@ -225,24 +223,12 @@ READ8_MEMBER(m14_state::m14_rng_r)
return (m_screen->frame_number() & 0x7f) | (ioport("IN1")->read() & 0x80);
}
/* Here routes the hopper & the inputs */
READ8_MEMBER(m14_state::input_buttons_r)
WRITE8_MEMBER(m14_state::output_w)
{
if (m_hop_mux)
{
m_hop_mux = 0;
return 0; //0x43 status bits
}
else
return ioport("IN0")->read();
}
WRITE8_MEMBER(m14_state::hopper_w)
{
/* ---- x--- coin out */
/* ---- --x- hopper/input mux? */
/* ---- x--- active after calling a winning hand */
/* ---- --x- lamp? */
/* ---- ---x flip screen */
m_hop_mux = data & 2;
//m_hop_mux = data & 2;
flip_screen_set(data & 1);
//popmessage("%02x",data);
}
@ -321,9 +307,9 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( m14_io_map, AS_IO, 8, m14_state )
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0xf8, 0xf8) AM_READ_PORT("AN_PADDLE") AM_WRITE(ball_x_w)
AM_RANGE(0xf9, 0xf9) AM_READ(input_buttons_r) AM_WRITE(ball_y_w)
AM_RANGE(0xf9, 0xf9) AM_READ_PORT("IN0") AM_WRITE(ball_y_w)
AM_RANGE(0xfa, 0xfa) AM_READ(m14_rng_r) AM_WRITE(paddle_x_w)
AM_RANGE(0xfb, 0xfb) AM_READ_PORT("DSW") AM_WRITE(hopper_w)
AM_RANGE(0xfb, 0xfb) AM_READ_PORT("DSW") AM_WRITE(output_w)
AM_RANGE(0xfc, 0xfc) AM_WRITE(sound_w)
ADDRESS_MAP_END
@ -349,7 +335,7 @@ INPUT_CHANGED_MEMBER(m14_state::right_coin_inserted)
static INPUT_PORTS_START( m14 )
PORT_START("AN_PADDLE")
PORT_BIT( 0xff, 0x00, IPT_PADDLE ) PORT_MINMAX(0,0xff) PORT_SENSITIVITY(5) PORT_KEYDELTA(1) PORT_CENTERDELTA(0) PORT_REVERSE
PORT_BIT( 0xff, 0x00, IPT_PADDLE ) PORT_MINMAX(0,0xff) PORT_SENSITIVITY(10) PORT_KEYDELTA(10) PORT_CENTERDELTA(0) PORT_REVERSE
PORT_START("IN0")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("P1 Fire / Discard")
@ -363,9 +349,7 @@ static INPUT_PORTS_START( m14 )
PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x20, 0x20, "Freeze" )
PORT_DIPSETTING( 0x20, DEF_STR( No ) )
PORT_DIPSETTING( 0x00, DEF_STR( Yes ) )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_CUSTOM ) PORT_VBLANK("screen")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
@ -428,7 +412,7 @@ INTERRUPT_GEN_MEMBER(m14_state::m14_irq)
void m14_state::machine_start()
{
save_item(NAME(m_hop_mux));
//save_item(NAME(m_hop_mux));
save_item(NAME(m_ballx));
save_item(NAME(m_bally));
save_item(NAME(m_paddlex));
@ -436,7 +420,7 @@ void m14_state::machine_start()
void m14_state::machine_reset()
{
m_hop_mux = 0;
//m_hop_mux = 0;
}