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// license:BSD-3-Clause
// copyright-holders:hap
/***************************************************************************
GI PIC16xx-driven dedicated handhelds or other simple devices.
known chips:
serial device etc.
-----------------------------------------------------------
@036 1655A 1979, Ideal Maniac
*110 1650A 1979, Tiger Rocket Pinball
*192 1650 19??, (a phone dialer, have dump)
*255 1655 19??, (a talking clock, have dump)
(* denotes not yet emulated by MESS, @ denotes it's in this driver)
TODO:
- it doesn't work, emu/cpu/pic16c5x needs some love (dev note: hack to make it
playable: remove the TRIS masks)
***************************************************************************/
#include "emu.h"
#include "cpu/pic16c5x/pic16c5x.h"
#include "sound/speaker.h"
#include "maniac.lh"
class hh_pic16_state : public driver_device
{
public:
hh_pic16_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_inp_matrix(*this, "IN"),
m_speaker(*this, "speaker"),
m_display_wait(33),
m_display_maxy(1),
m_display_maxx(0)
{ }
// devices
required_device<cpu_device> m_maincpu;
optional_ioport_array<2> m_inp_matrix; // max 2
optional_device<speaker_sound_device> m_speaker;
// misc common
UINT8 m_b; // MCU port B data
UINT8 m_c; // MCU port C data
virtual void machine_start();
// display common
int m_display_wait; // led/lamp off-delay in microseconds (default 33ms)
int m_display_maxy; // display matrix number of rows
int m_display_maxx; // display matrix number of columns
UINT32 m_display_state[0x20]; // display matrix rows data
UINT16 m_display_segmask[0x20]; // if not 0, display matrix row is a digit, mask indicates connected segments
UINT32 m_display_cache[0x20]; // (internal use)
UINT8 m_display_decay[0x20][0x20]; // (internal use)
TIMER_DEVICE_CALLBACK_MEMBER(display_decay_tick);
void display_update();
void display_matrix(int maxx, int maxy, UINT32 setx, UINT32 sety);
// game-specific handlers
DECLARE_WRITE8_MEMBER(maniac_output_w);
};
void hh_pic16_state::machine_start()
{
// zerofill
memset(m_display_state, 0, sizeof(m_display_state));
memset(m_display_cache, ~0, sizeof(m_display_cache));
memset(m_display_decay, 0, sizeof(m_display_decay));
memset(m_display_segmask, 0, sizeof(m_display_segmask));
m_b = 0;
m_c = 0;
// register for savestates
save_item(NAME(m_display_maxy));
save_item(NAME(m_display_maxx));
save_item(NAME(m_display_wait));
save_item(NAME(m_display_state));
/* save_item(NAME(m_display_cache)); */ // don't save!
save_item(NAME(m_display_decay));
save_item(NAME(m_display_segmask));
save_item(NAME(m_b));
save_item(NAME(m_c));
}
/***************************************************************************
Helper Functions
***************************************************************************/
// The device may strobe the outputs very fast, it is unnoticeable to the user.
// To prevent flickering here, we need to simulate a decay.
void hh_pic16_state::display_update()
{
UINT32 active_state[0x20];
for (int y = 0; y < m_display_maxy; y++)
{
active_state[y] = 0;
for (int x = 0; x < m_display_maxx; x++)
{
// turn on powered segments
if (m_display_state[y] >> x & 1)
m_display_decay[y][x] = m_display_wait;
// determine active state
int ds = (m_display_decay[y][x] != 0) ? 1 : 0;
active_state[y] |= (ds << x);
}
}
// on difference, send to output
for (int y = 0; y < m_display_maxy; y++)
if (m_display_cache[y] != active_state[y])
{
if (m_display_segmask[y] != 0)
output_set_digit_value(y, active_state[y] & m_display_segmask[y]);
const int mul = (m_display_maxx <= 10) ? 10 : 100;
for (int x = 0; x < m_display_maxx; x++)
output_set_lamp_value(y * mul + x, active_state[y] >> x & 1);
}
memcpy(m_display_cache, active_state, sizeof(m_display_cache));
}
TIMER_DEVICE_CALLBACK_MEMBER(hh_pic16_state::display_decay_tick)
{
// slowly turn off unpowered segments
for (int y = 0; y < m_display_maxy; y++)
for (int x = 0; x < m_display_maxx; x++)
if (m_display_decay[y][x] != 0)
m_display_decay[y][x]--;
display_update();
}
void hh_pic16_state::display_matrix(int maxx, int maxy, UINT32 setx, UINT32 sety)
{
m_display_maxx = maxx;
m_display_maxy = maxy;
// update current state
UINT32 mask = (1 << maxx) - 1;
for (int y = 0; y < maxy; y++)
m_display_state[y] = (sety >> y & 1) ? (setx & mask) : 0;
display_update();
}
/***************************************************************************
Minidrivers (I/O, Inputs, Machine Config)
***************************************************************************/
/***************************************************************************
Ideal Maniac, by Ralph Baer
* PIC1655A-036
***************************************************************************/
WRITE8_MEMBER(hh_pic16_state::maniac_output_w)
{
// B,C: outputs
offset -= PIC16C5x_PORTB;
if (offset)
m_c = data;
else
m_b = data;
// d7: speaker out
m_speaker->level_w((m_b >> 7 & 1) | (m_c >> 6 & 2));
// d0-d6: 7seg
m_display_maxx = 7;
m_display_maxy = 2;
m_display_segmask[offset] = 0x7f;
m_display_state[offset] = ~data & 0x7f;
display_update();
}
static INPUT_PORTS_START( maniac )
PORT_START("IN.0") // port A
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) // bottom-right
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) // upper-right
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON3 ) // bottom-left
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) // upper-left
INPUT_PORTS_END
static const INT16 maniac_speaker_levels[] = { 0, 32767, -32768, 0 };
static MACHINE_CONFIG_START( maniac, hh_pic16_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", PIC16C55, 850000) // RC osc. R=13.4K, C=470pf, but unknown RC curve - measured 800-890kHz
MCFG_PIC16C5x_READ_A_CB(IOPORT("IN.0"))
MCFG_PIC16C5x_WRITE_B_CB(WRITE8(hh_pic16_state, maniac_output_w))
MCFG_PIC16C5x_WRITE_C_CB(WRITE8(hh_pic16_state, maniac_output_w))
MCFG_PIC16C5x_SET_CONFIG(0) // ?
MCFG_TIMER_DRIVER_ADD_PERIODIC("display_decay", hh_pic16_state, display_decay_tick, attotime::from_msec(1))
MCFG_DEFAULT_LAYOUT(layout_maniac)
/* no video! */
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0)
MCFG_SPEAKER_LEVELS(4, maniac_speaker_levels)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
MACHINE_CONFIG_END
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( maniac )
ROM_REGION( 0x0800, "maincpu", 0 )
ROM_LOAD( "pic1655a-036", 0x0000, 0x0400, CRC(a96f7011) SHA1(e97ae44d3c1e74c7e1024bb0bdab03eecdc9f827) )
ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY, FULLNAME, FLAGS */
CONS( 1979, maniac, 0, 0, maniac, maniac, driver_device, 0, "Ideal", "Maniac", GAME_SUPPORTS_SAVE | GAME_NOT_WORKING )
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