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Truco-Tron: Cleaned up the driver and improved the documentation.

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This commit is contained in:
Roberto Fresca 2020-07-09 18:59:13 +02:00
parent 700d95e88f
commit 08c3310b4e
3 changed files with 104 additions and 129 deletions
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228
src/mame/drivers/truco.cpp
View File

@ -12,9 +12,7 @@
- The board uses a battery backed ram for protection, mapped at $7c00-$7fff.
- If the battery backup data is corrupt, it comes up with some sort of code entry screen.
As far as I can tell, you can't do anything with it.
- Replacing the battery backed ram with an eeprom is not really an option since the game stores the
current credits count in the battery backed ram.
- The game stores the current credits count in the battery backed ram.
- System clock is 12 Mhz. The CPU clock is unknown.
- The Alternate GFX mode is funky. Not only it has different bitmaps, but also the strings with the
game options are truncated. Title is also truncated.
@ -71,27 +69,27 @@
- U1 : 40-pin IC YES CPU MOTOROLA M6809EP 8-bit microprocessor.
- U2 : 28-pin IC YES ROM M27128A (or M27512FI) NMOS 128K 16K x 8 UV EPROM (or 64K x 8).
- U3 : 28-pin IC YES ROM M27128A (or M27512FI) NMOS 128K 16K x 8 UV EPROM (or 64K x 8).
- U4 : 40-pin IC YES I/O ST EF6821P PIA: Peripheral Interface Adapter.
- U5 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U6 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U7 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U8 : 16-pin IC YES TTL ST M74HC157B1 Quad 2 Channel Multiplexer.
- U9 : 40-pin IC YES CRTC HD6845 / UM6845 / GS GM68A45S CRT Controller.
- U10: 28-pin IC YES RAM KM62256BLP-10 32K x 8 Low Power CMOS Static RAM.
- U11: 14-pin IC YES TTL SN74LS95BN 4-bit Parallel-Access Shift Registers.
- U12: 14-pin IC YES TTL SN74LS95BN 4-bit Parallel-Access Shift Registers.
- U13: 20-pin IC YES TTL SN74LS244N Octal Buffers and Line Drivers with 3-State output.
- U14: 20-pin IC YES TTL HD74LS374 Octal D-type Flip-Flops with noninverted 3-state output.
- U4 : 40-pin IC YES I/O EF6821P PIA: Peripheral Interface Adapter.
- U5 : 16-pin IC YES TTL 74HC157 Quad 2 Channel Multiplexer.
- U6 : 16-pin IC YES TTL 74HC157 Quad 2 Channel Multiplexer.
- U7 : 16-pin IC YES TTL 74HC157 Quad 2 Channel Multiplexer.
- U8 : 16-pin IC YES TTL 74HC157 Quad 2 Channel Multiplexer.
- U9 : 40-pin IC YES CRTC HD6845 / UM6845 / GM68A45S CRT Controller.
- U10: 28-pin IC YES RAM 62256-10 32K x 8 Low Power CMOS Static RAM.
- U11: 14-pin IC YES TTL 74LS95 4-bit Parallel-Access Shift Registers.
- U12: 14-pin IC YES TTL 74LS95 4-bit Parallel-Access Shift Registers.
- U13: 20-pin IC YES TTL 74LS244 Octal Buffers and Line Drivers with 3-State output.
- U14: 20-pin IC YES TTL 74LS374 Octal D-type Flip-Flops with noninverted 3-state output.
- U15: 20-pin IC YES PLD PALCE16V8H-25 EE CMOS Zero-Power 20-Pin Universal Programmable Array Logic.
- U16: 20-pin IC YES PLD PALCE16V8H-25 EE CMOS Zero-Power 20-Pin Universal Programmable Array Logic.
- U17: 14-pin IC YES TTL HD74LS00P Quadruple 2-Input NAND Gates.
- U18: 14-pin IC YES TTL KS74HCTLS86N Quad 2???Input Exclusive OR Gate.
- U17: 14-pin IC YES TTL 74LS00 Quad 2-Input NAND Gates.
- U18: 14-pin IC YES TTL 74HCTLS86 Quad 2-Input XOR Gates.
- U19: 16-pin IC YES WATCHDOG MAXIM MAX691 Microprocessor Supervisory Circuits.
- U20: 16-pin IC YES DARLINGTON ULN2003 7 NPN Darlington transistor pairs with high voltage and current capability.
M6809
+---\/---+
.---\/---.
GND 1| |40 !HALT <--
--> !NMI 2| |39 ETAL <--
PIA /IRQA & B --> !IRQ 3| |38 EXTAL <--
@ -112,10 +110,10 @@
<-- A10 18| |23 A15 -->
<-- A11 19| |22 A14 -->
<-- A12 20| |21 A13 -->
+--------+
'--------'
PIA 6821
+----\/----+
.----\/----.
VSS |01 40| CA1 --- PIA CB1 (*)
JAMMA S17 (2P_ST) - PA0 |02 39| CA2 --- U19(11). Watchdog/RESET
JAMMA S14 (SRVSW) - PA1 |03 38| /IRQA - CPU M6809 !IRQ (03)
@ -136,7 +134,7 @@
PIA CA1 (*) - CB1 |18 23| /CS2
U20(06) - CB2 |19 22| CS0
VCC |20 21| R/W
+----------+
'----------'
(*) Lines CA1 and CB1 are tied together, being both IN.
They are connected to JAMMA C16 (COIN1).
@ -144,42 +142,35 @@
U19: *** MAX691 *** Maxim MAX691 Microprocessor Supervisory Circuit.
(for battery backup power switching and watchdog).
leg 01 [VBATT] ---->
leg 02 [VOUT] ----->
leg 03 [VCC] ------> VCC
leg 04 [GND] ------> GND
leg 05 [BATT ON] -->
leg 06 [/LOWLINE] ->
leg 07 [OSC IN] ---> N/C \ Set 1.6 seconds as WD timeout.
leg 08 [OSC SEL] --> N/C /
leg 09 [PFI] ------>
leg 10 [/PFO] ----->
leg 11 [WDI] ------> PIA CA2
leg 12 [/CE OUT] -->
leg 13 [/CE IN] ---> GND
leg 14 [/WDO] ----->
leg 15 [/RESET] ---> CPU /RES (37)
leg 16 [RESET] ---->
MAX691
.---\/---.
<----- [VBATT]--|01 16|--[PFI] ------>
<------ [VOUT]--|02 15|--[/PFO] ----->
VCC <------- [VCC]--|03 14|--[WDI] ------> PIA CA2
GND <------- [GND]--|04 13|--[/CE OUT] -->
<--- [BATT ON]--|05 12|--[/CE IN] ---> GND
<-- [/LOWLINE]--|06 11|--[/WDO] ----->
* N/C <---- [OSC IN]--|07 10|--[/RESET] ---> CPU /RES (37)
* N/C <--- [OSC SEL]--|08 09|--[RESET] ---->
'--------'
* Set 1.6 seconds as WD timeout.
U20: *** ULN2003 ***
U20: *** ULN2003 *** High-voltage, high-current Darlington transistor array.
leg 01 --> N/C
leg 02 --> N/C
leg 03 --> N/C
leg 04 --> PIA PB2 (12)
leg 05 --> PIA PB3 (13)
leg 06 --> PIA CB2 (19)
leg 07 --> PIA PB7 (17)
leg 08 --> GND
leg 09 --> VCC
leg 10 --> CAP --> JAMMA(S10) +Speaker
leg 11 --> JAMMA(S26)
leg 12 --> JAMMA(C08) Coin Counter 1
leg 13 --> JAMMA(S08) Coin Counter 2
leg 14 --> N/C
leg 15 --> N/C
leg 16 --> N/C
ULN2003
.---\/---.
N/C <--|01 16|--> N/C
N/C <--|02 15|--> N/C
N/C <--|03 14|--> N/C
PIA PB2 (12) <--|04 13|--> JAMMA(S08) Coin Counter 2
PIA PB3 (13) <--|05 12|--> JAMMA(C08) Coin Counter 1
PIA CB2 (19) <--|06 11|--> JAMMA(S26)
PIA PB7 (17) <--|07 10|--> CAP --> JAMMA(S10) +Speaker
GND <--|08 09|--> VCC
'--------'
JP1:
@ -201,6 +192,7 @@
*******************************************************************************************************/
#include "emu.h"
#include "includes/truco.h"
@ -212,9 +204,10 @@
#include "speaker.h"
#define MASTER_CLOCK XTAL(12'000'000) /* confirmed */
#define CPU_CLOCK (MASTER_CLOCK/16) /* guess */
#define CRTC_CLOCK (MASTER_CLOCK/8) /* guess */
#define MASTER_CLOCK XTAL(12'000'000) // confirmed
#define CPU_CLOCK (MASTER_CLOCK/16) // guess
#define CRTC_CLOCK (MASTER_CLOCK/8) // guess
/*******************************************
* Read/Write Handlers *
@ -240,7 +233,7 @@ WRITE_LINE_MEMBER(truco_state::pia_ca2_w)
void truco_state::portb_w(uint8_t data)
{
m_dac->write(BIT(data, 7)); /* Isolated the bit for Delta-Sigma DAC */
m_dac->write(BIT(data, 7)); // Isolated the bit for Delta-Sigma DAC
if (data & 0x7f)
logerror("Port B writes: %2x\n", data);
@ -263,64 +256,49 @@ WRITE_LINE_MEMBER(truco_state::pia_irqb_w)
void truco_state::main_map(address_map &map)
{
map(0x0000, 0x17ff).ram(); /* General purpose RAM */
map(0x1800, 0x7bff).ram().share("videoram"); /* Video RAM */
map(0x7c00, 0x7fff).ram().share("battery_ram"); /* Battery backed RAM */
map(0x0000, 0x17ff).ram(); // General purpose RAM
map(0x1800, 0x7bff).ram().share("videoram"); // Video RAM
map(0x7c00, 0x7fff).ram().share("battery_ram"); // Battery backed RAM
map(0x8000, 0x8003).rw("pia0", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
map(0x8004, 0x8004).w("crtc", FUNC(mc6845_device::address_w));
map(0x8005, 0x8005).rw("crtc", FUNC(mc6845_device::register_r), FUNC(mc6845_device::register_w));
map(0x8008, 0xffff).rom();
}
/*
CRTC:
CRTC MC6845 initialization routine at $a506 only set the first 14 registers (data at $a4e2)
Register: 00 01 02 03 04 05 06 07 08 09 10 11 12 13
Value: 0x5f 0x40 0x4d 0x06 0x0f 0x04 0x0c 0x0e 0x00 0x0f 0x00 0x00 0x00 0xc0
00: 5f
01: 40
02: 4d
03: 06
04: 0f
05: 04
06: 0c
07: 0e
08: 00
09: 0f
0a: 00
0b: 00
0c: 00
0d: c0
*/
/*******************************************
* Input Ports Definition *
*******************************************/
static INPUT_PORTS_START( truco )
PORT_START("P1") /* IN0 */
PORT_DIPNAME( 0x01, 0x01, "IN0-1 (P2 START)" )
PORT_DIPSETTING ( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x02, 0x02, "IN0-2 (SERVICE SW)" )
PORT_DIPSETTING ( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x04, 0x04, "IN0-3 (P2 SELECT)" )
PORT_DIPSETTING ( 0x04, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x08, 0x08, "IN0-4 (COIN2)" )
PORT_DIPSETTING ( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x10, 0x10, "IN0-5 (TILT SW)" )
PORT_DIPSETTING ( 0x10, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
// PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Connected to JAMMA S17 (P2 START) */
// PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Connected to JAMMA S14 (SERVICE SW) */
// PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Connected to JAMMA C26 (P2 SELECT) */
// PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Connected to JAMMA S16 (COIN2) */
// PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* Connected to JAMMA S15 (TILT SW) */
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) /* Connected to JAMMA C22 (P1 BUTTON1) */
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) /* Connected to JAMMA C18/21 (JOY UP & JOY RIGHT) */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) /* Connected to JAMMA C19/20 (JOY DOWN & JOY LEFT) */
PORT_START("P1") // IN0
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN ) // Connected to JAMMA S17 (P2 START)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) // Connected to JAMMA S14 (SERVICE SW)
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) // Connected to JAMMA C26 (P2 SELECT)
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN ) // Connected to JAMMA S16 (COIN2)
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) // Connected to JAMMA S15 (TILT SW)
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) // Connected to JAMMA C22 (P1 BUTTON1)
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) // Connected to JAMMA C18/21 (JOY UP & JOY RIGHT)
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) // Connected to JAMMA C19/20 (JOY DOWN & JOY LEFT)
PORT_START("JMPRS") /* JP1-2 */
PORT_START("COIN") // IN1
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("JMPRS") // JP1-2
PORT_DIPNAME( 0x01, 0x01, DEF_STR( Unknown ) )
PORT_DIPSETTING ( 0x01, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
@ -345,49 +323,39 @@ static INPUT_PORTS_START( truco )
PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) )
PORT_DIPSETTING ( 0x80, DEF_STR( Off ) )
PORT_DIPSETTING ( 0x00, DEF_STR( On ) )
PORT_START("COIN") /* IN1 - FAKE - Used for coinup */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
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
/*******************************************
* Machine Start & Reset *
*******************************************/
void truco_state::machine_start()
{
save_item(NAME(m_trigger));
}
/*******************************************
* Machine Reset & Interrupts *
*******************************************/
void truco_state::machine_reset()
{
int a;
/* Setup the data on the battery backed RAM */
// Setup the data on the battery backed RAM
/* IRQ check */
// IRQ check
m_battery_ram[0x002] = 0x51;
m_battery_ram[0x024] = 0x49;
m_battery_ram[0x089] = 0x04;
m_battery_ram[0x170] = 0x12;
m_battery_ram[0x1a8] = 0xd5;
/* Mainloop check */
// mainloop check
m_battery_ram[0x005] = 0x04;
m_battery_ram[0x22B] = 0x46;
m_battery_ram[0x236] = 0xfb;
m_battery_ram[0x2fe] = 0x1D;
m_battery_ram[0x359] = 0x5A;
/* Boot check */
// boot check
a = ( m_battery_ram[0x000] << 8 ) | m_battery_ram[0x001];
a += 0x4d2;
@ -397,9 +365,14 @@ void truco_state::machine_reset()
m_battery_ram[0x020] = m_battery_ram[0x011];
}
/*******************************************
* Interrupts Handling *
*******************************************/
INTERRUPT_GEN_MEMBER(truco_state::interrupt)
{
/* coinup */
// coinup
if ( ioport("COIN")->read() & 1 )
{
@ -414,17 +387,17 @@ INTERRUPT_GEN_MEMBER(truco_state::interrupt)
/*******************************************
* Machine Driver *
* Machine Config *
*******************************************/
void truco_state::truco(machine_config &config)
{
/* basic machine hardware */
// basic machine hardware
M6809(config, m_maincpu, CPU_CLOCK);
m_maincpu->set_addrmap(AS_PROGRAM, &truco_state::main_map);
m_maincpu->set_vblank_int("screen", FUNC(truco_state::interrupt));
WATCHDOG_TIMER(config, m_watchdog).set_time(attotime::from_msec(1600)); /* 1.6 seconds */
WATCHDOG_TIMER(config, m_watchdog).set_time(attotime::from_msec(1600)); // 1.6 seconds
pia6821_device &pia(PIA6821(config, "pia0", 0));
pia.readpa_handler().set_ioport("P1");
@ -435,22 +408,22 @@ void truco_state::truco(machine_config &config)
pia.irqa_handler().set(FUNC(truco_state::pia_irqa_w));
pia.irqb_handler().set(FUNC(truco_state::pia_irqb_w));
/* video hardware */
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500) /* not accurate */);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate
screen.set_size(256, 192);
screen.set_visarea(0, 256-1, 0, 192-1);
screen.set_screen_update(FUNC(truco_state::screen_update));
PALETTE(config, "palette", FUNC(truco_state::truco_palette), 16);
mc6845_device &crtc(MC6845(config, "crtc", CRTC_CLOCK)); /* Identified as UM6845 */
mc6845_device &crtc(MC6845(config, "crtc", CRTC_CLOCK)); // identified as UM6845
crtc.set_screen("screen");
crtc.set_show_border_area(false);
crtc.set_char_width(4);
/* sound hardware */
// sound hardware
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.4);
voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
@ -470,5 +443,6 @@ ROM_START( truco )
ROM_LOAD( "truco.u2", 0x0c000, 0x4000, CRC(ff355750) SHA1(1538f20b1919928ffca439e4046a104ddfbc756c) )
ROM_END
// YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS
// YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS
GAME( 198?, truco, 0, truco, truco, truco_state, empty_init, ROT0, "Playtronic SRL", "Truco-Tron", MACHINE_SUPPORTS_SAVE )

1
src/mame/includes/truco.h
View File

@ -1,5 +1,6 @@
// license:BSD-3-Clause
// copyright-holders:Ernesto Corvi, Roberto Fresca
#ifndef MAME_INCLUDES_TRUCO_H
#define MAME_INCLUDES_TRUCO_H

4
src/mame/video/truco.cpp
View File

@ -2,7 +2,7 @@
// copyright-holders:Ernesto Corvi, Roberto Fresca
/***************************************************************************
video.c
Truco-Tron
Functions to emulate the video hardware of the machine.
@ -28,7 +28,7 @@ void truco_state::truco_palette(palette_device &palette) const
b >>= 1;
}
palette.set_pen_color(i,rgb_t(r,g,b));
palette.set_pen_color(i, rgb_t(r, g, b));
}
}