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segag80r.cpp
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segag80r.cpp
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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
Sega G-80 raster hardware
Games supported:
* Astro Blaster
* Monster Bash
* 005
* Space Odyssey
* Pig Newton
* Sindbad Mystery
Known bugs:
* Pig Newton doesn't read cocktail controls (might be game bug)
* Astro Blaster v1 dies when you first start if you only
have one credit at the time (bad dump?, protection?)
****************************************************************************
The Sega G-80 system is an interchangeable raster/vector system with
a common main board and a stack of video/sound boards for each game.
The CPU boards were protected with the famous G-80 security chips,
which scramble the address lines on memory writes. Below are a list of
games and their board stacks:
Astro Blaster:
* G-80 CPU board (315-0062 security)
* G-80 2716 EPROM board
* Video I board
* G-80 Speech Synthesis Board
* Astro Blaster Sound board (discrete)
005:
* G-80 CPU board (315-0070 security)
* G-80 2716 EPROM board
* Video I board
* 005 Sound board (melody generator + DAC, discrete)
Space Odyssey:
* G-80 CPU board (315-0063 security)
* G-80 2716 EPROM board
* Video I board
* Space Odyssey Background Generator Board
* Space Odyssey Sound board (discrete)
Monster Bash:
* G-80 CPU board (315-0082 security)
* G-80 2716 EPROM board
* Video I board
* Monster Bash Background Board
* Monster Bash Sound Board (N7751+DAC, TMS3617, discrete)
It appears that later on in the evolution of the hardware, Sega
produced a 2-board version of the hardware which put all the CPU,
EPROM, video, and background hardware on one or two boards:
Monster Bash (2 board):
* G-80 consolidated boardset (315-5006 encrypted Z80)
* Monster Bash Sound Board (N7751+DAC, TMS3617, discrete)
Pig Newton:
* G-80 consolidated boardset (315-0062 security)
* Sega Universal Sound Board (I8035, discrete)
Finally, it looks like Sega also evolved the hardware in the
direction of their widely-used System 1 hardware. The final G-80
game had a new sound board that was SN76496-based and seemingly
identical to the final System 1 hardware. It also used an encrypted
Z80 CPU very much like the System 1 games (the 2-board Monster Bash
also used one of these):
Sindbad Mystery:
* Unknown boardset (background doesn't match consolidated)
* System 1 Sound (Z80, 2xSN76496)
****************************************************************************
See also segag80v.cpp for the Sega G-80 Vector games.
Many thanks go to Dave Fish for the fine detective work he did into the
G-80 security chips (315-0064, 315-0070, 315-0076, 315-0082) which provided
me with enough information to emulate those chips at runtime along with
the 315-0062 Astro Blaster chip and the 315-0063 Space Odyssey chip.
Special note (24-MAR-1999) - Sindbad Mystery does *not* use the standard
G-80 security chip; rather, it uses the Sega System 1 encryption.
Thanks also go to Paul Tonizzo, Clay Cowgill, John Bowes, and Kevin Klopp
for all the helpful information, samples, and schematics!
TODO:
- verify Pig Newton and Sindbad Mystery DIPs
- attempt 005 sound
- fix Space Odyssey background
- figure out why Astro Blaster version 1 ends the game right away
- Mike Balfour (mab22@po.cwru.edu)
***************************************************************************
26/3/2000: ** Darren Hatton (UKVAC) / Adrian Purser (UKVAC) **
Added a 3rd Astro Blaster ROM set (ASTROB2).
Updated Dip Switches to be correct for the Astro Blaster sets.
***************************************************************************/
#include "emu.h"
#include "segag80r.h"
#include "segag80_m.h"
#include "machine/segacrpt_device.h"
#include "cpu/z80/z80.h"
#include "machine/i8255.h"
#include "speaker.h"
/*************************************
*
* Constants
*
*************************************/
#define CPU_CLOCK 8_MHz_XTAL /* not used when video board is connected */
#define VIDEO_CLOCK 15.46848_MHz_XTAL
#define SINDBADM_SOUND_CLOCK 8_MHz_XTAL
#define PIXEL_CLOCK (VIDEO_CLOCK/3)
#define HTOTAL (328)
#define HBEND (0)
#define HBSTART (256)
#define VTOTAL (262)
#define VBEND (0)
#define VBSTART (224)
// Unsure whether this should be 2 or 3. It depends on how many rising clock
// edges MEMRQ is held for, plus 1 additional cycle. Going to 3 creates
// noticeable slowdowns in Space Fury.
static constexpr int WAIT_STATES = 2;
/*************************************
*
* Machine setup and config
*
*************************************/
INPUT_CHANGED_MEMBER(segag80r_state::service_switch)
{
/* pressing the service switch sends an NMI */
if (newval)
m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
}
void segag80r_state::machine_start()
{
m_vblank_latch_clear_timer = timer_alloc(FUNC(segag80r_state::vblank_latch_clear), this);
m_scrambled_write_pc = 0xffff;
/* register for save states */
save_item(NAME(m_scrambled_write_pc));
}
/*************************************
*
* RAM writes/decryption
*
*************************************/
uint8_t segag80r_state::g80r_opcode_r(offs_t offset)
{
// opcodes themselves are not scrambled
uint8_t op = m_maincpu->space(AS_PROGRAM).read_byte(offset);
// writes via opcode $32 (LD $(XXYY),A) get scrambled
if (!machine().side_effects_disabled())
m_scrambled_write_pc = (op == 0x32) ? offset : 0xffff;
return op;
}
offs_t segag80r_state::decrypt_offset(offs_t offset)
{
if (m_scrambled_write_pc == 0xffff)
return offset;
offs_t pc = m_scrambled_write_pc;
m_scrambled_write_pc = 0xffff;
/* munge the low byte of the address */
return (offset & 0xff00) | (*m_decrypt)(pc, offset & 0xff);
}
void segag80r_state::mainram_w(offs_t offset, uint8_t data)
{
m_mainram[decrypt_offset(offset)] = data;
}
void segag80r_state::vidram_w(offs_t offset, uint8_t data){ segag80r_videoram_w(decrypt_offset(offset), data); }
void segag80r_state::monsterb_vidram_w(offs_t offset, uint8_t data){ monsterb_videoram_w(decrypt_offset(offset), data); }
void segag80r_state::pignewt_vidram_w(offs_t offset, uint8_t data){ pignewt_videoram_w(decrypt_offset(offset), data); }
void segag80r_state::sindbadm_vidram_w(offs_t offset, uint8_t data){ sindbadm_videoram_w(decrypt_offset(offset), data); }
void segag80r_state::usb_ram_w(offs_t offset, uint8_t data){ m_usbsnd->ram_w(decrypt_offset(offset), data); }
/*************************************
*
* Input ports
*
*************************************/
inline uint8_t segag80r_state::demangle(uint8_t d7d6, uint8_t d5d4, uint8_t d3d2, uint8_t d1d0)
{
return ((d7d6 << 7) & 0x80) | ((d7d6 << 2) & 0x40) |
((d5d4 << 5) & 0x20) | ((d5d4 << 0) & 0x10) |
((d3d2 << 3) & 0x08) | ((d3d2 >> 2) & 0x04) |
((d1d0 << 1) & 0x02) | ((d1d0 >> 4) & 0x01);
}
uint8_t segag80r_state::mangled_ports_r(offs_t offset)
{
/* The input ports are odd. Neighboring lines are read via a mux chip */
/* one bit at a time. This means that one bank of DIP switches will be */
/* read as two bits from each of 4 ports. For this reason, the input */
/* ports have been organized logically, and are demangled at runtime. */
/* 4 input ports each provide 8 bits of information. */
uint8_t d7d6 = ioport("D7D6")->read();
uint8_t d5d4 = ioport("D5D4")->read();
uint8_t d3d2 = ioport("D3D2")->read();
uint8_t d1d0 = ioport("D1D0")->read();
int shift = offset & 3;
return demangle(d7d6 >> shift, d5d4 >> shift, d3d2 >> shift, d1d0 >> shift);
}
uint8_t segag80r_state::spaceod_mangled_ports_r(offs_t offset)
{
/* Space Odyssey has different (and conflicting) wiring for upright */
/* versus cocktail cabinets; we fix this here. The input ports are */
/* coded for cocktail mode; for upright mode, we manually shuffle the */
/* bits around. */
uint8_t d7d6 = ioport("D7D6")->read();
uint8_t d5d4 = ioport("D5D4")->read();
uint8_t d3d2 = ioport("D3D2")->read();
uint8_t d1d0 = ioport("D1D0")->read();
int shift = offset & 3;
/* tweak bits for the upright case */
uint8_t upright = d3d2 & 0x04;
if (upright)
{
uint8_t fc = ioport("FC")->read();
d7d6 |= 0x60;
d5d4 = (d5d4 & ~0x1c) |
((~fc & 0x20) >> 3) | /* IPT_BUTTON2 */
((~fc & 0x10) >> 1) | /* IPT_BUTTON1 */
((~fc & 0x08) << 1) | /* IPT_JOYSTICK_UP */
0xc0;
}
return demangle(d7d6 >> shift, d5d4 >> shift, d3d2 >> shift, d1d0 >> shift);
}
uint8_t segag80r_state::spaceod_port_fc_r()
{
uint8_t upright = ioport("D3D2")->read() & 0x04;
uint8_t fc = ioport("FC")->read();
/* tweak bits for the upright case */
if (upright)
{
fc = (fc & ~0x03) |
((fc & 0x02) >> 1) | /* IPT_JOYSTICK_RIGHT */
((fc & 0x01) << 1); /* IPT_JOYSTICK_LEFT */
fc &= 0x07;
}
return fc;
}
void segag80r_state::coin_count_w(uint8_t data)
{
machine().bookkeeping().coin_counter_w(0, (data >> 7) & 1);
machine().bookkeeping().coin_counter_w(1, (data >> 6) & 1);
}
/*************************************
*
* sindbad Mystery sound handling
*
*************************************/
void segag80r_state::sindbadm_misc_w(uint8_t data)
{
machine().bookkeeping().coin_counter_w(0, data & 0x02);
m_audiocpu->set_input_line(INPUT_LINE_NMI, BIT(data, 7) ? CLEAR_LINE : ASSERT_LINE);
// osd_printf_debug("Unknown = %02X\n", data);
}
/* the data lines are flipped */
void segag80r_state::sindbadm_sn1_SN76496_w(uint8_t data)
{
m_sn1->write(bitswap<8>(data, 0,1,2,3,4,5,6,7));
}
void segag80r_state::sindbadm_sn2_SN76496_w(uint8_t data)
{
m_sn2->write(bitswap<8>(data, 0,1,2,3,4,5,6,7));
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
/* complete memory map derived from schematics */
void segag80r_state::main_map(address_map &map)
{
map(0x0000, 0x07ff).rom(); /* CPU board ROM */
map(0x0800, 0x7fff).rom(); /* PROM board ROM area */
map(0x8000, 0xbfff).rom(); /* PROM board ROM area */
map(0xc800, 0xcfff).ram().w(FUNC(segag80r_state::mainram_w)).share("mainram");
map(0xe000, 0xffff).ram().w(FUNC(segag80r_state::vidram_w)).share("videoram");
}
void segag80r_state::g80r_opcodes_map(address_map &map)
{
map(0x0000, 0xffff).r(FUNC(segag80r_state::g80r_opcode_r));
}
void segag80r_state::sega_315_opcodes_map(address_map &map)
{
map(0x0000, 0x7fff).rom().share("decrypted_opcodes");
map(0x8000, 0xbfff).rom().region("maincpu", 0x8000);
map(0xc800, 0xcfff).ram().w(FUNC(segag80r_state::mainram_w)).share("mainram");
map(0xe000, 0xffff).ram().w(FUNC(segag80r_state::vidram_w)).share("videoram");
}
/* complete memory map derived from schematics */
void segag80r_state::main_portmap(address_map &map)
{
map.global_mask(0xff);
map(0xbe, 0xbf).rw(FUNC(segag80r_state::segag80r_video_port_r), FUNC(segag80r_state::segag80r_video_port_w));
map(0xf9, 0xf9).mirror(0x04).w(FUNC(segag80r_state::coin_count_w));
map(0xf8, 0xfb).r(FUNC(segag80r_state::mangled_ports_r));
map(0xfc, 0xfc).portr("FC");
}
void segag80r_state::main_ppi8255_portmap(address_map &map)
{
map.global_mask(0xff);
map(0x0c, 0x0f).rw("ppi8255", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0xbe, 0xbf).rw(FUNC(segag80r_state::segag80r_video_port_r), FUNC(segag80r_state::segag80r_video_port_w));
map(0xf9, 0xf9).mirror(0x04).w(FUNC(segag80r_state::coin_count_w));
map(0xf8, 0xfb).r(FUNC(segag80r_state::mangled_ports_r));
map(0xfc, 0xfc).portr("FC");
}
void segag80r_state::sindbadm_portmap(address_map &map)
{
map.global_mask(0xff);
map(0x42, 0x43).rw(FUNC(segag80r_state::segag80r_video_port_r), FUNC(segag80r_state::segag80r_video_port_w));
map(0x80, 0x83).rw("ppi8255", FUNC(i8255_device::read), FUNC(i8255_device::write));
map(0xf8, 0xfb).r(FUNC(segag80r_state::mangled_ports_r));
}
/*************************************
*
* Sound CPU memory handlers
*
*************************************/
/* complete memory map derived from System 1 schematics */
void segag80r_state::sindbadm_sound_map(address_map &map)
{
map(0x0000, 0x1fff).rom();
map(0x8000, 0x87ff).mirror(0x1800).ram();
map(0xa000, 0xa003).mirror(0x1ffc).w(FUNC(segag80r_state::sindbadm_sn1_SN76496_w));
map(0xc000, 0xc003).mirror(0x1ffc).w(FUNC(segag80r_state::sindbadm_sn2_SN76496_w));
map(0xe000, 0xe000).mirror(0x1fff).r("ppi8255", FUNC(i8255_device::acka_r));
}
/*************************************
*
* Generic Port definitions
*
*************************************/
static INPUT_PORTS_START( g80r_generic )
PORT_START("D7D6")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(3) /* P1.5 */
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) /* n/c */
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* n/c */
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* n/c */
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_IMPULSE(3) /* P1.8 */
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.13 */
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.14 */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) /* n/c */
PORT_START("D5D4")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_SERVICE1 ) /* P1.10 */
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 ) /* P1.15 */
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.16 */
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.17 */
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.18 */
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 ) /* P1.19 */
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.20 */
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) /* P1.21 */
PORT_START("D3D2")
PORT_DIPUNUSED_DIPLOC( 0x01, 0x01, "SW1:8" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x02, 0x02, "SW1:7" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x04, 0x04, "SW1:6" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x08, 0x08, "SW1:5" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x10, 0x10, "SW1:4" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x20, 0x20, "SW1:3" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x40, 0x40, "SW1:2" ) /* Listed as "Unused" (astrob) */
PORT_DIPUNUSED_DIPLOC( 0x80, 0x80, "SW1:1" ) /* Listed as "Unused" (astrob) */
PORT_START("D1D0")
PORT_DIPNAME( 0x0f, 0x03, DEF_STR( Coin_A )) PORT_DIPLOCATION("SW2:8,7,6,5")
PORT_DIPSETTING( 0x00, DEF_STR( 4C_1C ))
PORT_DIPSETTING( 0x01, DEF_STR( 3C_1C ))
PORT_DIPSETTING( 0x02, DEF_STR( 2C_1C ))
PORT_DIPSETTING( 0x09, "2 Coins/1 Credit 5/3 6/4" )
PORT_DIPSETTING( 0x0a, "2 Coins/1 Credit 4/3" )
PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ))
PORT_DIPSETTING( 0x0b, "1 Coin/1 Credit 5/6" )
PORT_DIPSETTING( 0x0c, "1 Coin/1 Credit 4/5" )
PORT_DIPSETTING( 0x0d, "1 Coin/1 Credit 2/3" )
PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ))
PORT_DIPSETTING( 0x0e, "1 Coin/2 Credits 5/11" )
PORT_DIPSETTING( 0x0f, "1 Coin/2 Credits 4/9" )
PORT_DIPSETTING( 0x05, DEF_STR( 1C_3C ))
PORT_DIPSETTING( 0x06, DEF_STR( 1C_4C ))
PORT_DIPSETTING( 0x07, DEF_STR( 1C_5C ))
PORT_DIPSETTING( 0x08, DEF_STR( 1C_6C ))
PORT_DIPNAME( 0xf0, 0x30, DEF_STR( Coin_B )) PORT_DIPLOCATION("SW2:4,3,2,1")
PORT_DIPSETTING( 0x00, DEF_STR( 4C_1C ))
PORT_DIPSETTING( 0x10, DEF_STR( 3C_1C ))
PORT_DIPSETTING( 0x20, DEF_STR( 2C_1C ))
PORT_DIPSETTING( 0x90, "2 Coins/1 Credit 5/3 6/4" )
PORT_DIPSETTING( 0xa0, "2 Coins/1 Credit 4/3" )
PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ))
PORT_DIPSETTING( 0xb0, "1 Coin/1 Credit 5/6" )
PORT_DIPSETTING( 0xc0, "1 Coin/1 Credit 4/5" )
PORT_DIPSETTING( 0xd0, "1 Coin/1 Credit 2/3" )
PORT_DIPSETTING( 0x40, DEF_STR( 1C_2C ))
PORT_DIPSETTING( 0xe0, "1 Coin/2 Credits 5/11" )
PORT_DIPSETTING( 0xf0, "1 Coin/2 Credits 4/9" )
PORT_DIPSETTING( 0x50, DEF_STR( 1C_3C ))
PORT_DIPSETTING( 0x60, DEF_STR( 1C_4C ))
PORT_DIPSETTING( 0x70, DEF_STR( 1C_5C ))
PORT_DIPSETTING( 0x80, DEF_STR( 1C_6C ))
PORT_START("FC")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.23 */
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.24 */
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.25 */
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.26 */
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.27 */
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.28 */
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.29 */
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) /* P1.30 */
PORT_START("SERVICESW")
PORT_SERVICE_NO_TOGGLE( 0x01, IP_ACTIVE_HIGH ) PORT_CHANGED_MEMBER(DEVICE_SELF, segag80r_state,service_switch, 0)
INPUT_PORTS_END
/*************************************
*
* Port definitions
*
*************************************/
static INPUT_PORTS_START( astrob )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "2" )
PORT_DIPSETTING( 0x01, "3" )
PORT_DIPSETTING( 0x02, "4" )
PORT_DIPSETTING( 0x03, "5" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x04, DEF_STR( Upright ))
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ))
PORT_DIPNAME( 0x08, 0x00, "Demo Speech" ) PORT_DIPLOCATION("SW1:5") /* Listed as "Unused" */
PORT_DIPSETTING( 0x08, DEF_STR( Off ))
PORT_DIPSETTING( 0x00, DEF_STR( On ))
PORT_MODIFY("FC")
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON2 ) PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_2WAY PORT_COCKTAIL
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_2WAY PORT_COCKTAIL
INPUT_PORTS_END
static INPUT_PORTS_START( astrob2 )
PORT_INCLUDE(astrob)
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x01, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "2" )
PORT_DIPSETTING( 0x01, "3" )
//PORT_DIPSETTING( 0x02, "3" )
//PORT_DIPSETTING( 0x03, "3" )
INPUT_PORTS_END
static INPUT_PORTS_START( 005 )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D7D6")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x02, "4" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x04, DEF_STR( Upright ))
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ))
PORT_MODIFY("FC")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_4WAY PORT_COCKTAIL
INPUT_PORTS_END
static INPUT_PORTS_START( spaceod )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D7D6")
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
/* upright:
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
*/
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x02, "4" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x04, DEF_STR( Upright ))
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ))
PORT_DIPNAME( 0x18, 0x00, DEF_STR( Bonus_Life )) PORT_DIPLOCATION("SW1:5,4")
PORT_DIPSETTING( 0x00, "20000" )
PORT_DIPSETTING( 0x10, "40000" )
PORT_DIPSETTING( 0x08, "60000" )
PORT_DIPSETTING( 0x18, "80000" )
PORT_DIPNAME( 0x80, 0x80, "Infinite Lives (Cheat)") PORT_DIPLOCATION("SW1:1")
PORT_DIPSETTING( 0x80, DEF_STR( Off ))
PORT_DIPSETTING( 0x00, DEF_STR( On ))
PORT_MODIFY("FC")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_8WAY
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1 )
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON2 )
/* upright:
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY
*/
INPUT_PORTS_END
static INPUT_PORTS_START( monsterb )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D7D6")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x02, "4" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x04, DEF_STR( Upright ))
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ))
PORT_DIPNAME( 0x18, 0x10, DEF_STR( Difficulty )) PORT_DIPLOCATION("SW1:5,4")
PORT_DIPSETTING( 0x00, DEF_STR( Easy ))
PORT_DIPSETTING( 0x10, DEF_STR( Medium ))
PORT_DIPSETTING( 0x08, DEF_STR( Hard ))
PORT_DIPSETTING( 0x18, DEF_STR( Hardest ))
PORT_DIPNAME( 0x60, 0x40, DEF_STR( Bonus_Life )) PORT_DIPLOCATION("SW1:3,2")
PORT_DIPSETTING( 0x20, "10000" )
PORT_DIPSETTING( 0x40, "20000" )
PORT_DIPSETTING( 0x60, "40000" )
PORT_DIPSETTING( 0x00, DEF_STR( None ))
PORT_DIPNAME( 0x80, 0x80, "Infinite Lives (Cheat)") PORT_DIPLOCATION("SW1:1")
PORT_DIPSETTING( 0x80, DEF_STR( Off ))
PORT_DIPSETTING( 0x00, DEF_STR( On ))
PORT_MODIFY("FC")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_4WAY PORT_COCKTAIL
INPUT_PORTS_END
static INPUT_PORTS_START( pignewt )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D7D6")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x01, 0x00, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:8")
PORT_DIPSETTING( 0x00, DEF_STR( Upright ))
PORT_DIPSETTING( 0x01, DEF_STR( Cocktail ))
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Demo_Sounds )) PORT_DIPLOCATION("SW1:7")
PORT_DIPSETTING( 0x00, DEF_STR( Off ))
PORT_DIPSETTING( 0x02, DEF_STR( On ))
PORT_DIPNAME( 0x0c, 0x00, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:6,5")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x08, "4" )
PORT_DIPSETTING( 0x04, "5" )
PORT_DIPSETTING( 0x0c, "6" )
PORT_MODIFY("FC")
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT) PORT_4WAY PORT_COCKTAIL
INPUT_PORTS_END
static INPUT_PORTS_START( pignewta )
PORT_INCLUDE(pignewt)
PORT_MODIFY("D7D6")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_MODIFY("FC")
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_BUTTON1 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNKNOWN )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_4WAY
INPUT_PORTS_END
static INPUT_PORTS_START( sindbadm )
PORT_INCLUDE(g80r_generic)
PORT_MODIFY("D7D6")
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY
PORT_MODIFY("D5D4")
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_4WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_4WAY
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_4WAY
PORT_MODIFY("D3D2")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives )) PORT_DIPLOCATION("SW1:8,7")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x02, "4" )
PORT_DIPSETTING( 0x01, "5" )
PORT_DIPSETTING( 0x03, "6" )
PORT_DIPNAME( 0x04, 0x04, DEF_STR( Cabinet )) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x04, DEF_STR( Upright ))
PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ))
PORT_DIPNAME( 0x80, 0x80, "Infinite Lives (Cheat)") PORT_DIPLOCATION("SW1:1")
PORT_DIPSETTING( 0x80, DEF_STR( Off ))
PORT_DIPSETTING( 0x00, DEF_STR( On ))
PORT_MODIFY("D1D0")
PORT_DIPNAME( 0x0f, 0x0f, DEF_STR( Coin_A )) PORT_DIPLOCATION("SW2:8,7,6,5")
PORT_DIPSETTING( 0x07, DEF_STR( 4C_1C ))
PORT_DIPSETTING( 0x08, DEF_STR( 3C_1C ))
PORT_DIPSETTING( 0x09, DEF_STR( 2C_1C ))
PORT_DIPSETTING( 0x05, "2 Coins/1 Credit 5/3" )
PORT_DIPSETTING( 0x04, "2 Coins/1 Credit 4/3" )
PORT_DIPSETTING( 0x0f, DEF_STR( 1C_1C ))
PORT_DIPSETTING( 0x03, "1 Coin/1 Credit 5/6" )
PORT_DIPSETTING( 0x02, "1 Coin/1 Credit 4/5" )
PORT_DIPSETTING( 0x01, "1 Coin/1 Credit 2/3" )
PORT_DIPSETTING( 0x06, DEF_STR( 2C_3C ))
PORT_DIPSETTING( 0x0e, DEF_STR( 1C_2C ))
PORT_DIPSETTING( 0x00, "1 Coin/2 Credits 5/11" )
PORT_DIPSETTING( 0x0d, DEF_STR( 1C_3C ))
PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ))
PORT_DIPSETTING( 0x0b, DEF_STR( 1C_5C ))
PORT_DIPSETTING( 0x0a, DEF_STR( 1C_6C ))
PORT_DIPNAME( 0xf0, 0xf0, DEF_STR( Coin_B )) PORT_DIPLOCATION("SW2:4,3,2,1")
PORT_DIPSETTING( 0x70, DEF_STR( 4C_1C ))
PORT_DIPSETTING( 0x80, DEF_STR( 3C_1C ))
PORT_DIPSETTING( 0x90, DEF_STR( 2C_1C ))
PORT_DIPSETTING( 0x50, "2 Coins/1 Credit 5/3" )
PORT_DIPSETTING( 0x40, "2 Coins/1 Credit 4/3" )
PORT_DIPSETTING( 0xf0, DEF_STR( 1C_1C ))
PORT_DIPSETTING( 0x30, "1 Coin/1 Credit 5/6" )
PORT_DIPSETTING( 0x20, "1 Coin/1 Credit 4/5" )
PORT_DIPSETTING( 0x10, "1 Coin/1 Credit 2/3" )
PORT_DIPSETTING( 0x60, DEF_STR( 2C_3C ))
PORT_DIPSETTING( 0xe0, DEF_STR( 1C_2C ))
PORT_DIPSETTING( 0x00, "1 Coin/2 Credits 5/11" )
PORT_DIPSETTING( 0xd0, DEF_STR( 1C_3C ))
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_4C ))
PORT_DIPSETTING( 0xb0, DEF_STR( 1C_5C ))
PORT_DIPSETTING( 0xa0, DEF_STR( 1C_6C ))
PORT_MODIFY("FC")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_4WAY PORT_COCKTAIL
PORT_BIT( 0xe0, IP_ACTIVE_LOW, IPT_UNKNOWN )
INPUT_PORTS_END
/*************************************
*
* Graphics layouts
*
*************************************/
static const gfx_layout charlayout =
{
8,8,
256,
2,
{ 0x1000*8, 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8
};
static GFXDECODE_START( gfx_segag80r )
GFXDECODE_ENTRY( nullptr, 0x0000, charlayout, 0, 16 )
GFXDECODE_END
static GFXDECODE_START( gfx_spaceod )
GFXDECODE_ENTRY( nullptr, 0x0000, charlayout, 0, 16 )
GFXDECODE_ENTRY( "gfx1", 0x0000, gfx_8x8x6_planar, 64, 1 )
GFXDECODE_END
static GFXDECODE_START( gfx_monsterb )
GFXDECODE_ENTRY( nullptr, 0x0000, charlayout, 0, 16 )
GFXDECODE_ENTRY( "gfx1", 0x0000, gfx_8x8x2_planar, 64, 16 )
GFXDECODE_END
/*************************************
*
* Machine drivers
*
*************************************/
void segag80r_state::g80r_base(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, VIDEO_CLOCK/4);
m_maincpu->set_addrmap(AS_PROGRAM, &segag80r_state::main_map);
m_maincpu->set_addrmap(AS_IO, &segag80r_state::main_portmap);
m_maincpu->set_addrmap(AS_OPCODES, &segag80r_state::g80r_opcodes_map);
m_maincpu->set_vblank_int("screen", FUNC(segag80r_state::segag80r_vblank_start));
m_maincpu->set_irq_acknowledge_callback(FUNC(segag80r_state::segag80r_irq_ack));
/* video hardware */
GFXDECODE(config, m_gfxdecode, m_palette, gfx_segag80r);
PALETTE(config, m_palette).set_entries(64);
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_raw(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART);
m_screen->set_screen_update(FUNC(segag80r_state::screen_update_segag80r));
m_screen->set_palette(m_palette);
}
void segag80r_state::astrob(machine_config &config)
{
g80r_base(config);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
/* sound boards */
ASTRO_BLASTER_AUDIO(config, m_g80_audio, 0).add_route(ALL_OUTPUTS, "speech", 1.0);
SEGA_SPEECH_BOARD(config, "speech", 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
}
void segag80r_state::sega005(machine_config &config)
{
g80r_base(config);
/* basic machine hardware */
m_maincpu->set_addrmap(AS_IO, &segag80r_state::main_ppi8255_portmap);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
/* sound boards */
sega005_sound_board(config);
}
void segag80r_state::spaceod(machine_config &config)
{
g80r_base(config);
/* background board changes */
m_screen->set_video_attributes(VIDEO_ALWAYS_UPDATE);
m_gfxdecode->set_info(gfx_spaceod);
m_palette->set_entries(64 + 64);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
/* sound boards */
spaceod_sound_board(config);
}
void segag80r_state::monsterb(machine_config &config)
{
g80r_base(config);
/* basic machine hardware */
m_maincpu->set_addrmap(AS_IO, &segag80r_state::main_ppi8255_portmap);
i8255_device &ppi(I8255A(config, "ppi8255"));
ppi.out_pa_callback().set(m_soundbrd, FUNC(monsterb_sound_device::sound_a_w));
ppi.out_pb_callback().set(m_soundbrd, FUNC(monsterb_sound_device::sound_b_w));
ppi.in_pc_callback().set(m_soundbrd, FUNC(monsterb_sound_device::n7751_status_r));
ppi.out_pc_callback().set(m_soundbrd, FUNC(monsterb_sound_device::n7751_command_w));
/* background board changes */
m_gfxdecode->set_info(gfx_monsterb);
m_palette->set_entries(64 + 64);
/* sound boards */
MONSTERB_SOUND(config, m_soundbrd, 0);
}
void segag80r_state::monster2(machine_config &config)
{
monsterb(config);
sega_315_spat_device &maincpu(SEGA_315_SPAT(config.replace(), m_maincpu, VIDEO_CLOCK/4));
maincpu.set_addrmap(AS_PROGRAM, &segag80r_state::main_map);
maincpu.set_addrmap(AS_IO, &segag80r_state::main_ppi8255_portmap);
maincpu.set_vblank_int("screen", FUNC(segag80r_state::segag80r_vblank_start));
maincpu.set_irq_acknowledge_callback(FUNC(segag80r_state::segag80r_irq_ack));
maincpu.set_addrmap(AS_OPCODES, &segag80r_state::sega_315_opcodes_map);
maincpu.set_decrypted_tag(":decrypted_opcodes");
}
void segag80r_state::pignewt(machine_config &config)
{
g80r_base(config);
/* background board changes */
m_gfxdecode->set_info(gfx_monsterb);
m_palette->set_entries(64 + 64);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
/* sound boards */
SEGAUSB(config, m_usbsnd, 0, m_maincpu).add_route(ALL_OUTPUTS, "speaker", 1.0);
}
void segag80r_state::sindbadm(machine_config &config)
{
g80r_base(config);
/* basic machine hardware */
sega_315_5028_device &maincpu(SEGA_315_5028(config.replace(), m_maincpu, VIDEO_CLOCK/4));
maincpu.set_addrmap(AS_PROGRAM, &segag80r_state::main_map);
maincpu.set_addrmap(AS_IO, &segag80r_state::sindbadm_portmap);
maincpu.set_addrmap(AS_OPCODES, &segag80r_state::sega_315_opcodes_map);
maincpu.set_vblank_int("screen", FUNC(segag80r_state::sindbadm_vblank_start));
maincpu.set_decrypted_tag(":decrypted_opcodes");
i8255_device &ppi(I8255A(config, "ppi8255"));
ppi.in_pb_callback().set_ioport("FC");
ppi.out_pc_callback().set(FUNC(segag80r_state::sindbadm_misc_w));
/* video hardware */
m_gfxdecode->set_info(gfx_monsterb);
m_palette->set_entries(64 + 64);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
/* sound boards */
Z80(config, m_audiocpu, SINDBADM_SOUND_CLOCK/2);
m_audiocpu->set_addrmap(AS_PROGRAM, &segag80r_state::sindbadm_sound_map);
m_audiocpu->set_periodic_int(FUNC(segag80r_state::irq0_line_hold), attotime::from_hz(4*60));
/* sound hardware */
SN76496(config, m_sn1, SINDBADM_SOUND_CLOCK/2).add_route(ALL_OUTPUTS, "speaker", 1.0); /* matches PCB videos, correct? */
SN76496(config, m_sn2, SINDBADM_SOUND_CLOCK/4).add_route(ALL_OUTPUTS, "speaker", 1.0); /* matches PCB videos, correct? */
}
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( astrob )
ROM_REGION( 0xc000, "maincpu", 0 )
ROM_LOAD( "829b.cpu-u25", 0x0000, 0x0800, CRC(14ae953c) SHA1(eb63d1b95faa5193db7fa6ab245e99325d519b5e) )
ROM_LOAD( "907a.prom-u1", 0x0800, 0x0800, CRC(a9aaaf38) SHA1(73c2b9421b267563acb33d63fbbbda818793c4c1) )
ROM_LOAD( "908a.prom-u2", 0x1000, 0x0800, CRC(897f2b87) SHA1(5468e68053c9a29791f367658630d5c0af332f03) )
ROM_LOAD( "909a.prom-u3", 0x1800, 0x0800, CRC(55a339e6) SHA1(10f603c2105761ce22c3977e3b76ab568bcde1b3) )
ROM_LOAD( "910a.prom-u4", 0x2000, 0x0800, CRC(7972b60a) SHA1(17f6a8a9a45c46ccb03242bac7906b235391cffc) )
ROM_LOAD( "911a.prom-u5", 0x2800, 0x0800, CRC(af87520f) SHA1(df92d0c38c1ab6dc0464d986d89afe3cc02f3dd6) )
ROM_LOAD( "912a.prom-u6", 0x3000, 0x0800, CRC(b656f929) SHA1(1b8545603f724a37727d175614fcca340714a7e3) )