// license:BSD-3-Clause
// copyright-holders:Luca Elia
/***************************************************************************
Air Buster
(C) 1990 Kaneko
driver by Luca Elia (l.elia@tin.it)
CPU : Z-80 x 3
SOUND : YM2203C M6295
OSC. : 12.000MHz 16.000MHz
Interesting routines (main cpu)
-------------------------------
fd-fe address of int: 0x38 (must alternate? see e600/1)
ff-100 address of int: 0x16
66 print "sub cpu caused nmi" and die!
7 after tests
1497 print string following call: (char)*,0. program continues after 0.
base addr = c300 + HL & 08ff, DE=xy , BC=dxdy
+0<-(e61b) +100<-D +200<-E +300<-char +400<-(e61c)
1642 A<- buttons status (bits 0&1)
Interesting locations (main cpu)
--------------------------------
2907 table of routines (f150 index = 1-3f, copied to e612)
e60e<-address of routine, f150<-0. e60e is used until f150!=0
1: 2bf4 service mode next
2: 2d33 3: 16bd 4: 2dcb 5: 2fcf
6: 3262 7: 32b8
8: 335d> print gfx/color test page next
9: 33c0> handle the above page
a: 29c6 b: 2a24 c: 16ce
d: 3e7e> *
e: 3ec5> print "Sub Cpu / Ram Error"; **
f: 3e17> print "Coin error"; **
10: 3528> print (c) notice, not shown next
11: 3730> show (c) notice, wait 0x100 calls next
12: 9658 13: 97c3 14: a9fa 15: aa6e
16-19: 2985 1a: 9c2e 1b: 9ffa 1c: 29c6
1d: 2988> *
1e: a2c4 1f: a31a 20: a32f 21: a344
22: a359 23: a36e 24: a383 25: a398
26: a3ad 27: a3c2 28: a3d7 29: a3f1
2a: a40e 2b: a4e5 2c: a69d 2d: adb8
2e: ade9 2f: 2b8b 30: a823
31: 3d17> print "warm up, wait few mins. secs left: 00" next
32: 3dc0> pause (e624 counter).e626 next
33: 96b4 34: 97ad
35-3f: 3e7e> *
* Print "Command Error [$xx]" where xx is last routine index (e612)
** ld (0000h),A (??) ; loop
3cd7 hiscores table (0x40 bytes, copied to e160)
Try entering TERU as your name :)
7fff country code: 0 <-> Japan; else World
e615 rank: 0-easy 1-normal 2-hard 3-hardest
e624 sound code during sound test
-- Shared RAM --
f148<- sound code (copied from e624)
f14a-> read on nmi routine. main cpu writes the value and writes to port 02
f150<- index of table of routines at 2907
----------------
Interesting routines (sub cpu)
-------------------------------
491 copy palette data d000<-f200(a0) d200<-f300(a0) d400<-f400(200)
61c f150<-A f151<-A (routine index of main cpu!)
if dsw1-2 active, it does nothing (?!)
c8c c000-c7ff<-0 c800-cfff<-0 f600<-f200(400)
1750 copies 10 lines of 20 bytes from 289e to f800
22cd copy 0x100 bytes
22cf copy 0x0FF bytes
238d copy 0x0A0 bytes
Interesting locations (sub cpu)
--------------------------------
fd-fe address of int: 0x36e (same as 38)
ff-100 address of int: 0x4b0
-- Shared RAM --
f000 credits
f001/d<-IN 24 (Service)
f00e<- bank
f002<- dsw1 (cpl'd)
f003<- dsw2 (cpl'd)
f004<- IN 20 (cpl'd) (player 1)
f005<- IN 22 (cpl'd) (player 2)
f006<- start lives: dsw-2 & 0x30 index; values: 3,4,5,7 (5da table)
f007 current lives p1
f008 current lives p2
f009<- coin/credit 1: dsw-1 & 0x30 index; values: 11,12,21,23 (5de table)
f00a<- coin 1
f00b<- coin/credit 2: dsw-1 & 0xc0 index; values: 11,12,21,23 (5e2 table)
f00c<- coin 2
f00f ?? outa (28h)
f010 written by sub cpu, bit 4 read by main cpu.
bit 0 p1 playing
bit 1 p2 playing
f014 index (1-f) of routine called during int 36e (table at c3f)
1: 62b 2: 66a 3: 6ad 4: 79f
5: 7e0 6: 81b 7: 8a7 8: 8e9
9: b02 a: 0 b: 0 c: bfc
d: c0d e: a6f f: ac3
f015 index of the routine to call, usually the one selected by f014
but sometimes written directly.
Scroll registers: ports 04/06/08/0a/0c, written in sequence (101f)
port 06 <- f100 + f140 x port 04 <- f104 + f142 y
port 0a <- f120 + f140 x port 08 <- f124 + f142 y
port 0c <- f14c = bit 0/1/2/3 = port 6/4/a/8 val < FF
f148-> sound code (from main cpu)
f14c scroll regs high bits
----------------
Interesting routines (sound cpu)
-------------------------------
50a 6295
521 6295
a96 2203 reg<-B val<-A
Interesting locations (sound cpu)
---------------------------------
c715
c716 pending sound command
c760 rom bank
To Do
-----
- Is the sub cpu / sound cpu communication status port (0e) correct ?
- Main cpu: port 01 ? boot sub/sound cpu?
- Sub cpu: port 0x38 ? irq ack?
- incomplete DSW's
- Spriteram low 0x300 bytes (priority?)
*/
/*
**
** Main cpu data
**
*/
/* Runs in IM 2 fd-fe address of int: 0x38
ff-100 address of int: 0x16 */
/*
**
** Sub cpu data
**
**
*/
/* Runs in IM 2 fd-fe address of int: 0x36e (same as 0x38)
ff-100 address of int: 0x4b0 (only writes to port 38h) */
/*
Sub cpu and Sound cpu communicate bidirectionally:
Sub cpu writes to soundlatch, reads from soundlatch2
Sound cpu writes to soundlatch2, reads from soundlatch
Each latch raises a flag when it's been written.
The flag is cleared when the latch is read.
Code at 505: waits for bit 1 to go low, writes command, waits for bit
0 to go low, reads back value. Code at 3b2 waits bit 2 to go high
(called during int fd)
*/
#include "emu.h"
#include "includes/airbustr.h"
#include "cpu/z80/z80.h"
#include "sound/2203intf.h"
#include "sound/okim6295.h"
#include "speaker.h"
/* Read/Write Handlers */
READ8_MEMBER(airbustr_state::devram_r)
{
// There's an MCU here, possibly
switch (offset)
{
/* Reading efe0 probably resets a watchdog mechanism
that would reset the main cpu. We avoid this and patch
the rom instead (main cpu has to be reset once at startup) */
case 0xfe0:
return m_watchdog->reset_r(space, 0);
/* Reading a word at eff2 probably yelds the product
of the words written to eff0 and eff2 */
case 0xff2:
case 0xff3:
{
int x = (m_devram[0xff0] + m_devram[0xff1] * 256) * (m_devram[0xff2] + m_devram[0xff3] * 256);
if (offset == 0xff2)
return (x & 0x00ff) >> 0;
else
return (x & 0xff00) >> 8;
}
/* Reading eff4, F0 times must yield at most 80-1 consecutive
equal values */
case 0xff4:
return machine().rand();
default:
return m_devram[offset];
}
}
WRITE8_MEMBER(airbustr_state::master_nmi_trigger_w)
{
m_slave->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
}
WRITE8_MEMBER(airbustr_state::master_bankswitch_w)
{
m_masterbank->set_entry(data & 0x07);
}
WRITE8_MEMBER(airbustr_state::slave_bankswitch_w)
{
m_slavebank->set_entry(data & 0x07);
for (int layer = 0; layer < 2; layer++)
m_tilemap[layer]->set_flip(BIT(data, 4) ? TILEMAP_FLIPX | TILEMAP_FLIPY : 0);
m_pandora->flip_screen_set(BIT(data, 4));
// used at the end of levels, after defeating the boss, to leave trails
m_pandora->set_clear_bitmap(BIT(data, 5));
}
WRITE8_MEMBER(airbustr_state::sound_bankswitch_w)
{
m_audiobank->set_entry(data & 0x07);
}
READ8_MEMBER(airbustr_state::soundcommand_status_r)
{
// bits: 2 <-> ? 1 <-> soundlatch full 0 <-> soundlatch2 empty
return 4 | (m_soundlatch[0]->pending_r() << 1) | !m_soundlatch[1]->pending_r();
}
template<int Layer>
WRITE8_MEMBER(airbustr_state::videoram_w)
{
m_videoram[Layer][offset] = data;
m_tilemap[Layer]->mark_tile_dirty(offset);
}
template<int Layer>
WRITE8_MEMBER(airbustr_state::colorram_w)
{
m_colorram[Layer][offset] = data;
m_tilemap[Layer]->mark_tile_dirty(offset);
}
WRITE8_MEMBER(airbustr_state::coin_counter_w)
{
machine().bookkeeping().coin_counter_w(0, data & 1);
machine().bookkeeping().coin_counter_w(1, data & 2);
machine().bookkeeping().coin_lockout_w(0, ~data & 4);
machine().bookkeeping().coin_lockout_w(1, ~data & 8);
}
/* Memory Maps */
void airbustr_state::master_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr("masterbank");
map(0xc000, 0xcfff).rw(m_pandora, FUNC(kaneko_pandora_device::spriteram_r), FUNC(kaneko_pandora_device::spriteram_w));
map(0xd000, 0xdfff).ram();
map(0xe000, 0xefff).ram().share("devram"); // shared with protection device
map(0xf000, 0xffff).ram().share("share1");
}
void airbustr_state::master_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(this, FUNC(airbustr_state::master_bankswitch_w));
map(0x01, 0x01).nopw(); // ???
map(0x02, 0x02).w(this, FUNC(airbustr_state::master_nmi_trigger_w));
}
void airbustr_state::slave_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr("slavebank");
map(0xc000, 0xc3ff).ram().w(this, FUNC(airbustr_state::videoram_w<1>)).share("videoram2");
map(0xc400, 0xc7ff).ram().w(this, FUNC(airbustr_state::colorram_w<1>)).share("colorram2");
map(0xc800, 0xcbff).ram().w(this, FUNC(airbustr_state::videoram_w<0>)).share("videoram1");
map(0xcc00, 0xcfff).ram().w(this, FUNC(airbustr_state::colorram_w<0>)).share("colorram1");
map(0xd000, 0xd5ff).ram().w(m_palette, FUNC(palette_device::write8)).share("palette");
map(0xd600, 0xdfff).ram();
map(0xe000, 0xefff).ram();
map(0xf000, 0xffff).ram().share("share1");
}
void airbustr_state::slave_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(this, FUNC(airbustr_state::slave_bankswitch_w));
map(0x02, 0x02).r(m_soundlatch[1], FUNC(generic_latch_8_device::read)).w(m_soundlatch[0], FUNC(generic_latch_8_device::write));
map(0x04, 0x0c).w(this, FUNC(airbustr_state::scrollregs_w));
map(0x0e, 0x0e).r(this, FUNC(airbustr_state::soundcommand_status_r));
map(0x20, 0x20).portr("P1");
map(0x22, 0x22).portr("P2");
map(0x24, 0x24).portr("SYSTEM");
map(0x28, 0x28).w(this, FUNC(airbustr_state::coin_counter_w));
map(0x38, 0x38).nopw(); // irq ack / irq mask
}
void airbustr_state::sound_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr("audiobank");
map(0xc000, 0xdfff).ram();
}
void airbustr_state::sound_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(this, FUNC(airbustr_state::sound_bankswitch_w));
map(0x02, 0x03).rw("ymsnd", FUNC(ym2203_device::read), FUNC(ym2203_device::write));
map(0x04, 0x04).rw("oki", FUNC(okim6295_device::read), FUNC(okim6295_device::write));
map(0x06, 0x06).r(m_soundlatch[0], FUNC(generic_latch_8_device::read)).w(m_soundlatch[1], FUNC(generic_latch_8_device::write));
}
/* Input Ports */
static INPUT_PORTS_START( airbustr )
PORT_START("P1")
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_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("P2")
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_UNKNOWN )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_START("SYSTEM")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 )
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 )
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 )
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SERVICE1 )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) // used
PORT_START("DSW1")
PORT_DIPUNUSED_DIPLOC( 0x01, IP_ACTIVE_LOW, "SW1:1" )
PORT_DIPNAME( 0x02, 0x02, DEF_STR( Flip_Screen ) ) PORT_DIPLOCATION("SW1:2")
PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_SERVICE_DIPLOC( 0x04, IP_ACTIVE_LOW, "SW1:3" )
PORT_DIPNAME( 0x08, 0x08, "Coin Mode" ) PORT_DIPLOCATION("SW1:4")
PORT_DIPSETTING( 0x08, "Mode 1" ) // routine at 0x056d: 11 21 12 16 (bit 3 active)
PORT_DIPSETTING( 0x00, "Mode 2" ) // 11 21 13 14 (bit 3 not active)
PORT_DIPNAME( 0x30, 0x30, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:5,6")
PORT_DIPSETTING( 0x20, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x10, DEF_STR( 1C_2C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x00, DEF_STR( 1C_6C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x20, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0x10, DEF_STR( 1C_3C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0x00, DEF_STR( 1C_4C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:7,8")
PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x40, DEF_STR( 1C_2C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x00, DEF_STR( 1C_6C ) ) PORT_CONDITION("DSW1", 0x08, NOTEQUALS, 0x00)
PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_1C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0x40, DEF_STR( 1C_3C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_DIPSETTING( 0x00, DEF_STR( 1C_4C ) ) PORT_CONDITION("DSW1", 0x08, EQUALS, 0x00)
PORT_START("DSW2")
PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:1,2")
PORT_DIPSETTING( 0x02, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x03, DEF_STR( Normal ) )
PORT_DIPSETTING( 0x01, DEF_STR( Difficult ) )
PORT_DIPSETTING( 0x00, DEF_STR( Very_Difficult ) )
PORT_DIPUNUSED_DIPLOC( 0x04, IP_ACTIVE_LOW, "SW2:3" )
PORT_DIPNAME( 0x08, 0x08, "Freeze" ) PORT_DIPLOCATION("SW2:4")
PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x30, 0x30, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW2:5,6")
PORT_DIPSETTING( 0x30, "3" )
PORT_DIPSETTING( 0x20, "4" )
PORT_DIPSETTING( 0x10, "5" )
PORT_DIPSETTING( 0x00, "7" )
PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:7")
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x40, DEF_STR( On ) )
PORT_DIPUNUSED_DIPLOC( 0x80, IP_ACTIVE_LOW, "SW2:8" )
INPUT_PORTS_END
static INPUT_PORTS_START( airbustrj )
PORT_INCLUDE(airbustr)
PORT_MODIFY("DSW1")
PORT_DIPUNUSED_DIPLOC( 0x08, IP_ACTIVE_LOW, "SW1:4" )
PORT_DIPNAME( 0x30, 0x30, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:5,6") // routine at 0x0546 : 11 12 21 23
PORT_DIPSETTING( 0x10, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x30, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x20, DEF_STR( 1C_2C ) )
PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:7,8")
PORT_DIPSETTING( 0x40, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0xc0, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 2C_3C ) )
PORT_DIPSETTING( 0x80, DEF_STR( 1C_2C ) )
INPUT_PORTS_END
/* Graphics Layout */
static const gfx_layout tile_gfxlayout =
{
16, 16,
RGN_FRAC(1,1),
4,
{ 0, 1, 2, 3 },
{ 1*4, 0*4, 3*4, 2*4, 5*4, 4*4, 7*4, 6*4,
1*4+32*8, 0*4+32*8, 3*4+32*8, 2*4+32*8, 5*4+32*8, 4*4+32*8, 7*4+32*8, 6*4+32*8 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
0*32+64*8, 1*32+64*8, 2*32+64*8, 3*32+64*8, 4*32+64*8, 5*32+64*8, 6*32+64*8, 7*32+64*8 },
16*16*4
};
static const gfx_layout sprite_gfxlayout =
{
16, 16,
RGN_FRAC(1,1),
4,
{ 0, 1, 2, 3 },
{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4,
0*4+32*8, 1*4+32*8, 2*4+32*8, 3*4+32*8, 4*4+32*8, 5*4+32*8, 6*4+32*8, 7*4+32*8 },
{ 0*32, 1*32, 2*32, 3*32, 4*32, 5*32, 6*32, 7*32,
0*32+64*8, 1*32+64*8, 2*32+64*8, 3*32+64*8, 4*32+64*8, 5*32+64*8, 6*32+64*8, 7*32+64*8 },
16*16*4
};
/* Graphics Decode Information */
static GFXDECODE_START( gfx_airbustr )
GFXDECODE_ENTRY( "gfx1", 0, tile_gfxlayout, 0, 32 ) // tiles
GFXDECODE_ENTRY( "gfx2", 0, sprite_gfxlayout, 512, 16 ) // sprites
GFXDECODE_END
/* Interrupt Generators */
/* Main Z80 uses IM2 */
TIMER_DEVICE_CALLBACK_MEMBER(airbustr_state::airbustr_scanline)
{
int scanline = param;
if(scanline == 240) // vblank-out irq
m_master->set_input_line_and_vector(0, HOLD_LINE, 0xff);
/* Pandora "sprite end dma" irq? TODO: timing is likely off */
if(scanline == 64)
m_master->set_input_line_and_vector(0, HOLD_LINE, 0xfd);
}
/* Sub Z80 uses IM2 too, but 0xff irq routine just contains an irq ack in it */
INTERRUPT_GEN_MEMBER(airbustr_state::slave_interrupt)
{
device.execute().set_input_line_and_vector(0, HOLD_LINE, 0xfd);
}
/* Machine Initialization */
void airbustr_state::machine_start()
{
m_masterbank->configure_entries(0, 8, memregion("master")->base(), 0x4000);
m_slavebank->configure_entries(0, 8, memregion("slave")->base(), 0x4000);
m_audiobank->configure_entries(0, 8, memregion("audiocpu")->base(), 0x4000);
save_item(NAME(m_scrollx));
save_item(NAME(m_scrolly));
save_item(NAME(m_highbits));
}
void airbustr_state::machine_reset()
{
m_scrollx[0] = 0;
m_scrolly[0] = 0;
m_scrollx[1] = 0;
m_scrolly[1] = 0;
m_highbits = 0;
}
/* Machine Driver */
MACHINE_CONFIG_START(airbustr_state::airbustr)
/* basic machine hardware */
MCFG_DEVICE_ADD("master", Z80, XTAL(12'000'000)/2) /* verified on pcb */
MCFG_DEVICE_PROGRAM_MAP(master_map)
MCFG_DEVICE_IO_MAP(master_io_map)
MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", airbustr_state, airbustr_scanline, "screen", 0, 1)
MCFG_DEVICE_ADD("slave", Z80, XTAL(12'000'000)/2) /* verified on pcb */
MCFG_DEVICE_PROGRAM_MAP(slave_map)
MCFG_DEVICE_IO_MAP(slave_io_map)
MCFG_DEVICE_VBLANK_INT_DRIVER("screen", airbustr_state, slave_interrupt) /* nmi signal from master cpu */
MCFG_DEVICE_ADD("audiocpu", Z80, XTAL(12'000'000)/2) /* verified on pcb */
MCFG_DEVICE_PROGRAM_MAP(sound_map)
MCFG_DEVICE_IO_MAP(sound_io_map)
MCFG_DEVICE_VBLANK_INT_DRIVER("screen", airbustr_state, irq0_line_hold) // nmi are caused by sub cpu writing a sound command
MCFG_QUANTUM_TIME(attotime::from_hz(6000)) // Palette RAM is filled by sub cpu with data supplied by main cpu
// Maybe a high value is safer in order to avoid glitches
MCFG_WATCHDOG_ADD("watchdog")
MCFG_WATCHDOG_TIME_INIT(attotime::from_seconds(3)) /* a guess, and certainly wrong */
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(57.4)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(32*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0, 32*8-1, 2*8, 30*8-1)
MCFG_SCREEN_UPDATE_DRIVER(airbustr_state, screen_update)
MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(*this, airbustr_state, screen_vblank))
MCFG_SCREEN_PALETTE("palette")
MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_airbustr)
MCFG_PALETTE_ADD("palette", 768)
MCFG_PALETTE_FORMAT(xGGGGGRRRRRBBBBB)
MCFG_DEVICE_ADD("pandora", KANEKO_PANDORA, 0)
MCFG_KANEKO_PANDORA_GFX_REGION(1)
MCFG_KANEKO_PANDORA_GFXDECODE("gfxdecode")
/* sound hardware */
SPEAKER(config, "mono").front_center();
MCFG_GENERIC_LATCH_8_ADD("soundlatch1")
MCFG_GENERIC_LATCH_DATA_PENDING_CB(INPUTLINE("audiocpu", INPUT_LINE_NMI))
MCFG_GENERIC_LATCH_8_ADD("soundlatch2")
MCFG_DEVICE_ADD("ymsnd", YM2203, XTAL(12'000'000)/4) /* verified on pcb */
MCFG_AY8910_PORT_A_READ_CB(IOPORT("DSW1")) // DSW-1 connected to port A
MCFG_AY8910_PORT_B_READ_CB(IOPORT("DSW2")) // DSW-2 connected to port B
MCFG_SOUND_ROUTE(0, "mono", 0.25)
MCFG_SOUND_ROUTE(1, "mono", 0.25)
MCFG_SOUND_ROUTE(2, "mono", 0.25)
MCFG_SOUND_ROUTE(3, "mono", 0.50)
MCFG_DEVICE_ADD("oki", OKIM6295, XTAL(12'000'000)/4, okim6295_device::PIN7_LOW) /* verified on pcb */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
MACHINE_CONFIG_END
MACHINE_CONFIG_START(airbustr_state::airbustrb)
airbustr(config);
MCFG_WATCHDOG_MODIFY("watchdog")
MCFG_WATCHDOG_TIME_INIT(attotime::from_seconds(0)) // no protection device or watchdog
MACHINE_CONFIG_END
/* ROMs */
ROM_START( airbustr )
ROM_REGION( 0x20000, "master", 0 )
ROM_LOAD( "pr12.h19", 0x00000, 0x20000, CRC(91362eb2) SHA1(cd85acfa6542af68dd1cad46f9426a95cfc9432e) )
ROM_REGION( 0x20000, "slave", 0 )
ROM_LOAD( "pr13.l15", 0x00000, 0x20000, CRC(13b2257b) SHA1(325efa54e757a1f08caf81801930d61ea4e7b6d4) )
ROM_REGION( 0x20000, "audiocpu", 0 )
ROM_LOAD( "pr-21.bin", 0x00000, 0x20000, CRC(6e0a5df0) SHA1(616b7c7aaf52a9a55b63c60717c1866940635cd4) )
ROM_REGION( 0x1000, "mcu", 0 ) //MCU is a 80c51 like DJ Boy / Heavy Unit?
ROM_LOAD( "i80c51", 0x0000, 0x1000, NO_DUMP )
ROM_REGION( 0x80000, "gfx1", 0 )
ROM_LOAD( "pr-000.bin", 0x00000, 0x80000, CRC(8ca68f0d) SHA1(d60389e7e63e9850bcddecb486558de1414f1276) ) // scrolling layers
ROM_REGION( 0x100000, "gfx2", 0 )
ROM_LOAD( "pr-001.bin", 0x00000, 0x80000, CRC(7e6cb377) SHA1(005290f9f53a0c3a6a9d04486b16b7fd52cc94b6) ) // sprites
ROM_LOAD( "pr-02.bin", 0x80000, 0x10000, CRC(6bbd5e46) SHA1(26563737f3f91ee0a056d35ce42217bb57d8a081) )
ROM_REGION( 0x40000, "oki", 0 ) /* OKI-M6295 samples */
ROM_LOAD( "pr-200.bin", 0x00000, 0x40000, CRC(a4dd3390) SHA1(2d72b46b4979857f6b66489bebda9f48799f59cf) )
ROM_END
ROM_START( airbustrj )
ROM_REGION( 0x20000, "master", 0 )
ROM_LOAD( "pr-14j.bin", 0x00000, 0x20000, CRC(6b9805bd) SHA1(db6df33cf17316a4b81d7731dca9fe8bbf81f014) )
ROM_REGION( 0x20000, "slave", 0 )
ROM_LOAD( "pr-11j.bin", 0x00000, 0x20000, CRC(85464124) SHA1(8cce8dfdede48032c40d5f155fd58061866668de) )
ROM_REGION( 0x20000, "audiocpu", 0 )
ROM_LOAD( "pr-21.bin", 0x00000, 0x20000, CRC(6e0a5df0) SHA1(616b7c7aaf52a9a55b63c60717c1866940635cd4) )
ROM_REGION( 0x1000, "mcu", 0 ) //MCU is a 80c51 like DJ Boy / Heavy Unit?
ROM_LOAD( "i80c51", 0x0000, 0x1000, NO_DUMP )
ROM_REGION( 0x80000, "gfx1", 0 )
ROM_LOAD( "pr-000.bin", 0x00000, 0x80000, CRC(8ca68f0d) SHA1(d60389e7e63e9850bcddecb486558de1414f1276) ) // scrolling layers
ROM_REGION( 0x100000, "gfx2", 0 )
ROM_LOAD( "pr-001.bin", 0x000000, 0x80000, CRC(7e6cb377) SHA1(005290f9f53a0c3a6a9d04486b16b7fd52cc94b6) ) // sprites
ROM_LOAD( "pr-02.bin", 0x080000, 0x10000, CRC(6bbd5e46) SHA1(26563737f3f91ee0a056d35ce42217bb57d8a081) )
ROM_REGION( 0x40000, "oki", 0 ) /* OKI-M6295 samples */
ROM_LOAD( "pr-200.bin", 0x00000, 0x40000, CRC(a4dd3390) SHA1(2d72b46b4979857f6b66489bebda9f48799f59cf) )
ROM_END
/*
Differences with the original (when running on the bootleg hardware):
no title screen
long attract modes of every level
slow downs with corrupted screen (you can see the screen being redrawn!) when there are many sprites
the board has 2 oscillators (12 and 16 mhz). Rom 1 and 2 are program roms. 3 and 4 for sound.
Rom 5 is on a piggyback daughterboard with a z80 and a PAL
*/
ROM_START( airbustrb )
ROM_REGION( 0x20000, "master", 0 )
ROM_LOAD( "5.bin", 0x00000, 0x20000, CRC(9e4216a2) SHA1(46572da4df5a67b10cc3ee21bdc0ec4bcecaaf93) )
ROM_REGION( 0x20000, "slave", 0 )
ROM_LOAD( "1.bin", 0x00000, 0x20000, CRC(85464124) SHA1(8cce8dfdede48032c40d5f155fd58061866668de) )
ROM_REGION( 0x20000, "audiocpu", 0 )
ROM_LOAD( "2.bin", 0x00000, 0x20000, CRC(6e0a5df0) SHA1(616b7c7aaf52a9a55b63c60717c1866940635cd4) )
ROM_REGION( 0x80000, "gfx1", 0 )
/* Same content as airbusj, pr-001.bin, different sized roms / interleave */
ROM_LOAD16_BYTE( "7.bin", 0x00000, 0x20000, CRC(2e3bf0a2) SHA1(84cabc753e5fd1164f0a8a9a9dee7d339a5607c5) )
ROM_LOAD16_BYTE( "9.bin", 0x00001, 0x20000, CRC(2c23c646) SHA1(41c0f8788c9715918b4138f076415f8640adc483) )
ROM_LOAD16_BYTE( "6.bin", 0x40000, 0x20000, CRC(0d6cd470) SHA1(329286bc6c9d1eccc74735d1c155a0f5f98f1444) )
ROM_LOAD16_BYTE( "8.bin", 0x40001, 0x20000, CRC(b3372e51) SHA1(aa8dcbb84c829994ae04ceecbef795ac53e72493) )
ROM_REGION( 0x100000, "gfx2", 0 )
/* Same content as airbusj, pr-001.bin, different sized roms */
ROM_LOAD( "13.bin", 0x00000, 0x20000, CRC(75dee86d) SHA1(fe342fed5bb84ee6f35d3f91987141c559e94d5a) )
ROM_LOAD( "12.bin", 0x20000, 0x20000, CRC(c98a8333) SHA1(3a990460e232ee07a9297fcffdb02451406f5bf1) )
ROM_LOAD( "11.bin", 0x40000, 0x20000, CRC(4e9baebd) SHA1(6cf878a3fb3d344e3f5f4d031fbde6f14b653636) )
ROM_LOAD( "10.bin", 0x60000, 0x20000, CRC(63dc8cd8) SHA1(4b466a8ede4211fa3f51572b223eba8766990d7a) )
ROM_LOAD( "14.bin", 0x80000, 0x10000, CRC(6bbd5e46) SHA1(26563737f3f91ee0a056d35ce42217bb57d8a081) )
ROM_REGION( 0x40000, "oki", 0 ) /* OKI-M6295 samples */
/* Same content as airbusj, pr-200.bin, different sized roms */
ROM_LOAD( "4.bin", 0x00000, 0x20000, CRC(21d9bfe3) SHA1(4a69458cd2a6309e389c9e7593ae29d3ef0f8daf) )
ROM_LOAD( "3.bin", 0x20000, 0x20000, CRC(58cd19e2) SHA1(479f22241bf29f7af67d9679fc6c20f10004fdd8) )
ROM_END
/* Driver Initialization */
void airbustr_state::init_airbustr()
{
m_master->space(AS_PROGRAM).install_read_handler(0xe000, 0xefff, read8_delegate(FUNC(airbustr_state::devram_r),this)); // protection device lives here
}
/* Game Drivers */
GAME( 1990, airbustr, 0, airbustr, airbustr, airbustr_state, init_airbustr, ROT0, "Kaneko (Namco license)", "Air Buster: Trouble Specialty Raid Unit (World)", MACHINE_SUPPORTS_SAVE ) // 891220
GAME( 1990, airbustrj, airbustr, airbustr, airbustrj, airbustr_state, init_airbustr, ROT0, "Kaneko (Namco license)", "Air Buster: Trouble Specialty Raid Unit (Japan)", MACHINE_SUPPORTS_SAVE ) // 891229
GAME( 1990, airbustrb, airbustr, airbustrb, airbustrj, airbustr_state, empty_init, ROT0, "bootleg", "Air Buster: Trouble Specialty Raid Unit (bootleg)", MACHINE_SUPPORTS_SAVE ) // based on Japan set (891229)