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MAME/src/mame/kaneko/airbustr.cpp
Vas Crabb 5d8dd014d9 Merge branch 'release0288' into HEAD
2026-05-23 01:35:04 +10:00

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// 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 (0x0e) correct ?
- Main CPU: port 0x01 ? boot sub/sound CPU?
- Sub CPU: port 0x38 ? irq ack?
- incomplete DSWs
- 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 "kaneko_hit.h"
#include "kan_pand.h"
#include "cpu/z80/z80.h"
#include "machine/gen_latch.h"
#include "machine/timer.h"
#include "sound/okim6295.h"
#include "sound/ymopn.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
#include "tilemap.h"
// configurable logging
#define LOG_SCROLLREGS (1U << 1)
//#define VERBOSE (LOG_GENERAL | LOG_SCROLLREGS)
#include "logmacro.h"
#define LOGSCROLLREGS(...) LOGMASKED(LOG_SCROLLREGS, __VA_ARGS__)
namespace {
class airbustr_state : public driver_device
{
public:
airbustr_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_devram(*this, "devram")
, m_videoram(*this, "videoram%u", 1)
, m_colorram(*this, "colorram%u", 1)
, m_mainbank(*this, "mainbank")
, m_subbank(*this, "subbank")
, m_audiobank(*this, "audiobank")
, m_maincpu(*this, "maincpu")
, m_subcpu(*this, "subcpu")
, m_audiocpu(*this, "audiocpu")
, m_pandora(*this, "pandora")
, m_calc1(*this, "calc1")
, m_gfxdecode(*this, "gfxdecode")
, m_screen(*this, "screen")
, m_palette(*this, "palette")
, m_soundlatch(*this, "soundlatch%u", 1)
{
}
void airbustr(machine_config &config);
void airbustrb(machine_config &config);
protected:
virtual void machine_start() override ATTR_COLD;
virtual void machine_reset() override ATTR_COLD;
virtual void video_start() override ATTR_COLD;
private:
// memory pointers
required_shared_ptr<u8> m_devram;
required_shared_ptr_array<u8, 2> m_videoram;
required_shared_ptr_array<u8, 2> m_colorram;
required_memory_bank m_mainbank;
required_memory_bank m_subbank;
required_memory_bank m_audiobank;
// video-related
tilemap_t *m_tilemap[2]{};
u8 m_scrollx[2]{};
u8 m_scrolly[2]{};
u8 m_highbits = 0;
// devices
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<cpu_device> m_audiocpu;
required_device<kaneko_pandora_device> m_pandora;
optional_device<kaneko_hit_device> m_calc1;
required_device<gfxdecode_device> m_gfxdecode;
required_device<screen_device> m_screen;
required_device<palette_device> m_palette;
required_device_array<generic_latch_8_device, 2> m_soundlatch;
void calc1_w(offs_t offset, u8 data);
u8 calc1_r(offs_t offset);
void main_nmi_trigger_w(u8 data);
void main_bankswitch_w(u8 data);
void sub_bankswitch_w(u8 data);
void sound_bankswitch_w(u8 data);
u8 soundcommand_status_r();
void coin_counter_w(u8 data);
template<int Layer> void videoram_w(offs_t offset, u8 data);
template<int Layer> void colorram_w(offs_t offset, u8 data);
void scrollregs_w(offs_t offset, u8 data);
template<int Layer> TILE_GET_INFO_MEMBER(get_tile_info);
u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void screen_vblank(int state);
INTERRUPT_GEN_MEMBER(sub_interrupt);
TIMER_DEVICE_CALLBACK_MEMBER(scanline);
void main_map(address_map &map) ATTR_COLD;
void main_prot_map(address_map &map) ATTR_COLD;
void main_io_map(address_map &map) ATTR_COLD;
void sub_map(address_map &map) ATTR_COLD;
void sub_io_map(address_map &map) ATTR_COLD;
void sound_map(address_map &map) ATTR_COLD;
void sound_io_map(address_map &map) ATTR_COLD;
};
// Video
/**************************************************************************
[Screen]
Size: 256 x 256
Colors: 256 x 3
Color Space: 32R x 32G x 32B
[Scrolling layers]
Number: 2
Size: 512 x 512
Scrolling: X,Y
Tiles Size: 16 x 16
Tiles Number: 0x1000
Colors: 256 x 2 (0-511)
Format:
Offset: 0x400 0x000
Bit: fedc---- -------- Color
----ba98 76543210 Code
[Sprites]
On Screen: 256 x 2
In ROM: 0x2000
Colors: 256 (512-767)
Format: See Below
**************************************************************************/
/* Scroll Registers
Port:
4 Bg Y scroll, low 8 bits
6 Bg X scroll, low 8 bits
8 Fg Y scroll, low 8 bits
A Fg X scroll, low 8 bits
C 3 2 1 0 <-Bit
Bg Y Bg X Fg Y Fg X <-Scroll High Bits (complemented!)
*/
void airbustr_state::scrollregs_w(offs_t offset, u8 data)
{
switch (offset) // offset 0 <-> port 4
{
case 0x00:
case 0x04: m_scrolly[((offset & 4) >> 2) ^ 1] = data; break; // low 8 bits
case 0x02:
case 0x06: m_scrollx[((offset & 4) >> 2) ^ 1] = data; break;
case 0x08: m_highbits = ~data; break; // complemented high bits
default: LOGSCROLLREGS("%s: port %02X written with %02X\n", machine().describe_context(), offset, data);
}
for (int layer = 0; layer < 2; layer++)
{
m_tilemap[layer]->set_scrolly(0, ((m_highbits << (5 + (layer << 1))) & 0x100) + m_scrolly[layer]);
m_tilemap[layer]->set_scrollx(0, ((m_highbits << (6 + (layer << 1))) & 0x100) + m_scrollx[layer]);
}
}
template<int Layer>
TILE_GET_INFO_MEMBER(airbustr_state::get_tile_info)
{
int const attr = m_colorram[Layer][tile_index];
int const code = m_videoram[Layer][tile_index] + ((attr & 0x0f) << 8);
int const color = (attr >> 4) + ((Layer ^ 1) << 4);
tileinfo.set(0, code, color, 0);
}
void airbustr_state::video_start()
{
m_tilemap[0] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(airbustr_state::get_tile_info<0>)), TILEMAP_SCAN_ROWS, 16, 16, 32, 32);
m_tilemap[1] = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(airbustr_state::get_tile_info<1>)), TILEMAP_SCAN_ROWS, 16, 16, 32, 32);
m_tilemap[1]->set_transparent_pen(0);
for (int layer = 0; layer < 2; layer++)
{
m_tilemap[layer]->set_scrolldx(0x094, 0x06a);
m_tilemap[layer]->set_scrolldy(0x100, 0x1ff);
}
}
u32 airbustr_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_tilemap[0]->draw(screen, bitmap, cliprect, 0, 0);
m_tilemap[1]->draw(screen, bitmap, cliprect, 0, 0);
// copy the sprite bitmap to the screen
m_pandora->update(bitmap, cliprect);
return 0;
}
void airbustr_state::screen_vblank(int state)
{
// rising edge
if (state)
{
// update the sprite bitmap
m_pandora->eof();
}
}
// Machine
// Read / Write Handlers
void airbustr_state::calc1_w(offs_t offset, u8 data)
{
offset += 0xfe0;
m_devram[offset] = data;
// CALC1 chip is 16-bit
u16 const data16 = m_devram[offset | 1] << 8 | m_devram[offset & ~1];
m_calc1->kaneko_hit_w((offset & 0x1f) / 2, data16);
}
u8 airbustr_state::calc1_r(offs_t offset)
{
// CALC1 chip is 16-bit
u16 const ret = m_calc1->kaneko_hit_r(offset / 2);
return (offset & 1) ? (ret >> 8) : (ret & 0xff);
}
void airbustr_state::main_nmi_trigger_w(u8 data)
{
m_subcpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
}
void airbustr_state::main_bankswitch_w(u8 data)
{
m_mainbank->set_entry(data & 0x07);
}
void airbustr_state::sub_bankswitch_w(u8 data)
{
m_subbank->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));
}
void airbustr_state::sound_bankswitch_w(u8 data)
{
m_audiobank->set_entry(data & 0x07);
}
u8 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>
void airbustr_state::videoram_w(offs_t offset, u8 data)
{
m_videoram[Layer][offset] = data;
m_tilemap[Layer]->mark_tile_dirty(offset);
}
template<int Layer>
void airbustr_state::colorram_w(offs_t offset, u8 data)
{
m_colorram[Layer][offset] = data;
m_tilemap[Layer]->mark_tile_dirty(offset);
}
void airbustr_state::coin_counter_w(u8 data)
{
machine().bookkeeping().coin_counter_w(0, BIT(data, 0));
machine().bookkeeping().coin_counter_w(1, BIT(data, 1));
machine().bookkeeping().coin_lockout_w(0, BIT(~data, 2));
machine().bookkeeping().coin_lockout_w(1, BIT(~data, 3));
}
// Memory Maps
void airbustr_state::main_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr(m_mainbank);
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(m_devram); // shared with protection device (see below)
map(0xf000, 0xffff).ram().share("main_sub");
}
void airbustr_state::main_prot_map(address_map &map)
{
main_map(map);
map(0xefe0, 0xeff5).rw(FUNC(airbustr_state::calc1_r), FUNC(airbustr_state::calc1_w));
}
void airbustr_state::main_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(FUNC(airbustr_state::main_bankswitch_w));
map(0x01, 0x01).nopw(); // ???
map(0x02, 0x02).w(FUNC(airbustr_state::main_nmi_trigger_w));
}
void airbustr_state::sub_map(address_map &map)
{
map(0x0000, 0x7fff).rom();
map(0x8000, 0xbfff).bankr(m_subbank);
map(0xc000, 0xc3ff).ram().w(FUNC(airbustr_state::videoram_w<1>)).share(m_videoram[1]);
map(0xc400, 0xc7ff).ram().w(FUNC(airbustr_state::colorram_w<1>)).share(m_colorram[1]);
map(0xc800, 0xcbff).ram().w(FUNC(airbustr_state::videoram_w<0>)).share(m_videoram[0]);
map(0xcc00, 0xcfff).ram().w(FUNC(airbustr_state::colorram_w<0>)).share(m_colorram[0]);
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("main_sub");
}
void airbustr_state::sub_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(FUNC(airbustr_state::sub_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(FUNC(airbustr_state::scrollregs_w));
map(0x0e, 0x0e).r(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(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(m_audiobank);
map(0xc000, 0xdfff).ram();
}
void airbustr_state::sound_io_map(address_map &map)
{
map.global_mask(0xff);
map(0x00, 0x00).w(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 Decode Information
static GFXDECODE_START( gfx_airbustr )
GFXDECODE_ENTRY( "tiles", 0, gfx_8x8x4_row_2x2_group_packed_lsb, 0, 32 )
GFXDECODE_END
static GFXDECODE_START( gfx_airbustr_spr )
GFXDECODE_ENTRY( "sprites", 0, gfx_8x8x4_row_2x2_group_packed_msb, 512, 16 )
GFXDECODE_END
// Interrupt Generators
// Main Z80 uses IM2
TIMER_DEVICE_CALLBACK_MEMBER(airbustr_state::scanline)
{
int const scanline = param;
if (scanline == 240) // vblank-out irq
m_maincpu->set_input_line_and_vector(0, HOLD_LINE, 0xff); // Z80
// Pandora "sprite end dma" irq? TODO: timing is likely off
if (scanline == 64)
m_maincpu->set_input_line_and_vector(0, HOLD_LINE, 0xfd); // Z80
}
// Sub Z80 uses IM2 too, but 0xff irq routine just contains an irq ack in it
INTERRUPT_GEN_MEMBER(airbustr_state::sub_interrupt)
{
device.execute().set_input_line_and_vector(0, HOLD_LINE, 0xfd); // Z80
}
// Machine Initialization
void airbustr_state::machine_start()
{
m_mainbank->configure_entries(0, 8, memregion("maincpu")->base(), 0x4000);
m_subbank->configure_entries(0, 8, memregion("subcpu")->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
void airbustr_state::airbustrb(machine_config &config)
{
// basic machine hardware
Z80(config, m_maincpu, XTAL(12'000'000) / 2); // verified on PCB
m_maincpu->set_addrmap(AS_PROGRAM, &airbustr_state::main_map);
m_maincpu->set_addrmap(AS_IO, &airbustr_state::main_io_map);
TIMER(config, "scantimer").configure_scanline(FUNC(airbustr_state::scanline), "screen", 0, 1);
Z80(config, m_subcpu, XTAL(12'000'000) / 2); // verified on PCB
m_subcpu->set_addrmap(AS_PROGRAM, &airbustr_state::sub_map);
m_subcpu->set_addrmap(AS_IO, &airbustr_state::sub_io_map);
m_subcpu->set_vblank_int("screen", FUNC(airbustr_state::sub_interrupt)); // nmi signal from main CPU
Z80(config, m_audiocpu, XTAL(12'000'000) / 2); // verified on PCB
m_audiocpu->set_addrmap(AS_PROGRAM, &airbustr_state::sound_map);
m_audiocpu->set_addrmap(AS_IO, &airbustr_state::sound_io_map);
// palette RAM is filled by sub CPU with data supplied by main CPU, maybe a high value is safer in order to avoid glitches
config.set_maximum_quantum(attotime::from_hz(6000));
// video hardware
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_refresh_hz(57.4);
m_screen->set_vblank_time(ATTOSECONDS_IN_USEC(0));
m_screen->set_size(32*8, 32*8);
m_screen->set_visarea(0, 32*8-1, 2*8, 30*8-1);
m_screen->set_screen_update(FUNC(airbustr_state::screen_update));
m_screen->screen_vblank().set(FUNC(airbustr_state::screen_vblank));
m_screen->set_palette(m_palette);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_airbustr);
PALETTE(config, m_palette).set_format(palette_device::xGRB_555, 768);
KANEKO_PANDORA(config, m_pandora, 0, m_palette, gfx_airbustr_spr);
// sound hardware
SPEAKER(config, "mono").front_center();
GENERIC_LATCH_8(config, m_soundlatch[0]);
m_soundlatch[0]->data_pending_callback().set_inputline(m_audiocpu, INPUT_LINE_NMI);
GENERIC_LATCH_8(config, m_soundlatch[1]);
ym2203_device &ymsnd(YM2203(config, "ymsnd", XTAL(12'000'000) / 4)); // verified on PCB
ymsnd.port_a_read_callback().set_ioport("DSW1");
ymsnd.port_b_read_callback().set_ioport("DSW2");
ymsnd.irq_handler().set_inputline(m_audiocpu, INPUT_LINE_IRQ0);
ymsnd.add_route(0, "mono", 0.25);
ymsnd.add_route(1, "mono", 0.25);
ymsnd.add_route(2, "mono", 0.25);
ymsnd.add_route(3, "mono", 0.50);
OKIM6295(config, "oki", XTAL(12'000'000)/4, okim6295_device::PIN7_LOW).add_route(ALL_OUTPUTS, "mono", 0.80); // verified on PCB
}
void airbustr_state::airbustr(machine_config &config)
{
airbustrb(config);
m_maincpu->set_addrmap(AS_PROGRAM, &airbustr_state::main_prot_map);
KANEKO_HIT(config, m_calc1).set_type(0);
WATCHDOG_TIMER(config, "watchdog").set_time(attotime::from_seconds(3)); // a guess, and certainly wrong
}
// ROMs
ROM_START( airbustr )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_LOAD( "pr12.h19", 0x00000, 0x20000, CRC(91362eb2) SHA1(cd85acfa6542af68dd1cad46f9426a95cfc9432e) )
ROM_REGION( 0x20000, "subcpu", 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( 0x80000, "tiles", 0 )
ROM_LOAD( "pr-000.bin", 0x00000, 0x80000, CRC(8ca68f0d) SHA1(d60389e7e63e9850bcddecb486558de1414f1276) )
ROM_REGION( 0x100000, "sprites", ROMREGION_ERASE00 )
ROM_LOAD( "pr-001.bin", 0x00000, 0x80000, CRC(7e6cb377) SHA1(005290f9f53a0c3a6a9d04486b16b7fd52cc94b6) )
ROM_LOAD( "pr-02.bin", 0x80000, 0x10000, CRC(6bbd5e46) SHA1(26563737f3f91ee0a056d35ce42217bb57d8a081) )
ROM_REGION( 0x40000, "oki", 0 )
ROM_LOAD( "pr-200.bin", 0x00000, 0x40000, CRC(a4dd3390) SHA1(2d72b46b4979857f6b66489bebda9f48799f59cf) )
ROM_REGION( 0x400, "plds", ROMREGION_ERASE00 )
ROM_LOAD( "pal16l8-pr-500.16f", 0x000, 0x104, CRC(e0f901e1) SHA1(f436f5357408ad7056c950018c0e94681b34fd11) )
ROM_LOAD( "gal16v8a-pr-501.13j", 0x200, 0x117, CRC(d8bf8cb5) SHA1(2ccd4b35f97a4fdaf13f3eccb741a0ff54fc7115) )
ROM_END
ROM_START( airbustrj )
ROM_REGION( 0x20000, "maincpu", 0 )
ROM_LOAD( "pr-14j.bin", 0x00000, 0x20000, CRC(6b9805bd) SHA1(db6df33cf17316a4b81d7731dca9fe8bbf81f014) )
ROM_REGION( 0x20000, "subcpu", 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( 0x80000, "tiles", 0 )
ROM_LOAD( "pr-000.bin", 0x00000, 0x80000, CRC(8ca68f0d) SHA1(d60389e7e63e9850bcddecb486558de1414f1276) )
ROM_REGION( 0x100000, "sprites", ROMREGION_ERASE00 )
ROM_LOAD( "pr-001.bin", 0x000000, 0x80000, CRC(7e6cb377) SHA1(005290f9f53a0c3a6a9d04486b16b7fd52cc94b6) )
ROM_LOAD( "pr-02.bin", 0x080000, 0x10000, CRC(6bbd5e46) SHA1(26563737f3f91ee0a056d35ce42217bb57d8a081) )
ROM_REGION( 0x40000, "oki", 0 )
ROM_LOAD( "pr-200.bin", 0x00000, 0x40000, CRC(a4dd3390) SHA1(2d72b46b4979857f6b66489bebda9f48799f59cf) )
ROM_REGION( 0x400, "plds", ROMREGION_ERASE00 )
ROM_LOAD( "pal16l8-pr-500.16f", 0x000, 0x104, CRC(e0f901e1) SHA1(f436f5357408ad7056c950018c0e94681b34fd11) )
ROM_LOAD( "gal16v8a-pr-501.13j", 0x200, 0x117, CRC(d8bf8cb5) SHA1(2ccd4b35f97a4fdaf13f3eccb741a0ff54fc7115) )
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, "maincpu", 0 )
ROM_LOAD( "5.bin", 0x00000, 0x20000, CRC(9e4216a2) SHA1(46572da4df5a67b10cc3ee21bdc0ec4bcecaaf93) )
ROM_REGION( 0x20000, "subcpu", 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, "tiles", 0 )
// Same content as airbustrj, 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, "sprites", ROMREGION_ERASE00 )
// Same content as airbustrj, 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 )
// Same content as airbustrj, 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
} // anonymous namespace
// Game Drivers
GAME( 1990, airbustr, 0, airbustr, airbustr, airbustr_state, empty_init, ROT0, "Kaneko (Namco license)", "Air Buster: Trouble Specialty Raid Unit (World)", MACHINE_SUPPORTS_SAVE ) // 891220
GAME( 1990, airbustrj, airbustr, airbustr, airbustrj, airbustr_state, empty_init, 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)
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