/
citycon.cpp
565 lines (448 loc) · 21.5 KB
/
citycon.cpp
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// license:BSD-3-Clause
// copyright-holders: Mirko Buffoni
/***************************************************************************
City Connection (c) 1985 Jaleco
2008-07
Dip locations added from dip listing at crazykong.com
***************************************************************************/
#include "emu.h"
#include "cpu/m6809/m6809.h"
#include "machine/gen_latch.h"
#include "sound/ay8910.h"
#include "sound/ymopn.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
#include "tilemap.h"
namespace {
class citycon_state : public driver_device
{
public:
citycon_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_videoram(*this, "videoram"),
m_linecolor(*this, "linecolor"),
m_spriteram(*this, "spriteram"),
m_scroll(*this, "scroll"),
m_maincpu(*this, "maincpu"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette"),
m_player(*this, "P%u", 1U)
{ }
void init_citycon();
void citycon(machine_config &config);
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
private:
required_shared_ptr<uint8_t> m_videoram;
required_shared_ptr<uint8_t> m_linecolor;
required_shared_ptr<uint8_t> m_spriteram;
required_shared_ptr<uint8_t> m_scroll;
required_device<cpu_device> m_maincpu;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
required_ioport_array<2> m_player;
// video-related
tilemap_t *m_bg_tilemap = nullptr;
tilemap_t *m_fg_tilemap = nullptr;
uint8_t m_bg_image = 0;
uint8_t in_r();
uint8_t irq_ack_r();
void videoram_w(offs_t offset, uint8_t data);
void background_w(uint8_t data);
TILEMAP_MAPPER_MEMBER(scan);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
inline void changecolor_RRRRGGGGBBBBxxxx(int color, int indx);
void main_map(address_map &map);
void sound_map(address_map &map);
};
/***************************************************************************
Callbacks for the TileMap code
***************************************************************************/
TILEMAP_MAPPER_MEMBER(citycon_state::scan)
{
// logical (col,row) -> memory offset
return (col & 0x1f) + ((row & 0x1f) << 5) + ((col & 0x60) << 5);
}
TILE_GET_INFO_MEMBER(citycon_state::get_fg_tile_info)
{
tileinfo.set(0,
m_videoram[tile_index],
(tile_index & 0x03e0) >> 5, // color depends on scanline only
0);
}
TILE_GET_INFO_MEMBER(citycon_state::get_bg_tile_info)
{
uint8_t *rom = memregion("bgtiles2")->base();
int const code = rom[0x1000 * m_bg_image + tile_index];
tileinfo.set(3 + m_bg_image,
code,
rom[0xc000 + 0x100 * m_bg_image + code],
0);
}
/***************************************************************************
Start the video hardware emulation.
***************************************************************************/
void citycon_state::video_start()
{
m_fg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(citycon_state::get_fg_tile_info)), tilemap_mapper_delegate(*this, FUNC(citycon_state::scan)), 8, 8, 128, 32);
m_bg_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(citycon_state::get_bg_tile_info)), tilemap_mapper_delegate(*this, FUNC(citycon_state::scan)), 8, 8, 128, 32);
m_fg_tilemap->set_transparent_pen(0);
m_fg_tilemap->set_scroll_rows(32);
}
/***************************************************************************
Memory handlers
***************************************************************************/
void citycon_state::videoram_w(offs_t offset, uint8_t data)
{
m_videoram[offset] = data;
m_fg_tilemap->mark_tile_dirty(offset);
}
void citycon_state::background_w(uint8_t data)
{
// bits 4-7 control the background image
if (m_bg_image != (data >> 4))
{
m_bg_image = (data >> 4);
m_bg_tilemap->mark_all_dirty();
}
// bit 0 flips screen
// it is also used to multiplex player 1 and player 2 controls
flip_screen_set(data & 0x01);
// bits 1-3 are unknown
// if ((data & 0x0e) != 0) logerror("background register = %02x\n", data);
}
void citycon_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect)
{
for (int offs = m_spriteram.bytes() - 4; offs >= 0; offs -= 4)
{
int sx = m_spriteram[offs + 3];
int sy = 239 - m_spriteram[offs];
int flipx = ~m_spriteram[offs + 2] & 0x10;
if (flip_screen())
{
sx = 240 - sx;
sy = 238 - sy;
flipx = !flipx;
}
m_gfxdecode->gfx(m_spriteram[offs + 1] & 0x80 ? 2 : 1)->transpen(bitmap, cliprect,
m_spriteram[offs + 1] & 0x7f,
m_spriteram[offs + 2] & 0x0f,
flipx, flip_screen(),
sx, sy, 0);
}
}
inline void citycon_state::changecolor_RRRRGGGGBBBBxxxx(int color, int indx)
{
int const data = m_palette->basemem().read8(2 * indx | 1) | (m_palette->basemem().read8(2 * indx) << 8);
m_palette->set_pen_color(color, pal4bit(data >> 12), pal4bit(data >> 8), pal4bit(data >> 4));
}
uint32_t citycon_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
// Update the virtual palette to support text color code changing on every scanline.
for (int offs = 0; offs < 256; offs++)
{
int indx = m_linecolor[offs];
for (int i = 0; i < 4; i++)
changecolor_RRRRGGGGBBBBxxxx(640 + 4 * offs + i, 512 + 4 * indx + i);
}
int const scroll = m_scroll[0] * 256 + m_scroll[1];
m_bg_tilemap->set_scrollx(0, scroll >> 1);
for (int offs = 6; offs < 32; offs++)
m_fg_tilemap->set_scrollx(offs, scroll);
m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
m_fg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
draw_sprites(bitmap, cliprect);
return 0;
}
uint8_t citycon_state::in_r()
{
return m_player[flip_screen()]->read();
}
uint8_t citycon_state::irq_ack_r()
{
m_maincpu->set_input_line(0, CLEAR_LINE);
return 0;
}
void citycon_state::main_map(address_map &map)
{
map(0x0000, 0x0fff).ram();
map(0x1000, 0x1fff).ram().w(FUNC(citycon_state::videoram_w)).share(m_videoram);
map(0x2000, 0x20ff).ram().share(m_linecolor).mirror(0x0700);
map(0x2800, 0x28ff).ram().share(m_spriteram).mirror(0x0700); //0x2900-0x2fff cleared at post but unused
map(0x3000, 0x3000).r(FUNC(citycon_state::in_r)).w(FUNC(citycon_state::background_w)); // player 1 & 2 inputs multiplexed
map(0x3001, 0x3001).portr("DSW1").w("soundlatch", FUNC(generic_latch_8_device::write));
map(0x3002, 0x3002).portr("DSW2").w("soundlatch2", FUNC(generic_latch_8_device::write));
map(0x3004, 0x3005).nopr().writeonly().share(m_scroll);
map(0x3007, 0x3007).r(FUNC(citycon_state::irq_ack_r));
map(0x3800, 0x3cff).ram().w(m_palette, FUNC(palette_device::write8)).share("palette");
map(0x4000, 0xffff).rom();
}
void citycon_state::sound_map(address_map &map)
{
map(0x0000, 0x0fff).ram();
map(0x4000, 0x4001).w("aysnd", FUNC(ay8910_device::address_data_w));
map(0x4002, 0x4002).r("aysnd", FUNC(ay8910_device::data_r));
map(0x6000, 0x6001).rw("ymsnd", FUNC(ym2203_device::read), FUNC(ym2203_device::write));
map(0x8000, 0xffff).rom();
}
static INPUT_PORTS_START( citycon )
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_RIGHT ) PORT_8WAY
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) 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_START1 )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 )
PORT_START("P2")
PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_START("DSW1")
PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:1,2")
PORT_DIPSETTING( 0x00, "3" )
PORT_DIPSETTING( 0x01, "4" )
PORT_DIPSETTING( 0x02, "5" )
PORT_DIPSETTING( 0x03, "Infinite (Cheat)")
PORT_DIPUNKNOWN_DIPLOC( 0x04, 0x00, "SW1:3" )
PORT_DIPUNKNOWN_DIPLOC( 0x08, 0x00, "SW1:4" )
PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x00, "SW1:5" )
PORT_DIPNAME( 0x20, 0x00, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW1:6")
PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPNAME( 0x40, 0x00, DEF_STR( Cabinet ) ) PORT_DIPLOCATION("SW1:7")
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x40, DEF_STR( Cocktail ) )
// the coin input must stay low for exactly 2 frames to be consistently recognized.
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2)
PORT_START("DSW2")
PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coinage ) ) PORT_DIPLOCATION("SW2:1,2,3")
PORT_DIPSETTING( 0x07, DEF_STR( 5C_1C ) )
PORT_DIPSETTING( 0x06, DEF_STR( 4C_1C ) )
PORT_DIPSETTING( 0x05, DEF_STR( 3C_1C ) )
PORT_DIPSETTING( 0x04, DEF_STR( 2C_1C ) )
PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) )
PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) )
PORT_DIPSETTING( 0x03, DEF_STR( 1C_4C ) )
PORT_DIPNAME( 0x08, 0x00, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:4")
PORT_DIPSETTING( 0x00, DEF_STR( Easy ) )
PORT_DIPSETTING( 0x08, DEF_STR( Hard ) )
PORT_DIPUNKNOWN_DIPLOC( 0x10, 0x00, "SW2:5" )
PORT_DIPUNKNOWN_DIPLOC( 0x20, 0x00, "SW2:6" )
PORT_DIPUNKNOWN_DIPLOC( 0x40, 0x00, "SW2:7" )
// According to manual this is Flip Screen setting
// PORT_DIPNAME( 0x80, 0x80, DEF_STR( Flip Screen ) ) PORT_DIPLOCATION("SW2:8")
// PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
// PORT_DIPSETTING( 0x00, DEF_STR( On ) )
PORT_DIPUNKNOWN_DIPLOC( 0x80, 0x80, "SW2:8" )
INPUT_PORTS_END
static const gfx_layout charlayout =
{
8,8,
RGN_FRAC(1,2),
5,
{ 16, 12, 8, 4, 0 },
{ 0, 1, 2, 3, RGN_FRAC(1,2)+0, RGN_FRAC(1,2)+1, RGN_FRAC(1,2)+2, RGN_FRAC(1,2)+3 },
{ 0*24, 1*24, 2*24, 3*24, 4*24, 5*24, 6*24, 7*24 },
24*8
};
static const gfx_layout tilelayout =
{
8,8, // 8*8 characters
256, // 256 characters
4, // 4 bits per pixel */
{ 4, 0, 0xc000*8+4, 0xc000*8+0 },
{ 0, 1, 2, 3, 256*8*8+0, 256*8*8+1, 256*8*8+2, 256*8*8+3 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
8*8 // every char takes 8 consecutive bytes
};
static const gfx_layout spritelayout =
{
8,16, // 8*16 sprites
128, // 128 sprites
4, // 4 bits per pixel
{ 4, 0, 0x2000*8+4, 0x2000*8+0 },
{ 0, 1, 2, 3, 128*16*8+0, 128*16*8+1, 128*16*8+2, 128*16*8+3 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8,
8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
16*8 // every sprite takes 16 consecutive bytes
};
static GFXDECODE_START( gfx_citycon )
// GFXDECODE_ENTRY( "chars", 0x00000, charlayout, 512, 32 ) // colors 512-639
GFXDECODE_ENTRY( "chars", 0x00000, charlayout, 640, 32 ) // colors 512-639
GFXDECODE_ENTRY( "sprites", 0x00000, spritelayout, 0, 16 ) // colors 0-255
GFXDECODE_ENTRY( "sprites", 0x01000, spritelayout, 0, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x00000, tilelayout, 256, 16 ) // colors 256-511
GFXDECODE_ENTRY( "bgtiles1", 0x01000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x02000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x03000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x04000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x05000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x06000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x07000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x08000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x09000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x0a000, tilelayout, 256, 16 )
GFXDECODE_ENTRY( "bgtiles1", 0x0b000, tilelayout, 256, 16 )
GFXDECODE_END
void citycon_state::machine_start()
{
save_item(NAME(m_bg_image));
}
void citycon_state::machine_reset()
{
m_bg_image = 0;
}
void citycon_state::citycon(machine_config &config)
{
constexpr XTAL MASTER_CLOCK = 20_MHz_XTAL;
constexpr XTAL PIXEL_CLOCK = MASTER_CLOCK / 4; // guess
constexpr XTAL CPU_CLOCK = 8_MHz_XTAL;
// also a guess, need to extract PAL equations to get further answers
constexpr int HTOTAL = 320;
constexpr int HBEND = 8;
constexpr int HBSTART = 248;
constexpr int VTOTAL = 262;
constexpr int VBEND = 16;
constexpr int VBSTART = 240;
// basic machine hardware
MC6809(config, m_maincpu, CPU_CLOCK); // HD68B09P
m_maincpu->set_addrmap(AS_PROGRAM, &citycon_state::main_map);
m_maincpu->set_vblank_int("screen", FUNC(citycon_state::irq0_line_assert));
mc6809e_device &audiocpu(MC6809E(config, "audiocpu", MASTER_CLOCK / 32)); // schematics allow for either a 6809 or 6809E; HD68A09EP found on one actual PCB
audiocpu.set_addrmap(AS_PROGRAM, &citycon_state::sound_map);
audiocpu.set_vblank_int("screen", FUNC(citycon_state::irq0_line_hold)); // actually unused, probably it was during development
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_raw(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART);
screen.set_screen_update(FUNC(citycon_state::screen_update));
screen.set_palette(m_palette);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_citycon);
PALETTE(config, m_palette, palette_device::BLACK).set_format(palette_device::RGBx_444, 640+1024); // 640 real palette + 1024 virtual palette
// sound hardware
SPEAKER(config, "mono").front_center();
GENERIC_LATCH_8(config, "soundlatch");
GENERIC_LATCH_8(config, "soundlatch2");
AY8910(config, "aysnd", MASTER_CLOCK / 16).add_route(ALL_OUTPUTS, "mono", 0.40); // schematics consistently specify AY-3-8910, though YM2149 found on one actual PCB
ym2203_device &ymsnd(YM2203(config, "ymsnd", MASTER_CLOCK / 16));
ymsnd.port_a_read_callback().set("soundlatch", FUNC(generic_latch_8_device::read));
ymsnd.port_b_read_callback().set("soundlatch2", FUNC(generic_latch_8_device::read));
ymsnd.add_route(0, "mono", 0.40);
ymsnd.add_route(1, "mono", 0.40);
ymsnd.add_route(2, "mono", 0.40);
ymsnd.add_route(3, "mono", 0.20);
}
/***************************************************************************
Game driver(s)
***************************************************************************/
ROM_START( citycon )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "c10", 0x4000, 0x4000, CRC(ae88b53c) SHA1(dd12310bd9c9b93462446e8e0a1c853506bf3aa1) )
ROM_LOAD( "c11", 0x8000, 0x8000, CRC(139eb1aa) SHA1(c570e8ca1499f7ea61938e78c32c1cc3050ca2b7) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) )
ROM_REGION( 0x03000, "chars", 0 )
ROM_LOAD( "c4", 0x00000, 0x2000, CRC(a6b32fc6) SHA1(d99d5a527440e9a91525c1084b95b213e3b760ec) )
ROM_REGION( 0x04000, "sprites", 0 )
ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) )
ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) )
ROM_REGION( 0x18000, "bgtiles1", 0 )
ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) )
ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) )
ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) )
ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) )
ROM_REGION( 0xe000, "bgtiles2", 0 )
ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) // background maps
ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) )
ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) // color codes for the background
ROM_END
ROM_START( citycona )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "c10", 0x4000, 0x4000, CRC(ae88b53c) SHA1(dd12310bd9c9b93462446e8e0a1c853506bf3aa1) )
ROM_LOAD( "c11b", 0x8000, 0x8000, CRC(d64af468) SHA1(5bb3541af3ce632e8eca313231205713d72fb9dc) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) )
ROM_REGION( 0x03000, "chars", 0 )
ROM_LOAD( "c4", 0x00000, 0x2000, CRC(a6b32fc6) SHA1(d99d5a527440e9a91525c1084b95b213e3b760ec) )
ROM_REGION( 0x04000, "sprites", 0 )
ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) )
ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) )
ROM_REGION( 0x18000, "bgtiles1", 0 )
ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) )
ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) )
ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) )
ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) )
ROM_REGION( 0xe000, "bgtiles2", 0 )
ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) // background maps
ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) )
ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) // color codes for the background
// stuff below isn't used but loaded because it was on the board ..
ROM_REGION( 0x0600, "proms", 0 )
ROM_LOAD( "citycon_82s123n.n5", 0x0000, 0x0020, CRC(5ae142a3) SHA1(ba25c9bcbc4936a6b7f402addab50b75dbe519ce) )
ROM_LOAD( "citycon_82s123n.r4", 0x0100, 0x0020, CRC(29221e13) SHA1(232fd02811f157197c7ce44716dc495ed49a80cc) )
ROM_LOAD( "citycon_82s129.l6", 0x0200, 0x0100, CRC(91a7b6e3) SHA1(6135b264a69978d17aa8636d24eb1eba41d16c89) )
// Same PROM content on J10 and L6 sockets
//ROM_LOAD( "citycon_82s129.j10", 0x0300, 0x0100, CRC(91a7b6e3) SHA1(6135b264a69978d17aa8636d24eb1eba41d16c89) )
ROM_REGION( 0x0600, "plds", 0 )
ROM_LOAD( "citycon_pal16l8a.h7", 0x0000, 0x0104, CRC(24a0f5d4) SHA1(69007ccbe1966b1a1d4378fe06e102598c3cdb09) )
ROM_LOAD( "citycon_pal16l8a.l5", 0x0200, 0x0104, CRC(dd0cf771) SHA1(4483da095ce7633d8e0c90f181a54ace19a6e87d) )
ROM_LOAD( "citycon_pal16l8a.u7", 0x0400, 0x0104, CRC(08d4ff84) SHA1(10a2b985e0866661c4f0ce4297f728f07540e9b6) )
ROM_END
ROM_START( cruisin )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "cr10", 0x4000, 0x4000, CRC(cc7c52f3) SHA1(69d76f146fb1dac62c6def3a4269012b3880f03b) )
ROM_LOAD( "cr11", 0x8000, 0x8000, CRC(5422f276) SHA1(d384fc4f853fe79b73e939a8fc7b7af780659c5e) )
ROM_REGION( 0x10000, "audiocpu", 0 )
ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) )
ROM_REGION( 0x03000, "chars", 0 )
ROM_LOAD( "cr4", 0x00000, 0x2000, CRC(8cd0308e) SHA1(7303b9e074bda557d64b39e04cef0f965a756be6) )
ROM_REGION( 0x04000, "sprites", 0 )
ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) )
ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) )
ROM_REGION( 0x18000, "bgtiles1", 0 )
ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) )
ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) )
ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) )
ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) )
ROM_REGION( 0xe000, "bgtiles2", 0 )
ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) // background maps
ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) )
ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) // color codes for the background
ROM_END
void citycon_state::init_citycon()
{
uint8_t *rom = memregion("chars")->base();
/*
City Connection controls the text color code for each _scanline_, not
for each character as happens in most games. To handle that conveniently,
I convert the 2bpp char data into 5bpp, and create a virtual palette so
characters can still be drawn in one pass.
*/
for (int i = 0x0fff; i >= 0; i--)
{
rom[3 * i] = rom[i];
rom[3 * i + 1] = 0;
rom[3 * i + 2] = 0;
int mask = rom[i] | (rom[i] << 4) | (rom[i] >> 4);
if (i & 0x01) rom[3 * i + 1] |= mask & 0xf0;
if (i & 0x02) rom[3 * i + 1] |= mask & 0x0f;
if (i & 0x04) rom[3 * i + 2] |= mask & 0xf0;
}
}
} // anonymous namespace
GAME( 1985, citycon, 0, citycon, citycon, citycon_state, init_citycon, ROT0, "Jaleco", "City Connection (set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1985, citycona, citycon, citycon, citycon, citycon_state, init_citycon, ROT0, "Jaleco", "City Connection (set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1985, cruisin, citycon, citycon, citycon, citycon_state, init_citycon, ROT0, "Jaleco (Kitkorp license)", "Cruisin", MACHINE_SUPPORTS_SAVE )