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+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+/*******************************************************************************
+ Shadow Force (c)1993 Technos
+ Preliminary Driver by David Haywood
+ Based on the Various Other Technos Games
+********************************************************************************
+
+Stephh's notes :
+
+ - As for some other M68000 Technos games (or games running on similar hardware
+ such as 'mugsmash'), the Inputs and the Dip Switches are mangled, so you need
+ a specific read handler so end-users can see them in a "standard" order.
+
+ 01-Sept-2008 - Pierpaolo Prazzoli
+ - Added irqs ack
+ - Implemented raster irq
+ - Fixed coin2 and service input not working during the game
+ - Added watchdog
+ - Fixed visible area
+ - Added video enable and irqs enable flags
+
+
+*******************************************************************************
+
+Shadow Force
+Technos 1993
+
+PCB Layout
+----------
+
+TA-0032-P1-24
+MADE IN JAPAN
+|--------------------------------------------------------|
+|LA4460 MB3615 YM3012 3.579545MHz 32J8-0.32 |
+|VOL MB3615 YM2151 Z80 32J7-0.25 |
+| M6295 32J6-0.24 |
+| 32J9-0.76 32J10.42 32J5-0.13 |
+| 6116 32J4-0.12 |
+| |-------| |
+| |TECHNOS| |
+|J 62256 |TJ-005 | |
+|A 62256 13.4952MHz | | |
+|M 62256 28MHz |-------| |
+|M 32J11-0.55 6116 |
+|A |-------| |-------| 6116 |
+| |TECHNOS| |TECHNOS| |
+| |TJ-004 | |TJ-002 | 32J3-0.6 |
+|DSW3 | | | | 32J2-0.5 |
+|DSW2 |-------| |-------| 32J1-0.4 |
+|DSW1 32A12-0.34 |
+|CN2 32A14-0.33 |
+| 62256 32A13-0.26 62256 A1010 |
+| 68000 62256 32J15-0.14 62256 |
+|--------------------------------------------------------|
+Notes:
+ 68000 - Clock 14.000MHz [28/2]
+ Z80 - Clock 3.579545MHz
+ YM2151 - Clock 3.579545MHz
+ YM3012 - Clock 1.7897725MHz [3.579545/2]
+ M6295 - Clock 1.6869MHz [13.4952/8]. Pin 7 HIGH (5.0V)
+ A1010 - Actel A1010A-1 FPGA labelled 'TJ32A 92.11.30' (PLCC68)
+ LA4460 - Audio Power Amp
+ CN2 - 9 pin connector for extra buttons
+ MB3615 - Fujitsu MB3615 Quad Operational Amplifier (like TL074 except pin 11 tied to GND, not -5V)
+ 6116 - 2k x8 SRAM (DIP24)
+ 62256 - 32k x8 SRAM (DIP28)
+ DSW1/2/3 - 8-position dip switches
+
+ ROMs
+ ----
+ 32J1 to 32J8 - 16M mask ROM (DIP42)
+ 32A12/13/14/J15 - 27C2001 EPROM (DIP32)
+ 32J9 - 4M mask ROM (DIP32)
+ 32J10 - 27C512 EPROM (DIP28)
+ 32J11 - 27C010 EPROM (DIP32)
+
+ Measurements
+ ------------
+ X1 - 27.99987MHz
+ X2 - 3.57899MHz
+ X4 - 13.4894MHz
+ VSync - 57.4446Hz
+ HSync - 15.6248kHz
+
+-- Read Me --
+
+Shadow Force (c)1993 Technos
+TA-0032-P1-23 (Japan version is TA-0032-P1-24)
+
+CPU: TMP68HC000P-16
+Sound: Z80, YM2151, YM3012, OKI6295, MB3615 (x2)
+Custom: Actel A1010A-1 (TJ32A 92.11.30), TJ-002, TJ-004, TJ-005
+
+X1: 28 MHz
+X2: 3.579545 MHz
+X4: 13.4952 MHz
+
+ROMs:
+
+Program:
+32A12-01.34 = 27C2001
+32A14-0.33 = 27C2001
+32A13-01.26 = 27C2001
+32A15-0.14 = 27C2001
+
+Char:
+32A11-0.55 = 27C010
+
+Backgrounds:
+32J1-0.4 = 8meg mask
+32J2-0.5 = 8meg mask
+32J3-0.6 = 8meg mask
+
+Sprites:
+32J4-0.12 = 16meg mask
+32J5-0.13 = 16meg mask
+32J6-0.24 = 16meg mask
+32J7-0.25 = 16meg mask
+32J8-0.32 = 16meg mask
+
+Sound CPU:
+32J10.42 = 27C512
+
+Samples:
+32J9-0.76 = 27C040
+
+*******************************************************************************/
+
+
+/*
+68k interrupts
+lev 1 : 0x64 : 0004 fd00 - raster irq
+lev 2 : 0x68 : 0000 1f32 - inputs irq (reads inputs, ...)
+lev 3 : 0x6c : 0000 10f4 - vblank irq
+lev 4 : 0x70 : 0000 11d0 - just rte
+lev 5 : 0x74 : 0000 11d0 - just rte
+lev 6 : 0x78 : 0000 11d0 - just rte
+lev 7 : 0x7c : 0000 11d0 - just rte
+*/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/m68000/m68000.h"
+#include "sound/2151intf.h"
+#include "includes/shadfrce.h"
+
+
+WRITE16_MEMBER(shadfrce_state::flip_screen)
+{
+ flip_screen_set(data & 0x01);
+}
+
+
+/* Ports mapping :
+
+ $1d0020.w : 0123456789ABCDEF
+ x--------------- right (player 1)
+ -x-------------- left (player 1)
+ --x------------- up (player 1)
+ ---x------------ down (player 1)
+ ----x----------- button 1 (player 1)
+ -----x---------- button 2 (player 1)
+ ------x--------- button 3 (player 1)
+ -------x-------- start (player 1)
+ --------x------- coin 1
+ ---------x------ coin 2 *
+ ----------x----- service 1 *
+ -----------x---- unused
+ ------------x--- DIP2-7
+ -------------x-- DIP2-8
+ --------------x- unused
+ ---------------x unused
+
+ $1d0022.w : 0123456789ABCDEF
+ x--------------- right (player 2)
+ -x-------------- left (player 2)
+ --x------------- up (player 2)
+ ---x------------ down (player 2)
+ ----x----------- button 1 (player 2)
+ -----x---------- button 2 (player 2)
+ ------x--------- button 3 (player 2)
+ -------x-------- start (player 2)
+ --------x------- DIP2-1 ("Difficulty")
+ ---------x------ DIP2-2 ("Difficulty")
+ ----------x----- DIP2-3 ("Stage Clear Energy Regain")
+ -----------x---- DIP2-4 ("Stage Clear Energy Regain")
+ ------------x--- DIP2-5
+ -------------x-- DIP2-6
+ --------------x- unused
+ ---------------x unused
+
+ $1d0024.w : 0123456789ABCDEF
+ x--------------- button 4 (player 1)
+ -x-------------- button 5 (player 1)
+ --x------------- button 6 (player 1)
+ ---x------------ button 4 (player 2)
+ ----x----------- button 5 (player 2)
+ -----x---------- button 6 (player 2)
+ ------x--------- unused
+ -------x-------- unused
+ --------x------- DIP1-1
+ ---------x------ DIP1-2 ("Coin(s) for Credit(s)")
+ ----------x----- DIP1-3 ("Coin(s) for Credit(s)")
+ -----------x---- DIP1-4 (DEF_STR( Continue_Price ))
+ ------------x--- DIP1-5 ("Free Play")
+ -------------x-- DIP1-6 ("Flip Screen")
+ --------------x- unused
+ ---------------x unused
+
+ $1d0026.w : 0123456789ABCDEF
+ x--------------- unused
+ -x-------------- unused
+ --x------------- unused
+ ---x------------ unused
+ ----x----------- unused
+ -----x---------- unused
+ ------x--------- unused
+ -------x-------- unused
+ --------x------- DIP 1-7 ("Demo Sound")
+ ---------x------ DIP 1-8 ("Test Mode")
+ ----------x----- vblank?
+ -----------x---- unused
+ ------------x--- unknown
+ -------------x-- unused
+ --------------x- unused
+ ---------------x unused
+
+ * only available when you are in "test mode"
+
+*/
+
+
+READ16_MEMBER(shadfrce_state::input_ports_r)
+{
+ UINT16 data = 0xffff;
+
+ switch (offset)
+ {
+ case 0 :
+ data = (m_io_p1->read() & 0xff) | ((m_io_dsw2->read() & 0xc0) << 6) | ((m_io_system->read() & 0x0f) << 8);
+ break;
+ case 1 :
+ data = (m_io_p2->read() & 0xff) | ((m_io_dsw2->read() & 0x3f) << 8);
+ break;
+ case 2 :
+ data = (m_io_extra->read() & 0xff) | ((m_io_dsw1->read() & 0x3f) << 8);
+ break;
+ case 3 :
+ data = (m_io_other->read() & 0xff) | ((m_io_dsw1->read() & 0xc0) << 2) | ((m_io_misc->read() & 0x38) << 8) | (m_vblank << 8);
+ break;
+ }
+
+ return (data);
+}
+
+
+WRITE16_MEMBER(shadfrce_state::sound_brt_w)
+{
+ if (ACCESSING_BITS_8_15)
+ {
+ soundlatch_byte_w(space, 1, data >> 8);
+ m_audiocpu->set_input_line(INPUT_LINE_NMI, PULSE_LINE );
+ }
+ else
+ {
+ int i;
+ double brt = (data & 0xff) / 255.0;
+
+ for (i = 0; i < 0x4000; i++)
+ m_palette->set_pen_contrast(i, brt);
+ }
+}
+
+WRITE16_MEMBER(shadfrce_state::irq_ack_w)
+{
+ m_maincpu->set_input_line(offset ^ 3, CLEAR_LINE);
+}
+
+WRITE16_MEMBER(shadfrce_state::irq_w)
+{
+ m_irqs_enable = data & 1; /* maybe, it's set/unset inside every trap instruction which is executed */
+ m_video_enable = data & 8; /* probably */
+
+ /* check if there's a high transition to enable the raster IRQ */
+ if((~m_prev_value & 4) && (data & 4))
+ {
+ m_raster_irq_enable = 1;
+ }
+
+ /* check if there's a low transition to disable the raster IRQ */
+ if((m_prev_value & 4) && (~data & 4))
+ {
+ m_raster_irq_enable = 0;
+ }
+
+ m_prev_value = data;
+}
+
+WRITE16_MEMBER(shadfrce_state::scanline_w)
+{
+ m_raster_scanline = data; /* guess, 0 is always written */
+}
+
+TIMER_DEVICE_CALLBACK_MEMBER(shadfrce_state::scanline)
+{
+ int scanline = param;
+
+ /* Vblank is lowered on scanline 0 */
+ if (scanline == 0)
+ {
+ m_vblank = 0;
+ }
+ /* Hack */
+ else if (scanline == (248-1)) /* -1 is an hack needed to avoid deadlocks */
+ {
+ m_vblank = 4;
+ }
+
+ /* Raster interrupt - Perform raster effect on given scanline */
+ if (m_raster_irq_enable)
+ {
+ if (scanline == m_raster_scanline)
+ {
+ m_raster_scanline = (m_raster_scanline + 1) % 240;
+ if (m_raster_scanline > 0)
+ m_screen->update_partial(m_raster_scanline - 1);
+ m_maincpu->set_input_line(1, ASSERT_LINE);
+ }
+ }
+
+ /* An interrupt is generated every 16 scanlines */
+ if (m_irqs_enable)
+ {
+ if (scanline % 16 == 0)
+ {
+ if (scanline > 0)
+ m_screen->update_partial(scanline - 1);
+ m_maincpu->set_input_line(2, ASSERT_LINE);
+ }
+ }
+
+ /* Vblank is raised on scanline 248 */
+ if (m_irqs_enable)
+ {
+ if (scanline == 248)
+ {
+ m_screen->update_partial(scanline - 1);
+ m_maincpu->set_input_line(3, ASSERT_LINE);
+ }
+ }
+}
+
+
+
+/* Memory Maps */
+
+static ADDRESS_MAP_START( shadfrce_map, AS_PROGRAM, 16, shadfrce_state )
+ AM_RANGE(0x000000, 0x0fffff) AM_ROM
+ AM_RANGE(0x100000, 0x100fff) AM_RAM_WRITE(bg0videoram_w) AM_SHARE("bg0videoram") /* video */
+ AM_RANGE(0x101000, 0x101fff) AM_RAM
+ AM_RANGE(0x102000, 0x1027ff) AM_RAM_WRITE(bg1videoram_w) AM_SHARE("bg1videoram") /* bg 2 */
+ AM_RANGE(0x102800, 0x103fff) AM_RAM
+ AM_RANGE(0x140000, 0x141fff) AM_RAM_WRITE(fgvideoram_w) AM_SHARE("fgvideoram")
+ AM_RANGE(0x142000, 0x143fff) AM_RAM AM_SHARE("spvideoram") /* sprites */
+ AM_RANGE(0x180000, 0x187fff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
+ AM_RANGE(0x1c0000, 0x1c0001) AM_WRITE(bg0scrollx_w) /* SCROLL X */
+ AM_RANGE(0x1c0002, 0x1c0003) AM_WRITE(bg0scrolly_w) /* SCROLL Y */
+ AM_RANGE(0x1c0004, 0x1c0005) AM_WRITE(bg1scrollx_w) /* SCROLL X */
+ AM_RANGE(0x1c0006, 0x1c0007) AM_WRITE(bg1scrolly_w) /* SCROLL Y */
+ AM_RANGE(0x1c0008, 0x1c0009) AM_WRITENOP /* ?? */
+ AM_RANGE(0x1c000a, 0x1c000b) AM_READNOP AM_WRITE(flip_screen)
+ AM_RANGE(0x1c000c, 0x1c000d) AM_WRITENOP /* ?? */
+ AM_RANGE(0x1d0000, 0x1d0005) AM_WRITE(irq_ack_w)
+ AM_RANGE(0x1d0006, 0x1d0007) AM_WRITE(irq_w)
+ AM_RANGE(0x1d0008, 0x1d0009) AM_WRITE(scanline_w)
+ AM_RANGE(0x1d000c, 0x1d000d) AM_READNOP AM_WRITE(sound_brt_w) /* sound command + screen brightness */
+ AM_RANGE(0x1d0010, 0x1d0011) AM_WRITENOP /* ?? */
+ AM_RANGE(0x1d0012, 0x1d0013) AM_WRITENOP /* ?? */
+ AM_RANGE(0x1d0014, 0x1d0015) AM_WRITENOP /* ?? */
+ AM_RANGE(0x1d0016, 0x1d0017) AM_WRITE(watchdog_reset16_w)
+ AM_RANGE(0x1d0020, 0x1d0027) AM_READ(input_ports_r)
+ AM_RANGE(0x1f0000, 0x1fffff) AM_RAM
+ADDRESS_MAP_END
+
+/* and the sound cpu */
+
+WRITE8_MEMBER(shadfrce_state::oki_bankswitch_w)
+{
+ m_oki->set_bank_base((data & 1) * 0x40000);
+}
+
+static ADDRESS_MAP_START( shadfrce_sound_map, AS_PROGRAM, 8, shadfrce_state )
+ AM_RANGE(0x0000, 0xbfff) AM_ROM
+ AM_RANGE(0xc000, 0xc7ff) AM_RAM
+ AM_RANGE(0xc800, 0xc801) AM_DEVREADWRITE("ymsnd", ym2151_device, read, write)
+ AM_RANGE(0xd800, 0xd800) AM_DEVREADWRITE("oki", okim6295_device, read, write)
+ AM_RANGE(0xe000, 0xe000) AM_READ(soundlatch_byte_r)
+ AM_RANGE(0xe800, 0xe800) AM_WRITE(oki_bankswitch_w)
+ AM_RANGE(0xf000, 0xffff) AM_RAM
+ADDRESS_MAP_END
+
+
+/* Input Ports */
+
+/* Similar to MUGSMASH_PLAYER_INPUT in drivers/mugsmash.c */
+#define SHADFRCE_PLAYER_INPUT( player, start ) \
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(player) PORT_8WAY \
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(player) PORT_8WAY \
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(player) PORT_8WAY \
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(player) PORT_8WAY \
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(player) \
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(player) \
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(player) \
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, start )
+
+
+static INPUT_PORTS_START( shadfrce )
+ PORT_START("P1") /* Fake IN0 (player 1 inputs) */
+ SHADFRCE_PLAYER_INPUT( 1, IPT_START1 )
+
+ PORT_START("P2") /* Fake IN1 (player 2 inputs) */
+ SHADFRCE_PLAYER_INPUT( 2, IPT_START2 )
+
+ PORT_START("EXTRA") /* Fake IN2 (players 1 & 2 extra inputs */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) PORT_PLAYER(2)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON5 ) PORT_PLAYER(2)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON6 ) PORT_PLAYER(2)
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("OTHER") /* Fake IN3 (other extra inputs ?) */
+ PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("SYSTEM") /* Fake IN4 (system inputs) */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) /* only in "test mode" ? */
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SERVICE1 ) /* only in "test mode" ? */
+ PORT_BIT( 0xf8, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("MISC") /* Fake IN5 (misc) */
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_SPECIAL ) /* guess */
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) /* must be ACTIVE_LOW or 'shadfrcj' jumps to the end (code at 0x04902e) */
+ PORT_BIT( 0xeb, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("DSW1") /*DSW1, not mapped directly */
+ PORT_DIPNAME( 0x01, 0x01, "Unused DIP 1-1" )
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x06, 0x06, DEF_STR( Coinage ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) )
+ PORT_DIPNAME( 0x08, 0x08, DEF_STR( Continue_Price ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Free_Play ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, DEF_STR( Flip_Screen ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
+
+ PORT_START("DSW2") /* DSW2, not mapped directly */
+ PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Easy ) )
+ PORT_DIPSETTING( 0x03, DEF_STR( Normal ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( Hard ) ) /* "Advanced" */
+ PORT_DIPSETTING( 0x00, DEF_STR( Hardest ) ) /* "Expert" */
+ PORT_DIPNAME( 0x0c, 0x0c, "Stage Clear Energy Regain" )
+ PORT_DIPSETTING( 0x04, "50%" )
+ PORT_DIPSETTING( 0x0c, "25%" )
+ PORT_DIPSETTING( 0x08, "10%" )
+ PORT_DIPSETTING( 0x00, "0%" )
+ PORT_DIPNAME( 0x10, 0x10, "Unused DIP 2-5" )
+ PORT_DIPSETTING( 0x10, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x20, 0x20, "Unused DIP 2-6" )
+ PORT_DIPSETTING( 0x20, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x40, "Unused DIP 2-7" )
+ PORT_DIPSETTING( 0x40, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x80, "Unused DIP 2-8" )
+ PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+INPUT_PORTS_END
+
+/* Graphic Decoding */
+
+static const gfx_layout fg8x8x4_layout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 2, 4, 6 },
+ { 1, 0, 8*8+1, 8*8+0, 16*8+1, 16*8+0, 24*8+1, 24*8+0 },
+ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
+ 4*8*8
+};
+
+static const gfx_layout sp16x16x5_layout =
+{
+ 16,16,
+ RGN_FRAC(1,5),
+ 5,
+ { RGN_FRAC(4,5), RGN_FRAC(3,5), RGN_FRAC(2,5), RGN_FRAC(1,5), RGN_FRAC(0,5) },
+ { STEP8(0,1), STEP8(16*8,1) },
+ { STEP16(0,8) },
+ 16*16
+};
+
+static const gfx_layout bg16x16x6_layout =
+{
+ 16,16,
+ RGN_FRAC(1,3),
+ 6,
+ { RGN_FRAC(0,3)+8, RGN_FRAC(0,3), RGN_FRAC(1,3)+8, RGN_FRAC(1,3), RGN_FRAC(2,3)+8, RGN_FRAC(2,3) },
+ { STEP8(0,1), STEP8(16*16,1) },
+ { STEP16(0,16) },
+ 2*16*16
+};
+
+static GFXDECODE_START( shadfrce )
+ GFXDECODE_ENTRY( "chars", 0, fg8x8x4_layout, 0x0000, 256 )
+ GFXDECODE_ENTRY( "sprites", 0, sp16x16x5_layout, 0x1000, 128 )
+ GFXDECODE_ENTRY( "tiles", 0, bg16x16x6_layout, 0x2000, 128 )
+GFXDECODE_END
+
+/* Machine Driver Bits */
+
+static MACHINE_CONFIG_START( shadfrce, shadfrce_state )
+
+ MCFG_CPU_ADD("maincpu", M68000, XTAL_28MHz / 2) /* verified on pcb */
+ MCFG_CPU_PROGRAM_MAP(shadfrce_map)
+ MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", shadfrce_state, scanline, "screen", 0, 1)
+
+ MCFG_CPU_ADD("audiocpu", Z80, XTAL_3_579545MHz) /* verified on pcb */
+ MCFG_CPU_PROGRAM_MAP(shadfrce_sound_map)
+
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_RAW_PARAMS(XTAL_28MHz / 4, 448, 0, 320, 272, 8, 248) /* HTOTAL and VTOTAL are guessed */
+ MCFG_SCREEN_UPDATE_DRIVER(shadfrce_state, screen_update)
+ MCFG_SCREEN_VBLANK_DRIVER(shadfrce_state, screen_eof)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", shadfrce)
+ MCFG_PALETTE_ADD("palette", 0x4000)
+ MCFG_PALETTE_FORMAT(xBBBBBGGGGGRRRRR)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_YM2151_ADD("ymsnd", XTAL_3_579545MHz) /* verified on pcb */
+ MCFG_YM2151_IRQ_HANDLER(INPUTLINE("audiocpu", 0))
+ MCFG_SOUND_ROUTE(0, "lspeaker", 0.50)
+ MCFG_SOUND_ROUTE(1, "rspeaker", 0.50)
+
+ MCFG_OKIM6295_ADD("oki", XTAL_13_4952MHz/8, OKIM6295_PIN7_HIGH) /* verified on pcb */
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50)
+MACHINE_CONFIG_END
+
+/* Rom Defs. */
+
+ROM_START( shadfrce )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "32a12-01.34", 0x00001, 0x40000, CRC(04501198) SHA1(50f981c13f9ed19d681d494376018ba86464ea13) ) /* US Version 2 */
+ ROM_LOAD16_BYTE( "32a13-01.26", 0x00000, 0x40000, CRC(b8f8a05c) SHA1(bd9d4218a7cf57b56aec1f7e710e02af8471f9d7) )
+ ROM_LOAD16_BYTE( "32a14-0.33", 0x80001, 0x40000, CRC(08279be9) SHA1(1833526b23feddb58b21874070ad2bf3b6be8dca) )
+ ROM_LOAD16_BYTE( "32a15-0.14", 0x80000, 0x40000, CRC(bfcadfea) SHA1(1caa9fc30d8622ce4c7221039c446e99cc8f5346) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "32j10-0.42", 0x00000, 0x10000, CRC(65daf475) SHA1(7144332b2d17af8645e22e1926b33113db0d20e2) )
+
+ ROM_REGION( 0x020000, "chars", 0 ) /* Chars */
+ ROM_LOAD( "32a11-0.55", 0x00000, 0x20000, CRC(cfaf5e77) SHA1(eab76e085f695c74cc868aaf95f04ff2acf66ee9) )
+
+ ROM_REGION( 0xa00000, "sprites", 0 ) /* Sprite Tiles */
+ ROM_LOAD( "32j4-0.12", 0x000000, 0x200000, CRC(1ebea5b6) SHA1(35bd49dda9ad75326d45ffb10c87d83fc4f1b7a8) )
+ ROM_LOAD( "32j5-0.13", 0x200000, 0x200000, CRC(600026b5) SHA1(5641246300d7e20dcff1eae004647faaee6cd1c6) )
+ ROM_LOAD( "32j6-0.24", 0x400000, 0x200000, CRC(6cde8ebe) SHA1(750933798235951fe24b2e667c33f692612c0aa0) )
+ ROM_LOAD( "32j7-0.25", 0x600000, 0x200000, CRC(bcb37922) SHA1(f3eee73c8b9f4873a7f1cc42e334e7502eaee3c8) )
+ ROM_LOAD( "32j8-0.32", 0x800000, 0x200000, CRC(201bebf6) SHA1(c89d2895ea5b19daea1f88542419f4e10f437c73) )
+
+ ROM_REGION( 0x300000, "tiles", 0 ) /* BG Tiles */
+ ROM_LOAD( "32j1-0.4", 0x000000, 0x100000, CRC(f1cca740) SHA1(339079b95ca137e66b4f032ad67a0adf58cca100) )
+ ROM_LOAD( "32j2-0.5", 0x100000, 0x100000, CRC(5fac3e01) SHA1(20c30f4c76e303285ae37e596afe86aa4812c3b9) )
+ ROM_LOAD( "32j3-0.6", 0x200000, 0x100000, CRC(d297925e) SHA1(5bc4d37bf0dc54114884c816b94a64ef1ccfeda5) )
+
+ ROM_REGION( 0x080000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "32j9-0.76", 0x000000, 0x080000, CRC(16001e81) SHA1(67928d2024f963aee91f1498b6f4c76101d2f3b8) )
+ROM_END
+
+ROM_START( shadfrcej )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "32a12-011.34", 0x00001, 0x40000, CRC(0c041e08) SHA1(7b9d52cb1f6bc217c6e64287bd9630aa37243513) ) /* Japan Version 3 */
+ ROM_LOAD16_BYTE( "32a13-010.26", 0x00000, 0x40000, CRC(00985361) SHA1(e9da1b096b25a6ee46bab6230dda66dccdd4bed8) )
+ ROM_LOAD16_BYTE( "32a14-010.33", 0x80001, 0x40000, CRC(ea03ca25) SHA1(7af1ee7c36c70f80ba1e096473b5786b205ab00b) )
+ ROM_LOAD16_BYTE( "32j15-01.14", 0x80000, 0x40000, CRC(3dc3a84a) SHA1(166ad91b93192d94e3f6d2fe6dde02f59d334f75) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "32j10-0.42", 0x00000, 0x10000, CRC(65daf475) SHA1(7144332b2d17af8645e22e1926b33113db0d20e2) )
+
+ ROM_REGION( 0x020000, "chars", 0 ) /* Chars */
+ ROM_LOAD( "32j11-0.55", 0x00000, 0x20000, CRC(7252d993) SHA1(43f7de381841039aa290486aafb98e2cf3b8579b) )
+
+ ROM_REGION( 0xa00000, "sprites", 0 ) /* Sprite Tiles */
+ ROM_LOAD( "32j4-0.12", 0x000000, 0x200000, CRC(1ebea5b6) SHA1(35bd49dda9ad75326d45ffb10c87d83fc4f1b7a8) )
+ ROM_LOAD( "32j5-0.13", 0x200000, 0x200000, CRC(600026b5) SHA1(5641246300d7e20dcff1eae004647faaee6cd1c6) )
+ ROM_LOAD( "32j6-0.24", 0x400000, 0x200000, CRC(6cde8ebe) SHA1(750933798235951fe24b2e667c33f692612c0aa0) )
+ ROM_LOAD( "32j7-0.25", 0x600000, 0x200000, CRC(bcb37922) SHA1(f3eee73c8b9f4873a7f1cc42e334e7502eaee3c8) )
+ ROM_LOAD( "32j8-0.32", 0x800000, 0x200000, CRC(201bebf6) SHA1(c89d2895ea5b19daea1f88542419f4e10f437c73) )
+
+ ROM_REGION( 0x300000, "tiles", 0 ) /* BG Tiles */
+ ROM_LOAD( "32j1-0.4", 0x000000, 0x100000, CRC(f1cca740) SHA1(339079b95ca137e66b4f032ad67a0adf58cca100) )
+ ROM_LOAD( "32j2-0.5", 0x100000, 0x100000, CRC(5fac3e01) SHA1(20c30f4c76e303285ae37e596afe86aa4812c3b9) )
+ ROM_LOAD( "32j3-0.6", 0x200000, 0x100000, CRC(d297925e) SHA1(5bc4d37bf0dc54114884c816b94a64ef1ccfeda5) )
+
+ ROM_REGION( 0x080000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "32j9-0.76", 0x000000, 0x080000, CRC(16001e81) SHA1(67928d2024f963aee91f1498b6f4c76101d2f3b8) )
+ROM_END
+
+ROM_START( shadfrcejv2 )
+ ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
+ ROM_LOAD16_BYTE( "32j12-01.34", 0x00001, 0x40000, CRC(38fdbe1d) SHA1(476d8ef2c0d2a8c568ce44631f93f8c730f91b08) ) /* Japan Version 2 */
+ ROM_LOAD16_BYTE( "32j13-01.26", 0x00000, 0x40000, CRC(6e1df6f1) SHA1(c165553fe967b437413dd7ddc87a267548dd0ca9) )
+ ROM_LOAD16_BYTE( "32j14-01.33", 0x80001, 0x40000, CRC(89e3fb60) SHA1(90de38558d63215a0079079030e8b1097599c9e5) )
+ ROM_LOAD16_BYTE( "32j15-01.14", 0x80000, 0x40000, CRC(3dc3a84a) SHA1(166ad91b93192d94e3f6d2fe6dde02f59d334f75) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 ) /* Z80 Code */
+ ROM_LOAD( "32j10-0.42", 0x00000, 0x10000, CRC(65daf475) SHA1(7144332b2d17af8645e22e1926b33113db0d20e2) )
+
+ ROM_REGION( 0x020000, "chars", 0 ) /* Chars */
+ ROM_LOAD( "32j11-0.55", 0x00000, 0x20000, CRC(7252d993) SHA1(43f7de381841039aa290486aafb98e2cf3b8579b) )
+
+ ROM_REGION( 0xa00000, "sprites", 0 ) /* Sprite Tiles */
+ ROM_LOAD( "32j4-0.12", 0x000000, 0x200000, CRC(1ebea5b6) SHA1(35bd49dda9ad75326d45ffb10c87d83fc4f1b7a8) )
+ ROM_LOAD( "32j5-0.13", 0x200000, 0x200000, CRC(600026b5) SHA1(5641246300d7e20dcff1eae004647faaee6cd1c6) )
+ ROM_LOAD( "32j6-0.24", 0x400000, 0x200000, CRC(6cde8ebe) SHA1(750933798235951fe24b2e667c33f692612c0aa0) )
+ ROM_LOAD( "32j7-0.25", 0x600000, 0x200000, CRC(bcb37922) SHA1(f3eee73c8b9f4873a7f1cc42e334e7502eaee3c8) )
+ ROM_LOAD( "32j8-0.32", 0x800000, 0x200000, CRC(201bebf6) SHA1(c89d2895ea5b19daea1f88542419f4e10f437c73) )
+
+ ROM_REGION( 0x300000, "tiles", 0 ) /* BG Tiles */
+ ROM_LOAD( "32j1-0.4", 0x000000, 0x100000, CRC(f1cca740) SHA1(339079b95ca137e66b4f032ad67a0adf58cca100) )
+ ROM_LOAD( "32j2-0.5", 0x100000, 0x100000, CRC(5fac3e01) SHA1(20c30f4c76e303285ae37e596afe86aa4812c3b9) )
+ ROM_LOAD( "32j3-0.6", 0x200000, 0x100000, CRC(d297925e) SHA1(5bc4d37bf0dc54114884c816b94a64ef1ccfeda5) )
+
+ ROM_REGION( 0x080000, "oki", 0 ) /* Samples */
+ ROM_LOAD( "32j9-0.76", 0x000000, 0x080000, CRC(16001e81) SHA1(67928d2024f963aee91f1498b6f4c76101d2f3b8) )
+ROM_END
+
+
+GAME( 1993, shadfrce, 0, shadfrce, shadfrce, driver_device, 0, ROT0, "Technos Japan", "Shadow Force (US Version 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
+GAME( 1993, shadfrcej, shadfrce, shadfrce, shadfrce, driver_device, 0, ROT0, "Technos Japan", "Shadow Force (Japan Version 3)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )
+GAME( 1993, shadfrcejv2, shadfrce, shadfrce, shadfrce, driver_device, 0, ROT0, "Technos Japan", "Shadow Force (Japan Version 2)", MACHINE_NO_COCKTAIL | MACHINE_SUPPORTS_SAVE )