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-rw-r--r--trunk/src/mame/drivers/msisaac.c578
1 files changed, 578 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/msisaac.c b/trunk/src/mame/drivers/msisaac.c
new file mode 100644
index 00000000000..92b9bb9fbd6
--- /dev/null
+++ b/trunk/src/mame/drivers/msisaac.c
@@ -0,0 +1,578 @@
+/****************************************************************************
+
+ Metal Soldier Isaac II (c) Taito 1985
+
+ driver by Jaroslaw Burczynski
+
+****************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "cpu/m6805/m6805.h"
+#include "sound/ay8910.h"
+#include "sound/msm5232.h"
+#include "machine/buggychl.h"
+#include "includes/msisaac.h"
+
+/*
+TO DO:
+ - sprites are probably banked differently (no way to be sure until MCU dump is available)
+ - TA7630 emulation needs filter support (characteristics depend on the frequency)
+ - TA7630 volume table is hand tuned to match the sample, but still slighty off.
+*/
+
+
+static TIMER_CALLBACK( nmi_callback )
+{
+ msisaac_state *state = machine.driver_data<msisaac_state>();
+ if (state->m_sound_nmi_enable)
+ device_set_input_line(state->m_audiocpu, INPUT_LINE_NMI, PULSE_LINE);
+ else
+ state->m_pending_nmi = 1;
+}
+
+static WRITE8_HANDLER( sound_command_w )
+{
+ soundlatch_w(space, 0, data);
+ space->machine().scheduler().synchronize(FUNC(nmi_callback), data);
+}
+
+static WRITE8_HANDLER( nmi_disable_w )
+{
+ msisaac_state *state = space->machine().driver_data<msisaac_state>();
+ state->m_sound_nmi_enable = 0;
+}
+
+static WRITE8_HANDLER( nmi_enable_w )
+{
+ msisaac_state *state = space->machine().driver_data<msisaac_state>();
+ state->m_sound_nmi_enable = 1;
+ if (state->m_pending_nmi)
+ {
+ device_set_input_line(state->m_audiocpu, INPUT_LINE_NMI, PULSE_LINE);
+ state->m_pending_nmi = 0;
+ }
+}
+
+#if 0
+static WRITE8_HANDLER( flip_screen_w )
+{
+ flip_screen_set(space->machine(), data);
+}
+
+static WRITE8_HANDLER( msisaac_coin_counter_w )
+{
+ coin_counter_w(space->machine(), offset,data);
+}
+#endif
+
+static WRITE8_HANDLER( ms_unknown_w )
+{
+ if (data != 0x08)
+ popmessage("CPU #0 write to 0xf0a3 data=%2x", data);
+}
+
+
+
+
+
+/* If good MCU dump will be available, it should be fully working game */
+/* To test the game without the MCU simply comment out #define USE_MCU */
+
+
+
+static READ8_HANDLER( msisaac_mcu_r )
+{
+#ifdef USE_MCU
+ return buggychl_mcu_r(offset);
+#else
+/*
+MCU simulation TODO:
+\-Find the command which allows player-2 to play.
+\-Fix some graphics imperfections(*not* confirmed if they are caused by unhandled
+ commands or imperfect video emulation).
+*/
+ msisaac_state *state = space->machine().driver_data<msisaac_state>();
+
+ switch (state->m_mcu_val)
+ {
+ /*Start-up check*/
+ case 0x5f: return (state->m_mcu_val + 0x6b);
+ /*These interferes with RAM operations(setting them to non-zero you *
+ * will have unexpected results,such as infinite lives or score not *
+ * incremented properly).*/
+ case 0x40:
+ case 0x41:
+ case 0x42:
+ return 0;
+
+ /*With this command the MCU controls body direction */
+ case 0x02:
+ {
+ //direction:
+ //0-left
+ //1-leftup
+ //2-up
+ //3-rigtup
+ //4-right
+ //5-rightdwn
+ //6-down
+ //7-leftdwn
+
+ UINT8 val= (input_port_read(space->machine(), "IN1") >> 2) & 0x0f;
+ /* bit0 = left
+ bit1 = right
+ bit2 = down
+ bit3 = up
+ */
+ /* direction is encoded as:
+ 4
+ 3 5
+ 2 6
+ 1 7
+ 0
+ */
+ /* 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 */
+ /* nochange left right nochange down downlft dwnrght down up upleft uprgt up nochnge left right nochange */
+
+ static const INT8 table[16] = { -1, 2, 6, -1, 0, 1, 7, 0, 4, 3, 5, 4, -1, 2, 6, -1 };
+
+ if (table[val] >= 0)
+ state->m_direction = table[val];
+
+ return state->m_direction;
+ }
+
+ /*This controls the arms when they return to the player. */
+ case 0x07:
+ return 0x45;
+
+ default:
+ logerror("CPU#0 read from MCU pc=%4x, mcu_val=%2x\n", cpu_get_pc(&space->device()), state->m_mcu_val);
+ return state->m_mcu_val;
+ }
+#endif
+}
+
+static READ8_HANDLER( msisaac_mcu_status_r )
+{
+#ifdef USE_MCU
+ return buggychl_mcu_status_r(offset);
+#else
+ return 3; //mcu ready / cpu data ready
+#endif
+}
+
+static WRITE8_HANDLER( msisaac_mcu_w )
+{
+#ifdef USE_MCU
+ buggychl_mcu_w(offset,data);
+#else
+ msisaac_state *state = space->machine().driver_data<msisaac_state>();
+ //if(data != 0x0a && data != 0x42 && data != 0x02)
+ // popmessage("PC = %04x %02x", cpu_get_pc(&space->device()), data);
+ state->m_mcu_val = data;
+#endif
+}
+
+static ADDRESS_MAP_START( msisaac_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0xdfff) AM_ROM
+ AM_RANGE(0xe000, 0xe7ff) AM_RAM
+ AM_RANGE(0xe800, 0xefff) AM_RAM_WRITE(paletteram_xxxxRRRRGGGGBBBB_le_w) AM_BASE_GENERIC(paletteram)
+ AM_RANGE(0xf000, 0xf000) AM_WRITE(msisaac_bg2_textbank_w)
+ AM_RANGE(0xf001, 0xf001) AM_WRITENOP //???
+ AM_RANGE(0xf002, 0xf002) AM_WRITENOP //???
+
+ AM_RANGE(0xf060, 0xf060) AM_WRITE(sound_command_w) //sound command
+ AM_RANGE(0xf061, 0xf061) AM_WRITENOP /*sound_reset*/ //????
+
+ AM_RANGE(0xf0a3, 0xf0a3) AM_WRITE(ms_unknown_w) //???? written in interrupt routine
+
+ AM_RANGE(0xf0c0, 0xf0c0) AM_WRITE(msisaac_fg_scrollx_w)
+ AM_RANGE(0xf0c1, 0xf0c1) AM_WRITE(msisaac_fg_scrolly_w)
+ AM_RANGE(0xf0c2, 0xf0c2) AM_WRITE(msisaac_bg2_scrollx_w)
+ AM_RANGE(0xf0c3, 0xf0c3) AM_WRITE(msisaac_bg2_scrolly_w)
+ AM_RANGE(0xf0c4, 0xf0c4) AM_WRITE(msisaac_bg_scrollx_w)
+ AM_RANGE(0xf0c5, 0xf0c5) AM_WRITE(msisaac_bg_scrolly_w)
+
+ AM_RANGE(0xf0e0, 0xf0e0) AM_READWRITE(msisaac_mcu_r, msisaac_mcu_w)
+ AM_RANGE(0xf0e1, 0xf0e1) AM_READ(msisaac_mcu_status_r)
+
+ AM_RANGE(0xf080, 0xf080) AM_READ_PORT("DSW1")
+ AM_RANGE(0xf081, 0xf081) AM_READ_PORT("DSW2")
+ AM_RANGE(0xf082, 0xf082) AM_READ_PORT("DSW3")
+ AM_RANGE(0xf083, 0xf083) AM_READ_PORT("IN0")
+ AM_RANGE(0xf084, 0xf084) AM_READ_PORT("IN1")
+// AM_RANGE(0xf086, 0xf086) AM_READ_PORT("IN2")
+
+ AM_RANGE(0xf100, 0xf17f) AM_RAM AM_BASE_MEMBER(msisaac_state, m_spriteram) //sprites
+ AM_RANGE(0xf400, 0xf7ff) AM_RAM_WRITE(msisaac_fg_videoram_w) AM_BASE_MEMBER(msisaac_state, m_videoram)
+ AM_RANGE(0xf800, 0xfbff) AM_RAM_WRITE(msisaac_bg2_videoram_w) AM_BASE_MEMBER(msisaac_state, m_videoram3)
+ AM_RANGE(0xfc00, 0xffff) AM_RAM_WRITE(msisaac_bg_videoram_w) AM_BASE_MEMBER(msisaac_state, m_videoram2)
+// AM_RANGE(0xf801, 0xf801) AM_WRITE(msisaac_bgcolor_w)
+// AM_RANGE(0xfc00, 0xfc00) AM_WRITE(flip_screen_w)
+// AM_RANGE(0xfc03, 0xfc04) AM_WRITE(msisaac_coin_counter_w)
+ADDRESS_MAP_END
+
+static MACHINE_RESET( ta7630 )
+{
+ msisaac_state *state = machine.driver_data<msisaac_state>();
+ int i;
+
+ double db = 0.0;
+ double db_step = 0.50; /* 0.50 dB step (at least, maybe more) */
+ double db_step_inc = 0.275;
+ for (i=0; i<16; i++)
+ {
+ double max = 100.0 / pow(10.0, db/20.0 );
+ state->m_vol_ctrl[15 - i] = max;
+ /*logerror("vol_ctrl[%x] = %i (%f dB)\n",15 - i, state->m_vol_ctrl[15 - i], db);*/
+ db += db_step;
+ db_step += db_step_inc;
+ }
+
+ /*for (i=0; i<8; i++)
+ logerror("SOUND Chan#%i name=%s\n", i, mixer_get_name(i) );*/
+/*
+ channels 0-2 AY#0
+ channels 3-5 AY#1
+ channels 6,7 MSM5232 group1,group2
+*/
+}
+
+static WRITE8_DEVICE_HANDLER( sound_control_0_w )
+{
+ msisaac_state *state = device->machine().driver_data<msisaac_state>();
+ state->m_snd_ctrl0 = data & 0xff;
+ //popmessage("SND0 0=%2x 1=%2x", state->m_snd_ctrl0, state->m_snd_ctrl1);
+
+ device_sound_interface *sound;
+ device->interface(sound);
+ sound->set_output_gain(0, state->m_vol_ctrl[state->m_snd_ctrl0 & 15] / 100.0); /* group1 from msm5232 */
+ sound->set_output_gain(1, state->m_vol_ctrl[state->m_snd_ctrl0 & 15] / 100.0); /* group1 from msm5232 */
+ sound->set_output_gain(2, state->m_vol_ctrl[state->m_snd_ctrl0 & 15] / 100.0); /* group1 from msm5232 */
+ sound->set_output_gain(3, state->m_vol_ctrl[state->m_snd_ctrl0 & 15] / 100.0); /* group1 from msm5232 */
+ sound->set_output_gain(4, state->m_vol_ctrl[(state->m_snd_ctrl0 >> 4) & 15] / 100.0); /* group2 from msm5232 */
+ sound->set_output_gain(5, state->m_vol_ctrl[(state->m_snd_ctrl0 >> 4) & 15] / 100.0); /* group2 from msm5232 */
+ sound->set_output_gain(6, state->m_vol_ctrl[(state->m_snd_ctrl0 >> 4) & 15] / 100.0); /* group2 from msm5232 */
+ sound->set_output_gain(7, state->m_vol_ctrl[(state->m_snd_ctrl0 >> 4) & 15] / 100.0); /* group2 from msm5232 */
+}
+static WRITE8_HANDLER( sound_control_1_w )
+{
+ msisaac_state *state = space->machine().driver_data<msisaac_state>();
+ state->m_snd_ctrl1 = data & 0xff;
+ //popmessage("SND1 0=%2x 1=%2x", state->m_snd_ctrl0, state->m_snd_ctrl1);
+}
+
+static ADDRESS_MAP_START( msisaac_sound_map, AS_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x3fff) AM_ROM
+ AM_RANGE(0x4000, 0x47ff) AM_RAM
+ AM_RANGE(0x8000, 0x8001) AM_DEVWRITE("ay1", ay8910_address_data_w)
+ AM_RANGE(0x8002, 0x8003) AM_DEVWRITE("ay2", ay8910_address_data_w)
+ AM_RANGE(0x8010, 0x801d) AM_DEVWRITE("msm", msm5232_w)
+ AM_RANGE(0x8020, 0x8020) AM_DEVWRITE("msm", sound_control_0_w)
+ AM_RANGE(0x8030, 0x8030) AM_WRITE(sound_control_1_w)
+ AM_RANGE(0xc000, 0xc000) AM_READ(soundlatch_r)
+ AM_RANGE(0xc001, 0xc001) AM_WRITE(nmi_enable_w)
+ AM_RANGE(0xc002, 0xc002) AM_WRITE(nmi_disable_w)
+ AM_RANGE(0xc003, 0xc003) AM_WRITENOP /*???*/ /* this is NOT mixer_enable */
+ AM_RANGE(0xe000, 0xffff) AM_READNOP /*space for diagnostic ROM (not dumped, not reachable) */
+ADDRESS_MAP_END
+
+static INPUT_PORTS_START( msisaac )
+ PORT_START("DSW1")
+ PORT_DIPNAME( 0x01, 0x00, "DSW1 Unknown 0" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x00, "DSW1 Unknown 1" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( On ) )
+ PORT_DIPNAME( 0x04, 0x04, DEF_STR( Free_Play ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x18, 0x10, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "1" )
+ PORT_DIPSETTING( 0x08, "2" )
+ PORT_DIPSETTING( 0x10, "3" )
+ PORT_DIPSETTING( 0x18, "4" )
+ PORT_DIPNAME( 0x20, 0x00, "DSW1 Unknown 5" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( On ) )
+ PORT_DIPNAME( 0x40, 0x00, "DSW1 Unknown 6" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( On ) )
+ PORT_DIPNAME( 0x80, 0x00, "DSW1 Unknown 7" )
+ PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( On ) )
+
+ PORT_START("DSW2")
+ PORT_DIPNAME( 0x0f, 0x00, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x0f, DEF_STR( 9C_1C ) )
+ PORT_DIPSETTING( 0x0e, DEF_STR( 8C_1C ) )
+ PORT_DIPSETTING( 0x0d, DEF_STR( 7C_1C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0x0b, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0x0a, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x09, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x08, 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_DIPSETTING( 0x04, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x05, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x07, DEF_STR( 1C_8C ) )
+ PORT_DIPNAME( 0xf0, 0x00, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0xf0, DEF_STR( 9C_1C ) )
+ PORT_DIPSETTING( 0xe0, DEF_STR( 8C_1C ) )
+ PORT_DIPSETTING( 0xd0, DEF_STR( 7C_1C ) )
+ PORT_DIPSETTING( 0xc0, DEF_STR( 6C_1C ) )
+ PORT_DIPSETTING( 0xb0, DEF_STR( 5C_1C ) )
+ PORT_DIPSETTING( 0xa0, DEF_STR( 4C_1C ) )
+ PORT_DIPSETTING( 0x90, DEF_STR( 3C_1C ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x20, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x30, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x40, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x50, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x60, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x70, DEF_STR( 1C_8C ) )
+
+ PORT_START("DSW3")
+ PORT_DIPNAME( 0x01, 0x00, DEF_STR( Demo_Sounds ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x02, 0x00, "DSW3 Unknown 1" )
+ PORT_DIPSETTING( 0x00, "00" )
+ PORT_DIPSETTING( 0x02, "02" )
+ PORT_DIPNAME( 0x04, 0x04, "Invulnerability (Cheat)")
+ PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( On ) )
+ PORT_DIPNAME( 0x08, 0x00, "DSW3 Unknown 3" )
+ PORT_DIPSETTING( 0x00, "00" )
+ PORT_DIPSETTING( 0x08, "08" )
+ PORT_DIPNAME( 0x30, 0x00, "Copyright Notice" )
+ PORT_DIPSETTING( 0x00, "(C) 1985 Taito Corporation" )
+ PORT_DIPSETTING( 0x10, "(C) Taito Corporation" )
+ PORT_DIPSETTING( 0x20, "(C) Taito Corp. MCMLXXXV" )
+ PORT_DIPSETTING( 0x30, "(C) Taito Corporation" )
+ PORT_DIPNAME( 0x40, 0x00, "Coinage Display" )
+ PORT_DIPSETTING( 0x40, "Insert Coin" )
+ PORT_DIPSETTING( 0x00, "Coins/Credits" )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Coinage) )
+ PORT_DIPSETTING( 0x80, "A and B" )
+ PORT_DIPSETTING( 0x00, "A only" )
+
+ PORT_START("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_START1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_START2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_UNKNOWN ) //??
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_TILT )
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_UNKNOWN ) //??
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN ) //??
+
+ PORT_START("IN1")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 )
+ 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_JOYSTICK_DOWN ) PORT_8WAY
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+ PORT_START("IN2")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
+
+INPUT_PORTS_END
+
+
+static const gfx_layout char_layout =
+{
+ 8,8,
+ 0x400,
+ 4,
+ { 0*0x2000*8, 1*0x2000*8, 2*0x2000*8, 3*0x2000*8 },
+ { 7,6,5,4,3,2,1,0 },
+ { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8 },
+ 8*8
+};
+
+static const gfx_layout tile_layout =
+{
+ 16,16,
+ 0x100,
+ 4,
+ { 0*0x2000*8, 1*0x2000*8, 2*0x2000*8, 3*0x2000*8 },
+ { 7,6,5,4,3,2,1,0, 64+7,64+6,64+5,64+4,64+3,64+2,64+1,64+0 },
+ { 0*8,1*8,2*8,3*8,4*8,5*8,6*8,7*8, 16*8, 17*8, 18*8, 19*8, 20*8, 21*8, 22*8, 23*8 },
+ 32*8
+};
+
+static GFXDECODE_START( msisaac )
+ GFXDECODE_ENTRY( "gfx1", 0, char_layout, 0, 64 )
+ GFXDECODE_ENTRY( "gfx2", 0, char_layout, 0, 64 )
+ GFXDECODE_ENTRY( "gfx1", 0, tile_layout, 0, 64 )
+ GFXDECODE_ENTRY( "gfx2", 0, tile_layout, 0, 64 )
+GFXDECODE_END
+
+static const msm5232_interface msm5232_config =
+{
+ { 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6, 0.65e-6 } /* 0.65 (???) uF capacitors (match the sample, not verified) */
+};
+
+
+/*******************************************************************************/
+
+static MACHINE_START( msisaac )
+{
+ msisaac_state *state = machine.driver_data<msisaac_state>();
+
+ state->m_audiocpu = machine.device("audiocpu");
+
+ /* video */
+ state->save_item(NAME(state->m_bg2_textbank));
+ /* sound */
+ state->save_item(NAME(state->m_sound_nmi_enable));
+ state->save_item(NAME(state->m_pending_nmi));
+ state->save_item(NAME(state->m_vol_ctrl));
+ state->save_item(NAME(state->m_snd_ctrl0));
+ state->save_item(NAME(state->m_snd_ctrl1));
+
+#ifdef USE_MCU
+#else
+ state->save_item(NAME(state->m_mcu_val));
+ state->save_item(NAME(state->m_direction));
+#endif
+}
+
+static MACHINE_RESET( msisaac )
+{
+ msisaac_state *state = machine.driver_data<msisaac_state>();
+
+ MACHINE_RESET_CALL(ta7630);
+
+ /* video */
+ state->m_bg2_textbank = 0;
+ /* sound */
+ state->m_sound_nmi_enable = 0;
+ state->m_pending_nmi = 0;
+ state->m_snd_ctrl0 = 0;
+ state->m_snd_ctrl1 = 0;
+
+#ifdef USE_MCU
+ cputag_set_input_line(machine, "mcu", 0, CLEAR_LINE);
+#else
+ state->m_mcu_val = 0;
+ state->m_direction = 0;
+#endif
+}
+
+static MACHINE_CONFIG_START( msisaac, msisaac_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", Z80, 4000000)
+ MCFG_CPU_PROGRAM_MAP(msisaac_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_hold)
+
+ MCFG_CPU_ADD("audiocpu", Z80, 4000000)
+ MCFG_CPU_PROGRAM_MAP(msisaac_sound_map)
+ MCFG_CPU_VBLANK_INT("screen", irq0_line_hold) /* source of IRQs is unknown */
+
+#ifdef USE_MCU
+ MCFG_CPU_ADD("mcu", M68705,8000000/2) /* 4 MHz */
+ MCFG_CPU_PROGRAM_MAP(buggychl_mcu_map)
+ MCFG_DEVICE_ADD("bmcu", BUGGYCHL_MCU, 0)
+#endif
+
+ MCFG_MACHINE_START(msisaac)
+ MCFG_MACHINE_RESET(msisaac)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
+ MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MCFG_SCREEN_SIZE(32*8, 32*8)
+ MCFG_SCREEN_VISIBLE_AREA(0, 32*8-1, 1*8, 31*8-1)
+ MCFG_SCREEN_UPDATE(msisaac)
+
+ MCFG_GFXDECODE(msisaac)
+ MCFG_PALETTE_LENGTH(1024)
+
+ MCFG_VIDEO_START(msisaac)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("ay1", AY8910, 2000000)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
+
+ MCFG_SOUND_ADD("ay2", AY8910, 2000000)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.15)
+
+ MCFG_SOUND_ADD("msm", MSM5232, 2000000)
+ MCFG_SOUND_CONFIG(msm5232_config)
+ MCFG_SOUND_ROUTE(0, "mono", 1.0) // pin 28 2'-1
+ MCFG_SOUND_ROUTE(1, "mono", 1.0) // pin 29 4'-1
+ MCFG_SOUND_ROUTE(2, "mono", 1.0) // pin 30 8'-1
+ MCFG_SOUND_ROUTE(3, "mono", 1.0) // pin 31 16'-1
+ MCFG_SOUND_ROUTE(4, "mono", 1.0) // pin 36 2'-2
+ MCFG_SOUND_ROUTE(5, "mono", 1.0) // pin 35 4'-2
+ MCFG_SOUND_ROUTE(6, "mono", 1.0) // pin 34 8'-2
+ MCFG_SOUND_ROUTE(7, "mono", 1.0) // pin 33 16'-2
+ // pin 1 SOLO 8' not mapped
+ // pin 2 SOLO 16' not mapped
+ // pin 22 Noise Output not mapped
+MACHINE_CONFIG_END
+
+
+/*******************************************************************************/
+
+ROM_START( msisaac )
+ ROM_REGION( 0x10000, "maincpu", 0 ) /* Z80 main CPU */
+ ROM_LOAD( "a34_11.bin", 0x0000, 0x4000, CRC(40819334) SHA1(65352607165043909a09e96c07f7060f6ce087e6) )
+ ROM_LOAD( "a34_12.bin", 0x4000, 0x4000, CRC(4c50b298) SHA1(5962882ad37ba6990ba2a6312b570f214cd4c103) )
+ ROM_LOAD( "a34_13.bin", 0x8000, 0x4000, CRC(2e2b09b3) SHA1(daa715282ed9ef2e519e252a684ef28085becabd) )
+ ROM_LOAD( "a34_10.bin", 0xc000, 0x2000, CRC(a2c53dc1) SHA1(14f23511f92bcfc94447dabe2826555d68bc1caa) )
+
+ ROM_REGION( 0x10000, "audiocpu", 0 ) /* Z80 sound CPU */
+ ROM_LOAD( "a34_01.bin", 0x0000, 0x4000, CRC(545e45e7) SHA1(18ddb1ec8809bb62ae1c1068cd16cd3c933bf6ba) )
+
+ ROM_REGION( 0x0800, "cpu2", 0 ) /* 2k for the microcontroller */
+ ROM_LOAD( "a34.mcu" , 0x0000, 0x0800, NO_DUMP )
+
+// I tried following MCUs; none of them work with this game:
+// ROM_LOAD( "a30-14" , 0x0000, 0x0800, CRC(c4690279) ) //40love
+// ROM_LOAD( "a22-19.31", 0x0000, 0x0800, CRC(06a71df0) ) //buggy challenge
+// ROM_LOAD( "a45-19", 0x0000, 0x0800, CRC(5378253c) ) //flstory
+// ROM_LOAD( "a54-19", 0x0000, 0x0800, CRC(e08b8846) ) //lkage
+
+ ROM_REGION( 0x8000, "gfx1", 0 )
+ ROM_LOAD( "a34_02.bin", 0x0000, 0x2000, CRC(50da1a81) SHA1(8aa5a896f3e1173155d4574f5e1c2703e334cf44) )
+ ROM_LOAD( "a34_03.bin", 0x2000, 0x2000, CRC(728a549e) SHA1(8969569d4b7a3ba7b740dbd236c047a46b723617) )
+ ROM_LOAD( "a34_04.bin", 0x4000, 0x2000, CRC(e7d19f1c) SHA1(d55ee8085256c1f6a254d3249997326eebba7d88) )
+ ROM_LOAD( "a34_05.bin", 0x6000, 0x2000, CRC(bed2107d) SHA1(83b16ca8a1b131aa6a2976cdbe907109750eaf71) )
+
+ ROM_REGION( 0x8000, "gfx2", 0 )
+ ROM_LOAD( "a34_06.bin", 0x0000, 0x2000, CRC(4ec71687) SHA1(e88f0c61a172fbca1784c95246776bf64c071bf7) )
+ ROM_LOAD( "a34_07.bin", 0x2000, 0x2000, CRC(24922abf) SHA1(e42b4947b8c84bdf62990205308b8c187352d001) )
+ ROM_LOAD( "a34_08.bin", 0x4000, 0x2000, CRC(3ddbf4c0) SHA1(7dd82aba661addd0a905bc185c1a6d7f2e21e0c6) )
+ ROM_LOAD( "a34_09.bin", 0x6000, 0x2000, CRC(23eb089d) SHA1(fcf48862825bf09ba3718cbade0e163a660e1a68) )
+
+ROM_END
+
+
+GAME( 1985, msisaac, 0, msisaac, msisaac, 0, ROT270, "Taito Corporation", "Metal Soldier Isaac II", GAME_UNEMULATED_PROTECTION | GAME_NO_COCKTAIL | GAME_SUPPORTS_SAVE )