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-rw-r--r--src/mame/drivers/littlerb.cpp328
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diff --git a/src/mame/drivers/littlerb.cpp b/src/mame/drivers/littlerb.cpp
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--- a/src/mame/drivers/littlerb.cpp
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-// license:BSD-3-Clause
-// copyright-holders:Pierpaolo Prazzoli, David Haywood
-/*
-
-Little Robin, (c)1994 TCH
-
-driver by:
- Pierpaolo Prazzoli
- David Haywood
-
-
-Notes:
-
-How big are the actual framebuffers? Are both also double buffered?
-
-Sound pitch is directly correlated with irqs, scanline timings and pixel clock,
-so it's surely not 100% correct. Sound sample playbacks looks fine at current time tho.
-
-------
-
-LITTLE ROBIN TCH S.A.
-+---------------------------------------------+
-|TDA2003 U41_RAM 44C256|
-|VR1 U48 U40_RAM 44C256|
-| 6.000MHz U36_RAM 44C256|
-| U35_RAM 44C256|
-| Bt478 |
-|J GAL22V10 |
-|A GAL20V8 |
-|M TMS34010 |
-|M 555N 40.000MHz|
-|A GAL22V10 |
-| 84256A-70 84256A-70 |
-| TCH_1.U53 TCH_2.U29 |
-| 16.000MHz |
-| TCH_4.U32 |
-| DSW1 DSW2 MC68000P12 TCH_3.U26 |
-|---------------------------------------------+
-
- CPU: MC68000 series @ 16.000MHz/2 (known to use 10MHz or 12MHz parts)
- OSC: 40.000MHz, 16.000MHz & 6.000MHz
-Graphics: TMS34010 (surface scratched, stamped B)
- RAM: 2 Fujitsu 84256A-70L 32K SRAM
- 4 Samsung KM44C256CP-10 256K x 4bit CMOS DRAM
- U35, U36, U40 & U41 unknown ZIP style RAM
- DSW: 2 8-switch dipswitch banks
- Other: TDA2003 10Watt Amp
- ST 555N General Purpose Single Bipolar Timer
- Bt478KPJ35 Brooktree 80Mhz 265-Word Color Palette PS/2 RAMDAC
- VR1 volume resistor pot
- U48 is an unknown surface scratched socketed QFP68 part stamped A
-
-
-Dip sw.1
---------
- | Coin 1 | Coin 2 |
- 1 2 3 4 5 6 7 8 Coin Play
----------------------------------------------------
- Coins - - - - - - 1 4
- + - - + - - 1 3
- - + - - + - 1 2
- + + - + + - 1 1
- - - + - - + 2 1
- + - + + - + 3 1
- - + + - + + 4 1
- + + + + + + 5 1
- Player - - 2
- + - 3
- - + 4
- + + 5
-
-
-Dip sw.2
--------- 1 2 3 4 5 6 7 8
------------------------------------------------------------
- Demo Sound - Yes
- + No
- Mode - Test Mode
- + Game Mode
- Difficulty - - - 0 (Easy)
- + - - 1
- - + - 2 (Normal)
- + + - 3
- - - + 4
- + - + 5
- - + + 6
- + + + 7 (Hardest)
- Bonus - - Every 150000
- + - Every 200000
- - + Every 300000
- + + No Bonus
-
-
-*/
-
-#include "emu.h"
-#include "cpu/m68000/m68000.h"
-#include "machine/inder_vid.h"
-#include "machine/timer.h"
-#include "sound/dac.h"
-#include "sound/volt_reg.h"
-#include "speaker.h"
-
-#define littlerb_printf logerror
-#define littlerb_alt_printf logerror
-
-class littlerb_state : public driver_device
-{
-public:
- littlerb_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_indervid(*this, "inder_vid"),
- m_ldac(*this, "ldac"),
- m_rdac(*this, "rdac"),
- m_soundframe(0)
- {
- }
-
- void littlerb(machine_config &config);
-
- void init_littlerb();
-
- DECLARE_CUSTOM_INPUT_MEMBER(littlerb_frame_step_r);
-
-private:
- required_device<cpu_device> m_maincpu;
- required_device<inder_vid_device> m_indervid;
-
- required_device<dac_byte_interface> m_ldac;
- required_device<dac_byte_interface> m_rdac;
- uint8_t m_sound_index_l,m_sound_index_r;
- uint16_t m_sound_pointer_l,m_sound_pointer_r;
- int m_soundframe;
-
- DECLARE_WRITE16_MEMBER(littlerb_l_sound_w);
- DECLARE_WRITE16_MEMBER(littlerb_r_sound_w);
- uint8_t sound_data_shift();
-
- TIMER_DEVICE_CALLBACK_MEMBER(littlerb_sound_step_cb);
- TIMER_DEVICE_CALLBACK_MEMBER(littlerb_sound_cb);
-
- void littlerb_main(address_map &map);
-};
-
-
-/* could be slightly different (timing wise, directly related to the irqs), but certainly they smoked some bad pot for this messy way ... */
-uint8_t littlerb_state::sound_data_shift()
-{
- return ((m_soundframe % 16) == 0) ? 8 : 0;
-}
-
-/* l is SFX, r is BGM (they doesn't seem to share the same data ROM) */
-WRITE16_MEMBER(littlerb_state::littlerb_l_sound_w)
-{
- m_sound_index_l = (data >> sound_data_shift()) & 0xff;
- m_sound_pointer_l = 0;
- //popmessage("%04x %04x",m_sound_index_l,m_sound_index_r);
-}
-
-WRITE16_MEMBER(littlerb_state::littlerb_r_sound_w)
-{
- m_sound_index_r = (data >> sound_data_shift()) & 0xff;
- m_sound_pointer_r = 0;
- //popmessage("%04x %04x",m_sound_index_l,m_sound_index_r);
-}
-
-void littlerb_state::littlerb_main(address_map &map)
-{
- map(0x000008, 0x000017).nopw();
- map(0x000020, 0x00002f).nopw();
- map(0x000070, 0x000073).nopw();
- map(0x060004, 0x060007).nopw();
- map(0x000000, 0x0fffff).rom();
- map(0x200000, 0x203fff).ram(); // main ram?
-
- map(0x700000, 0x700007).rw("inder_vid:tms", FUNC(tms34010_device::host_r), FUNC(tms34010_device::host_w));
-
- map(0x740000, 0x740001).w(FUNC(littlerb_state::littlerb_l_sound_w));
- map(0x760000, 0x760001).w(FUNC(littlerb_state::littlerb_r_sound_w));
- map(0x780000, 0x780001).nopw(); // generic outputs
- map(0x7c0000, 0x7c0001).portr("DSW");
- map(0x7e0000, 0x7e0001).portr("P1");
- map(0x7e0002, 0x7e0003).portr("P2");
-}
-
-/* guess according to DASM code and checking the gameplay speed, could be different */
-CUSTOM_INPUT_MEMBER(littlerb_state::littlerb_frame_step_r)
-{
- uint32_t ret = m_soundframe;
-
- return (ret) & 7;
-}
-
-static INPUT_PORTS_START( littlerb )
- PORT_START("DSW") /* 16bit */
- PORT_DIPNAME( 0x0003, 0x0001, DEF_STR( Lives ) ) PORT_DIPLOCATION("SW1:8,7")
- PORT_DIPSETTING( 0x0003, "2" )
- PORT_DIPSETTING( 0x0001, "3" )
- PORT_DIPSETTING( 0x0002, "4" )
- PORT_DIPSETTING( 0x0000, "5" )
- PORT_DIPNAME( 0x001c, 0x0004, DEF_STR( Coin_B ) ) PORT_DIPLOCATION("SW1:6,5,4")
- PORT_DIPSETTING( 0x0000, DEF_STR( 5C_1C ) )
- PORT_DIPSETTING( 0x0010, DEF_STR( 4C_1C ) )
- PORT_DIPSETTING( 0x0008, DEF_STR( 3C_1C ) )
- PORT_DIPSETTING( 0x0018, DEF_STR( 2C_1C ) )
- PORT_DIPSETTING( 0x0004, DEF_STR( 1C_1C ) )
- PORT_DIPSETTING( 0x0014, DEF_STR( 1C_2C ) )
- PORT_DIPSETTING( 0x000c, DEF_STR( 1C_3C ) )
- PORT_DIPSETTING( 0x001c, DEF_STR( 1C_4C ) )
- PORT_DIPNAME( 0x00e0, 0x0020, DEF_STR( Coin_A ) ) PORT_DIPLOCATION("SW1:3,2,1")
- PORT_DIPSETTING( 0x0000, DEF_STR( 5C_1C ) )
- PORT_DIPSETTING( 0x0080, DEF_STR( 4C_1C ) )
- PORT_DIPSETTING( 0x0040, DEF_STR( 3C_1C ) )
- PORT_DIPSETTING( 0x00c0, DEF_STR( 2C_1C ) )
- PORT_DIPSETTING( 0x0020, DEF_STR( 1C_1C ) )
- PORT_DIPSETTING( 0x00a0, DEF_STR( 1C_2C ) )
- PORT_DIPSETTING( 0x0060, DEF_STR( 1C_3C ) )
- PORT_DIPSETTING( 0x00e0, DEF_STR( 1C_4C ) )
- PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Unknown ) ) PORT_DIPLOCATION("SW2:8")
- PORT_DIPSETTING( 0x0100, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
- PORT_DIPNAME( 0x0600, 0x0600, DEF_STR( Bonus_Life ) ) PORT_DIPLOCATION("SW2:7,6")
- PORT_DIPSETTING( 0x0600, "Every 150,000" )
- PORT_DIPSETTING( 0x0200, "Every 200,000" )
- PORT_DIPSETTING( 0x0400, "Every 300,000" )
- PORT_DIPSETTING( 0x0000, DEF_STR( None ) )
- PORT_DIPNAME( 0x3800, 0x2800, DEF_STR( Difficulty ) ) PORT_DIPLOCATION("SW2:5,4,3")
- PORT_DIPSETTING( 0x3800, DEF_STR( Easy ) )
- PORT_DIPSETTING( 0x1800, DEF_STR( Medium_Easy ) )
- PORT_DIPSETTING( 0x2800, DEF_STR( Normal ) )
- PORT_DIPSETTING( 0x0800, DEF_STR( Medium_Hard ) )
- PORT_DIPSETTING( 0x3000, DEF_STR( Hard ) )
- PORT_DIPSETTING( 0x1000, DEF_STR( Harder ) )
- PORT_DIPSETTING( 0x2000, DEF_STR( Very_Hard ) )
- PORT_DIPSETTING( 0x0000, DEF_STR( Hardest ) )
- PORT_SERVICE_DIPLOC( 0x4000, IP_ACTIVE_LOW, "SW2:2" )
- PORT_DIPNAME( 0x8000, 0x8000, DEF_STR( Demo_Sounds ) ) PORT_DIPLOCATION("SW2:1")
- PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x8000, DEF_STR( On ) )
-
- PORT_START("P1") /* 16bit */
- PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
- PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
- PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
- PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
- PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
- PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
- PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(1)
- PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_START1 )
- PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_START2 )
- PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_COIN1 )
- PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_COIN2 )
- PORT_DIPNAME( 0x1000, 0x1000, "???" )
- PORT_DIPSETTING( 0x1000, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
- PORT_BIT( 0xe000, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(littlerb_state, littlerb_frame_step_r)
-
- PORT_START("P2") /* 16bit */
- PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(2)
- PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
- PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
- PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
- PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
- PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
- PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_PLAYER(2)
- PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
-INPUT_PORTS_END
-
-
-TIMER_DEVICE_CALLBACK_MEMBER(littlerb_state::littlerb_sound_cb)
-{
- uint8_t *sample_rom = memregion("samples")->base();
-
- m_ldac->write(sample_rom[m_sound_pointer_l | (m_sound_index_l << 10) | 0x40000]);
- m_rdac->write(sample_rom[m_sound_pointer_r | (m_sound_index_r << 10) | 0x00000]);
- m_sound_pointer_l++;
- m_sound_pointer_l&=0x3ff;
- m_sound_pointer_r++;
- m_sound_pointer_r&=0x3ff;
-}
-
-TIMER_DEVICE_CALLBACK_MEMBER(littlerb_state::littlerb_sound_step_cb)
-{
- m_soundframe++;
-}
-
-void littlerb_state::littlerb(machine_config &config)
-{
- M68000(config, m_maincpu, XTAL(16'000'000)/2); // 10MHz rated part, near 16Mhz XTAL
- m_maincpu->set_addrmap(AS_PROGRAM, &littlerb_state::littlerb_main);
-
- INDER_VIDEO(config, m_indervid, 0); // XTAL(40'000'000)
-
- // TODO: not accurate - driven by XTAL(6'000'000)?
- TIMER(config, "step_timer").configure_periodic(FUNC(littlerb_state::littlerb_sound_step_cb), attotime::from_hz(7500/150));
- TIMER(config, "sound_timer").configure_periodic(FUNC(littlerb_state::littlerb_sound_cb), attotime::from_hz(7500));
-
- SPEAKER(config, "lspeaker").front_left();
- SPEAKER(config, "rspeaker").front_right();
-
- DAC_8BIT_R2R(config, m_ldac, 0).add_route(ALL_OUTPUTS, "lspeaker", 0.5); // unknown DAC
- DAC_8BIT_R2R(config, m_rdac, 0).add_route(ALL_OUTPUTS, "rspeaker", 0.5); // unknown DAC
- voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref"));
- vref.add_route(0, "ldac", 1.0, DAC_VREF_POS_INPUT); vref.add_route(0, "ldac", -1.0, DAC_VREF_NEG_INPUT);
- vref.add_route(0, "rdac", 1.0, DAC_VREF_POS_INPUT); vref.add_route(0, "rdac", -1.0, DAC_VREF_NEG_INPUT);
-}
-
-ROM_START( littlerb )
- ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 Code */
- ROM_LOAD16_BYTE( "tch_1.u53", 0x00001, 0x80000, CRC(172fbc13) SHA1(cd165ca0d0546e2634cf182dc98004cbfb02cf9f) )
- ROM_LOAD16_BYTE( "tch_2.u29", 0x00000, 0x80000, CRC(b2fb1d61) SHA1(9a9d7176c241928d07af651e5f7f21d4f019701d) )
-
- ROM_REGION( 0x80000, "samples", 0 ) /* sound samples */
- ROM_LOAD( "tch_3.u26", 0x40000, 0x40000, CRC(f193c5b6) SHA1(95548a40e2b5064c558b36cabbf507d23678b1b2) )
- ROM_LOAD( "tch_4.u32", 0x00000, 0x40000, CRC(d6b81583) SHA1(b7a63d18a41ccac4d3db9211de0b0cdbc914317a) )
-ROM_END
-
-void littlerb_state::init_littlerb()
-{
- /* various scenes flicker to the point of graphics being invisible (eg. the map screen at the very start of a game)
- unless you overclock the TMS34010 to 120%, possible timing bug in the core? this is a hack */
- m_indervid->subdevice<cpu_device>("tms")->set_clock_scale(1.2f);
-}
-
-GAME( 1994, littlerb, 0, littlerb, littlerb, littlerb_state, init_littlerb, ROT0, "TCH", "Little Robin", MACHINE_IMPERFECT_GRAPHICS|MACHINE_IMPERFECT_SOUND )