diff options
Diffstat (limited to 'src/mame/drivers/littlerb.cpp')
-rw-r--r-- | src/mame/drivers/littlerb.cpp | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/src/mame/drivers/littlerb.cpp b/src/mame/drivers/littlerb.cpp deleted file mode 100644 index 0058b8d9acb..00000000000 --- a/src/mame/drivers/littlerb.cpp +++ /dev/null @@ -1,328 +0,0 @@ -// 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 ) |