/*************************************************************************** Atari Return of the Jedi hardware driver by Dan Boris Games supported: * Return of the Jedi Notes: * The schematics show the smoothing PROMs as being twice as large, but the current sizes are confirmed via a PCB. The PROMs are 82S137 devices. **************************************************************************** Memory map **************************************************************************** ======================================================================== CPU #1 ======================================================================== 0000-07FF R/W xxxxxxxx Z-page Working RAM 0800-08FF R/W xxxxxxxx NVRAM 0C00 R xxxx-xxx Switch inputs #1 R x------- (right coin) R -x------ (left coin) R --x----- (aux coin) R ---x---- (self test) R -----x-- (left thumb switch) R ------x- (fire switches) R -------x (right thumb switch) 0C01 R xxx--x-- Communications R x------- (VBLANK) R -x------ (sound CPU communications latch full flag) R --x----- (sound CPU acknowledge latch flag) R -----x-- (slam switch) 1400 R xxxxxxxx Sound acknowledge latch 1800 R xxxxxxxx Read A/D conversion 1C00 W -------- Enable NVRAM 1C01 W -------- Disable NVRAM 1C80 W -------- Start A/D conversion (horizontal) 1C82 W -------- Start A/D conversion (vertical) 1D00 W -------- NVRAM store 1D80 W -------- Watchdog clear 1E00 W -------- Interrupt acknowledge 1E80 W x------- Left coin counter 1E81 W x------- Right coin counter 1E82 W x------- LED 1 (not used) 1E83 W x------- LED 2 (not used) 1E84 W x------- Alphanumerics bank select 1E86 W x------- Sound CPU reset 1E87 W x------- Video off 1F00 W xxxxxxxx Sound communications latch 1F80 W -----xxx Program ROM bank select 2000-23FF R/W xxxxxxxx Scrolling playfield (low 8 bits) 2400-27FF R/W ----xxxx Scrolling playfield (upper 4 bits) 2800-2BFF R/W xxxxxxxx Color RAM low R/W -----xxx (blue) R/W --xxx--- (green) R/W xx------ (red LSBs) 2C00-2FFF R/W ----xxxx Color RAM high R/W -------x (red MSB) R/W ----xxx- (intensity) 3000-37BF R/W xxxxxxxx Alphanumerics RAM 37C0-37EF R/W xxxxxxxx Motion object picture 3800-382F R/W -xxxxxxx Motion object flags R/W -x---xx- (picture bank) R/W --x----- (vertical flip) R/W ---x---- (horizontal flip) R/W ----x--- (32 pixels tall) R/W -------x (X position MSB) 3840-386F R/W xxxxxxxx (Y position) 38C0-38EF R/W xxxxxxxx (X position LSBs) 3C00-3C01 W xxxxxxxx Scrolling playfield vertical position 3D00-3D01 W xxxxxxxx Scrolling playfield horizontal position 3E00-3FFF W xxxxxxxx PIXI graphics expander RAM 4000-7FFF R xxxxxxxx Banked program ROM 8000-FFFF R xxxxxxxx Fixed program ROM ======================================================================== Interrupts: NMI not connected IRQ generated by 32V ======================================================================== ======================================================================== CPU #2 ======================================================================== 0000-07FF R/W xxxxxxxx Z-page working RAM 0800-083F R/W xxxxxxxx Custom I/O 1000 W -------- Interrupt acknowledge 1100 W xxxxxxxx Speech data 1200 W -------- Speech write strobe on 1300 W -------- Speech write strobe off 1400 W xxxxxxxx Main CPU acknowledge latch 1500 W -------x Speech chip reset 1800 R xxxxxxxx Main CPU communication latch 1C00 R x------- Speech chip ready 1C01 R xx------ Communications R x------- (sound CPU communication latch full flag) R -x------ (sound CPU acknowledge latch full flag) 8000-FFFF R xxxxxxxx Program ROM ======================================================================== Interrupts: NMI not connected IRQ generated by 32V ======================================================================== ***************************************************************************/ #include "emu.h" #include "cpu/m6502/m6502.h" #include "machine/nvram.h" #include "includes/jedi.h" /************************************* * * Interrupt handling * *************************************/ static TIMER_CALLBACK( generate_interrupt ) { jedi_state *state = machine.driver_data(); int scanline = param; /* IRQ is set by /32V */ cputag_set_input_line(machine, "maincpu", M6502_IRQ_LINE, (scanline & 32) ? CLEAR_LINE : ASSERT_LINE); cputag_set_input_line(machine, "audiocpu", M6502_IRQ_LINE, (scanline & 32) ? CLEAR_LINE : ASSERT_LINE); /* set up for the next */ scanline += 32; if (scanline > 256) scanline = 32; state->m_interrupt_timer->adjust(machine.primary_screen->time_until_pos(scanline), scanline); } static WRITE8_HANDLER( main_irq_ack_w ) { cputag_set_input_line(space->machine(), "maincpu", M6502_IRQ_LINE, CLEAR_LINE); } /************************************* * * Start * *************************************/ static MACHINE_START( jedi ) { jedi_state *state = machine.driver_data(); /* set a timer to run the interrupts */ state->m_interrupt_timer = machine.scheduler().timer_alloc(FUNC(generate_interrupt)); state->m_interrupt_timer->adjust(machine.primary_screen->time_until_pos(32), 32); /* configure the banks */ memory_configure_bank(machine, "bank1", 0, 3, machine.region("maincpu")->base() + 0x10000, 0x4000); /* set up save state */ state->save_item(NAME(state->m_nvram_enabled)); } /************************************* * * Reset * *************************************/ static MACHINE_RESET( jedi ) { jedi_state *state = machine.driver_data(); /* init globals */ state->m_a2d_select = 0; state->m_nvram_enabled = 0; } /************************************* * * Main program ROM banking * *************************************/ static WRITE8_HANDLER( rom_banksel_w ) { if (data & 0x01) memory_set_bank(space->machine(), "bank1", 0); if (data & 0x02) memory_set_bank(space->machine(), "bank1", 1); if (data & 0x04) memory_set_bank(space->machine(), "bank1", 2); } /************************************* * * I/O ports * *************************************/ static READ8_HANDLER( a2d_data_r ) { jedi_state *state = space->machine().driver_data(); UINT8 ret = 0; switch (state->m_a2d_select) { case 0: ret = input_port_read(space->machine(), "STICKY"); break; case 2: ret = input_port_read(space->machine(), "STICKX"); break; } return ret; } static WRITE8_HANDLER( a2d_select_w ) { jedi_state *state = space->machine().driver_data(); state->m_a2d_select = offset; } static WRITE8_HANDLER( jedi_coin_counter_w ) { coin_counter_w(space->machine(), offset, data); } /************************************* * * NVRAM * *************************************/ static WRITE8_HANDLER( nvram_data_w ) { jedi_state *state = space->machine().driver_data(); if (state->m_nvram_enabled) state->m_nvram[offset] = data; } static WRITE8_HANDLER( nvram_enable_w ) { jedi_state *state = space->machine().driver_data(); state->m_nvram_enabled = ~offset & 1; } /************************************* * * Main CPU memory handlers * *************************************/ static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0x07ff) AM_RAM AM_RANGE(0x0800, 0x08ff) AM_MIRROR(0x0300) AM_RAM_WRITE(nvram_data_w) AM_SHARE("nvram") AM_RANGE(0x0c00, 0x0c00) AM_MIRROR(0x03fe) AM_READ_PORT("0c00") AM_WRITENOP AM_RANGE(0x0c01, 0x0c01) AM_MIRROR(0x03fe) AM_READ_PORT("0c01") AM_WRITENOP AM_RANGE(0x1000, 0x13ff) AM_NOP AM_RANGE(0x1400, 0x1400) AM_MIRROR(0x03ff) AM_READ(jedi_audio_ack_latch_r) AM_WRITENOP AM_RANGE(0x1800, 0x1800) AM_MIRROR(0x03ff) AM_READ(a2d_data_r) AM_WRITENOP AM_RANGE(0x1c00, 0x1c01) AM_MIRROR(0x007f) AM_READNOP AM_WRITE(nvram_enable_w) AM_RANGE(0x1c80, 0x1c82) AM_MIRROR(0x0078) AM_READNOP AM_WRITE(a2d_select_w) AM_RANGE(0x1c83, 0x1c87) AM_MIRROR(0x0078) AM_NOP AM_RANGE(0x1d00, 0x1d00) AM_MIRROR(0x007f) AM_NOP /* write: NVRAM store */ AM_RANGE(0x1d80, 0x1d80) AM_MIRROR(0x007f) AM_READNOP AM_WRITE(watchdog_reset_w) AM_RANGE(0x1e00, 0x1e00) AM_MIRROR(0x007f) AM_READNOP AM_WRITE(main_irq_ack_w) AM_RANGE(0x1e80, 0x1e81) AM_MIRROR(0x0078) AM_READNOP AM_WRITE(jedi_coin_counter_w) AM_RANGE(0x1e82, 0x1e83) AM_MIRROR(0x0078) AM_NOP /* write: LED control - not used */ AM_RANGE(0x1e84, 0x1e84) AM_MIRROR(0x0078) AM_READNOP AM_WRITEONLY AM_BASE_MEMBER(jedi_state, m_foreground_bank) AM_RANGE(0x1e85, 0x1e85) AM_MIRROR(0x0078) AM_NOP AM_RANGE(0x1e86, 0x1e86) AM_MIRROR(0x0078) AM_READNOP AM_WRITE(jedi_audio_reset_w) AM_RANGE(0x1e87, 0x1e87) AM_MIRROR(0x0078) AM_READNOP AM_WRITEONLY AM_BASE_MEMBER(jedi_state, m_video_off) AM_RANGE(0x1f00, 0x1f00) AM_MIRROR(0x007f) AM_READNOP AM_WRITE(jedi_audio_latch_w) AM_RANGE(0x1f80, 0x1f80) AM_MIRROR(0x007f) AM_READNOP AM_WRITE(rom_banksel_w) AM_RANGE(0x2000, 0x27ff) AM_RAM AM_BASE_MEMBER(jedi_state, m_backgroundram) AM_RANGE(0x2800, 0x2fff) AM_RAM AM_BASE_MEMBER(jedi_state, m_paletteram) AM_RANGE(0x3000, 0x37bf) AM_RAM AM_BASE_MEMBER(jedi_state, m_foregroundram) AM_RANGE(0x37c0, 0x3bff) AM_RAM AM_BASE_MEMBER(jedi_state, m_spriteram) AM_RANGE(0x3c00, 0x3c01) AM_MIRROR(0x00fe) AM_READNOP AM_WRITE(jedi_vscroll_w) AM_RANGE(0x3d00, 0x3d01) AM_MIRROR(0x00fe) AM_READNOP AM_WRITE(jedi_hscroll_w) AM_RANGE(0x3e00, 0x3e00) AM_MIRROR(0x01ff) AM_WRITEONLY AM_BASE_MEMBER(jedi_state, m_smoothing_table) AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("bank1") AM_RANGE(0x8000, 0xffff) AM_ROM ADDRESS_MAP_END /************************************* * * Port definitions * *************************************/ static INPUT_PORTS_START( jedi ) PORT_START("0c00") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON3 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED ) PORT_SERVICE( 0x10, IP_ACTIVE_LOW ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_SERVICE1 ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_START("0c01") PORT_BIT( 0x03, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_TILT ) PORT_BIT( 0x18, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x60, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(jedi_audio_comm_stat_r, NULL) PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_VBLANK ) PORT_START("STICKY") /* analog Y */ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_START("STICKX") /* analog X */ PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) INPUT_PORTS_END /************************************* * * Machine driver * *************************************/ static MACHINE_CONFIG_START( jedi, jedi_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M6502, JEDI_MAIN_CPU_CLOCK) MCFG_CPU_PROGRAM_MAP(main_map) MCFG_QUANTUM_TIME(attotime::from_hz(240)) MCFG_MACHINE_START(jedi) MCFG_MACHINE_RESET(jedi) MCFG_NVRAM_ADD_0FILL("nvram") /* video hardware */ MCFG_FRAGMENT_ADD(jedi_video) /* audio hardware */ MCFG_FRAGMENT_ADD(jedi_audio) MACHINE_CONFIG_END /************************************* * * ROM definitions * *************************************/ ROM_START( jedi ) ROM_REGION( 0x1C000, "maincpu", 0 ) /* 64k for code + 48k for banked ROMs */ ROM_LOAD( "136030-221.14f", 0x08000, 0x4000, CRC(414d05e3) SHA1(e5f5f8d85433467a13d6ca9e3889e07a62b00e52) ) ROM_LOAD( "136030-222.13f", 0x0c000, 0x4000, CRC(7b3f21be) SHA1(8fe62401f9b78c7a3e62b544c4b705b1bfa9b8f3) ) ROM_LOAD( "136030-123.13d", 0x10000, 0x4000, CRC(877f554a) SHA1(8b51109cabd84741b024052f892b3172fbe83223) ) /* Page 0 */ ROM_LOAD( "136030-124.13b", 0x14000, 0x4000, CRC(e72d41db) SHA1(1b3fcdc435f1e470e8d5b7241856e398a4c3910e) ) /* Page 1 */ ROM_LOAD( "136030-122.13a", 0x18000, 0x4000, CRC(cce7ced5) SHA1(bff031a637aefca713355dbf251dcb5c2cea0885) ) /* Page 2 */ ROM_REGION( 0x10000, "audiocpu", 0 ) /* space for the sound ROMs */ ROM_LOAD( "136030-133.01c", 0x8000, 0x4000, CRC(6c601c69) SHA1(618b77800bbbb4db34a53ca974a71bdaf89b5930) ) ROM_LOAD( "136030-134.01a", 0xC000, 0x4000, CRC(5e36c564) SHA1(4b0afceb9a1d912f1d5c1f26928d244d5b14ea4a) ) ROM_REGION( 0x02000, "gfx1",0 ) ROM_LOAD( "136030-215.11t", 0x00000, 0x2000, CRC(3e49491f) SHA1(ade5e846069c2fa6edf667469d13ce5a6a45c06d) ) /* Alphanumeric */ ROM_REGION( 0x10000, "gfx2",0 ) ROM_LOAD( "136030-126.06r", 0x00000, 0x8000, CRC(9c55ece8) SHA1(b8faa23314bb0d199ef46199bfabd9cb17510dd3) ) /* Playfield */ ROM_LOAD( "136030-127.06n", 0x08000, 0x8000, CRC(4b09dcc5) SHA1(d46b5f4fb69c4b8d823dd9c4d92f8713badfa44a) ) ROM_REGION( 0x20000, "gfx3", 0 ) ROM_LOAD( "136030-130.01h", 0x00000, 0x8000, CRC(2646a793) SHA1(dcb5fd50eafbb27565bce099a884be83a9d82285) ) /* Sprites */ ROM_LOAD( "136030-131.01f", 0x08000, 0x8000, CRC(60107350) SHA1(ded03a46996d3f2349df7f59fd435a7ad6ed465e) ) ROM_LOAD( "136030-128.01m", 0x10000, 0x8000, CRC(24663184) SHA1(5eba142ed926671ee131430944e59f21a55a5c57) ) ROM_LOAD( "136030-129.01k", 0x18000, 0x8000, CRC(ac86b98c) SHA1(9f86c8801a7293fa46e9432f1651dd85bf00f4b9) ) ROM_REGION( 0x1000, "proms", 0 ) /* background smoothing */ ROM_LOAD( "136030-117.bin", 0x0000, 0x0400, CRC(9831bd55) SHA1(12945ef2d1582914125b9ee591567034d71d6573) ) ROM_LOAD( "136030-118.bin", 0x0800, 0x0400, CRC(261fbfe7) SHA1(efc65a74a3718563a07b718e34d8a7aa23339a69) ) ROM_END /************************************* * * Game drivers * *************************************/ GAME( 1984, jedi, 0, jedi, jedi, 0, ROT0, "Atari", "Return of the Jedi", GAME_SUPPORTS_SAVE )