diff options
Diffstat (limited to 'trunk/src/mame/drivers/jedi.c')
-rw-r--r-- | trunk/src/mame/drivers/jedi.c | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/trunk/src/mame/drivers/jedi.c b/trunk/src/mame/drivers/jedi.c new file mode 100644 index 00000000000..b08a3011f96 --- /dev/null +++ b/trunk/src/mame/drivers/jedi.c @@ -0,0 +1,410 @@ +/*************************************************************************** + + 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<jedi_state>(); + 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<jedi_state>(); + + /* 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<jedi_state>(); + + /* 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<jedi_state>(); + 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<jedi_state>(); + + 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<jedi_state>(); + + if (state->m_nvram_enabled) + state->m_nvram[offset] = data; +} + + +static WRITE8_HANDLER( nvram_enable_w ) +{ + jedi_state *state = space->machine().driver_data<jedi_state>(); + + 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 ) |