diff options
Diffstat (limited to 'src/mame/drivers/saitek_risc2500.cpp')
-rw-r--r-- | src/mame/drivers/saitek_risc2500.cpp | 335 |
1 files changed, 211 insertions, 124 deletions
diff --git a/src/mame/drivers/saitek_risc2500.cpp b/src/mame/drivers/saitek_risc2500.cpp index 9de8adc73ed..bc56d3a706e 100644 --- a/src/mame/drivers/saitek_risc2500.cpp +++ b/src/mame/drivers/saitek_risc2500.cpp @@ -1,5 +1,5 @@ // license:BSD-3-Clause -// copyright-holders:Sandro Ronco +// copyright-holders:Sandro Ronco, hap /****************************************************************************** Saitek RISC 2500, Mephisto Montreux @@ -8,9 +8,12 @@ The chess engine is also compatible with Tasc's The ChessMachine software. The hardware+software appears to have been subcontracted to Tasc. It has similarities with Tasc R30, PCB label and Montreux repair manual schematics footnotes say TASC23C. -notes: -- holding LEFT+RIGHT on boot load the QC TestMode -- holding UP+DOWN on boot load the TestMode +To make sure it continues the game at next power-on, press the OFF button before +exiting MAME. If nvram is broken somehow, boot with the BACK button held down. + +Undocumented buttons: +- hold LEFT+RIGHT on boot to start the QC TestMode +- hold UP+DOWN on boot to start the TestMode TODO: - bootrom disable timer shouldn't be needed, real ARM has already fetched the next opcode @@ -21,29 +24,36 @@ TODO: ******************************************************************************/ - #include "emu.h" + #include "cpu/arm/arm.h" #include "machine/ram.h" #include "machine/nvram.h" #include "machine/sensorboard.h" +#include "machine/timer.h" #include "video/sed1520.h" #include "sound/dac.h" + #include "emupal.h" #include "screen.h" #include "speaker.h" +// internal artwork #include "saitek_risc2500.lh" +namespace { + class risc2500_state : public driver_device { public: risc2500_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") + , m_rom(*this, "maincpu") , m_ram(*this, "ram") , m_nvram(*this, "nvram") + , m_disable_bootrom(*this, "disable_bootrom") , m_dac(*this, "dac") , m_lcdc(*this, "lcdc") , m_board(*this, "board") @@ -53,29 +63,22 @@ public: , m_leds(*this, "led%u", 0U) { } + DECLARE_INPUT_CHANGED_MEMBER(acl_button) { if (newval) power_off(); } DECLARE_INPUT_CHANGED_MEMBER(on_button); void risc2500(machine_config &config); protected: - uint32_t p1000_r(); - void p1000_w(uint32_t data); - uint32_t disable_boot_rom_r(); - TIMER_CALLBACK_MEMBER(disable_boot_rom); - virtual void machine_start() override; virtual void machine_reset() override; - SED1520_UPDATE_CB(screen_update_cb); - void install_boot_rom(); - void remove_boot_rom(); - void lcd_palette(palette_device &palette) const; - - void risc2500_mem(address_map &map); + virtual void device_post_load() override { install_bootrom(m_bootrom_enabled); } private: required_device<arm_cpu_device> m_maincpu; + required_region_ptr<u32> m_rom; required_device<ram_device> m_ram; required_device<nvram_device> m_nvram; + required_device<timer_device> m_disable_bootrom; required_device<dac_byte_interface> m_dac; required_device<sed1520_device> m_lcdc; required_device<sensorboard_device> m_board; @@ -84,21 +87,51 @@ private: output_finder<14> m_syms; output_finder<16> m_leds; - uint32_t m_p1000; - emu_timer *m_boot_rom_disable_timer; -}; + void risc2500_mem(address_map &map); + + void lcd_palette(palette_device &palette) const; + SED1520_UPDATE_CB(screen_update_cb); + u32 input_r(); + void control_w(u32 data); + void power_off(); + u32 disable_boot_rom_r(); + void install_bootrom(bool enable); + TIMER_DEVICE_CALLBACK_MEMBER(disable_bootrom) { install_bootrom(false); } + bool m_bootrom_enabled = false; -void risc2500_state::install_boot_rom() + u32 m_control = 0; + bool m_power = false; +}; + +void risc2500_state::machine_start() { - m_maincpu->space(AS_PROGRAM).install_rom(0x00000000, 0x001ffff, memregion("maincpu")->base()); + m_digits.resolve(); + m_syms.resolve(); + m_leds.resolve(); + + m_nvram->set_base(m_ram->pointer(), m_ram->size()); + + // register for savestates + save_item(NAME(m_power)); + save_item(NAME(m_bootrom_enabled)); + save_item(NAME(m_control)); } -void risc2500_state::remove_boot_rom() +void risc2500_state::machine_reset() { - m_maincpu->space(AS_PROGRAM).install_ram(0x00000000, m_ram->size() - 1, m_ram->pointer()); + install_bootrom(true); + + m_power = true; + m_control = 0; } + + +/****************************************************************************** + Video +******************************************************************************/ + void risc2500_state::lcd_palette(palette_device &palette) const { palette.set_pen_color(0, rgb_t(131, 136, 139)); // lcd pixel off @@ -110,16 +143,16 @@ SED1520_UPDATE_CB(risc2500_state::screen_update_cb) { bitmap.fill(2, cliprect); - for (int c=0; c<12; c++) + for (int c = 0; c < 12; c++) { // 12 characters 5 x 7 - for (int x=0; x<5; x++) + for (int x = 0; x < 5; x++) { - uint8_t gfx = 0; + u8 gfx = 0; if (lcd_on) gfx = bitswap<8>(dram[c * 5 + x], 6,5,0,1,2,3,4,7); - for (int y=1; y<8; y++) + for (int y = 1; y < 8; y++) bitmap.pix(y, 71 - (c * 6 + x)) = BIT(gfx, y); } @@ -127,7 +160,7 @@ SED1520_UPDATE_CB(risc2500_state::screen_update_cb) if (lcd_on) { int data_addr = 80 + c * 5; - uint16_t data = ((dram[data_addr + 1] & 0x3) << 5) | ((dram[data_addr + 2] & 0x7) << 2) | (dram[data_addr + 4] & 0x3); + u16 data = ((dram[data_addr + 1] & 0x3) << 5) | ((dram[data_addr + 2] & 0x7) << 2) | (dram[data_addr + 4] & 0x3); data = bitswap<8>(data, 7,3,0,1,4,6,5,2) | ((dram[data_addr - 1] & 0x04) ? 0x80 : 0); m_digits[c] = data; @@ -146,71 +179,82 @@ SED1520_UPDATE_CB(risc2500_state::screen_update_cb) return 0; } -INPUT_CHANGED_MEMBER(risc2500_state::on_button) + + +/****************************************************************************** + I/O +******************************************************************************/ + +// bootrom bankswitch + +void risc2500_state::install_bootrom(bool enable) { - if (newval) - { - install_boot_rom(); - m_maincpu->reset(); - } + address_space &program = m_maincpu->space(AS_PROGRAM); + program.unmap_readwrite(0, std::max(m_rom.bytes(), m_ram->size()) - 1); + + if (enable) + program.install_rom(0, m_rom.bytes() - 1, m_rom); + else + program.install_ram(0, m_ram->size() - 1, m_ram->pointer()); + + m_bootrom_enabled = enable; } -static INPUT_PORTS_START( risc2500 ) - PORT_START("P0") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_1_PAD) PORT_NAME("Pawn") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_BACKSPACE) PORT_NAME("BACK") +u32 risc2500_state::disable_boot_rom_r() +{ + // disconnect bootrom from the bus after next opcode + if (m_bootrom_enabled && !m_disable_bootrom->enabled() && !machine().side_effects_disabled()) + m_disable_bootrom->adjust(m_maincpu->cycles_to_attotime(5)); - PORT_START("P1") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_2_PAD) PORT_NAME("Knight") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_ENTER) PORT_NAME("ENTER") + return 0; +} - PORT_START("P2") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_3_PAD) PORT_NAME("Bishop") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_DOWN) PORT_NAME("DOWN") - PORT_START("P3") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("Rook") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_UP) PORT_NAME("UP") +// soft power on/off - PORT_START("P4") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("Queen") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_M) PORT_NAME("MENU") +INPUT_CHANGED_MEMBER(risc2500_state::on_button) +{ + if (newval && !m_power) + { + m_maincpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE); + machine_reset(); + } +} - PORT_START("P5") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("King") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_L) PORT_NAME("PLAY") +void risc2500_state::power_off() +{ + m_power = false; + m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); - PORT_START("P6") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_RIGHT) PORT_NAME("RIGHT") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_N) PORT_NAME("NEW GAME") + // clear display + m_lcdc->reset(); - PORT_START("P7") - PORT_BIT(0x40000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_LEFT) PORT_NAME("LEFT") - PORT_BIT(0x80000000, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_O) PORT_NAME("OFF") + for (int i = 0; i < 16; i++) + m_leds[i] = 0; +} - PORT_START("RESET") - PORT_BIT(0x00000001, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_I) PORT_NAME("ON") PORT_CHANGED_MEMBER(DEVICE_SELF, risc2500_state, on_button, 0) -INPUT_PORTS_END +// main I/O -uint32_t risc2500_state::p1000_r() +u32 risc2500_state::input_r() { - uint32_t data = 0; + u32 data = 0; - for (int i=0; i<8; i++) + for (int i = 0; i < 8; i++) { - if (m_p1000 & (1 << i)) + if (m_control & (1 << i)) { - data |= m_inputs[i]->read(); + data |= m_inputs[i]->read() << 24; data |= m_board->read_rank(i, true); } } - return data | ((uint32_t)m_lcdc->status_read() << 16); + return data | ((u32)m_lcdc->status_read() << 16); } -void risc2500_state::p1000_w(uint32_t data) +void risc2500_state::control_w(u32 data) { + // lcd if (!BIT(data, 27)) { if (BIT(data, 26)) @@ -219,73 +263,118 @@ void risc2500_state::p1000_w(uint32_t data) m_lcdc->control_write(data); } - if (BIT(data, 31)) // Vertical LED + // vertical leds + if (BIT(data, 31)) { - for (int i=0; i<8; i++) - m_leds[i] = BIT(data, i); + for (int i = 0; i < 8; i++) + m_leds[i] = BIT(~data, i); } - if (BIT(data, 30)) // Horizontal LED + // horizontal leds + if (BIT(data, 30)) { - for (int i=0; i<8; i++) - m_leds[8 + i] = BIT(data, i); + for (int i = 0; i < 8; i++) + m_leds[8 + i] = BIT(~data, i); } - m_dac->write(data >> 28 & 3); // Speaker + // speaker + m_dac->write(data >> 28 & 3); - m_p1000 = data; -} + // power-off + if (BIT(m_control & ~data, 24)) + power_off(); -uint32_t risc2500_state::disable_boot_rom_r() -{ - m_boot_rom_disable_timer->adjust(m_maincpu->cycles_to_attotime(10)); - return 0; + m_control = data; } -TIMER_CALLBACK_MEMBER(risc2500_state::disable_boot_rom) + + +/****************************************************************************** + Address Maps +******************************************************************************/ + +void risc2500_state::risc2500_mem(address_map &map) { - remove_boot_rom(); + map(0x01800000, 0x01800003).r(FUNC(risc2500_state::disable_boot_rom_r)); + map(0x01000000, 0x01000003).rw(FUNC(risc2500_state::input_r), FUNC(risc2500_state::control_w)); + map(0x02000000, 0x0203ffff).rom().region("maincpu", 0); } -void risc2500_state::machine_start() -{ - m_digits.resolve(); - m_syms.resolve(); - m_leds.resolve(); - m_nvram->set_base(m_ram->pointer(), m_ram->size()); - m_boot_rom_disable_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(risc2500_state::disable_boot_rom), this)); +/****************************************************************************** + Input Ports +******************************************************************************/ - save_item(NAME(m_p1000)); +static INPUT_PORTS_START( risc2500 ) + PORT_START("P0") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Pawn") PORT_CODE(KEYCODE_1) PORT_CODE(KEYCODE_1_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("BACK") PORT_CODE(KEYCODE_BACKSPACE) - machine().save().register_postload(save_prepost_delegate(FUNC(risc2500_state::remove_boot_rom), this)); -} + PORT_START("P1") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Knight") PORT_CODE(KEYCODE_2) PORT_CODE(KEYCODE_2_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("ENTER") PORT_CODE(KEYCODE_ENTER) PORT_CODE(KEYCODE_ENTER_PAD) -void risc2500_state::machine_reset() -{ - m_p1000 = 0; + PORT_START("P2") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Bishop") PORT_CODE(KEYCODE_3) PORT_CODE(KEYCODE_3_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("DOWN") PORT_CODE(KEYCODE_DOWN) - install_boot_rom(); -} + PORT_START("P3") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Rook") PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("UP") PORT_CODE(KEYCODE_UP) -void risc2500_state::risc2500_mem(address_map &map) -{ - map(0x00000000, 0x0001ffff).ram(); - map(0x01800000, 0x01800003).r(FUNC(risc2500_state::disable_boot_rom_r)); - map(0x01000000, 0x01000003).rw(FUNC(risc2500_state::p1000_r), FUNC(risc2500_state::p1000_w)); - map(0x02000000, 0x0203ffff).rom().region("maincpu", 0); -} + PORT_START("P4") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("Queen") PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("MENU") PORT_CODE(KEYCODE_M) + + PORT_START("P5") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("King") PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("PLAY") PORT_CODE(KEYCODE_L) + + PORT_START("P6") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("RIGHT") PORT_CODE(KEYCODE_RIGHT) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("NEW GAME") PORT_CODE(KEYCODE_N) + + PORT_START("P7") + PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("LEFT") PORT_CODE(KEYCODE_LEFT) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("OFF") PORT_CODE(KEYCODE_O) + + PORT_START("RESET") + PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("ON") PORT_CODE(KEYCODE_I) PORT_CHANGED_MEMBER(DEVICE_SELF, risc2500_state, on_button, 0) + PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_NAME("ACL") PORT_CODE(KEYCODE_F1) PORT_CHANGED_MEMBER(DEVICE_SELF, risc2500_state, acl_button, 0) +INPUT_PORTS_END + + + +/****************************************************************************** + Machine Configs +******************************************************************************/ void risc2500_state::risc2500(machine_config &config) { - ARM(config, m_maincpu, XTAL(28'322'000) / 2); // VY86C010 + /* basic machine hardware */ + ARM(config, m_maincpu, 28.322_MHz_XTAL / 2); // VY86C010 m_maincpu->set_addrmap(AS_PROGRAM, &risc2500_state::risc2500_mem); m_maincpu->set_copro_type(arm_cpu_device::copro_type::VL86C020); m_maincpu->set_periodic_int(FUNC(risc2500_state::irq1_line_hold), attotime::from_hz(32.768_kHz_XTAL/128)); // 256Hz + TIMER(config, "disable_bootrom").configure_generic(FUNC(risc2500_state::disable_bootrom)); + + RAM(config, m_ram).set_extra_options("128K, 256K, 512K, 1M, 2M"); + m_ram->set_default_size("2M"); + m_ram->set_default_value(0); + + NVRAM(config, "nvram", nvram_device::DEFAULT_NONE); + + SENSORBOARD(config, m_board); + m_board->set_type(sensorboard_device::BUTTONS); + m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess)); + m_board->set_delay(attotime::from_msec(100)); + m_board->set_nvram_enable(true); + + /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); - screen.set_refresh_hz(50); + screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ screen.set_size(12*6+1, 7+2); screen.set_visarea_full(); @@ -299,25 +388,16 @@ void risc2500_state::risc2500(machine_config &config) SED1520(config, m_lcdc); m_lcdc->set_screen_update_cb(FUNC(risc2500_state::screen_update_cb)); - SENSORBOARD(config, m_board); - m_board->set_type(sensorboard_device::BUTTONS); - m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess)); - m_board->set_delay(attotime::from_msec(100)); - m_board->set_nvram_enable(true); - - RAM(config, m_ram).set_extra_options("128K, 256K, 512K, 1M, 2M"); - m_ram->set_default_size("2M"); - m_ram->set_default_value(0); - - NVRAM(config, "nvram", nvram_device::DEFAULT_NONE); - /* sound hardware */ SPEAKER(config, "speaker").front_center(); - DAC_2BIT_BINARY_WEIGHTED_ONES_COMPLEMENT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25); // unknown DAC + DAC_2BIT_BINARY_WEIGHTED_ONES_COMPLEMENT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25); } -/* ROM definitions */ + +/****************************************************************************** + ROM Definitions +******************************************************************************/ ROM_START( risc2500 ) ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 ) @@ -330,12 +410,19 @@ ROM_START( risc2500a ) ROM_END ROM_START( montreux ) // v1.00 - ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE00 ) + ROM_REGION( 0x40000, "maincpu", 0 ) ROM_LOAD("rt17b_103_u_7.u7", 0x000000, 0x040000, CRC(db374cf3) SHA1(44dd60d56779084326c3dfb41d2137ebf0b4e0ac) ) // 27C020-15 ROM_END +} // anonymous namespace + + + +/****************************************************************************** + Drivers +******************************************************************************/ -/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS */ +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY, FULLNAME, FLAGS CONS( 1992, risc2500, 0, 0, risc2500, risc2500, risc2500_state, empty_init, "Saitek / Tasc", "Kasparov RISC 2500 (v1.04)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_SOUND ) CONS( 1992, risc2500a, risc2500, 0, risc2500, risc2500, risc2500_state, empty_init, "Saitek / Tasc", "Kasparov RISC 2500 (v1.03)", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_SOUND ) |