diff options
Diffstat (limited to 'src/mame/drivers/saitek_risc2500.cpp')
-rw-r--r-- | src/mame/drivers/saitek_risc2500.cpp | 336 |
1 files changed, 0 insertions, 336 deletions
diff --git a/src/mame/drivers/saitek_risc2500.cpp b/src/mame/drivers/saitek_risc2500.cpp deleted file mode 100644 index bd4b2de5543..00000000000 --- a/src/mame/drivers/saitek_risc2500.cpp +++ /dev/null @@ -1,336 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Sandro Ronco -/****************************************************************************** - -Saitek RISC 2500, Mephisto Montreux - -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 - -TODO: -- bootrom disable timer shouldn't be needed, real ARM has already fetched the next opcode -- Sound is too short and high pitched, better when you underclock the cpu. - Is cpu cycle timing wrong? I suspect conditional branch timing due to cache miss - (pipeline has to refill). The delay loop between writing to the speaker is simply: - SUBS R2, R2, #$1, BNE $2000cd8 - -******************************************************************************/ - - -#include "emu.h" -#include "cpu/arm/arm.h" -#include "machine/ram.h" -#include "machine/nvram.h" -#include "machine/sensorboard.h" -#include "sound/dac.h" -#include "sound/volt_reg.h" -#include "emupal.h" -#include "screen.h" -#include "speaker.h" - -#include "saitek_risc2500.lh" - - -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_ram(*this, "ram") - , m_nvram(*this, "nvram") - , m_dac(*this, "dac") - , m_board(*this, "board") - , m_inputs(*this, "P%u", 0) - , m_digits(*this, "digit%u", 0U) - , m_syms(*this, "sym%u", 0U) - , m_leds(*this, "led%u", 0U) - { } - - DECLARE_INPUT_CHANGED_MEMBER(on_button); - - void risc2500(machine_config &config); - -protected: - DECLARE_READ32_MEMBER(p1000_r); - DECLARE_WRITE32_MEMBER(p1000_w); - DECLARE_READ32_MEMBER(disable_boot_rom_r); - TIMER_CALLBACK_MEMBER(disable_boot_rom); - - virtual void machine_start() override; - virtual void machine_reset() override; - uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); - void install_boot_rom(); - void remove_boot_rom(); - void lcd_palette(palette_device &palette) const; - - void risc2500_mem(address_map &map); - -private: - required_device<arm_cpu_device> m_maincpu; - required_device<ram_device> m_ram; - required_device<nvram_device> m_nvram; - required_device<dac_byte_interface> m_dac; - required_device<sensorboard_device> m_board; - required_ioport_array<8> m_inputs; - output_finder<12> m_digits; - output_finder<14> m_syms; - output_finder<16> m_leds; - - uint32_t m_p1000; - uint16_t m_vram_addr; - uint8_t m_vram[0x100]; - emu_timer *m_boot_rom_disable_timer; -}; - - -void risc2500_state::install_boot_rom() -{ - m_maincpu->space(AS_PROGRAM).install_rom(0x00000000, 0x001ffff, memregion("maincpu")->base()); -} - -void risc2500_state::remove_boot_rom() -{ - m_maincpu->space(AS_PROGRAM).install_ram(0x00000000, m_ram->size() - 1, m_ram->pointer()); -} - -void risc2500_state::lcd_palette(palette_device &palette) const -{ - palette.set_pen_color(0, rgb_t(131, 136, 139)); // lcd pixel off - palette.set_pen_color(1, rgb_t(92, 83, 88)); // lcd pixel on - palette.set_pen_color(2, rgb_t(138, 146, 148)); // background -} - -uint32_t risc2500_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - bitmap.fill(2, cliprect); - - for(int c=0; c<12; c++) - { - // 12 characters 5 x 7 - for(int x=0; x<5; x++) - { - uint8_t gfx = bitswap<8>(m_vram[c*5 + x], 6,5,0,1,2,3,4,7); - - for(int y=0; y<7; y++) - bitmap.pix16(y, 71 - (c*6 + x)) = (gfx >> (y + 1)) & 1; - } - - // LCD digits and symbols - int data_addr = 0x40 + c * 5; - uint16_t data = ((m_vram[data_addr + 1] & 0x3) << 5) | ((m_vram[data_addr + 2] & 0x7) << 2) | (m_vram[data_addr + 4] & 0x3); - data = bitswap<8>(data, 7,3,0,1,4,6,5,2) | ((m_vram[data_addr - 1] & 0x04) ? 0x80 : 0); - - m_digits[c] = data; - m_syms[c] = BIT(m_vram[data_addr + 1], 2); - } - - m_syms[12] = BIT(m_vram[0x63], 0); - m_syms[13] = BIT(m_vram[0x4a], 0); - - return 0; -} - -INPUT_CHANGED_MEMBER(risc2500_state::on_button) -{ - if (newval) - { - install_boot_rom(); - m_maincpu->reset(); - } -} - -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") - - 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") - - 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") - - 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") - - 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") - - 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") - - 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") - - 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 - - -READ32_MEMBER(risc2500_state::p1000_r) -{ - uint32_t data = 0; - - for(int i=0; i<8; i++) - { - if (m_p1000 & (1 << i)) - { - data |= m_inputs[i]->read(); - data |= m_board->read_rank(i, true); - } - } - - return data; -} - -WRITE32_MEMBER(risc2500_state::p1000_w) -{ - if ((data & 0xff000000) == 0x01000000) // VRAM address - { - if (data & 0x80) - m_vram_addr = (m_vram_addr & ~0x40) | (data & 0x01 ? 0x40 : 0); - else - m_vram_addr = (m_vram_addr & 0x40) | (data & 0xff); - } - else if (data & 0x04000000) // VRAM write - { - if (!(data & 0x08000000)) - m_vram[m_vram_addr++ & 0x7f] = data & 0xff; - } - else if (data & 0x80000000) // Vertical LED - { - for(int i=0; i<8; i++) - m_leds[i] = BIT(data, i); - } - else if (data & 0x40000000) // Horizontal LED - { - for(int i=0; i<8; i++) - m_leds[8 + i] = BIT(data, i); - } - else if ((data & 0xff000000) == 0x08000000) // Power OFF - { - memset(m_vram, 0, sizeof(m_vram)); - } - - m_dac->write(data >> 28 & 3); // Speaker - - m_p1000 = data; -} - -READ32_MEMBER(risc2500_state::disable_boot_rom_r) -{ - m_boot_rom_disable_timer->adjust(m_maincpu->cycles_to_attotime(10)); - return 0; -} - -TIMER_CALLBACK_MEMBER(risc2500_state::disable_boot_rom) -{ - remove_boot_rom(); -} - -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)); - - save_item(NAME(m_p1000)); - save_item(NAME(m_vram_addr)); - save_item(NAME(m_vram)); - - machine().save().register_postload(save_prepost_delegate(FUNC(risc2500_state::remove_boot_rom), this)); -} - -void risc2500_state::machine_reset() -{ - m_p1000 = 0; - m_vram_addr = 0; - - install_boot_rom(); -} - -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); -} - -void risc2500_state::risc2500(machine_config &config) -{ - ARM(config, m_maincpu, XTAL(28'322'000) / 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 - - screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); - screen.set_refresh_hz(50); - screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */ - screen.set_size(12*6+1, 7); - screen.set_visarea(0, 12*6, 0, 7-1); - screen.set_screen_update(FUNC(risc2500_state::screen_update)); - screen.set_palette("palette"); - - config.set_default_layout(layout_saitek_risc2500); - - PALETTE(config, "palette", FUNC(risc2500_state::lcd_palette), 3); - - 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)); - - RAM(config, m_ram).set_default_size("2M").set_extra_options("128K, 256K, 512K, 1M, 2M"); - - 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 - voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref")); - vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT); - vref.add_route(0, "dac", -1.0, DAC_VREF_NEG_INPUT); -} - - -/* ROM definitions */ - -ROM_START( risc2500 ) - ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE ) - ROM_SYSTEM_BIOS( 0, "v104", "v1.04" ) - ROMX_LOAD("s2500_v104.bin", 0x000000, 0x020000, CRC(84a06178) SHA1(66f4d9f53de6da865a3ebb4af1d6a3e245c59a3c), ROM_BIOS(0)) - ROM_SYSTEM_BIOS( 1, "v103", "v1.03" ) - ROMX_LOAD("s2500_v103.bin", 0x000000, 0x020000, CRC(7a707e82) SHA1(87187fa58117a442f3abd30092cfcc2a4d7c7efc), ROM_BIOS(1)) -ROM_END - -ROM_START( montreux ) - ROM_REGION( 0x40000, "maincpu", ROMREGION_ERASE ) - ROM_SYSTEM_BIOS( 0, "v100", "v1.00" ) - ROMX_LOAD("montreux.bin", 0x000000, 0x040000, CRC(db374cf3) SHA1(44dd60d56779084326c3dfb41d2137ebf0b4e0ac), ROM_BIOS(0)) -ROM_END - - -/* 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", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_SOUND ) -CONS( 1995, montreux, 0, 0, risc2500, risc2500, risc2500_state, empty_init, "Saitek / Tasc", "Mephisto Montreux", MACHINE_SUPPORTS_SAVE | MACHINE_CLICKABLE_ARTWORK | MACHINE_IMPERFECT_SOUND ) // after Saitek bought Hegener + Glaser |