// license:BSD-3-Clause // copyright-holders:Sandro Ronco /*************************************************************************** Sega Visual Memory Unit driver by Sandro Ronco TODO: - add more bios versions - serial ****************************************************************************/ #include "emu.h" #include "cpu/lc8670/lc8670.h" #include "imagedev/snapquik.h" #include "machine/intelfsh.h" #include "sound/spkrdev.h" #include "emupal.h" #include "screen.h" #include "softlist.h" #include "speaker.h" #include "svmu.lh" #define PIXEL_SIZE 7 #define PIXEL_DISTANCE 1 class svmu_state : public driver_device { public: svmu_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_flash(*this, "flash") , m_speaker(*this, "speaker") , m_bios(*this, "bios") { } void svmu(machine_config &config); protected: virtual void machine_reset() override; private: LC8670_LCD_UPDATE(svmu_lcd_update); void svmu_palette(palette_device &palette) const; DECLARE_WRITE8_MEMBER(page_w); DECLARE_READ8_MEMBER(prog_r); DECLARE_WRITE8_MEMBER(prog_w); DECLARE_READ8_MEMBER(p1_r); DECLARE_WRITE8_MEMBER(p1_w); DECLARE_READ8_MEMBER(p7_r); DECLARE_QUICKLOAD_LOAD_MEMBER(quickload_cb); void svmu_io_mem(address_map &map); void svmu_mem(address_map &map); required_device m_maincpu; required_device m_flash; required_device m_speaker; required_region_ptr m_bios; uint8_t m_page; }; WRITE8_MEMBER(svmu_state::page_w) { m_page = data & 0x03; } READ8_MEMBER(svmu_state::prog_r) { if (m_page == 1) return m_flash->read(offset); else if (m_page == 2) return m_flash->read(0x10000 + offset); else return m_bios[offset]; } WRITE8_MEMBER(svmu_state::prog_w) { if (m_page == 1) m_flash->write(offset, data); else if (m_page == 2) m_flash->write(0x10000 + offset, data); } /* Port 1 x--- ---- PWM output -x-- ---- BUZ --x- ---- SCK1 ---x ---- SB1 ---- x--- SO1 ---- -x-- SCK0 ---- --x- SB0 ---- ---x SO0 */ READ8_MEMBER(svmu_state::p1_r) { return 0; } WRITE8_MEMBER(svmu_state::p1_w) { m_speaker->level_w(BIT(data, 7)); } /* Port 7 ---- x--- ID1 ---- -x-- ID0 ---- --x- battery low voltage ---- ---x 5V detection */ READ8_MEMBER(svmu_state::p7_r) { return (ioport("BATTERY")->read()<<1); } void svmu_state::svmu_mem(address_map &map) { map(0x0000, 0xffff).rw(FUNC(svmu_state::prog_r), FUNC(svmu_state::prog_w)); } void svmu_state::svmu_io_mem(address_map &map) { map(LC8670_PORT1, LC8670_PORT1).rw(FUNC(svmu_state::p1_r), FUNC(svmu_state::p1_w)); map(LC8670_PORT3, LC8670_PORT3).portr("P3"); map(LC8670_PORT7, LC8670_PORT7).r(FUNC(svmu_state::p7_r)); } /* Input ports */ static INPUT_PORTS_START( svmu ) PORT_START( "P3" ) PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_NAME("Up") PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_NAME("Down") PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_NAME("Left") PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_NAME("Right") PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_NAME("Button A") PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_NAME("Button B") PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("MODE") PORT_CODE( KEYCODE_M ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("SLEEP") PORT_CODE( KEYCODE_S ) PORT_START("BATTERY") PORT_CONFNAME( 0x01, 0x01, "Battery" ) PORT_CONFSETTING( 0x01, "Good" ) PORT_CONFSETTING( 0x00, "Poor" ) INPUT_PORTS_END void svmu_state::machine_reset() { m_page = 0; } void svmu_state::svmu_palette(palette_device &palette) const { palette.set_pen_color(0, rgb_t(138, 146, 148)); palette.set_pen_color(1, rgb_t(92, 83, 88)); } LC8670_LCD_UPDATE(svmu_state::svmu_lcd_update) { if (lcd_enabled) { for (int y=0; y<32; y++) for (int x=0; x<6; x++) { int gfx = vram[y*6 + x]; for (int b = 0; b < 8; b++) bitmap.plot_box((x*8 + b) * (PIXEL_SIZE + PIXEL_DISTANCE), y * (PIXEL_SIZE + PIXEL_DISTANCE), PIXEL_SIZE, PIXEL_SIZE, BIT(gfx,7-b)); } } else { bitmap.fill(0, cliprect); } machine().output().set_value("file_icon" , lcd_enabled ? BIT(vram[0xc1],6) : 0); machine().output().set_value("game_icon" , lcd_enabled ? BIT(vram[0xc2],4) : 0); machine().output().set_value("clock_icon", lcd_enabled ? BIT(vram[0xc3],2) : 0); machine().output().set_value("flash_icon", lcd_enabled ? BIT(vram[0xc4],0) : 0); return 0; } inline void vmufat_write_byte(uint8_t* flash, uint8_t block, offs_t offset, uint8_t data) { flash[(block * 512) + offset] = data; } inline void vmufat_write_word(uint8_t* flash, uint8_t block, offs_t offset, uint16_t data) { // 16-bit data are stored in little endian flash[(block * 512) + offset + 0] = data & 0xff; flash[(block * 512) + offset + 1] = (data>>8) & 0xff; } QUICKLOAD_LOAD_MEMBER(svmu_state::quickload_cb) { uint32_t size = image.length(); uint8_t *flash = m_flash->base(); image.fread(flash, size); // verify if image is already a valid VMUFAT file system bool valid_vmufat = true; if (size == 0x20000) { for (int i=0; i<0x10; i++) if (flash[255 * 512 + i] != 0x55) { valid_vmufat = false; break; } } else { valid_vmufat = false; } if (!valid_vmufat) { // more info about the VMUFAT here: http://mc.pp.se/dc/vms/flashmem.html //-------------------------------- Formatting -------------------------------- memset(flash + 241*512, 0, 15*512); // clears the last 15 blocks that contain file system information for (int i=0; i<0x10; i++) vmufat_write_byte(flash, 255, i, 0x55); // first 16 bytes should be 0x55 to indicate a properly formatted card vmufat_write_byte(flash, 255, 0x10, 0x00); // custom VMS colour (1 = use custom colours, 0 = standard colour) vmufat_write_byte(flash, 255, 0x11, 0x00); // VMS colour blue component vmufat_write_byte(flash, 255, 0x12, 0x00); // VMS colour green component vmufat_write_byte(flash, 255, 0x13, 0x00); // VMS colour red component vmufat_write_byte(flash, 255, 0x14, 0x00); // VMS colour alpha component vmufat_write_byte(flash, 255, 0x30, 0x19); // Century (BCD) vmufat_write_byte(flash, 255, 0x31, 0x99); // Year (BCD) vmufat_write_byte(flash, 255, 0x32, 0x01); // Month (BCD) vmufat_write_byte(flash, 255, 0x33, 0x01); // Day (BCD) vmufat_write_byte(flash, 255, 0x34, 0x00); // Hour (BCD) vmufat_write_byte(flash, 255, 0x35, 0x00); // Minute (BCD) vmufat_write_byte(flash, 255, 0x36, 0x00); // Second (BCD) vmufat_write_byte(flash, 255, 0x37, 0x00); // Day of week (0 = Monday, 6 = Sunday) vmufat_write_word(flash, 255, 0x44, 0x00ff); // location of Root vmufat_write_word(flash, 255, 0x46, 0x00fe); // location of FAT (254) vmufat_write_word(flash, 255, 0x48, 0x0001); // size of FAT in blocks (1) vmufat_write_word(flash, 255, 0x4a, 0x00fd); // location of Directory (253) vmufat_write_word(flash, 255, 0x4c, 0x000d); // size of Directory in blocks (13) vmufat_write_word(flash, 255, 0x4e, 0x0000); // icon shape for this VMS (0-123) vmufat_write_word(flash, 255, 0x50, 0x00c8); // number of user blocks (200) for (int i=0; i<256; i++) vmufat_write_word(flash, 254, i<<1, 0xfffc); // marks all blocks as unallocated for (int i=253; i>241; --i) vmufat_write_word(flash, 254, i<<1, i - 1); // marsk all Directory blocks as allocate vmufat_write_word(flash, 254, 0x1e2, 0xfffa); // marks last Directory block vmufat_write_word(flash, 254, 0x1fc, 0xfffa); // marks FAT block as allocated vmufat_write_word(flash, 254, 0x1fe, 0xfffa); // marks Root block as allocated //-------------------------------- Create the vms file -------------------------------- int vms_blocks = (size / 512) + (size & 0x1ff ? 1 : 0); // number of blocks required for store the vms file for (int i=0; iset_addrmap(AS_PROGRAM, &svmu_state::svmu_mem); m_maincpu->set_addrmap(AS_IO, &svmu_state::svmu_io_mem); /* specific LC8670 configurations */ m_maincpu->set_clock_sources(XTAL(32'768), 600000, XTAL(6'000'000)); // tolerance range of the RC oscillator is 600kHz to 1200kHz m_maincpu->bank_cb().set(FUNC(svmu_state::page_w)); m_maincpu->set_lcd_update_cb(FUNC(svmu_state::svmu_lcd_update)); /* video hardware */ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD)); screen.set_refresh_hz(60); screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate screen.set_size(48 * (PIXEL_SIZE + PIXEL_DISTANCE), 32 * (PIXEL_SIZE + PIXEL_DISTANCE)); screen.set_visarea(0, 48*(PIXEL_SIZE + PIXEL_DISTANCE) - 1, 0, 32*(PIXEL_SIZE + PIXEL_DISTANCE) - 1); screen.set_screen_update("maincpu", FUNC(lc8670_cpu_device::screen_update)); screen.set_palette("palette"); config.set_default_layout(layout_svmu); PALETTE(config, "palette", FUNC(svmu_state::svmu_palette), 2); /* sound hardware */ SPEAKER(config, "mono").front_center(); SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50); /* devices */ ATMEL_29C010(config, m_flash); quickload_image_device &quickload(QUICKLOAD(config, "quickload", "vms,bin")); quickload.set_load_callback(FUNC(svmu_state::quickload_cb)); quickload.set_interface("svmu_quik"); /* Software lists */ SOFTWARE_LIST(config, "quik_list").set_original("svmu"); } /* ROM definition */ ROM_START( svmu ) // some ROMs come from the Sega Katana SDK and are scrambled, a simple way to restore them is to remove the first 4 bytes and xor the whole file for the xor key. ROM_REGION(0x10000, "bios", 0) ROM_DEFAULT_BIOS("en1005b") // Version 1.005,1999/04/28,315-6124-07,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(0, "en1005a", "VMS English BIOS (1.005 1999/04/28)") ROMX_LOAD("en1005-19990428-315-6124-07.bin", 0x0000, 0x10000, CRC(dfd77f4e) SHA1(4a7bfd1b8eb599d87883312df0bb48e0edd13034), ROM_BIOS(0)) // extracted with trojan // Version 1.005,1999/10/26,315-6208-05,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(1, "en1005b", "VMS English BIOS (1.005 1999/10/26)") ROMX_LOAD("en1005-19991026-315-6208-05.bin", 0x0000, 0x10000, CRC(c825003a) SHA1(6242320d705c156f8369969d6caa8c737f01e4f3), ROM_BIOS(1)) // extracted with trojan // Version 1.001,1998/05/28,315-6124-02,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(2, "jp1001", "VMS Japanese BIOS (1.001 1998/05/28)") ROMX_LOAD("jp1001-19980528-315-6124-02.bin", 0x0000, 0x10000, CRC(e6339f4a) SHA1(688b2e1ff8c60bde6e8b07a2d2695cdacc07bd0c), ROM_BIOS(2)) // Version 1.002,1998/06/04,315-6124-03,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(3, "jp1002", "VMS Japanese BIOS (1.002 1998/06/04)") ROMX_LOAD("jp1002-19980604-315-6124-03.bin", 0x0000, 0x10000, CRC(6c020d48) SHA1(9ee7c87d7b033235e0b315a0b421e70deb547c7a), ROM_BIOS(3)) // Version 1.004,1998/09/30,315-6208-01,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(4, "jp1004", "VMS Japanese BIOS (1.004, 1998/09/30)") ROMX_LOAD("jp1004-19980930-315-6208-01.bin", 0x0000, 0x10000, CRC(8e0f867a) SHA1(dc2fa2963138a1049a43f7f36439ad0a416ee8b4), ROM_BIOS(4)) // from Sega Katana SDK (original file: fbios.sbf, CRC: c7c77b3c, xor key: 0x37) // Version 1.005,1998/12/09,315-6124-05,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(5, "jp1005a", "VMS Japanese BIOS (1.005 1998/12/09)") ROMX_LOAD("jp1005-19981209-315-6124-05.bin", 0x0000, 0x10000, CRC(47623324) SHA1(fca1aceff8a2f8c6826f3a865f4d5ef88dfd9ed1), ROM_BIOS(5)) // Version 1.005,1999/10/26,315-6208-04,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(6, "jp1005b", "VMS Japanese BIOS (1.005 1999/10/26)") ROMX_LOAD("jp1005-19991026-315-6208-04.bin", 0x0000, 0x10000, CRC(6cab02c2) SHA1(6cc2fbf4a67770988922117c300d006aa20899ac), ROM_BIOS(6)) // extracted with trojan // Version 1.004,1998/09/30,315-6208-01,SEGA Visual Memory System BIOS Produced by Sue ROM_SYSTEM_BIOS(7, "dev1004", "VMS Japanese Development BIOS (1.004 1998/09/30)") // automatically boot the first game found in the flash ROMX_LOAD( "jp1004-19980930-315-6208-01-dev.bin", 0x0000, 0x10000, CRC(395e25f2) SHA1(37dea034322b5b80b35b2de784298d32c71ba7a3), ROM_BIOS(7)) // from Sega Katana SDK (original file: qbios.sbf, CRC: eed5524c, xor key: 0x43) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS */ COMP( 1998, svmu, 0, 0, svmu, svmu, svmu_state, empty_init, "Sega", "Visual Memory Unit", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)