diff options
Diffstat (limited to 'src/mame/drivers/svmu.cpp')
-rw-r--r-- | src/mame/drivers/svmu.cpp | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/src/mame/drivers/svmu.cpp b/src/mame/drivers/svmu.cpp new file mode 100644 index 00000000000..912e2dfd87a --- /dev/null +++ b/src/mame/drivers/svmu.cpp @@ -0,0 +1,359 @@ +// 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/speaker.h" +#include "softlist.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") + { } + + required_device<lc8670_cpu_device> m_maincpu; + required_device<intelfsh8_device> m_flash; + required_device<speaker_sound_device> m_speaker; + required_region_ptr<UINT8> m_bios; + + DECLARE_PALETTE_INIT(svmu); + virtual void machine_reset(); + + 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( svmu ); + +private: + UINT8 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); +} + + +static ADDRESS_MAP_START(svmu_mem, AS_PROGRAM, 8, svmu_state) + AM_RANGE( 0x0000, 0xffff ) AM_READWRITE(prog_r, prog_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START(svmu_io_mem, AS_IO, 8, svmu_state) + AM_RANGE( LC8670_PORT1, LC8670_PORT1 ) AM_READWRITE(p1_r, p1_w) + AM_RANGE( LC8670_PORT3, LC8670_PORT3 ) AM_READ_PORT("P3") + AM_RANGE( LC8670_PORT7, LC8670_PORT7 ) AM_READ(p7_r) +ADDRESS_MAP_END + +/* 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; +} + +PALETTE_INIT_MEMBER(svmu_state, svmu) +{ + palette.set_pen_color(0, rgb_t(138, 146, 148)); + palette.set_pen_color(1, rgb_t(92, 83, 88)); +} + +static LC8670_LCD_UPDATE( 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); + } + + output_set_value("file_icon" , lcd_enabled ? BIT(vram[0xc1],6) : 0); + output_set_value("game_icon" , lcd_enabled ? BIT(vram[0xc2],4) : 0); + output_set_value("clock_icon", lcd_enabled ? BIT(vram[0xc3],2) : 0); + output_set_value("flash_icon", lcd_enabled ? BIT(vram[0xc4],0) : 0); + + return 0; +} + + +inline void vmufat_write_byte(UINT8* flash, UINT8 block, offs_t offset, UINT8 data) +{ + flash[(block * 512) + offset] = data; +} + +inline void vmufat_write_word(UINT8* flash, UINT8 block, offs_t offset, UINT16 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, svmu ) +{ + UINT32 size = image.length(); + UINT8 *flash = (UINT8*)m_flash->space().get_read_ptr(0); + + 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; i<vms_blocks - 1; i++) + vmufat_write_word(flash, 254, i<<1, i + 1); // marks blocks where the file is allocated + + vmufat_write_word(flash, 254, (vms_blocks-1)<<1, 0xfffa); // last block for this file + + vmufat_write_byte(flash, 253, 0x00, 0xcc); // file type (0x00 = no file, 0x33 = data, 0xcc = game) + vmufat_write_byte(flash, 253, 0x01, 0x00); // copy protect (0x00 = no, 0xff = yes) + vmufat_write_word(flash, 253, 0x02, 0x0000); // location of first file block + + const char *vms_filename = image.basename_noext(); + for (int i=0; i<12; i++) + { + if (i < strlen(vms_filename)) + vmufat_write_byte(flash, 253, i + 4, vms_filename[i]); // 12 bytes filename + else + vmufat_write_byte(flash, 253, i + 4, 0x20); // space padded + } + + vmufat_write_byte(flash, 253, 0x10, 0x19); // Century (BCD) + vmufat_write_byte(flash, 253, 0x11, 0x99); // Year (BCD) + vmufat_write_byte(flash, 253, 0x12, 0x01); // Month (BCD) + vmufat_write_byte(flash, 253, 0x13, 0x01); // Day (BCD) + vmufat_write_byte(flash, 253, 0x14, 0x00); // Hour (BCD) + vmufat_write_byte(flash, 253, 0x15, 0x00); // Minute (BCD) + vmufat_write_byte(flash, 253, 0x16, 0x00); // Second (BCD) + vmufat_write_byte(flash, 253, 0x17, 0x00); // Day of week (0 = Monday, 6 = Sunday) + vmufat_write_word(flash, 253, 0x18, vms_blocks); // file size (in blocks) + vmufat_write_word(flash, 253, 0x1a, 0x0001); // offset of header (in blocks) from file start + } + + return IMAGE_INIT_PASS; +} + + +static MACHINE_CONFIG_START( svmu, svmu_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", LC8670, XTAL_32_768kHz) + MCFG_CPU_PROGRAM_MAP(svmu_mem) + MCFG_CPU_IO_MAP(svmu_io_mem) + + /* specific LC8670 configurations */ + MCFG_LC8670_SET_CLOCK_SOURCES(XTAL_32_768kHz, 600000, XTAL_6MHz) // tolerance range of the RC oscillator is 600kHz to 1200kHz + MCFG_LC8670_BANKSWITCH_CB(WRITE8(svmu_state, page_w)) + MCFG_LC8670_LCD_UPDATE_CB(svmu_lcd_update) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", LCD) + MCFG_SCREEN_REFRESH_RATE(60) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) // not accurate + MCFG_SCREEN_SIZE(48 * (PIXEL_SIZE + PIXEL_DISTANCE), 32 * (PIXEL_SIZE + PIXEL_DISTANCE)) + MCFG_SCREEN_VISIBLE_AREA(0, 48*(PIXEL_SIZE + PIXEL_DISTANCE) - 1, 0, 32*(PIXEL_SIZE + PIXEL_DISTANCE) - 1) + MCFG_SCREEN_UPDATE_DEVICE("maincpu", lc8670_cpu_device, screen_update) + MCFG_SCREEN_PALETTE("palette") + + MCFG_DEFAULT_LAYOUT(layout_svmu) + MCFG_PALETTE_ADD("palette", 2) + MCFG_PALETTE_INIT_OWNER(svmu_state, svmu) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) + + /* devices */ + MCFG_ATMEL_29C010_ADD("flash") + MCFG_QUICKLOAD_ADD("quickload", svmu_state, svmu, "vms,bin", 0) + MCFG_QUICKLOAD_INTERFACE("svmu_quik") + + /* Software lists */ + MCFG_SOFTWARE_LIST_ADD("quik_list", "svmu") +MACHINE_CONFIG_END + + +/* ROM definition */ +ROM_START( svmu ) + ROM_REGION( 0x10000, "bios", 0 ) + ROM_DEFAULT_BIOS("jp1004") + // these ROMs come from the Sega Katana SDK and are scrambled, a simple way to restore it is to remove the first 4 bytes and xor the whole file for the xor key. + ROM_SYSTEM_BIOS(0, "jp1001", "VMS Japanese BIOS (v1.001)") + ROMX_LOAD("vmu1001.bin", 0x0000, 0x10000, CRC(e6339f4a) SHA1(688b2e1ff8c60bde6e8b07a2d2695cdacc07bd0c), ROM_BIOS(1)) + ROM_SYSTEM_BIOS(1, "jp1002", "VMS Japanese BIOS (v1.002)") + ROMX_LOAD("vmu1002.bin", 0x0000, 0x10000, CRC(6c020d48) SHA1(9ee7c87d7b033235e0b315a0b421e70deb547c7a), ROM_BIOS(2)) + ROM_SYSTEM_BIOS(2, "jp1004", "VMS Japanese BIOS (v1.004)") + ROMX_LOAD("vmu1004.bin", 0x0000, 0x10000, CRC(8e0f867a) SHA1(dc2fa2963138a1049a43f7f36439ad0a416ee8b4), ROM_BIOS(3)) // from Sega Katana SDK (original file: fbios.sbf, CRC: c7c77b3c, xor key: 0x37) + ROM_SYSTEM_BIOS(3, "jp1005", "VMS Japanese BIOS (v1.005)") + ROMX_LOAD("vmu1005.bin", 0x0000, 0x10000, CRC(47623324) SHA1(fca1aceff8a2f8c6826f3a865f4d5ef88dfd9ed1), ROM_BIOS(4)) + ROM_SYSTEM_BIOS(4, "dev1004", "VMS Japanese Dev BIOS (v1.004)") // automatically boot the first game found in the flash + ROMX_LOAD( "vmsdev1004.bin", 0x0000, 0x10000, CRC(395e25f2) SHA1(37dea034322b5b80b35b2de784298d32c71ba7a3), ROM_BIOS(5)) // from Sega Katana SDK (original file: qbios.sbf, CRC: eed5524c, xor key: 0x43) +ROM_END + + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1998, svmu, 0, 0, svmu , svmu , driver_device, 0, "Sega", "Visual Memory Unit", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |