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-rw-r--r--src/mame/drivers/svmu.c358
1 files changed, 358 insertions, 0 deletions
diff --git a/src/mame/drivers/svmu.c b/src/mame/drivers/svmu.c
new file mode 100644
index 00000000000..1e077c8211f
--- /dev/null
+++ b/src/mame/drivers/svmu.c
@@ -0,0 +1,358 @@
+// 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 "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)