Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-06-05 20:33:45 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity
de513a0f98
mame/src/mess/drivers/svmu.c
Miodrag Milanovic de513a0f98 reverting, sorry for this vconv needs to be updated (nw)
2014-03-31 10:23:22 +00:00

359 lines
12 KiB
C
Raw Blame History

// 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")
{ }
required_device<lc8670_cpu_device> m_maincpu;
required_device<intelfsh8_device> m_flash;
required_device<speaker_sound_device> m_speaker;
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_bios;
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_bios = (UINT8*)(*memregion("bios"));
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", GAME_NOT_WORKING | GAME_NO_SOUND)
Reference in New Issue View Git Blame Copy Permalink