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r19052 Monday 19th November, 2012 at 20:14:14 UTC by Sandro Ronco
(MESS) New system marked as GAME_NOT_WORKING
------------------------------------
Sega Visual Memory Unit [Sandro Ronco]
[src/mess]mess.lst mess.mak
[src/mess/drivers]svmu.c*

trunk/src/mess/mess.lst
r19051r19052
144144dcdev    // 1998 Sega HKT-0120 Sega Dreamcast Development Box
145145dcprt    // 1998 Sega Katana Set 5 Prototype
146146
147svmu    // 1998 Sega Visual Memory Unit
148
147149// Sony
148150psj      // 1994 Sony PlayStation (Japan)
149151psu      // 1995 Sony PlayStation (USA)
trunk/src/mess/drivers/svmu.c
r0r19052
1/***************************************************************************
2
3        Sega Visual Memory Unit
4
5        driver by Sandro Ronco
6
7        TODO:
8        - add more bios versions
9        - layout for LCD symbols
10        - serial
11
12****************************************************************************/
13
14#include "emu.h"
15#include "cpu/lc8670/lc8670.h"
16#include "imagedev/snapquik.h"
17#include "machine/intelfsh.h"
18#include "sound/speaker.h"
19#include "rendlay.h"
20
21#define      PIXEL_SIZE         7
22#define      PIXEL_DISTANCE      1
23
24class svmu_state : public driver_device
25{
26public:
27   svmu_state(const machine_config &mconfig, device_type type, const char *tag)
28      : driver_device(mconfig, type, tag),
29        m_maincpu(*this, "maincpu"),
30        m_flash(*this, "flash"),
31        m_speaker(*this, SPEAKER_TAG)
32      { }
33
34   required_device<lc8670_cpu_device> m_maincpu;
35   required_device<intelfsh8_device> m_flash;
36   required_device<device_t> m_speaker;
37
38   virtual void palette_init();
39   virtual void machine_reset();
40
41   DECLARE_WRITE8_MEMBER(page_w);
42   DECLARE_READ8_MEMBER(flash_r);
43   DECLARE_WRITE8_MEMBER(flash_w);
44   DECLARE_READ8_MEMBER(prog_r);
45   DECLARE_WRITE8_MEMBER(prog_w);
46   DECLARE_READ8_MEMBER(p1_r);
47   DECLARE_WRITE8_MEMBER(p1_w);
48   DECLARE_READ8_MEMBER(p7_r);
49
50private:
51   UINT8 *      m_bios;
52   UINT8      m_page;
53};
54
55
56WRITE8_MEMBER(svmu_state::page_w)
57{
58   m_page = data & 0x03;
59}
60
61READ8_MEMBER(svmu_state::flash_r)
62{
63   return m_flash->read(offset);
64}
65
66WRITE8_MEMBER(svmu_state::flash_w)
67{
68   m_flash->write(offset, data);
69}
70
71READ8_MEMBER(svmu_state::prog_r)
72{
73   if (m_page == 1)
74      return m_flash->read(offset);
75   else if (m_page == 2)
76      return m_flash->read(0x10000 + offset);
77   else
78      return m_bios[offset];
79}
80
81WRITE8_MEMBER(svmu_state::prog_w)
82{
83   if (m_page == 1)
84      m_flash->write(offset, data);
85   else if (m_page == 2)
86      m_flash->write(0x10000 + offset, data);
87}
88
89/*
90    Port 1
91
92    x--- ----   PWM output
93    -x-- ----   BUZ
94    --x- ----   SCK1
95    ---x ----   SB1
96    ---- x---   SO1
97    ---- -x--   SCK0
98    ---- --x-   SB0
99    ---- ---x   SO0
100
101*/
102
103READ8_MEMBER(svmu_state::p1_r)
104{
105   return 0;
106}
107
108WRITE8_MEMBER(svmu_state::p1_w)
109{
110   speaker_level_w(m_speaker, BIT(data, 7));
111}
112
113
114/*
115    Port 7
116
117    ---- x---   ID1
118    ---- -x--   ID0
119    ---- --x-   battery low voltage
120    ---- ---x   5V detection
121*/
122
123READ8_MEMBER(svmu_state::p7_r)
124{
125   return (ioport("BATTERY")->read()<<1);
126}
127
128
129static ADDRESS_MAP_START(svmu_mem, AS_PROGRAM, 8, svmu_state)
130   AM_RANGE( 0x0000, 0xffff ) AM_READWRITE(prog_r, prog_w)
131ADDRESS_MAP_END
132
133static ADDRESS_MAP_START(svmu_io_mem, AS_IO, 8, svmu_state)
134   AM_RANGE( LC8670_PORT1, LC8670_PORT1 ) AM_READWRITE(p1_r, p1_w)
135   AM_RANGE( LC8670_PORT3, LC8670_PORT3 ) AM_READ_PORT("P3")
136   AM_RANGE( LC8670_PORT7, LC8670_PORT7 ) AM_READ(p7_r)
137ADDRESS_MAP_END
138
139/* Input ports */
140static INPUT_PORTS_START( svmu )
141   PORT_START( "P3" )
142   PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("UP")      PORT_CODE( KEYCODE_UP )
143   PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("DOWN")   PORT_CODE( KEYCODE_DOWN )
144   PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("LEFT")   PORT_CODE( KEYCODE_LEFT )
145   PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("RIGHT")   PORT_CODE( KEYCODE_RIGHT )
146   PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("A")      PORT_CODE( KEYCODE_A )
147   PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("B")      PORT_CODE( KEYCODE_B )
148   PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("MODE")   PORT_CODE( KEYCODE_M )
149   PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD )   PORT_NAME("SLEEP")   PORT_CODE( KEYCODE_S )
150   PORT_START("BATTERY")
151   PORT_CONFNAME( 0x01, 0x01, "Battery" )
152   PORT_CONFSETTING( 0x01, "Good" )
153   PORT_CONFSETTING( 0x00, "Poor" )
154INPUT_PORTS_END
155
156void svmu_state::machine_reset()
157{
158   m_bios = (UINT8*)(*memregion("bios"));
159   m_page = 0;
160}
161
162void svmu_state::palette_init()
163{
164   palette_set_color(machine(), 0, MAKE_RGB(138, 146, 148));
165   palette_set_color(machine(), 1, MAKE_RGB(92, 83, 88));
166}
167
168static LC8670_LCD_UPDATE( svmu_lcd_update )
169{
170   if (lcd_enabled)
171   {
172      for (int y=0; y<32; y++)
173         for (int x=0; x<6; x++)
174         {
175            int gfx = vram[y*6 + x];
176
177            for (int b=0; b<8; b++)
178               bitmap.plot_box((x*8 + b) * (PIXEL_SIZE + PIXEL_DISTANCE), y * (PIXEL_SIZE + PIXEL_DISTANCE), PIXEL_SIZE, PIXEL_SIZE, BIT(gfx,7-b));
179         }
180
181      popmessage("%c %c %c %c\n", BIT(vram[0xc1],6) ? 'F' : ' ',      // File icon
182                           BIT(vram[0xc2],4) ? 'G' : ' ',      // Game icon
183                           BIT(vram[0xc3],2) ? 'C' : ' ',      // Clock icon
184                           BIT(vram[0xc4],0) ? 'A' : ' ');      // Flash icon
185   }
186   else
187   {
188      bitmap.fill(0, cliprect);
189   }
190
191   output_set_value("file_icon" , lcd_enabled ? BIT(vram[0xc1],6) : 0);
192   output_set_value("game_icon" , lcd_enabled ? BIT(vram[0xc2],4) : 0);
193   output_set_value("clock_icon", lcd_enabled ? BIT(vram[0xc3],2) : 0);
194   output_set_value("flash_icon", lcd_enabled ? BIT(vram[0xc4],0) : 0);
195
196   return 0;
197}
198
199
200inline void vmufat_write_byte(UINT8* flash, UINT8 block, offs_t offset, UINT8 data)
201{
202   flash[(block * 512) + offset] = data;
203}
204
205inline void vmufat_write_word(UINT8* flash, UINT8 block, offs_t offset, UINT16 data)
206{
207   // 16-bit data are stored in little endian
208   flash[(block * 512) + offset + 0] = data & 0xff;
209   flash[(block * 512) + offset + 1] = (data>>8) & 0xff;
210}
211
212static QUICKLOAD_LOAD( svmu )
213{
214   running_machine &machine = image.device().machine();
215   svmu_state *state = machine.driver_data<svmu_state>();
216   UINT32 size = image.length();
217   UINT8 *flash = (UINT8*)state->m_flash->space().get_read_ptr(0);
218
219   image.fread(flash, size);
220
221   // verify if image is already a valid VMUFAT file system
222   bool valid_vmufat = true;
223   if (size == 0x20000)
224   {
225      for (int i=0; i<0x10; i++)
226         if (flash[255 * 512 + i] != 0x55)
227         {
228            valid_vmufat = false;
229            break;
230         }
231   }
232   else
233   {
234      valid_vmufat = false;
235   }
236
237   if (!valid_vmufat)
238   {
239      // more info about the VMUFAT here: http://mc.pp.se/dc/vms/flashmem.html
240
241      //-------------------------------- Formatting --------------------------------
242      memset(flash + 241*512, 0, 15*512);               // clears the last 15 blocks that contain file system information
243
244      for (int i=0; i<0x10; i++)
245         vmufat_write_byte(flash, 255, i, 0x55);         // first 16 bytes should be 0x55 to indicate a properly formatted card
246
247      vmufat_write_byte(flash, 255, 0x10, 0x00);         // custom VMS colour (1 = use custom colours, 0 = standard colour)
248      vmufat_write_byte(flash, 255, 0x11, 0x00);         // VMS colour blue component
249      vmufat_write_byte(flash, 255, 0x12, 0x00);         // VMS colour green component
250      vmufat_write_byte(flash, 255, 0x13, 0x00);         // VMS colour red component
251      vmufat_write_byte(flash, 255, 0x14, 0x00);         // VMS colour alpha component
252      vmufat_write_byte(flash, 255, 0x30, 0x19);         // Century (BCD)
253      vmufat_write_byte(flash, 255, 0x31, 0x99);         // Year (BCD)
254      vmufat_write_byte(flash, 255, 0x32, 0x01);         // Month (BCD)
255      vmufat_write_byte(flash, 255, 0x33, 0x01);         // Day (BCD)
256      vmufat_write_byte(flash, 255, 0x34, 0x00);         // Hour (BCD)
257      vmufat_write_byte(flash, 255, 0x35, 0x00);         // Minute (BCD)
258      vmufat_write_byte(flash, 255, 0x36, 0x00);         // Second (BCD)
259      vmufat_write_byte(flash, 255, 0x37, 0x00);         // Day of week (0 = Monday, 6 = Sunday)
260      vmufat_write_word(flash, 255, 0x44, 0x00ff);      // location of Root
261      vmufat_write_word(flash, 255, 0x46, 0x00fe);      // location of FAT (254)
262      vmufat_write_word(flash, 255, 0x48, 0x0001);      // size of FAT in blocks (1)
263      vmufat_write_word(flash, 255, 0x4a, 0x00fd);      // location of Directory (253)
264      vmufat_write_word(flash, 255, 0x4c, 0x000d);      // size of Directory in blocks (13)
265      vmufat_write_word(flash, 255, 0x4e, 0x0000);      // icon shape for this VMS (0-123)
266      vmufat_write_word(flash, 255, 0x50, 0x00c8);      // number of user blocks (200)
267
268      for (int i=0; i<256; i++)
269         vmufat_write_word(flash, 254, i<<1, 0xfffc);   // marks all blocks as unallocated
270
271      for (int i=253; i>241; --i)
272         vmufat_write_word(flash, 254, i<<1, i - 1);      // marsk all Directory blocks as allocate
273
274      vmufat_write_word(flash, 254, 0x1e2, 0xfffa);      // marks last Directory block
275      vmufat_write_word(flash, 254, 0x1fc, 0xfffa);      // marks FAT block as allocated
276      vmufat_write_word(flash, 254, 0x1fe, 0xfffa);      // marks Root block as allocated
277
278      //-------------------------------- Create the vms file --------------------------------
279      int vms_blocks = (size / 512) + (size & 0x1ff ? 1 : 0); // number of blocks required for store the vms file
280
281      for (int i=0; i<vms_blocks - 1; i++)
282         vmufat_write_word(flash, 254, i<<1, i + 1);      // marks blocks where the file is allocated
283
284      vmufat_write_word(flash, 254, (vms_blocks-1)<<1, 0xfffa);   // last block for this file
285
286      vmufat_write_byte(flash, 253, 0x00, 0xcc);         // file type (0x00 = no file, 0x33 = data, 0xcc = game)
287      vmufat_write_byte(flash, 253, 0x01, 0x00);         // copy protect (0x00 = no, 0xff = yes)
288      vmufat_write_word(flash, 253, 0x02, 0x0000);      // location of first file block
289
290      const char *vms_filename = image.basename_noext();
291      for (int i=0; i<12; i++)
292      {
293         if (i < strlen(vms_filename))
294            vmufat_write_byte(flash, 253, i + 4, vms_filename[i]);   // 12 bytes filename
295         else
296            vmufat_write_byte(flash, 253, i + 4, 0x20);            // space padded
297      }
298
299      vmufat_write_byte(flash, 253, 0x10, 0x19);         // Century (BCD)
300      vmufat_write_byte(flash, 253, 0x11, 0x99);         // Year (BCD)
301      vmufat_write_byte(flash, 253, 0x12, 0x01);         // Month (BCD)
302      vmufat_write_byte(flash, 253, 0x13, 0x01);         // Day (BCD)
303      vmufat_write_byte(flash, 253, 0x14, 0x00);         // Hour (BCD)
304      vmufat_write_byte(flash, 253, 0x15, 0x00);         // Minute (BCD)
305      vmufat_write_byte(flash, 253, 0x16, 0x00);         // Second (BCD)
306      vmufat_write_byte(flash, 253, 0x17, 0x00);         // Day of week (0 = Monday, 6 = Sunday)
307      vmufat_write_word(flash, 253, 0x18, vms_blocks);   // file size (in blocks)
308      vmufat_write_word(flash, 253, 0x1a, 0x0001);      // offset of header (in blocks) from file start
309   }
310
311   return IMAGE_INIT_PASS;
312}
313
314
315static MACHINE_CONFIG_START( svmu, svmu_state )
316   /* basic machine hardware */
317   MCFG_CPU_ADD("maincpu", LC8670, XTAL_32_768kHz)
318   MCFG_CPU_PROGRAM_MAP(svmu_mem)
319   MCFG_CPU_IO_MAP(svmu_io_mem)
320
321   /* specific LC8670 configurations */
322   MCFG_LC8670_SET_CLOCK_SOURCES(XTAL_32_768kHz, 600000, XTAL_6MHz)   // tolerance range of the RC oscillator is 600kHz to 1200kHz
323   MCFG_LC8670_BANKSWITCH_CB(WRITE8(svmu_state, page_w))
324   MCFG_LC8670_LCD_UPDATE_CB(svmu_lcd_update)
325
326   /* video hardware */
327   MCFG_SCREEN_ADD("screen", LCD)
328   MCFG_SCREEN_REFRESH_RATE(60)
329   MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) // not accurate
330   MCFG_SCREEN_SIZE(48 * (PIXEL_SIZE + PIXEL_DISTANCE), 32 * (PIXEL_SIZE + PIXEL_DISTANCE))
331   MCFG_SCREEN_VISIBLE_AREA(0, 48*(PIXEL_SIZE + PIXEL_DISTANCE) - 1, 0, 32*(PIXEL_SIZE + PIXEL_DISTANCE) - 1)
332   MCFG_SCREEN_UPDATE_DEVICE("maincpu", lc8670_cpu_device, screen_update)
333   MCFG_DEFAULT_LAYOUT(layout_lcd)
334   MCFG_PALETTE_LENGTH(2)
335
336   /* sound hardware */
337   MCFG_SPEAKER_STANDARD_MONO("mono")
338   MCFG_SOUND_ADD(SPEAKER_TAG, SPEAKER_SOUND, 0)
339   MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
340
341   /* devices */
342   MCFG_ATMEL_29C010_ADD("flash")
343   MCFG_QUICKLOAD_ADD("quickload", svmu, "vms,bin", 0)
344MACHINE_CONFIG_END
345
346
347/* ROM definition */
348ROM_START( svmu )
349   ROM_REGION( 0x10000, "bios", 0 )
350    // 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.
351   ROM_SYSTEM_BIOS(0, "jp1004", "Japan v1.004")
352   ROMX_LOAD( "fbios.bin",  0x0000, 0x10000, CRC(8e0f867a) SHA1(dc2fa2963138a1049a43f7f36439ad0a416ee8b4), ROM_BIOS(1))   // from Sega Katana SDK (original file: fbios.sbf, CRC: c7c77b3c, xor key: 0x37)
353   ROM_SYSTEM_BIOS(1, "jp1004q", "Japan v1.004 (quick start)")   // automatically boot the first game found in the flash
354   ROMX_LOAD( "qbios.bin",  0x0000, 0x10000, CRC(395e25f2) SHA1(37dea034322b5b80b35b2de784298d32c71ba7a3), ROM_BIOS(2))   // from Sega Katana SDK (original file: qbios.sbf, CRC: eed5524c, xor key: 0x43)
355ROM_END
356
357
358/* Driver */
359
360/*  YEAR  NAME  PARENT  COMPAT   MACHINE    INPUT   INIT    COMPANY   FULLNAME     FLAGS */
361COMP( 1998, svmu,   0,   0,   svmu ,   svmu , driver_device,   0, "Sega",   "Visual Memory Unit",   GAME_NOT_WORKING | GAME_NO_SOUND)
trunk/src/mess/mess.mak
r19051r19052
120120CPUS += PPS4
121121CPUS += UPD7725
122122CPUS += HD61700
123CPUS += LC8670
123124
124125#-------------------------------------------------
125126# specify available sound cores; some of these are
r19051r19052
15961597   $(MESS_MACHINE)/dccons.o   \
15971598   $(MESS_MACHINE)/sms.o   \
15981599   $(MESS_DRIVERS)/sms.o   \
1600   $(MESS_DRIVERS)/svmu.o      \
15991601
16001602$(MESSOBJ)/sgi.a:            \
16011603   $(MESS_MACHINE)/sgi.o      \

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