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r18225 Sunday 30th September, 2012 at 23:08:53 UTC by Angelo Salese
DMA hooked up
[src/emu/machine]seibu_cop.c seibu_cop.h

trunk/src/emu/machine/seibu_cop.c
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2020
2121
2222static ADDRESS_MAP_START( seibu_cop_io, AS_0, 16, seibu_cop_device )
23   AM_RANGE(0x0428, 0x0429) AM_WRITE(dma_fill_val_lo_w)
24   AM_RANGE(0x042a, 0x042b) AM_WRITE(dma_fill_val_hi_w)
23   AM_RANGE(0x0428, 0x0429) AM_WRITE(fill_val_lo_w)
24   AM_RANGE(0x042a, 0x042b) AM_WRITE(fill_val_hi_w)
2525
2626   AM_RANGE(0x045a, 0x045b) AM_WRITE(pal_brightness_val_w)
2727   AM_RANGE(0x045c, 0x045d) AM_WRITE(pal_brightness_mode_w)
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9191   // or initialize to defaults if none provided
9292   else
9393   {
94      memset(&m_in_mreq_cb, 0, sizeof(m_in_mreq_cb));
95      memset(&m_out_mreq_cb, 0, sizeof(m_out_mreq_cb));
94      memset(&m_in_byte_cb,   0, sizeof(m_in_byte_cb));
95      memset(&m_in_word_cb,   0, sizeof(m_in_word_cb));
96      memset(&m_in_dword_cb,  0, sizeof(m_in_dword_cb));
97      memset(&m_out_byte_cb,  0, sizeof(m_out_byte_cb));
98      memset(&m_out_word_cb,  0, sizeof(m_out_word_cb));
99      memset(&m_out_dword_cb, 0, sizeof(m_out_dword_cb));
96100   }
97101}
98102
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112116
113117void seibu_cop_device::device_start()
114118{
119   // resolve callbacks
120   m_in_byte_func.resolve(m_in_byte_cb, *this);
121   m_in_word_func.resolve(m_in_word_cb, *this);
122   m_in_word_func.resolve(m_in_dword_cb, *this);
123   m_out_byte_func.resolve(m_out_byte_cb, *this);
124   m_out_word_func.resolve(m_out_word_cb, *this);
125   m_out_dword_func.resolve(m_out_dword_cb, *this);
115126
116127}
117128
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138149//  READ/WRITE HANDLERS
139150//**************************************************************************
140151
141WRITE16_MEMBER(seibu_cop_device::dma_fill_val_lo_w)
152WRITE16_MEMBER(seibu_cop_device::fill_val_lo_w)
142153{
143   COMBINE_DATA(&m_dma_fill_val_lo);
144   m_dma_fill_val = (m_dma_fill_val_lo) | (m_dma_fill_val_hi << 16);
154   COMBINE_DATA(&m_fill_val_lo);
155   m_fill_val = (m_fill_val_lo) | (m_fill_val_hi << 16);
145156}
146157
147WRITE16_MEMBER(seibu_cop_device::dma_fill_val_hi_w)
158WRITE16_MEMBER(seibu_cop_device::fill_val_hi_w)
148159{
149   COMBINE_DATA(&m_dma_fill_val_hi);
150   m_dma_fill_val = (m_dma_fill_val_lo) | (m_dma_fill_val_hi << 16);
160   COMBINE_DATA(&m_fill_val_hi);
161   m_fill_val = (m_fill_val_lo) | (m_fill_val_hi << 16);
151162}
152163
153164WRITE16_MEMBER(seibu_cop_device::pal_brightness_val_w)
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204215   m_dma_trigger = m_dma_exec_param & 7;
205216}
206217
218//**************************************************************************
219//  READ/WRITE HANDLERS (device to CPU / CPU to device)
220//**************************************************************************
221
207222READ16_MEMBER( seibu_cop_device::read )
208223{
209224   return read_word(offset + (0x400/2));
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213228{
214229   write_word(offset + (0x400/2),data);
215230}
231
232void seibu_cop_device::normal_dma_transfer(void)
233{
234   UINT32 src,dst,size,i;
235
236   src = (m_dma_src[m_dma_trigger] << 6);
237   dst = (m_dma_dst[m_dma_trigger] << 6);
238   size = ((m_dma_size[m_dma_trigger] << 5) - (m_dma_dst[m_dma_trigger] << 6) + 0x20)/2;
239
240   for(i = 0;i < size;i++)
241   {
242      m_out_word_func(dst, m_in_word_func(src));
243      src+=2;
244      dst+=2;
245   }
246}
247
248/* RE from Seibu Cup Soccer bootleg */
249const UINT8 seibu_cop_device::fade_table(int v)
250{
251    int low  = v & 0x001f;
252    int high = v & 0x03e0;
253
254    return (low * (high | (high >> 5)) + 0x210) >> 10;
255}
256
257void seibu_cop_device::palette_dma_transfer(void)
258{
259   UINT32 src,dst,size,i;
260
261   /*
262             Apparently all of those are just different DMA channels, brightness effects are done through a RAM table and the pal_brightness_val / mode
263             0x80 is used by Legionnaire
264             0x81 is used by SD Gundam and Godzilla
265             0x82 is used by Zero Team and X Se Dae
266             0x86 is used by Seibu Cup Soccer
267             0x87 is used by Denjin Makai
268
269            TODO:
270             - Denjin Makai mode 4 is totally guessworked.
271             - SD Gundam doesn't fade colors correctly, it should have the text layer / sprites with normal gradient and the rest dimmed in most cases,
272               presumably bad RAM table or bad algorithm
273    */
274
275   src = (m_dma_src[m_dma_trigger] << 6);
276   dst = (m_dma_dst[m_dma_trigger] << 6);
277   size = ((m_dma_size[m_dma_trigger] << 5) - (m_dma_dst[m_dma_trigger] << 6) + 0x20)/2;
278
279   //printf("SRC: %08x %08x DST:%08x SIZE:%08x TRIGGER: %08x %02x %02x\n",cop_dma_src[cop_dma_trigger] << 6,cop_dma_fade_table * 0x400,cop_dma_dst[cop_dma_trigger] << 6,cop_dma_size[cop_dma_trigger] << 5,cop_dma_trigger,pal_brightness_val,pal_brightness_mode);
280
281   for(i = 0;i < size;i++)
282   {
283      UINT16 pal_val;
284      int r,g,b;
285      int rt,gt,bt;
286
287      if(m_pal_brightness_mode == 5)
288      {
289         bt = ((m_in_word_func(src + (m_dma_pal_fade_table * 0x400))) & 0x7c00) >> 5;
290         bt = fade_table(bt|(m_pal_brightness_val ^ 0));
291         b = ((m_in_word_func(src)) & 0x7c00) >> 5;
292         b = fade_table(b|(m_pal_brightness_val ^ 0x1f));
293         pal_val = ((b + bt) & 0x1f) << 10;
294         gt = ((m_in_word_func(src + (m_dma_pal_fade_table * 0x400))) & 0x03e0);
295         gt = fade_table(gt|(m_pal_brightness_val ^ 0));
296         g = ((m_in_word_func(src)) & 0x03e0);
297         g = fade_table(g|(m_pal_brightness_val ^ 0x1f));
298         pal_val |= ((g + gt) & 0x1f) << 5;
299         rt = ((m_in_word_func(src + (m_dma_pal_fade_table * 0x400))) & 0x001f) << 5;
300         rt = fade_table(rt|(m_pal_brightness_val ^ 0));
301         r = ((m_in_word_func(src)) & 0x001f) << 5;
302         r = fade_table(r|(m_pal_brightness_val ^ 0x1f));
303         pal_val |= ((r + rt) & 0x1f);
304      }
305      else if(m_pal_brightness_mode == 4) //Denjin Makai
306      {
307         bt =(m_in_word_func(src + (m_dma_pal_fade_table * 0x400)) & 0x7c00) >> 10;
308         b = (m_in_word_func(src) & 0x7c00) >> 10;
309         gt =(m_in_word_func(src + (m_dma_pal_fade_table * 0x400)) & 0x03e0) >> 5;
310         g = (m_in_word_func(src) & 0x03e0) >> 5;
311         rt =(m_in_word_func(src + (m_dma_pal_fade_table * 0x400)) & 0x001f) >> 0;
312         r = (m_in_word_func(src) & 0x001f) >> 0;
313
314         if(m_pal_brightness_val == 0x10)
315            pal_val = bt << 10 | gt << 5 | rt << 0;
316         else if(m_pal_brightness_val == 0xff) // TODO: might be the back plane or it still doesn't do any mod, needs PCB tests
317            pal_val = 0;
318         else
319         {
320            bt = fade_table(bt<<5|((m_pal_brightness_val*2) ^ 0));
321            b =  fade_table(b<<5|((m_pal_brightness_val*2) ^ 0x1f));
322            pal_val = ((b + bt) & 0x1f) << 10;
323            gt = fade_table(gt<<5|((m_pal_brightness_val*2) ^ 0));
324            g =  fade_table(g<<5|((m_pal_brightness_val*2) ^ 0x1f));
325            pal_val |= ((g + gt) & 0x1f) << 5;
326            rt = fade_table(rt<<5|((m_pal_brightness_val*2) ^ 0));
327            r =  fade_table(r<<5|((m_pal_brightness_val*2) ^ 0x1f));
328            pal_val |= ((r + rt) & 0x1f);
329         }
330      }
331      else
332      {
333         printf("Seibu COP: palette DMA used with mode %02x!\n",m_pal_brightness_mode);
334         pal_val = m_in_word_func(src);
335      }
336
337      m_out_word_func(dst, pal_val);
338      src+=2;
339      dst+=2;
340   }
341}
342
343void seibu_cop_device::fill_word_transfer(void)
344{
345   UINT32 length, address;
346   int i;
347
348   //if(cop_dma_dst[cop_dma_trigger] != 0x0000) // Invalid?
349   //  return;
350
351   address = (m_dma_src[m_dma_trigger] << 6);
352   length = ((m_dma_size[m_dma_trigger]+1) << 4);
353
354   for (i=address;i<address+length;i+=4)
355   {
356      m_out_dword_func(i, m_fill_val);
357   }
358}
359
360void seibu_cop_device::fill_dword_transfer(void)
361{
362   UINT32 length, address;
363   int i;
364   if(m_dma_dst[m_dma_trigger] != 0x0000) // Invalid? TODO: log & check this
365      return;
366
367   address = (m_dma_src[m_dma_trigger] << 6);
368   length = (m_dma_size[m_dma_trigger]+1) << 5;
369
370   //printf("%08x %08x\n",address,length);
371
372   for (i=address;i<address+length;i+=4)
373   {
374      m_out_dword_func(i, m_fill_val);
375   }
376}
377
378WRITE16_MEMBER( seibu_cop_device::dma_write_trigger_w )
379{
380   switch(m_dma_exec_param & 0x1f8)
381   {
382      case 0x008: normal_dma_transfer(); break;
383      case 0x010: break; // private buffer copy, TODO
384      case 0x080:   palette_dma_transfer(); break;
385      case 0x110: fill_word_transfer(); break; // Godzilla uses this
386      case 0x118: fill_dword_transfer(); break;
387      default:
388         logerror("Seibu COP: used unemulated DMA type %04x\n",m_dma_exec_param);
389   }
390}
trunk/src/emu/machine/seibu_cop.h
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2525struct seibu_cop_interface
2626{
2727   // memory accessors
28   devcb_read8         m_in_mreq_cb;
29   devcb_write8      m_out_mreq_cb;
28   devcb_read16      m_in_byte_cb;
29   devcb_read16      m_in_word_cb;
30   devcb_read16      m_in_dword_cb;
31   devcb_write16      m_out_byte_cb;
32   devcb_write16      m_out_word_cb;
33   devcb_write16      m_out_dword_cb;
3034};
3135
3236
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4751   // I/O operations
4852   DECLARE_WRITE16_MEMBER( write );
4953   DECLARE_READ16_MEMBER( read );
50   DECLARE_WRITE16_MEMBER(dma_fill_val_lo_w);
51   DECLARE_WRITE16_MEMBER(dma_fill_val_hi_w);
54   DECLARE_WRITE16_MEMBER( dma_write_trigger_w );
55   DECLARE_WRITE16_MEMBER(fill_val_lo_w);
56   DECLARE_WRITE16_MEMBER(fill_val_hi_w);
5257   DECLARE_WRITE16_MEMBER(pal_brightness_val_w);
5358   DECLARE_WRITE16_MEMBER(pal_brightness_mode_w);
5459   DECLARE_WRITE16_MEMBER(dma_unk_param_w);
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6772   virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
6873
6974private:
70   devcb_resolved_read8      m_in_mreq_func;
71   devcb_resolved_write8      m_out_mreq_func;
75   devcb_resolved_read16      m_in_byte_func;
76   devcb_resolved_read16      m_in_word_func;
77   devcb_resolved_read16      m_in_dword_func;
78   devcb_resolved_write16      m_out_byte_func;
79   devcb_resolved_write16      m_out_word_func;
80   devcb_resolved_write16      m_out_dword_func;
7281   inline UINT16 read_word(offs_t address);
7382   inline void write_word(offs_t address, UINT16 data);
7483
7584   UINT16 m_dma_unk_param, m_dma_pal_fade_table, m_dma_src[8], m_dma_dst[8], m_dma_size[8], m_dma_exec_param;
7685   UINT8 m_dma_trigger;
77   UINT16 m_dma_fill_val_lo,m_dma_fill_val_hi;
78   UINT32 m_dma_fill_val;
86   UINT16 m_fill_val_lo,m_fill_val_hi;
87   UINT32 m_fill_val;
7988   UINT16 m_pal_brightness_val, m_pal_brightness_mode;
8089
8190   const address_space_config      m_space_config;
91
92   const UINT8 fade_table(int v);
93   void normal_dma_transfer(void);
94   void palette_dma_transfer(void);
95   void fill_word_transfer(void);
96   void fill_dword_transfer(void);
8297};
8398
8499

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