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r32219 Friday 19th September, 2014 at 20:52:03 UTC by O. Galibert
special functions hookup.  sqrt is probably newton (nw)
[src/mame/drivers]r2dx_v33.c

trunk/src/mame/drivers/r2dx_v33.c
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3232   r2dx_v33_state(const machine_config &mconfig, device_type type, const char *tag)
3333      : raiden2_state(mconfig, type, tag),
3434      m_eeprom(*this, "eeprom"),
35      m_math(*this, "math"),
3536      m_r2dxbank(0),
3637      m_r2dxgameselect(0)
3738   { }
3839
3940   optional_device<eeprom_serial_93cxx_device> m_eeprom;
41   required_memory_region m_math;
4042
4143   DECLARE_WRITE16_MEMBER(r2dx_angle_w);
42
43   DECLARE_WRITE16_MEMBER(r2dx_unk1_w);
44   DECLARE_WRITE16_MEMBER(r2dx_unk2_w);
4544   DECLARE_WRITE16_MEMBER(r2dx_dx_w);
4645   DECLARE_WRITE16_MEMBER(r2dx_dy_w);
47
48   DECLARE_READ16_MEMBER(rdx_angle_r);
49   DECLARE_READ16_MEMBER(rdx_dist_r);
50
46   DECLARE_WRITE16_MEMBER(r2dx_sdistl_w);
47   DECLARE_WRITE16_MEMBER(r2dx_sdisth_w);
48   DECLARE_READ16_MEMBER(r2dx_angle_r);
49   DECLARE_READ16_MEMBER(r2dx_dist_r);
5150   DECLARE_READ16_MEMBER(r2dx_sin_r);
5251   DECLARE_READ16_MEMBER(r2dx_cos_r);
5352
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7170   DECLARE_DRIVER_INIT(nzerotea);
7271   DECLARE_DRIVER_INIT(zerotm2k);
7372
74   DECLARE_READ16_MEMBER(rdx_v33_unknown2_r);
75
7673   void r2dx_setbanking(void);
7774
7875   DECLARE_MACHINE_RESET(r2dx_v33);
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8279   int m_r2dxgameselect;
8380   INT16 m_r2dx_angle;
8481
82   UINT16 r2dx_i_dx, r2dx_i_dy, r2dx_i_angle;
83   UINT32 r2dx_i_sdist;
84
8585   UINT32 screen_update_rdx_v33(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
8686   INTERRUPT_GEN_MEMBER(rdx_v33_interrupt);
8787   void draw_sprites(bitmap_ind16 &bitmap,const rectangle &cliprect,int pri);
r32218r32219
232232
233233}
234234
235//Olivier Galibert: ok, write angle at 428, get sin/cos results at 434/436
236//Olivier Galibert: 16-bits signed
237//Olivier Galibert: write dx/dy at 424/426, get dist and angle at 432/430
238
239// Angle protection 1:
240// writes angle
241235WRITE16_MEMBER(r2dx_v33_state::r2dx_angle_w)
242236{
243   m_r2dx_angle = data;
237   COMBINE_DATA(&r2dx_i_angle);
244238}
245239
246// reads sin and cos
247READ16_MEMBER(r2dx_v33_state::r2dx_sin_r)
240WRITE16_MEMBER(r2dx_v33_state::r2dx_dx_w)
248241{
249   double angle = m_r2dx_angle * M_PI / 128;
250   return int(4096*sin(angle));
242   COMBINE_DATA(&r2dx_i_dx);
251243}
252244
253READ16_MEMBER(r2dx_v33_state::r2dx_cos_r)
245WRITE16_MEMBER(r2dx_v33_state::r2dx_dy_w)
254246{
255   double angle = m_r2dx_angle * M_PI / 128;
256   return int(4096*cos(angle));
247   COMBINE_DATA(&r2dx_i_dy);
257248}
258249
259// Angle protection 2:
260// write 2 co-ordinates?
261WRITE16_MEMBER(r2dx_v33_state::r2dx_dx_w)
250READ16_MEMBER(r2dx_v33_state::r2dx_angle_r)
262251{
263
252   return m_math->base()[((r2dx_i_dy & 0xff) << 8) | (r2dx_i_dx & 0xff)];
264253}
265254
266WRITE16_MEMBER(r2dx_v33_state::r2dx_dy_w)
255READ16_MEMBER(r2dx_v33_state::r2dx_dist_r)
267256{
268
257   return sqrt(double(r2dx_i_sdist));
269258}
270259
271WRITE16_MEMBER(r2dx_v33_state::r2dx_unk1_w)
260READ16_MEMBER(r2dx_v33_state::r2dx_sin_r)
272261{
273
262   int off = 65536 + (r2dx_i_angle & 0xff)*4;
263   return (m_math->base()[off+0]) | (m_math->base()[off+1] << 8);
274264}
275265
276WRITE16_MEMBER(r2dx_v33_state::r2dx_unk2_w)
266READ16_MEMBER(r2dx_v33_state::r2dx_cos_r)
277267{
278
268   int off = 65536 + (r2dx_i_angle & 0xff)*4;
269   return (m_math->base()[off+2]) | (m_math->base()[off+3] << 8);
279270}
280271
281// reads angle and distance
282READ16_MEMBER(r2dx_v33_state::rdx_angle_r)
272WRITE16_MEMBER(r2dx_v33_state::r2dx_sdistl_w)
283273{
284   return 0x0000;
274   r2dx_i_sdist = (r2dx_i_sdist & (0xffff0000 | UINT16(~mem_mask))) | (data & mem_mask);
285275}
286276
287READ16_MEMBER(r2dx_v33_state::rdx_dist_r)
277WRITE16_MEMBER(r2dx_v33_state::r2dx_sdisth_w)
288278{
289   return 0x0000;
279   r2dx_i_sdist = (r2dx_i_sdist & (0x0000ffff | (UINT16(~mem_mask)) << 16)) | ((data & mem_mask) << 16);
290280}
291281
292
293
294READ16_MEMBER(r2dx_v33_state::rdx_v33_unknown2_r)
295{
296   // debug port maybe? read on R2 startup, player can't die if you return 0x0000
297   return 0xffff;
298}
299
300282static ADDRESS_MAP_START( rdx_v33_map, AS_PROGRAM, 16, r2dx_v33_state )
301283   AM_RANGE(0x00000, 0x003ff) AM_RAM // vectors copied here
302284
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307289   AM_RANGE(0x00404, 0x00405) AM_WRITE(r2dx_rom_bank_w)
308290   AM_RANGE(0x00406, 0x00407) AM_WRITE(tile_bank_w)
309291
310   AM_RANGE(0x00420, 0x00421) AM_WRITE(r2dx_unk1_w)
311   AM_RANGE(0x00422, 0x00423) AM_WRITE(r2dx_unk2_w)
312   AM_RANGE(0x00424, 0x00425) AM_WRITE(r2dx_dx_w)
313   AM_RANGE(0x00426, 0x00427) AM_WRITE(r2dx_dy_w)
314
292   AM_RANGE(0x00420, 0x00421) AM_WRITE(r2dx_dx_w)
293   AM_RANGE(0x00422, 0x00423) AM_WRITE(r2dx_dy_w)
294   AM_RANGE(0x00424, 0x00425) AM_WRITE(r2dx_sdistl_w)
295   AM_RANGE(0x00426, 0x00427) AM_WRITE(r2dx_sdisth_w)
315296   AM_RANGE(0x00428, 0x00429) AM_WRITE(r2dx_angle_w)
316297
317   AM_RANGE(0x00430, 0x00431) AM_READ(rdx_angle_r)
318   AM_RANGE(0x00432, 0x00433) AM_READ(rdx_dist_r)
319
298   AM_RANGE(0x00430, 0x00431) AM_READ(r2dx_angle_r)
299   AM_RANGE(0x00432, 0x00433) AM_READ(r2dx_dist_r)
320300   AM_RANGE(0x00434, 0x00435) AM_READ(r2dx_sin_r)
321301   AM_RANGE(0x00436, 0x00437) AM_READ(r2dx_cos_r)
322302
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343323   
344324
345325   AM_RANGE(0x00700, 0x00701) AM_WRITE(rdx_v33_eeprom_w)
346  AM_RANGE(0x00740, 0x00741) AM_READ(rdx_v33_unknown2_r)
347326   AM_RANGE(0x00744, 0x00745) AM_READ_PORT("INPUT")
348327   AM_RANGE(0x0074c, 0x0074d) AM_READ_PORT("SYSTEM")
349328   AM_RANGE(0x00762, 0x00763) AM_READ(sprite_prot_dst1_r)
r32218r32219
377356   // 0x404 is bank on r2dx, this doesn't need it
378357   // AM_RANGE(0x00406, 0x00407) AM_WRITE(tile_bank_w) // not the same?
379358
380   AM_RANGE(0x00420, 0x00421) AM_WRITE(r2dx_unk1_w)
381   AM_RANGE(0x00422, 0x00423) AM_WRITE(r2dx_unk2_w)
382   AM_RANGE(0x00424, 0x00425) AM_WRITE(r2dx_dx_w)
383   AM_RANGE(0x00426, 0x00427) AM_WRITE(r2dx_dy_w)
384
359   AM_RANGE(0x00420, 0x00421) AM_WRITE(r2dx_dx_w)
360   AM_RANGE(0x00422, 0x00423) AM_WRITE(r2dx_dy_w)
361   AM_RANGE(0x00424, 0x00425) AM_WRITE(r2dx_sdistl_w)
362   AM_RANGE(0x00426, 0x00427) AM_WRITE(r2dx_sdisth_w)
385363   AM_RANGE(0x00428, 0x00429) AM_WRITE(r2dx_angle_w)
386364
387   AM_RANGE(0x00430, 0x00431) AM_READ(rdx_angle_r)
388   AM_RANGE(0x00432, 0x00433) AM_READ(rdx_dist_r)
389
365   AM_RANGE(0x00430, 0x00431) AM_READ(r2dx_angle_r)
366   AM_RANGE(0x00432, 0x00433) AM_READ(r2dx_dist_r)
390367   AM_RANGE(0x00434, 0x00435) AM_READ(r2dx_sin_r)
391368   AM_RANGE(0x00436, 0x00437) AM_READ(r2dx_cos_r)
392369
r32218r32219
875852   ROM_REGION( 0x100000, "oki", 0 ) /* ADPCM samples */
876853   ROM_LOAD( "pcm.099", 0x00000, 0x100000, CRC(97ca2907) SHA1(bfe8189300cf72089d0beaeab8b1a0a1a4f0a5b6) )
877854
878   ROM_REGION( 0x40000, "user2", 0 ) /* SEI333 (AKA COPX-D3) data */
855   ROM_REGION( 0x40000, "math", 0 ) /* SEI333 (AKA COPX-D3) data */
879856   ROM_LOAD( "copx_d3.357", 0x00000, 0x20000, CRC(fa2cf3ad) SHA1(13eee40704d3333874b6e3da9ee7d969c6dc662a) )
880857
881858   ROM_REGION16_BE( 0x80, "eeprom", 0 )
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902879   ROM_REGION( 0x100000, "oki", 0 ) /* ADPCM samples */
903880   ROM_LOAD( "pcm.099", 0x00000, 0x100000, CRC(97ca2907) SHA1(bfe8189300cf72089d0beaeab8b1a0a1a4f0a5b6) )
904881
905   ROM_REGION( 0x40000, "user2", 0 ) /* SEI333 (AKA COPX-D3) data */
882   ROM_REGION( 0x40000, "math", 0 ) /* SEI333 (AKA COPX-D3) data */
906883   ROM_LOAD( "copx_d3.357", 0x00000, 0x20000, CRC(fa2cf3ad) SHA1(13eee40704d3333874b6e3da9ee7d969c6dc662a) )
907884
908885   ROM_REGION16_BE( 0x80, "eeprom", 0 )
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917894
918895   ROM_REGION( 0x400000, "maincpu", ROMREGION_ERASEFF ) /* v33 main cpu */
919896
920   ROM_REGION( 0x40000, "user2", 0 ) /* SEI333 (AKA COPX-D3) data */
897   ROM_REGION( 0x40000, "math", 0 ) /* SEI333 (AKA COPX-D3) data */
921898   ROM_LOAD( "copx-d3.bin", 0x00000, 0x20000, CRC(fa2cf3ad) SHA1(13eee40704d3333874b6e3da9ee7d969c6dc662a) ) /* Not from this set, but same data as Zero Team 2000 & Raiden II New */
922899
923900   ROM_REGION( 0x20000, "audiocpu", 0 ) /* 64k code for sound Z80 */
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949926
950927   ROM_REGION( 0x400000, "maincpu", ROMREGION_ERASEFF ) /* v33 main cpu */
951928
952   ROM_REGION( 0x40000, "user2", 0 ) /* SEI333 (AKA COPX-D3) data */
929   ROM_REGION( 0x40000, "math", 0 ) /* SEI333 (AKA COPX-D3) data */
953930   ROM_LOAD( "mx27c1000mc.u0366", 0x00000, 0x20000, CRC(fa2cf3ad) SHA1(13eee40704d3333874b6e3da9ee7d969c6dc662a) ) /* PCB silkscreened 333ROM */
954931
955932   ROM_REGION( 0x20000, "audiocpu", 0 ) /* 64k code for sound Z80 */

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