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r2103 Tuesday 25th March, 2008 at 13:59:57 UTC by Miodrag Milanović
[SPECIAL] Specialist MX floppy added
[src/mess/drivers]special.c
[src/mess/includes]special.h
[src/mess/machine]special.c

src/mess/includes/special.h
r2102r2103
1818
1919extern DRIVER_INIT( specimx );
2020extern MACHINE_RESET( specimx );
21extern MACHINE_START ( specimx );
22extern DEVICE_LOAD( specimx_floppy );
2123
2224extern WRITE8_HANDLER( specimx_select_bank );
2325
2426extern READ8_HANDLER ( specimx_video_color_r );
2527extern WRITE8_HANDLER( specimx_video_color_w );
2628
29extern READ8_HANDLER ( specimx_disk_data_r );
30extern WRITE8_HANDLER( specimx_disk_data_w );
31extern READ8_HANDLER ( specimx_disk_ctrl_r );
32extern WRITE8_HANDLER( specimx_disk_ctrl_w );
2733
2834/*----------- defined in video/special.c -----------*/
2935
src/mess/machine/special.c
r2102r2103
1212#include "cpu/i8085/i8085.h"
1313#include "sound/dac.h"
1414#include "devices/cassette.h"
15#include "devices/basicdsk.h"
1516#include "machine/8255ppi.h"
17#include "machine/pit8253.h"
18#include "machine/wd17xx.h"
1619
17
1820UINT8 specimx_color;
1921UINT8 *specimx_colorram;
2022
r2102r2103
3234   memory_configure_bank(1, 0, 2, RAM, 0xc000);   
3335}
3436
35DRIVER_INIT(specimx)
36{
37   memset(mess_ram,0,256*1024);
38}
39
4037READ8_HANDLER (specialist_8255_porta_r )
4138{
4239   if (readinputport(0)!=0xff) return 0xfe;
r2102r2103
200197   specimx_set_bank(offset);   
201198}
202199
200void specimx_fdc_callback(running_machine *machine, wd17xx_state_t event, void *param)
201{
202   switch (event)
203   {
204      case WD17XX_IRQ_CLR:
205      case WD17XX_IRQ_SET:
206      case WD17XX_DRQ_CLR:
207      case WD17XX_DRQ_SET:
208         /* do nothing */
209         break;
210   }
211}
212
213DRIVER_INIT(specimx)
214{
215   memset(mess_ram,0,256*1024);
216}
217
218static const struct pit8253_config specimx_pit8253_intf =
219{
220   TYPE8253,
221   {
222      {
223         2000000,
224         NULL,
225         NULL
226      },
227      {
228         2000000,
229         NULL,
230         NULL
231      },
232      {
233         2000000,
234         NULL,
235         NULL
236      }
237   }
238};
239
240MACHINE_START( specimx )
241{
242   wd17xx_init(machine, WD_TYPE_1793, specimx_fdc_callback, NULL);
243   wd17xx_set_density (DEN_FM_HI);
244   pit8253_init(1, &specimx_pit8253_intf);
245}
246
203247MACHINE_RESET( specimx )
204248{
205249   ppi8255_init(&specialist_ppi8255_interface);
206250   specimx_set_bank(2); // Initiali load ROM disk
207251   specimx_color = 0x70;   
252   wd17xx_reset();
253   wd17xx_set_side(0);
208254}
209255
256READ8_HANDLER ( specimx_disk_data_r )
257{
258 switch(offset) {       
259   case 0 :
260         return wd17xx_status_r(machine, offset);
261   case 1 :
262         return wd17xx_track_r(machine, offset);
263    case 2 :
264         return wd17xx_sector_r(machine, offset);
265   case 3 :
266         return wd17xx_data_r(machine, offset);
267  } 
268  return 0;
269}
270WRITE8_HANDLER( specimx_disk_data_w )
271{     
272  switch(offset) {       
273      case 0 :
274         wd17xx_command_w(machine, offset, data);break;
275      case 1 :
276         wd17xx_track_w (machine, offset, data);break;
277      case 2 :
278         wd17xx_sector_w (machine, offset, data);break;
279      case 3 :
280         wd17xx_data_w (machine, offset, data);break;
281  } 
282}
210283
284READ8_HANDLER ( specimx_disk_ctrl_r )
285{
286  return 0xff;
287}
288
289WRITE8_HANDLER( specimx_disk_ctrl_w )
290{   
291
292   switch(offset) {             
293      case 2 :                 
294             wd17xx_set_side(data & 1);                     
295            break;         
296      case 3 :           
297             wd17xx_set_drive(data & 1);           
298             break;
299         
300  } 
301}
302
303static unsigned long specimx_calcoffset(UINT8 t, UINT8 h, UINT8 s,
304   UINT8 tracks, UINT8 heads, UINT8 sec_per_track, UINT16 sector_length, UINT8 first_sector_id, UINT16 offset_track_zero)
305{
306   unsigned long o;   
307    o = (t * 1024 * 5 * 2) + (h * 1024 * 5) + 1024 * (s-1);
308   return o;
309}
310
311DEVICE_LOAD( specimx_floppy )
312{
313   int size;
314
315   if (! image_has_been_created(image))
316      {
317      size = image_length(image);
318
319      switch (size)
320         {
321         case 800*1024:
322            break;
323         default:
324            return INIT_FAIL;
325         }
326      }
327   else
328      return INIT_FAIL;
329
330   if (device_load_basicdsk_floppy (image) != INIT_PASS)
331      return INIT_FAIL;
332
333   basicdsk_set_geometry (image, 80, 2, 6, 1024, 1, 0, FALSE);
334   basicdsk_set_calcoffset(image, specimx_calcoffset);
335   return INIT_PASS;
336}
src/mess/drivers/special.c
r2102r2103
1212#include "cpu/i8085/i8085.h"
1313#include "includes/special.h"
1414#include "machine/8255ppi.h"
15#include "machine/pit8253.h"
1516#include "sound/dac.h"
1617#include "devices/cassette.h"
18#include "devices/basicdsk.h"
1719#include "formats/rk_cas.h"
20#include "machine/wd17xx.h"
1821
1922/* Address maps */
2023static ADDRESS_MAP_START(specialist_mem, ADDRESS_SPACE_PROGRAM, 8)
21   AM_RANGE( 0x0000, 0x2fff ) AM_RAMBANK(1) // First bank
24     AM_RANGE( 0x0000, 0x2fff ) AM_RAMBANK(1) // First bank
2225    AM_RANGE( 0x3000, 0x8fff ) AM_RAM  // RAM   
2326    AM_RANGE( 0x9000, 0xbfff ) AM_RAM  AM_BASE(&specialist_video_ram) // Video RAM
2427    AM_RANGE( 0xc000, 0xf000 ) AM_ROM  // System ROM
r2102r2103
2831
2932
3033static ADDRESS_MAP_START(specimx_mem, ADDRESS_SPACE_PROGRAM, 8)
31   AM_RANGE( 0x0000, 0x8fff ) AM_READWRITE(SMH_BANK1, SMH_BANK1)
32   AM_RANGE( 0x9000, 0xbfff ) AM_READWRITE(SMH_BANK2, SMH_BANK2)
33    AM_RANGE( 0xc000, 0xffbf ) AM_READWRITE(SMH_BANK3, SMH_BANK3)
34    AM_RANGE( 0x0000, 0x8fff ) AM_READWRITE(SMH_BANK1, SMH_BANK1)
35      AM_RANGE( 0x9000, 0xbfff ) AM_READWRITE(SMH_BANK2, SMH_BANK2)
36     AM_RANGE( 0xc000, 0xffbf ) AM_READWRITE(SMH_BANK3, SMH_BANK3)
3437    AM_RANGE( 0xffc0, 0xffdf ) AM_READWRITE(SMH_BANK4, SMH_BANK4)
3538    AM_RANGE( 0xffe0, 0xffe3 ) AM_READWRITE(specialist_keyboard_r,specialist_keyboard_w) // 8255 for keyboard   
3639    AM_RANGE( 0xffe4, 0xffe7 ) AM_RAM //external 8255
40    AM_RANGE( 0xffe8, 0xffeb ) AM_READWRITE(specimx_disk_data_r,specimx_disk_data_w)
41    AM_RANGE( 0xffec, 0xffef ) AM_READWRITE(pit8253_0_r, pit8253_0_w)
42    AM_RANGE( 0xfff0, 0xfff3 ) AM_READWRITE(specimx_disk_ctrl_r, specimx_disk_ctrl_w)
3743    AM_RANGE( 0xfff8, 0xfff8 ) AM_READWRITE(specimx_video_color_r,specimx_video_color_w)
3844    AM_RANGE( 0xfffc, 0xfffe ) AM_WRITE(specimx_select_bank)     
3945ADDRESS_MAP_END
r2102r2103
305311static MACHINE_DRIVER_START( specimx )
306312      MDRV_CPU_ADD(8080, 2000000)
307313        MDRV_CPU_PROGRAM_MAP(specimx_mem, 0)     
308       MDRV_MACHINE_RESET( specimx )
314       
315        MDRV_MACHINE_START ( specimx )
316        MDRV_MACHINE_RESET ( specimx )
317       
309318       
310319    /* video hardware */       
311320      MDRV_SCREEN_ADD("main", RASTER)         
r2102r2103
368377   }
369378}
370379
380static void specimx_floppy_getinfo(const mess_device_class *devclass, UINT32 state, union devinfo *info)
381{
382   /* floppy */
383   switch(state)
384   {
385      /* --- the following bits of info are returned as 64-bit signed integers --- */
386      case MESS_DEVINFO_INT_COUNT:                     info->i = 2; break;
387
388      /* --- the following bits of info are returned as pointers to data or functions --- */
389      case MESS_DEVINFO_PTR_LOAD:                     info->load = device_load_specimx_floppy; break;
390
391      /* --- the following bits of info are returned as NULL-terminated strings --- */
392      case MESS_DEVINFO_STR_FILE_EXTENSIONS:            strcpy(info->s = device_temp_str(), "odi,img"); break;
393
394      default:                              legacybasicdsk_device_getinfo(devclass, state, info); break;
395   }   
396}
371397SYSTEM_CONFIG_START(special)   
372398   CONFIG_DEVICE(special_cassette_getinfo)
373399SYSTEM_CONFIG_END
r2102r2103
375401SYSTEM_CONFIG_START(specimx)   
376402    CONFIG_RAM_DEFAULT(256 * 1024)
377403   CONFIG_DEVICE(special_cassette_getinfo)
404   CONFIG_DEVICE(specimx_floppy_getinfo);
378405SYSTEM_CONFIG_END
379406
380407/* Driver */

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