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r3261 Sunday 14th September, 2008 at 12:00:38 UTC by Wilbert Pol
[JUPITER] Fixed regression; driver works again.
[docs]messnew.txt
[src/mess]mess.mak
[src/mess/drivers]jupiter.c
[src/mess/includes]jupiter.h
[src/mess/machine]jupiter.c
[src/mess/video]jupiter.c

src/mess/video/jupiter.c
r3260r3261
1/***************************************************************************
2
3  jupiter.c
4
5  Functions to emulate the video hardware of the Jupiter Ace.
6
7***************************************************************************/
8
9#include "driver.h"
10#include "includes/jupiter.h"
11
12
13UINT8 *jupiter_charram;
14size_t jupiter_charram_size;
15
16
17WRITE8_HANDLER( jupiter_vh_charram_w )
18{
19    if(data == jupiter_charram[offset])
20      return; /* no change */
21
22    jupiter_charram[offset] = data;
23
24    /* decode character graphics again */
25   decodechar(machine->gfx[0], offset / 8, jupiter_charram);
26}
27
28
29VIDEO_UPDATE( jupiter )
30{
31   int offs;
32
33    for(offs = 0; offs < videoram_size; offs++)
34   {
35        int code = videoram[offs];
36      int sx, sy;
37
38      sy = (offs / 32) * 8;
39      sx = (offs % 32) * 8;
40
41      drawgfx(bitmap, screen->machine->gfx[0], code & 0x7f, (code & 0x80) ? 1 : 0, 0,0, sx,sy,
42         NULL, TRANSPARENCY_NONE, 0);
43   }
44
45   return 0;
46}
src/mess/includes/jupiter.h
r3260r3261
1717DEVICE_IMAGE_LOAD( jupiter_tap );
1818DEVICE_IMAGE_UNLOAD( jupiter_tap );
1919
20READ8_HANDLER( jupiter_port_7ffe_r);
21WRITE8_HANDLER( jupiter_port_fe_w);
2220
23
2421/*----------- defined in video/jupiter.c -----------*/
2522
26VIDEO_UPDATE( jupiter );
27WRITE8_HANDLER( jupiter_vh_charram_w );
28extern unsigned char *jupiter_charram;
29extern size_t jupiter_charram_size;
3023
3124
3225#endif /* JUPITER_H_ */
src/mess/machine/jupiter.c
r3260r3261
77
88***************************************************************************/
99
10#include <stdarg.h>
1110#include "driver.h"
1211#include "cpu/z80/z80.h"
1312#include "includes/jupiter.h"
14#include "sound/speaker.h"
1513#include "image.h"
1614
1715#define   JUPITER_NONE   0
r3260r3261
3634
3735static void jupiter_machine_stop(running_machine *machine);
3836
39static UINT8 read_cfg(running_machine *machine)
40{
41   UINT8 result;
42   switch(mame_get_phase(machine))
43   {
44      case MAME_PHASE_RESET:
45      case MAME_PHASE_RUNNING:
46         result = input_port_read(machine, "CFG");
47         break;
4837
49      default:
50         result = 0x00;
51         break;
52   }
53   return result;
54}
55
5638/* only gets called at the start of a cpu time slice */
5739
5840OPBASE_HANDLER( jupiter_opbaseoverride )
r3260r3261
10082   return (-1);
10183}
10284
103static   int   jupiter_ramsize = 2;
104
10585MACHINE_START( jupiter )
10686{
10787   logerror("jupiter_init\r\n");
10888   logerror("data: %p\n", jupiter_data);
10989
110   if (read_cfg(machine) != jupiter_ramsize)
111   {
112      jupiter_ramsize = read_cfg(machine);
113      switch (jupiter_ramsize)
114      {
115         case 03:
116         case 02:
117            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_RAM);
118            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_RAM);
119            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_RAM);
120            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_RAM);
121            break;
122         case 01:
123            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_NOP);
124            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_NOP);
125            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_RAM);
126            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_RAM);
127            break;
128         case 00:
129            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_NOP);
130            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x8800, 0xffff, 0, 0, SMH_NOP);
131            memory_install_write8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_NOP);
132            memory_install_read8_handler(machine, 0, ADDRESS_SPACE_PROGRAM, 0x4800, 0x87ff, 0, 0, SMH_NOP);
133            break;
134      }
135
136   }
13790   if (jupiter_data)
13891   {
13992      logerror("data: %p. type: %d.\n", jupiter_data,   jupiter_data_type);
r3260r3261
289242   }
290243}
291244
292READ8_HANDLER ( jupiter_port_7ffe_r )
293{
294   speaker_level_w(0,0);
295   return (input_port_read(machine, "KEY7"));
296}
297
298WRITE8_HANDLER ( jupiter_port_fe_w )
299{
300   speaker_level_w(0,1);
301}
302
src/mess/mess.mak
r3260r3261
931931
932932$(MESSOBJ)/jupiter.a : \
933933   $(MESS_DRIVERS)/jupiter.o   \
934   $(MESS_VIDEO)/jupiter.o   \
935934   $(MESS_MACHINE)/jupiter.o   \
936935
937936$(MESSOBJ)/mbee.a :    \
src/mess/drivers/jupiter.c
r3260r3261
33
44    CPU: Z80
55        0000-1fff ROM
6        2000-22ff unused
7        2300-23ff RAM (cassette buffer)
8        2400-26ff RAM (screen)
9        2700-27ff RAM (edit buffer)
10        2800-2bff unused
11        2c00-2fff RAM (char set)
12        3000-3bff unused
13        3c00-47ff RAM (standard)
14        4800-87ff RAM (16K expansion)
15        8800-ffff RAM (Expansion)
6        2000-23ff Mirror of 2400-27FF
7        2400-27ff RAM (1K RAM used for screen and edit/cassette buffer)
8        2800-2bff Mirror of 2C00-2FFF
9        2c00-2fff RAM (1K RAM for char set, write only)
10        3000-3bff Mirror of 3C00-3FFF
11        3c00-3fff RAM (1K RAM standard)
12        4000-7fff RAM (16K Expansion)
13        8000-ffff RAM (48K Expansion)
1614
1715Interrupts:
1816
r3260r3261
2523        Tape and buzzer
2624
2725    In 0xfe:
28        Keyboard input and buzzer
26        Keyboard input, tape, and buzzer
2927***************************************************************************/
3028
3129#include "driver.h"
3230#include "cpu/z80/z80.h"
3331#include "includes/jupiter.h"
3432#include "devices/cartslot.h"
33#include "devices/cassette.h"
34#include "sound/speaker.h"
3535
36/* This needs to be moved to drivers/xtal */
37#define XTAL_6_5MHz   6500000
3638
39static emu_timer   *jupiter_set_irq_timer;
40static emu_timer   *jupiter_clear_irq_timer;
41static UINT8      *jupiter_charram;
42static UINT8      *jupiter_expram;
43
44
45static READ8_HANDLER( jupiter_io_r );
46static WRITE8_HANDLER( jupiter_port_fe_w );
47static WRITE8_HANDLER( jupiter_expram_w );
48static WRITE8_HANDLER( jupiter_vh_charram_w );
49
50
3751/* memory w/r functions */
3852static ADDRESS_MAP_START( jupiter_mem , ADDRESS_SPACE_PROGRAM, 8)
3953   AM_RANGE(0x0000, 0x1fff) AM_ROM
40   AM_RANGE(0x2000, 0x22ff) AM_NOP
41   AM_RANGE(0x2300, 0x23ff) AM_RAM
42   AM_RANGE(0x2400, 0x26ff) AM_RAM AM_BASE(&videoram) AM_SIZE(&videoram_size)
43   AM_RANGE(0x2700, 0x27ff) AM_RAM
44   AM_RANGE(0x2800, 0x2bff) AM_NOP
45   AM_RANGE(0x2c00, 0x2fff) AM_READWRITE(SMH_RAM, jupiter_vh_charram_w) AM_BASE(&jupiter_charram) AM_SIZE(&jupiter_charram_size)
46   AM_RANGE(0x3000, 0x3bff) AM_NOP
47   AM_RANGE(0x3c00, 0x47ff) AM_RAM
48   AM_RANGE(0x4800, 0x87ff) AM_RAM
49   AM_RANGE(0x8800, 0xffff) AM_RAM
54   AM_RANGE(0x2400, 0x27ff) AM_MIRROR(0x0400) AM_RAM AM_BASE(&videoram)
55   AM_RANGE(0x2c00, 0x2fff) AM_MIRROR(0x0400) AM_WRITE(jupiter_vh_charram_w) AM_BASE(&jupiter_charram)
56   AM_RANGE(0x3c00, 0x3fff) AM_MIRROR(0x0c00) AM_RAM
57   AM_RANGE(0x4800, 0xffff) AM_RAM AM_RAM_WRITE( jupiter_expram_w ) AM_BASE(&jupiter_expram)         /* Expansion RAM */
5058ADDRESS_MAP_END
5159
5260/* port i/o functions */
5361static ADDRESS_MAP_START( jupiter_io , ADDRESS_SPACE_IO, 8)
54   AM_RANGE( 0x00fe, 0xfffe) AM_WRITE( jupiter_port_fe_w )
55   AM_RANGE( 0xfefe, 0xfefe) AM_READ_PORT( "KEY0" )
56   AM_RANGE( 0xfdfe, 0xfdfe) AM_READ_PORT( "KEY1" )
57   AM_RANGE( 0xfbfe, 0xfbfe) AM_READ_PORT( "KEY2" )
58   AM_RANGE( 0xf7fe, 0xf7fe) AM_READ_PORT( "KEY3" )
59   AM_RANGE( 0xeffe, 0xeffe) AM_READ_PORT( "KEY4" )
60   AM_RANGE( 0xdffe, 0xdffe) AM_READ_PORT( "KEY5" )
61   AM_RANGE( 0xbffe, 0xbffe) AM_READ_PORT( "KEY6" )
62   AM_RANGE( 0x7ffe, 0x7ffe) AM_READ( jupiter_port_7ffe_r )
62   AM_RANGE( 0x0000, 0xffff ) AM_READWRITE( jupiter_io_r, jupiter_port_fe_w )
6363ADDRESS_MAP_END
6464
65/* graphics output */
6665
67static const gfx_layout jupiter_charlayout =
68{
69   8, 8,   /* 8x8 characters */
70   128,   /* 128 characters */
71   1,      /* 1 bits per pixel */
72   {0},   /* no bitplanes; 1 bit per pixel */
73   {0, 1, 2, 3, 4, 5, 6, 7},
74   {0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8},
75   8*8    /* each character takes 8 consecutive bytes */
76};
77
78static PALETTE_INIT( jupiter )
79{
80   palette_set_color(machine,0,RGB_BLACK); /* black */
81   palette_set_color(machine,1,RGB_WHITE); /* white */
82   palette_set_color(machine,2,RGB_WHITE); /* white */
83   palette_set_color(machine,3,RGB_BLACK); /* black */
84}
85
86static GFXDECODE_START( jupiter )
87   GFXDECODE_ENTRY( "main", 0x2c00, jupiter_charlayout, 0, 2 )
88GFXDECODE_END
89
90
9166/* keyboard input */
9267
9368static INPUT_PORTS_START (jupiter)
r3260r3261
11186   PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E)          PORT_CHAR('e') PORT_CHAR('E')
11287   PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R)          PORT_CHAR('r') PORT_CHAR('R') PORT_CHAR('<')
11388   PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T)          PORT_CHAR('t') PORT_CHAR('T') PORT_CHAR('>')
89
11490   PORT_START("KEY3")   /* 3: 0xF7FE */
11591   PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1)          PORT_CHAR('1') PORT_CHAR('!')
11692   PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2)          PORT_CHAR('2') PORT_CHAR('@')
r3260r3261
148124
149125   PORT_START("CFG")   /* 8: machine config */
150126   PORT_DIPNAME( 0x03, 2, "RAM Size")
151   PORT_DIPSETTING(   0, "3Kb")
152   PORT_DIPSETTING(   1, "19Kb")
153   PORT_DIPSETTING(   2, "49Kb")
127   PORT_DIPSETTING(   0, "No RAM Expansion")
128   PORT_DIPSETTING(   1, "16KB RAM Expansion")
129   PORT_DIPSETTING(   2, "48KB RAM Expansion")
154130INPUT_PORTS_END
155131
156/* Sound output */
157132
158static INTERRUPT_GEN( jupiter_interrupt )
133static READ8_HANDLER( jupiter_io_r )
159134{
160   cpunum_set_input_line(machine, 0, 0, HOLD_LINE);
135   UINT8 data = 0xff;
136
137   if ( ( offset & 0xff ) != 0xfe )
138      return data;
139
140   if ( ! ( offset & 0x0100 ) )
141   {
142      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY0" ) );
143   }
144   if ( ! ( offset & 0x0200 ) )
145   {
146      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY1" ) );
147   }
148   if ( ! ( offset & 0x0400 ) )
149   {
150      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY2" ) );
151   }
152   if ( ! ( offset & 0x0800 ) )
153   {
154      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY3" ) );
155   }
156   if ( ! ( offset & 0x1000 ) )
157   {
158      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY4" ) );
159   }
160   if ( ! ( offset & 0x2000 ) )
161   {
162      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY5" ) );
163   }
164   if ( ! ( offset & 0x4000 ) )
165   {
166      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY6" ) );
167   }
168   if ( ! ( offset & 0x8000 ) )
169   {
170//      cassette_output( device_list_find_by_tag( machine->config->devicelist, CASSETTE, "cassette" ), -1 );
171      speaker_level_w(0,0);
172      data = ( data & 0xe0 ) | ( data & input_port_read( machine, "KEY7" ) );;
173   }
174   if ( cassette_input(device_list_find_by_tag( machine->config->devicelist, CASSETTE, "cassette" )) < 0 )
175   {
176      data &= ~0x20;
177   }
178   return data;
161179}
162180
181
182static WRITE8_HANDLER( jupiter_port_fe_w )
183{
184//   cassette_output( device_list_find_by_tag( machine->config->devicelist, CASSETTE, "cassette" ), 1 );
185   speaker_level_w(0,1);
186}
187
188
189static WRITE8_HANDLER( jupiter_expram_w )
190{
191   if ( offset > 0x4000 )
192   {
193      if ( input_port_read(machine, "CFG") >= 1 )
194         jupiter_expram[offset] = data;
195   }
196   else
197   {
198      if ( input_port_read(machine, "CFG") == 2 )
199         jupiter_expram[offset] = data;
200   }
201}
202
203
204/* graphics output */
205
206static PALETTE_INIT( jupiter )
207{
208   palette_set_color(machine,0,RGB_BLACK); /* black */
209   palette_set_color(machine,1,RGB_WHITE); /* white */
210   palette_set_color(machine,2,RGB_WHITE); /* white */
211   palette_set_color(machine,3,RGB_BLACK); /* black */
212}
213
214
215static const gfx_layout jupiter_charlayout =
216{
217   8, 8,   /* 8x8 characters */
218   128,   /* 128 characters */
219   1,      /* 1 bits per pixel */
220   {0},   /* no bitplanes; 1 bit per pixel */
221   {0, 1, 2, 3, 4, 5, 6, 7},
222   {0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8},
223   8*8    /* each character takes 8 consecutive bytes */
224};
225
226
227static GFXDECODE_START( jupiter )
228   GFXDECODE_ENTRY( "main", 0x2c00, jupiter_charlayout, 0, 1 )
229   GFXDECODE_ENTRY( "main", 0x2c00, jupiter_charlayout, 2, 1 )
230GFXDECODE_END
231
232
233static WRITE8_HANDLER( jupiter_vh_charram_w )
234{
235   if(data == jupiter_charram[offset])
236      return; /* no change */
237
238   jupiter_charram[offset] = data;
239
240   /* decode character graphics again */
241   decodechar(machine->gfx[0], offset / 8, jupiter_charram);
242   decodechar(machine->gfx[1], offset / 8, jupiter_charram);
243}
244
245
246static TIMER_CALLBACK( jupiter_set_irq_callback )
247{
248   cpunum_set_input_line( machine, 0, 0, ASSERT_LINE );
249}
250
251
252static TIMER_CALLBACK( jupiter_clear_irq_callback )
253{
254   cpunum_set_input_line( machine, 0, 0, CLEAR_LINE );
255}
256
257
258static VIDEO_START( jupiter )
259{
260   jupiter_set_irq_timer = timer_alloc( jupiter_set_irq_callback, NULL );
261   jupiter_clear_irq_timer = timer_alloc( jupiter_clear_irq_callback, NULL );
262
263   timer_adjust_periodic( jupiter_set_irq_timer,
264      video_screen_get_time_until_pos( machine->primary_screen, 31*8, 0 ),
265      0, video_screen_get_frame_period( machine->primary_screen ) );
266
267   timer_adjust_periodic( jupiter_clear_irq_timer,
268      video_screen_get_time_until_pos( machine->primary_screen, 32*8, 0 ),
269      0, video_screen_get_frame_period( machine->primary_screen ) );
270}
271
272
273static VIDEO_UPDATE( jupiter )
274{
275   int offs;
276
277   for(offs = 0; offs < 768; offs++)
278   {
279      int code = videoram[offs];
280      int sx, sy;
281
282      sy = (offs / 32) * 8;
283      sx = (offs % 32) * 8;
284
285      drawgfx(bitmap, ( code & 0x80 ) ? screen->machine->gfx[1] : screen->machine->gfx[0],
286         code & 0x7f, 0, 0,0, sx,sy, NULL, TRANSPARENCY_NONE, 0);
287   }
288
289   return 0;
290}
291
163292/* machine definition */
164293static MACHINE_DRIVER_START( jupiter )
165294   /* basic machine hardware */
166   MDRV_CPU_ADD("main", Z80, 3250000)        /* 3.25 Mhz */
295   MDRV_CPU_ADD("main", Z80, XTAL_6_5MHz/2)        /* 3.25 Mhz */
167296   MDRV_CPU_PROGRAM_MAP(jupiter_mem, 0)
168297   MDRV_CPU_IO_MAP(jupiter_io, 0)
169   MDRV_CPU_VBLANK_INT("main", jupiter_interrupt)
170298   MDRV_INTERLEAVE(1)
171299
172300   MDRV_MACHINE_START( jupiter )
173301
174302   /* video hardware */
175303   MDRV_SCREEN_ADD("main", RASTER)
176   MDRV_SCREEN_REFRESH_RATE(50)
177   MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
178304   MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
179   MDRV_SCREEN_SIZE(32 * 8, 24 * 8)
180   MDRV_SCREEN_VISIBLE_AREA(0, 32 * 8 - 1, 0, 24 * 8 - 1)
305   MDRV_SCREEN_RAW_PARAMS( XTAL_6_5MHz, 416, 0, 256, 264, 0, 192 )
306
181307   MDRV_GFXDECODE( jupiter )
182308   MDRV_PALETTE_LENGTH(4)
183309   MDRV_PALETTE_INIT(jupiter)
184310
311   MDRV_VIDEO_START( jupiter )
185312   MDRV_VIDEO_UPDATE( jupiter )
186313
187314   /* sound hardware */
188315   MDRV_SPEAKER_STANDARD_MONO("mono")
189316   MDRV_SOUND_ADD("speaker", SPEAKER, 0)
190317   MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
318
319   MDRV_CASSETTE_ADD( "cassette", default_cassette_config )
191320MACHINE_DRIVER_END
192321
322
193323ROM_START (jupiter)
194324   ROM_REGION (0x10000, "main",0)
195325   ROM_LOAD ("jupiter.lo", 0x0000, 0x1000, CRC(dc8438a5) SHA1(8fa97eb71e5dd17c7d190c6587ee3840f839347c))
196326   ROM_LOAD ("jupiter.hi", 0x1000, 0x1000, CRC(4009f636) SHA1(98c5d4bcd74bcf014268cf4c00b2007ea5cc21f3))
197327ROM_END
198328
329
199330static void jupiter_cartslot_getinfo(const mess_device_class *devclass, UINT32 state, union devinfo *info)
200331{
201332   /* cartslot */
r3260r3261
214345   }
215346}
216347
217static void jupiter_cassette_getinfo(const mess_device_class *devclass, UINT32 state, union devinfo *info)
218{
219   /* cassette */
220   switch(state)
221   {
222      /* --- the following bits of info are returned as 64-bit signed integers --- */
223      case MESS_DEVINFO_INT_TYPE:                     info->i = IO_CASSETTE; break;
224      case MESS_DEVINFO_INT_READABLE:                  info->i = 1; break;
225      case MESS_DEVINFO_INT_WRITEABLE:                  info->i = 0; break;
226      case MESS_DEVINFO_INT_CREATABLE:                  info->i = 0; break;
227      case MESS_DEVINFO_INT_COUNT:                     info->i = 1; break;
228      case MESS_DEVINFO_INT_RESET_ON_LOAD:               info->i = 1; break;
229348
230      /* --- the following bits of info are returned as pointers to data or functions --- */
231      case MESS_DEVINFO_PTR_LOAD:                     info->load = DEVICE_IMAGE_LOAD_NAME(jupiter_tap); break;
232      case MESS_DEVINFO_PTR_UNLOAD:                  info->unload = DEVICE_IMAGE_UNLOAD_NAME(jupiter_tap); break;
233
234      /* --- the following bits of info are returned as NULL-terminated strings --- */
235      case MESS_DEVINFO_STR_FILE_EXTENSIONS:            strcpy(info->s = device_temp_str(), "tap"); break;
236   }
237}
238
239349static SYSTEM_CONFIG_START(jupiter)
240350   CONFIG_DEVICE(jupiter_cartslot_getinfo)
241   CONFIG_DEVICE(jupiter_cassette_getinfo)
242351SYSTEM_CONFIG_END
243352
244353/*    YEAR  NAME      PARENT    COMPAT  MACHINE   INPUT     INIT      CONFIG    COMPANY   FULLNAME */
docs/messnew.txt
r3260r3261
9090  black and white, and fixed quickloading. System is now fully
9191  working, including the "Säkkijärven polkka" program. [Curt Coder]
9292
93- [JUPITER] Fixed regression; driver works again.  [Wilbert Pol]
94
9395- [PET] Refactored cartridge code to rely on MESS core functions. Disabled
9496  .crt support (.a0 and .b0 files working as before) since I doubt these
9597  computers used the same format as C64. More work when/if more documents

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