6cadc2da |
1 | // Memory I/O handlers for Sega/Mega CD.\r |
2 | // Loosely based on Gens code.\r |
3 | // (c) Copyright 2007, Grazvydas "notaz" Ignotas\r |
cc68a136 |
4 | \r |
cc68a136 |
5 | \r |
cc68a136 |
6 | #include "../PicoInt.h"\r |
7 | \r |
cc68a136 |
8 | #include "../sound/ym2612.h"\r |
9 | #include "../sound/sn76496.h"\r |
10 | \r |
cb4a513a |
11 | #include "gfx_cd.h"\r |
4f265db7 |
12 | #include "pcm.h"\r |
cb4a513a |
13 | \r |
eff55556 |
14 | #ifndef UTYPES_DEFINED\r |
cc68a136 |
15 | typedef unsigned char u8;\r |
16 | typedef unsigned short u16;\r |
17 | typedef unsigned int u32;\r |
eff55556 |
18 | #define UTYPES_DEFINED\r |
19 | #endif\r |
cc68a136 |
20 | \r |
b5e5172d |
21 | //#define rdprintf dprintf\r |
22 | #define rdprintf(...)\r |
68cba51e |
23 | //#define wrdprintf dprintf\r |
913ef4b7 |
24 | #define wrdprintf(...)\r |
cc68a136 |
25 | \r |
b5e5172d |
26 | #ifdef EMU_CORE_DEBUG\r |
27 | extern u32 lastread_a, lastread_d[16], lastwrite_cyc_d[16];\r |
28 | extern int lrp_cyc, lwp_cyc;\r |
29 | #undef USE_POLL_DETECT\r |
30 | #endif\r |
31 | \r |
cc68a136 |
32 | // -----------------------------------------------------------------\r |
33 | \r |
7a1f6e45 |
34 | // poller detection\r |
7a1f6e45 |
35 | #define POLL_LIMIT 16\r |
36 | #define POLL_CYCLES 124\r |
37 | // int m68k_poll_addr, m68k_poll_cnt;\r |
38 | unsigned int s68k_poll_adclk, s68k_poll_cnt;\r |
cc68a136 |
39 | \r |
4ff2d527 |
40 | #ifndef _ASM_CD_MEMORY_C\r |
cb4a513a |
41 | static u32 m68k_reg_read16(u32 a)\r |
cc68a136 |
42 | {\r |
43 | u32 d=0;\r |
44 | a &= 0x3e;\r |
672ad671 |
45 | // dprintf("m68k_regs r%2i: [%02x] @%06x", realsize&~1, a+(realsize&1), SekPc);\r |
cc68a136 |
46 | \r |
47 | switch (a) {\r |
672ad671 |
48 | case 0:\r |
c459aefd |
49 | d = ((Pico_mcd->s68k_regs[0x33]<<13)&0x8000) | Pico_mcd->m.busreq; // here IFL2 is always 0, just like in Gens\r |
672ad671 |
50 | goto end;\r |
cc68a136 |
51 | case 2:\r |
672ad671 |
52 | d = (Pico_mcd->s68k_regs[a]<<8) | (Pico_mcd->s68k_regs[a+1]&0xc7);\r |
c008977e |
53 | // the DMNA delay must only be visible on s68k side (Lunar2, Silpheed)\r |
54 | if (Pico_mcd->m.state_flags&2) { d &= ~1; d |= 2; }\r |
55 | //printf("m68k_regs r3: %02x @%06x\n", (u8)d, SekPc);\r |
cc68a136 |
56 | goto end;\r |
c459aefd |
57 | case 4:\r |
58 | d = Pico_mcd->s68k_regs[4]<<8;\r |
59 | goto end;\r |
60 | case 6:\r |
913ef4b7 |
61 | d = *(u16 *)(Pico_mcd->bios + 0x72);\r |
c459aefd |
62 | goto end;\r |
cc68a136 |
63 | case 8:\r |
cc68a136 |
64 | d = Read_CDC_Host(0);\r |
65 | goto end;\r |
c459aefd |
66 | case 0xA:\r |
ca61ee42 |
67 | elprintf(EL_UIO, "m68k FIXME: reserved read");\r |
c459aefd |
68 | goto end;\r |
cc68a136 |
69 | case 0xC:\r |
1cd356a3 |
70 | d = Pico_mcd->m.timer_stopwatch >> 16;\r |
4ff2d527 |
71 | dprintf("m68k stopwatch timer read (%04x)", d);\r |
1cd356a3 |
72 | goto end;\r |
cc68a136 |
73 | }\r |
74 | \r |
cc68a136 |
75 | if (a < 0x30) {\r |
76 | // comm flag/cmd/status (0xE-0x2F)\r |
77 | d = (Pico_mcd->s68k_regs[a]<<8) | Pico_mcd->s68k_regs[a+1];\r |
78 | goto end;\r |
79 | }\r |
80 | \r |
ca61ee42 |
81 | elprintf(EL_UIO, "m68k_regs FIXME invalid read @ %02x", a);\r |
cc68a136 |
82 | \r |
83 | end:\r |
84 | \r |
cc68a136 |
85 | return d;\r |
86 | }\r |
4ff2d527 |
87 | #endif\r |
cc68a136 |
88 | \r |
4ff2d527 |
89 | #ifndef _ASM_CD_MEMORY_C\r |
90 | static\r |
91 | #endif\r |
92 | void m68k_reg_write8(u32 a, u32 d)\r |
cc68a136 |
93 | {\r |
94 | a &= 0x3f;\r |
672ad671 |
95 | // dprintf("m68k_regs w%2i: [%02x] %02x @%06x", realsize, a, d, SekPc);\r |
cc68a136 |
96 | \r |
97 | switch (a) {\r |
98 | case 0:\r |
672ad671 |
99 | d &= 1;\r |
ca61ee42 |
100 | if ((d&1) && (Pico_mcd->s68k_regs[0x33]&(1<<2))) { elprintf(EL_INTS, "m68k: s68k irq 2"); SekInterruptS68k(2); }\r |
c459aefd |
101 | return;\r |
cc68a136 |
102 | case 1:\r |
672ad671 |
103 | d &= 3;\r |
51a902ae |
104 | if (!(d&1)) Pico_mcd->m.state_flags |= 1; // reset pending, needed to be sure we fetch the right vectors on reset\r |
c459aefd |
105 | if ( (Pico_mcd->m.busreq&1) != (d&1)) dprintf("m68k: s68k reset %i", !(d&1));\r |
106 | if ( (Pico_mcd->m.busreq&2) != (d&2)) dprintf("m68k: s68k brq %i", (d&2)>>1);\r |
51a902ae |
107 | if ((Pico_mcd->m.state_flags&1) && (d&3)==1) {\r |
cc68a136 |
108 | SekResetS68k(); // S68k comes out of RESET or BRQ state\r |
4ff2d527 |
109 | Pico_mcd->m.state_flags&=~1;\r |
110 | dprintf("m68k: resetting s68k, cycles=%i", SekCyclesLeft);\r |
cc68a136 |
111 | }\r |
c459aefd |
112 | Pico_mcd->m.busreq = d;\r |
113 | return;\r |
672ad671 |
114 | case 2:\r |
721cd396 |
115 | dprintf("m68k: prg wp=%02x", d);\r |
672ad671 |
116 | Pico_mcd->s68k_regs[2] = d; // really use s68k side register\r |
117 | return;\r |
66fdc0f0 |
118 | case 3: {\r |
119 | u32 dold = Pico_mcd->s68k_regs[3]&0x1f;\r |
c008977e |
120 | //printf("m68k_regs w3: %02x @%06x\n", (u8)d, SekPc);\r |
672ad671 |
121 | d &= 0xc2;\r |
66fdc0f0 |
122 | if ((dold>>6) != ((d>>6)&3))\r |
672ad671 |
123 | dprintf("m68k: prg bank: %i -> %i", (Pico_mcd->s68k_regs[a]>>6), ((d>>6)&3));\r |
124 | //if ((Pico_mcd->s68k_regs[3]&4) != (d&4)) dprintf("m68k: ram mode %i mbit", (d&4) ? 1 : 2);\r |
125 | //if ((Pico_mcd->s68k_regs[3]&2) != (d&2)) dprintf("m68k: %s", (d&4) ? ((d&2) ? "word swap req" : "noop?") :\r |
126 | // ((d&2) ? "word ram to s68k" : "word ram to m68k"));\r |
66fdc0f0 |
127 | if (dold & 4) {\r |
128 | d ^= 2; // writing 0 to DMNA actually sets it, 1 does nothing\r |
129 | } else {\r |
130 | //dold &= ~2; // ??\r |
89fa852d |
131 | #if 1\r |
132 | if ((d & 2) && !(dold & 2)) {\r |
133 | Pico_mcd->m.state_flags |= 2; // we must delay setting DMNA bit (needed for Silpheed)\r |
134 | d &= ~2;\r |
135 | }\r |
136 | #else\r |
66fdc0f0 |
137 | if (d & 2) dold &= ~1; // return word RAM to s68k in 2M mode\r |
89fa852d |
138 | #endif\r |
66fdc0f0 |
139 | }\r |
140 | Pico_mcd->s68k_regs[3] = d | dold; // really use s68k side register\r |
7a1f6e45 |
141 | #ifdef USE_POLL_DETECT\r |
142 | if ((s68k_poll_adclk&0xfe) == 2 && s68k_poll_cnt > POLL_LIMIT) {\r |
143 | SekSetStopS68k(0); s68k_poll_adclk = 0;\r |
8f8fe01e |
144 | elprintf(EL_CDPOLL, "s68k poll release, a=%02x", a);\r |
7a1f6e45 |
145 | }\r |
146 | #endif\r |
672ad671 |
147 | return;\r |
66fdc0f0 |
148 | }\r |
c459aefd |
149 | case 6:\r |
d1df8786 |
150 | Pico_mcd->bios[0x72 + 1] = d; // simple hint vector changer\r |
c459aefd |
151 | return;\r |
152 | case 7:\r |
d1df8786 |
153 | Pico_mcd->bios[0x72] = d;\r |
913ef4b7 |
154 | dprintf("hint vector set to %08x", PicoRead32(0x70));\r |
c459aefd |
155 | return;\r |
7a1f6e45 |
156 | case 0xf:\r |
157 | d = (d << 1) | ((d >> 7) & 1); // rol8 1 (special case)\r |
cc68a136 |
158 | case 0xe:\r |
672ad671 |
159 | //dprintf("m68k: comm flag: %02x", d);\r |
cc68a136 |
160 | Pico_mcd->s68k_regs[0xe] = d;\r |
7a1f6e45 |
161 | #ifdef USE_POLL_DETECT\r |
162 | if ((s68k_poll_adclk&0xfe) == 0xe && s68k_poll_cnt > POLL_LIMIT) {\r |
163 | SekSetStopS68k(0); s68k_poll_adclk = 0;\r |
8f8fe01e |
164 | elprintf(EL_CDPOLL, "s68k poll release, a=%02x", a);\r |
7a1f6e45 |
165 | }\r |
166 | #endif\r |
c459aefd |
167 | return;\r |
672ad671 |
168 | }\r |
169 | \r |
170 | if ((a&0xf0) == 0x10) {\r |
cc68a136 |
171 | Pico_mcd->s68k_regs[a] = d;\r |
7a1f6e45 |
172 | #ifdef USE_POLL_DETECT\r |
173 | if ((a&0xfe) == (s68k_poll_adclk&0xfe) && s68k_poll_cnt > POLL_LIMIT) {\r |
174 | SekSetStopS68k(0); s68k_poll_adclk = 0;\r |
8f8fe01e |
175 | elprintf(EL_CDPOLL, "s68k poll release, a=%02x", a);\r |
7a1f6e45 |
176 | }\r |
177 | #endif\r |
672ad671 |
178 | return;\r |
cc68a136 |
179 | }\r |
180 | \r |
ca61ee42 |
181 | elprintf(EL_UIO, "m68k FIXME: invalid write? [%02x] %02x", a, d);\r |
cc68a136 |
182 | }\r |
183 | \r |
2433f409 |
184 | #ifndef _ASM_CD_MEMORY_C\r |
185 | static\r |
186 | #endif\r |
187 | u32 s68k_poll_detect(u32 a, u32 d)\r |
188 | {\r |
189 | #ifdef USE_POLL_DETECT\r |
ca61ee42 |
190 | // needed mostly for Cyclone, which doesn't always check it's cycle counter\r |
191 | if (SekIsStoppedS68k()) return d;\r |
2433f409 |
192 | // polling detection\r |
193 | if (a == (s68k_poll_adclk&0xff)) {\r |
194 | unsigned int clkdiff = SekCyclesDoneS68k() - (s68k_poll_adclk>>8);\r |
195 | if (clkdiff <= POLL_CYCLES) {\r |
196 | s68k_poll_cnt++;\r |
197 | //printf("-- diff: %u, cnt = %i\n", clkdiff, s68k_poll_cnt);\r |
198 | if (s68k_poll_cnt > POLL_LIMIT) {\r |
199 | SekSetStopS68k(1);\r |
8f8fe01e |
200 | elprintf(EL_CDPOLL, "s68k poll detected @ %06x, a=%02x", SekPcS68k, a);\r |
2433f409 |
201 | }\r |
202 | s68k_poll_adclk = (SekCyclesDoneS68k() << 8) | a;\r |
203 | return d;\r |
204 | }\r |
205 | }\r |
206 | s68k_poll_adclk = (SekCyclesDoneS68k() << 8) | a;\r |
207 | s68k_poll_cnt = 0;\r |
208 | #endif\r |
209 | return d;\r |
210 | }\r |
cc68a136 |
211 | \r |
913ef4b7 |
212 | #define READ_FONT_DATA(basemask) \\r |
213 | { \\r |
214 | unsigned int fnt = *(unsigned int *)(Pico_mcd->s68k_regs + 0x4c); \\r |
215 | unsigned int col0 = (fnt >> 8) & 0x0f, col1 = (fnt >> 12) & 0x0f; \\r |
216 | if (fnt & (basemask << 0)) d = col1 ; else d = col0; \\r |
217 | if (fnt & (basemask << 1)) d |= col1 << 4; else d |= col0 << 4; \\r |
218 | if (fnt & (basemask << 2)) d |= col1 << 8; else d |= col0 << 8; \\r |
219 | if (fnt & (basemask << 3)) d |= col1 << 12; else d |= col0 << 12; \\r |
220 | }\r |
221 | \r |
cc68a136 |
222 | \r |
4ff2d527 |
223 | #ifndef _ASM_CD_MEMORY_C\r |
224 | static\r |
225 | #endif\r |
226 | u32 s68k_reg_read16(u32 a)\r |
cc68a136 |
227 | {\r |
228 | u32 d=0;\r |
cc68a136 |
229 | \r |
672ad671 |
230 | // dprintf("s68k_regs r%2i: [%02x] @ %06x", realsize&~1, a+(realsize&1), SekPcS68k);\r |
cc68a136 |
231 | \r |
232 | switch (a) {\r |
233 | case 0:\r |
7a1f6e45 |
234 | return ((Pico_mcd->s68k_regs[0]&3)<<8) | 1; // ver = 0, not in reset state\r |
672ad671 |
235 | case 2:\r |
2433f409 |
236 | d = (Pico_mcd->s68k_regs[2]<<8) | (Pico_mcd->s68k_regs[3]&0x1f);\r |
c008977e |
237 | //printf("s68k_regs r3: %02x @%06x\n", (u8)d, SekPcS68k);\r |
2433f409 |
238 | return s68k_poll_detect(a, d);\r |
cc68a136 |
239 | case 6:\r |
7a1f6e45 |
240 | return CDC_Read_Reg();\r |
cc68a136 |
241 | case 8:\r |
7a1f6e45 |
242 | return Read_CDC_Host(1); // Gens returns 0 here on byte reads\r |
cc68a136 |
243 | case 0xC:\r |
4f265db7 |
244 | d = Pico_mcd->m.timer_stopwatch >> 16;\r |
4ff2d527 |
245 | dprintf("s68k stopwatch timer read (%04x)", d);\r |
7a1f6e45 |
246 | return d;\r |
d1df8786 |
247 | case 0x30:\r |
7a1f6e45 |
248 | dprintf("s68k int3 timer read (%02x)", Pico_mcd->s68k_regs[31]);\r |
249 | return Pico_mcd->s68k_regs[31];\r |
cc68a136 |
250 | case 0x34: // fader\r |
7a1f6e45 |
251 | return 0; // no busy bit\r |
913ef4b7 |
252 | case 0x50: // font data (check: Lunar 2, Silpheed)\r |
253 | READ_FONT_DATA(0x00100000);\r |
7a1f6e45 |
254 | return d;\r |
913ef4b7 |
255 | case 0x52:\r |
256 | READ_FONT_DATA(0x00010000);\r |
7a1f6e45 |
257 | return d;\r |
913ef4b7 |
258 | case 0x54:\r |
259 | READ_FONT_DATA(0x10000000);\r |
7a1f6e45 |
260 | return d;\r |
913ef4b7 |
261 | case 0x56:\r |
262 | READ_FONT_DATA(0x01000000);\r |
7a1f6e45 |
263 | return d;\r |
cc68a136 |
264 | }\r |
265 | \r |
266 | d = (Pico_mcd->s68k_regs[a]<<8) | Pico_mcd->s68k_regs[a+1];\r |
267 | \r |
2433f409 |
268 | if (a >= 0x0e && a < 0x30)\r |
269 | return s68k_poll_detect(a, d);\r |
7a1f6e45 |
270 | \r |
cc68a136 |
271 | return d;\r |
272 | }\r |
273 | \r |
4ff2d527 |
274 | #ifndef _ASM_CD_MEMORY_C\r |
275 | static\r |
276 | #endif\r |
277 | void s68k_reg_write8(u32 a, u32 d)\r |
cc68a136 |
278 | {\r |
672ad671 |
279 | //dprintf("s68k_regs w%2i: [%02x] %02x @ %06x", realsize, a, d, SekPcS68k);\r |
cc68a136 |
280 | \r |
48e8482f |
281 | // Warning: d might have upper bits set\r |
cc68a136 |
282 | switch (a) {\r |
672ad671 |
283 | case 2:\r |
284 | return; // only m68k can change WP\r |
fa1e5e29 |
285 | case 3: {\r |
286 | int dold = Pico_mcd->s68k_regs[3];\r |
c008977e |
287 | //printf("s68k_regs w3: %02x @%06x\n", (u8)d, SekPcS68k);\r |
672ad671 |
288 | d &= 0x1d;\r |
4ff2d527 |
289 | d |= dold&0xc2;\r |
d0d47c5b |
290 | if (d&4) {\r |
4ff2d527 |
291 | if ((d ^ dold) & 5) {\r |
292 | d &= ~2; // in case of mode or bank change we clear DMNA (m68k req) bit\r |
4ff2d527 |
293 | PicoMemResetCD(d);\r |
4ff2d527 |
294 | }\r |
48e8482f |
295 | #ifdef _ASM_CD_MEMORY_C\r |
296 | if ((d ^ dold) & 0x1d)\r |
297 | PicoMemResetCDdecode(d);\r |
298 | #endif\r |
fa1e5e29 |
299 | if (!(dold & 4)) {\r |
300 | dprintf("wram mode 2M->1M");\r |
301 | wram_2M_to_1M(Pico_mcd->word_ram2M);\r |
4ff2d527 |
302 | }\r |
d0d47c5b |
303 | } else {\r |
fa1e5e29 |
304 | if (dold & 4) {\r |
305 | dprintf("wram mode 1M->2M");\r |
4ff2d527 |
306 | if (!(d&1)) { // it didn't set the ret bit, which means it doesn't want to give WRAM to m68k\r |
307 | d &= ~3;\r |
308 | d |= (dold&1) ? 2 : 1; // then give it to the one which had bank0 in 1M mode\r |
309 | }\r |
fa1e5e29 |
310 | wram_1M_to_2M(Pico_mcd->word_ram2M);\r |
4ff2d527 |
311 | PicoMemResetCD(d);\r |
4ff2d527 |
312 | }\r |
313 | else\r |
314 | d |= dold&1;\r |
315 | if (d&1) d &= ~2; // return word RAM to m68k in 2M mode\r |
d0d47c5b |
316 | }\r |
672ad671 |
317 | break;\r |
fa1e5e29 |
318 | }\r |
cc68a136 |
319 | case 4:\r |
320 | dprintf("s68k CDC dest: %x", d&7);\r |
321 | Pico_mcd->s68k_regs[4] = (Pico_mcd->s68k_regs[4]&0xC0) | (d&7); // CDC mode\r |
322 | return;\r |
323 | case 5:\r |
c459aefd |
324 | //dprintf("s68k CDC reg addr: %x", d&0xf);\r |
cc68a136 |
325 | break;\r |
326 | case 7:\r |
327 | CDC_Write_Reg(d);\r |
328 | return;\r |
329 | case 0xa:\r |
330 | dprintf("s68k set CDC dma addr");\r |
331 | break;\r |
d1df8786 |
332 | case 0xc:\r |
4f265db7 |
333 | case 0xd:\r |
d1df8786 |
334 | dprintf("s68k set stopwatch timer");\r |
4f265db7 |
335 | Pico_mcd->m.timer_stopwatch = 0;\r |
336 | return;\r |
1cd356a3 |
337 | case 0xe:\r |
7a1f6e45 |
338 | Pico_mcd->s68k_regs[0xf] = (d>>1) | (d<<7); // ror8 1, Gens note: Dragons lair\r |
1cd356a3 |
339 | return;\r |
d1df8786 |
340 | case 0x31:\r |
4f265db7 |
341 | dprintf("s68k set int3 timer: %02x", d);\r |
48e8482f |
342 | Pico_mcd->m.timer_int3 = (d & 0xff) << 16;\r |
d1df8786 |
343 | break;\r |
cc68a136 |
344 | case 0x33: // IRQ mask\r |
345 | dprintf("s68k irq mask: %02x", d);\r |
346 | if ((d&(1<<4)) && (Pico_mcd->s68k_regs[0x37]&4) && !(Pico_mcd->s68k_regs[0x33]&(1<<4))) {\r |
347 | CDD_Export_Status();\r |
cc68a136 |
348 | }\r |
349 | break;\r |
350 | case 0x34: // fader\r |
351 | Pico_mcd->s68k_regs[a] = (u8) d & 0x7f;\r |
352 | return;\r |
672ad671 |
353 | case 0x36:\r |
354 | return; // d/m bit is unsetable\r |
355 | case 0x37: {\r |
356 | u32 d_old = Pico_mcd->s68k_regs[0x37];\r |
357 | Pico_mcd->s68k_regs[0x37] = d&7;\r |
358 | if ((d&4) && !(d_old&4)) {\r |
cc68a136 |
359 | CDD_Export_Status();\r |
cc68a136 |
360 | }\r |
672ad671 |
361 | return;\r |
362 | }\r |
cc68a136 |
363 | case 0x4b:\r |
364 | Pico_mcd->s68k_regs[a] = (u8) d;\r |
365 | CDD_Import_Command();\r |
366 | return;\r |
367 | }\r |
368 | \r |
1cd356a3 |
369 | if ((a&0x1f0) == 0x10 || (a >= 0x38 && a < 0x42))\r |
cc68a136 |
370 | {\r |
ca61ee42 |
371 | elprintf(EL_UIO, "s68k FIXME: invalid write @ %02x?", a);\r |
cc68a136 |
372 | return;\r |
373 | }\r |
374 | \r |
375 | Pico_mcd->s68k_regs[a] = (u8) d;\r |
376 | }\r |
377 | \r |
378 | \r |
fa1e5e29 |
379 | static u32 OtherRead16End(u32 a, int realsize)\r |
cc68a136 |
380 | {\r |
381 | u32 d=0;\r |
382 | \r |
0ffefdb8 |
383 | #ifndef _ASM_CD_MEMORY_C\r |
672ad671 |
384 | if ((a&0xffffc0)==0xa12000) {\r |
cb4a513a |
385 | d=m68k_reg_read16(a);\r |
672ad671 |
386 | goto end;\r |
387 | }\r |
cc68a136 |
388 | \r |
8022f53d |
389 | if (a==0x400000) {\r |
390 | if (SRam.data != NULL) d=3; // 64k cart\r |
391 | goto end;\r |
392 | }\r |
393 | \r |
394 | if ((a&0xfe0000)==0x600000) {\r |
395 | if (SRam.data != NULL) {\r |
396 | d=SRam.data[((a>>1)&0xffff)+0x2000];\r |
397 | if (realsize == 8) d|=d<<8;\r |
398 | }\r |
399 | goto end;\r |
400 | }\r |
401 | \r |
402 | if (a==0x7ffffe) {\r |
403 | d=Pico_mcd->m.bcram_reg;\r |
404 | goto end;\r |
405 | }\r |
0ffefdb8 |
406 | #endif\r |
8022f53d |
407 | \r |
ca61ee42 |
408 | elprintf(EL_UIO, "m68k FIXME: unusual r%i: %06x @%06x", realsize&~1, (a&0xfffffe)+(realsize&1), SekPc);\r |
cc68a136 |
409 | \r |
0ffefdb8 |
410 | #ifndef _ASM_CD_MEMORY_C\r |
cc68a136 |
411 | end:\r |
0ffefdb8 |
412 | #endif\r |
cc68a136 |
413 | return d;\r |
414 | }\r |
415 | \r |
cc68a136 |
416 | \r |
fa1e5e29 |
417 | static void OtherWrite8End(u32 a, u32 d, int realsize)\r |
cc68a136 |
418 | {\r |
0ffefdb8 |
419 | #ifndef _ASM_CD_MEMORY_C\r |
cb4a513a |
420 | if ((a&0xffffc0)==0xa12000) { m68k_reg_write8(a, d); return; }\r |
cc68a136 |
421 | \r |
8022f53d |
422 | if ((a&0xfe0000)==0x600000) {\r |
423 | if (SRam.data != NULL && (Pico_mcd->m.bcram_reg&1)) {\r |
424 | SRam.data[((a>>1)&0xffff)+0x2000]=d;\r |
425 | SRam.changed = 1;\r |
426 | }\r |
427 | return;\r |
428 | }\r |
429 | \r |
430 | if (a==0x7fffff) {\r |
431 | Pico_mcd->m.bcram_reg=d;\r |
432 | return;\r |
433 | }\r |
0ffefdb8 |
434 | #endif\r |
8022f53d |
435 | \r |
ca61ee42 |
436 | elprintf(EL_UIO, "m68k FIXME: strange w%i: [%06x], %08x @%06x", realsize, a&0xffffff, d, SekPc);\r |
cc68a136 |
437 | }\r |
438 | \r |
0ffefdb8 |
439 | #ifndef _ASM_CD_MEMORY_C\r |
69996cb7 |
440 | #define _CD_MEMORY_C\r |
fa1e5e29 |
441 | #undef _ASM_MEMORY_C\r |
442 | #include "../MemoryCmn.c"\r |
4ff2d527 |
443 | #include "cell_map.c"\r |
0ffefdb8 |
444 | #endif\r |
cc68a136 |
445 | \r |
2433f409 |
446 | \r |
cc68a136 |
447 | // -----------------------------------------------------------------\r |
448 | // Read Rom and read Ram\r |
449 | \r |
4ff2d527 |
450 | #ifdef _ASM_CD_MEMORY_C\r |
0af33fe0 |
451 | u32 PicoReadM68k8(u32 a);\r |
4ff2d527 |
452 | #else\r |
81fda4e8 |
453 | u32 PicoReadM68k8(u32 a)\r |
cc68a136 |
454 | {\r |
455 | u32 d=0;\r |
456 | \r |
cc68a136 |
457 | a&=0xffffff;\r |
458 | \r |
b542be46 |
459 | switch (a >> 17)\r |
460 | {\r |
461 | case 0x00>>1: // BIOS: 000000 - 020000\r |
462 | d = *(u8 *)(Pico_mcd->bios+(a^1));\r |
463 | break;\r |
464 | case 0x02>>1: // prg RAM\r |
465 | if ((Pico_mcd->m.busreq&3)!=1) {\r |
466 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
467 | d = *(prg_bank+((a^1)&0x1ffff));\r |
468 | }\r |
469 | break;\r |
470 | case 0x20>>1: // word RAM: 200000 - 220000\r |
471 | wrdprintf("m68k_wram r8: [%06x] @%06x", a, SekPc);\r |
472 | a &= 0x1ffff;\r |
473 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
474 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
475 | d = Pico_mcd->word_ram1M[bank][a^1];\r |
476 | } else {\r |
477 | // allow access in any mode, like Gens does\r |
478 | d = Pico_mcd->word_ram2M[a^1];\r |
479 | }\r |
480 | wrdprintf("ret = %02x", (u8)d);\r |
481 | break;\r |
482 | case 0x22>>1: // word RAM: 220000 - 240000\r |
483 | wrdprintf("m68k_wram r8: [%06x] @%06x", a, SekPc);\r |
484 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
485 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
486 | a = (a&3) | (cell_map(a >> 2) << 2); // cell arranged\r |
487 | d = Pico_mcd->word_ram1M[bank][a^1];\r |
488 | } else {\r |
489 | // allow access in any mode, like Gens does\r |
490 | d = Pico_mcd->word_ram2M[(a^1)&0x3ffff];\r |
491 | }\r |
492 | wrdprintf("ret = %02x", (u8)d);\r |
493 | break;\r |
494 | case 0xc0>>1: case 0xc2>>1: case 0xc4>>1: case 0xc6>>1:\r |
495 | case 0xc8>>1: case 0xca>>1: case 0xcc>>1: case 0xce>>1:\r |
496 | case 0xd0>>1: case 0xd2>>1: case 0xd4>>1: case 0xd6>>1:\r |
497 | case 0xd8>>1: case 0xda>>1: case 0xdc>>1: case 0xde>>1:\r |
498 | // VDP\r |
499 | if ((a&0xe700e0)==0xc00000) {\r |
500 | d=PicoVideoRead(a);\r |
501 | if ((a&1)==0) d>>=8;\r |
502 | }\r |
503 | break;\r |
504 | case 0xe0>>1: case 0xe2>>1: case 0xe4>>1: case 0xe6>>1:\r |
505 | case 0xe8>>1: case 0xea>>1: case 0xec>>1: case 0xee>>1:\r |
506 | case 0xf0>>1: case 0xf2>>1: case 0xf4>>1: case 0xf6>>1:\r |
507 | case 0xf8>>1: case 0xfa>>1: case 0xfc>>1: case 0xfe>>1:\r |
508 | // RAM:\r |
509 | d = *(u8 *)(Pico.ram+((a^1)&0xffff));\r |
510 | break;\r |
511 | default:\r |
512 | if ((a&0xff4000)==0xa00000) { d=z80Read8(a); break; } // Z80 Ram\r |
513 | if ((a&0xffffc0)==0xa12000)\r |
514 | rdprintf("m68k_regs r8: [%02x] @%06x", a&0x3f, SekPc);\r |
cc68a136 |
515 | \r |
b542be46 |
516 | d=OtherRead16(a&~1, 8|(a&1)); if ((a&1)==0) d>>=8;\r |
cc68a136 |
517 | \r |
b542be46 |
518 | if ((a&0xffffc0)==0xa12000)\r |
519 | rdprintf("ret = %02x", (u8)d);\r |
520 | break;\r |
d0d47c5b |
521 | }\r |
522 | \r |
cc68a136 |
523 | \r |
ca61ee42 |
524 | elprintf(EL_IO, "r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPc);\r |
b5e5172d |
525 | #ifdef EMU_CORE_DEBUG\r |
526 | if (a>=Pico.romsize) {\r |
527 | lastread_a = a;\r |
528 | lastread_d[lrp_cyc++&15] = d;\r |
529 | }\r |
cc68a136 |
530 | #endif\r |
0af33fe0 |
531 | return d;\r |
cc68a136 |
532 | }\r |
4ff2d527 |
533 | #endif\r |
cc68a136 |
534 | \r |
ab0607f7 |
535 | \r |
4ff2d527 |
536 | #ifdef _ASM_CD_MEMORY_C\r |
0af33fe0 |
537 | u32 PicoReadM68k16(u32 a);\r |
4ff2d527 |
538 | #else\r |
0af33fe0 |
539 | static u32 PicoReadM68k16(u32 a)\r |
cc68a136 |
540 | {\r |
0af33fe0 |
541 | u32 d=0;\r |
cc68a136 |
542 | \r |
cc68a136 |
543 | a&=0xfffffe;\r |
544 | \r |
b542be46 |
545 | switch (a >> 17)\r |
546 | {\r |
547 | case 0x00>>1: // BIOS: 000000 - 020000\r |
548 | d = *(u16 *)(Pico_mcd->bios+a);\r |
549 | break;\r |
550 | case 0x02>>1: // prg RAM\r |
551 | if ((Pico_mcd->m.busreq&3)!=1) {\r |
552 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
553 | wrdprintf("m68k_prgram r16: [%i,%06x] @%06x", Pico_mcd->s68k_regs[3]>>6, a, SekPc);\r |
554 | d = *(u16 *)(prg_bank+(a&0x1fffe));\r |
555 | wrdprintf("ret = %04x", d);\r |
556 | }\r |
557 | break;\r |
558 | case 0x20>>1: // word RAM: 200000 - 220000\r |
559 | wrdprintf("m68k_wram r16: [%06x] @%06x", a, SekPc);\r |
560 | a &= 0x1fffe;\r |
561 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
562 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
563 | d = *(u16 *)(Pico_mcd->word_ram1M[bank]+a);\r |
564 | } else {\r |
565 | // allow access in any mode, like Gens does\r |
566 | d = *(u16 *)(Pico_mcd->word_ram2M+a);\r |
567 | }\r |
568 | wrdprintf("ret = %04x", d);\r |
569 | break;\r |
570 | case 0x22>>1: // word RAM: 220000 - 240000\r |
571 | wrdprintf("m68k_wram r16: [%06x] @%06x", a, SekPc);\r |
572 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
573 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
574 | a = (a&2) | (cell_map(a >> 2) << 2); // cell arranged\r |
575 | d = *(u16 *)(Pico_mcd->word_ram1M[bank]+a);\r |
576 | } else {\r |
577 | // allow access in any mode, like Gens does\r |
578 | d = *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
579 | }\r |
580 | wrdprintf("ret = %04x", d);\r |
581 | break;\r |
582 | case 0xc0>>1: case 0xc2>>1: case 0xc4>>1: case 0xc6>>1:\r |
583 | case 0xc8>>1: case 0xca>>1: case 0xcc>>1: case 0xce>>1:\r |
584 | case 0xd0>>1: case 0xd2>>1: case 0xd4>>1: case 0xd6>>1:\r |
585 | case 0xd8>>1: case 0xda>>1: case 0xdc>>1: case 0xde>>1:\r |
586 | // VDP\r |
587 | if ((a&0xe700e0)==0xc00000)\r |
588 | d=PicoVideoRead(a);\r |
589 | break;\r |
590 | case 0xe0>>1: case 0xe2>>1: case 0xe4>>1: case 0xe6>>1:\r |
591 | case 0xe8>>1: case 0xea>>1: case 0xec>>1: case 0xee>>1:\r |
592 | case 0xf0>>1: case 0xf2>>1: case 0xf4>>1: case 0xf6>>1:\r |
593 | case 0xf8>>1: case 0xfa>>1: case 0xfc>>1: case 0xfe>>1:\r |
594 | // RAM:\r |
595 | d=*(u16 *)(Pico.ram+(a&0xfffe));\r |
596 | break;\r |
597 | default:\r |
598 | if ((a&0xffffc0)==0xa12000)\r |
599 | rdprintf("m68k_regs r16: [%02x] @%06x", a&0x3f, SekPc);\r |
cc68a136 |
600 | \r |
b542be46 |
601 | d = OtherRead16(a, 16);\r |
cc68a136 |
602 | \r |
b542be46 |
603 | if ((a&0xffffc0)==0xa12000)\r |
604 | rdprintf("ret = %04x", d);\r |
605 | break;\r |
d0d47c5b |
606 | }\r |
607 | \r |
cc68a136 |
608 | \r |
ca61ee42 |
609 | elprintf(EL_IO, "r16: %06x, %04x @%06x", a&0xffffff, d, SekPc);\r |
b5e5172d |
610 | #ifdef EMU_CORE_DEBUG\r |
611 | if (a>=Pico.romsize) {\r |
612 | lastread_a = a;\r |
613 | lastread_d[lrp_cyc++&15] = d;\r |
614 | }\r |
cc68a136 |
615 | #endif\r |
616 | return d;\r |
617 | }\r |
4ff2d527 |
618 | #endif\r |
cc68a136 |
619 | \r |
ab0607f7 |
620 | \r |
4ff2d527 |
621 | #ifdef _ASM_CD_MEMORY_C\r |
622 | u32 PicoReadM68k32(u32 a);\r |
623 | #else\r |
624 | static u32 PicoReadM68k32(u32 a)\r |
cc68a136 |
625 | {\r |
626 | u32 d=0;\r |
627 | \r |
cc68a136 |
628 | a&=0xfffffe;\r |
629 | \r |
b542be46 |
630 | switch (a >> 17)\r |
631 | {\r |
632 | case 0x00>>1: { // BIOS: 000000 - 020000\r |
633 | u16 *pm=(u16 *)(Pico_mcd->bios+a);\r |
634 | d = (pm[0]<<16)|pm[1];\r |
635 | break;\r |
636 | }\r |
637 | case 0x02>>1: // prg RAM\r |
638 | if ((Pico_mcd->m.busreq&3)!=1) {\r |
639 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
640 | u16 *pm=(u16 *)(prg_bank+(a&0x1fffe));\r |
641 | d = (pm[0]<<16)|pm[1];\r |
642 | }\r |
643 | break;\r |
644 | case 0x20>>1: // word RAM: 200000 - 220000\r |
645 | wrdprintf("m68k_wram r32: [%06x] @%06x", a, SekPc);\r |
646 | a&=0x1fffe;\r |
647 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
648 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
649 | u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+a);\r |
650 | d = (pm[0]<<16)|pm[1];\r |
651 | } else {\r |
652 | // allow access in any mode, like Gens does\r |
653 | u16 *pm=(u16 *)(Pico_mcd->word_ram2M+a);\r |
654 | d = (pm[0]<<16)|pm[1];\r |
655 | }\r |
656 | wrdprintf("ret = %08x", d);\r |
657 | break;\r |
658 | case 0x22>>1: // word RAM: 220000 - 240000\r |
659 | wrdprintf("m68k_wram r32: [%06x] @%06x", a, SekPc);\r |
660 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode, cell arranged?\r |
fa1e5e29 |
661 | u32 a1, a2;\r |
b542be46 |
662 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
fa1e5e29 |
663 | a1 = (a&2) | (cell_map(a >> 2) << 2);\r |
4ff2d527 |
664 | if (a&2) a2 = cell_map((a+2) >> 2) << 2;\r |
665 | else a2 = a1 + 2;\r |
666 | d = *(u16 *)(Pico_mcd->word_ram1M[bank]+a1) << 16;\r |
667 | d |= *(u16 *)(Pico_mcd->word_ram1M[bank]+a2);\r |
bf098bc5 |
668 | } else {\r |
b542be46 |
669 | // allow access in any mode, like Gens does\r |
670 | u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
671 | d = (pm[0]<<16)|pm[1];\r |
bf098bc5 |
672 | }\r |
b542be46 |
673 | wrdprintf("ret = %08x", d);\r |
674 | break;\r |
675 | case 0xc0>>1: case 0xc2>>1: case 0xc4>>1: case 0xc6>>1:\r |
676 | case 0xc8>>1: case 0xca>>1: case 0xcc>>1: case 0xce>>1:\r |
677 | case 0xd0>>1: case 0xd2>>1: case 0xd4>>1: case 0xd6>>1:\r |
678 | case 0xd8>>1: case 0xda>>1: case 0xdc>>1: case 0xde>>1:\r |
679 | // VDP\r |
680 | d = (PicoVideoRead(a)<<16)|PicoVideoRead(a+2);\r |
681 | break;\r |
682 | case 0xe0>>1: case 0xe2>>1: case 0xe4>>1: case 0xe6>>1:\r |
683 | case 0xe8>>1: case 0xea>>1: case 0xec>>1: case 0xee>>1:\r |
684 | case 0xf0>>1: case 0xf2>>1: case 0xf4>>1: case 0xf6>>1:\r |
685 | case 0xf8>>1: case 0xfa>>1: case 0xfc>>1: case 0xfe>>1: {\r |
686 | // RAM:\r |
687 | u16 *pm=(u16 *)(Pico.ram+(a&0xfffe));\r |
688 | d = (pm[0]<<16)|pm[1];\r |
689 | break;\r |
d0d47c5b |
690 | }\r |
b542be46 |
691 | default:\r |
692 | if ((a&0xffffc0)==0xa12000)\r |
693 | rdprintf("m68k_regs r32: [%02x] @%06x", a&0x3f, SekPc);\r |
d0d47c5b |
694 | \r |
b542be46 |
695 | d = (OtherRead16(a, 32)<<16)|OtherRead16(a+2, 32);\r |
672ad671 |
696 | \r |
b542be46 |
697 | if ((a&0xffffc0)==0xa12000)\r |
698 | rdprintf("ret = %08x", d);\r |
699 | break;\r |
700 | }\r |
cc68a136 |
701 | \r |
672ad671 |
702 | \r |
ca61ee42 |
703 | elprintf(EL_IO, "r32: %06x, %08x @%06x", a&0xffffff, d, SekPc);\r |
b5e5172d |
704 | #ifdef EMU_CORE_DEBUG\r |
705 | if (a>=Pico.romsize) {\r |
706 | lastread_a = a;\r |
707 | lastread_d[lrp_cyc++&15] = d;\r |
708 | }\r |
cc68a136 |
709 | #endif\r |
710 | return d;\r |
711 | }\r |
4ff2d527 |
712 | #endif\r |
cc68a136 |
713 | \r |
ab0607f7 |
714 | \r |
cc68a136 |
715 | // -----------------------------------------------------------------\r |
cc68a136 |
716 | \r |
4ff2d527 |
717 | #ifdef _ASM_CD_MEMORY_C\r |
718 | void PicoWriteM68k8(u32 a,u8 d);\r |
719 | #else\r |
81fda4e8 |
720 | void PicoWriteM68k8(u32 a,u8 d)\r |
cc68a136 |
721 | {\r |
ca61ee42 |
722 | elprintf(EL_IO, "w8 : %06x, %02x @%06x", a&0xffffff, d, SekPc);\r |
b5e5172d |
723 | #ifdef EMU_CORE_DEBUG\r |
724 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
725 | #endif\r |
cc68a136 |
726 | \r |
ab0607f7 |
727 | if ((a&0xe00000)==0xe00000) { // Ram\r |
728 | *(u8 *)(Pico.ram+((a^1)&0xffff)) = d;\r |
729 | return;\r |
730 | }\r |
cc68a136 |
731 | \r |
cc68a136 |
732 | // prg RAM\r |
721cd396 |
733 | if ((a&0xfe0000)==0x020000 && (Pico_mcd->m.busreq&3)!=1) {\r |
672ad671 |
734 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
bf098bc5 |
735 | *(u8 *)(prg_bank+((a^1)&0x1ffff))=d;\r |
cc68a136 |
736 | return;\r |
737 | }\r |
738 | \r |
b542be46 |
739 | a&=0xffffff;\r |
740 | \r |
d0d47c5b |
741 | // word RAM\r |
742 | if ((a&0xfc0000)==0x200000) {\r |
913ef4b7 |
743 | wrdprintf("m68k_wram w8: [%06x] %02x @%06x", a, d, SekPc);\r |
d0d47c5b |
744 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
fa1e5e29 |
745 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
746 | if (a >= 0x220000)\r |
747 | a = (a&3) | (cell_map(a >> 2) << 2); // cell arranged\r |
748 | else a &= 0x1ffff;\r |
749 | *(u8 *)(Pico_mcd->word_ram1M[bank]+(a^1))=d;\r |
d0d47c5b |
750 | } else {\r |
751 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
752 | *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff))=d;\r |
d0d47c5b |
753 | }\r |
754 | return;\r |
755 | }\r |
756 | \r |
2433f409 |
757 | if ((a&0xffffc0)==0xa12000) {\r |
c459aefd |
758 | rdprintf("m68k_regs w8: [%02x] %02x @%06x", a&0x3f, d, SekPc);\r |
2433f409 |
759 | m68k_reg_write8(a, d);\r |
760 | return;\r |
761 | }\r |
672ad671 |
762 | \r |
fb9bec94 |
763 | OtherWrite8(a,d);\r |
cc68a136 |
764 | }\r |
4ff2d527 |
765 | #endif\r |
cc68a136 |
766 | \r |
ab0607f7 |
767 | \r |
4ff2d527 |
768 | #ifdef _ASM_CD_MEMORY_C\r |
769 | void PicoWriteM68k16(u32 a,u16 d);\r |
770 | #else\r |
771 | static void PicoWriteM68k16(u32 a,u16 d)\r |
cc68a136 |
772 | {\r |
ca61ee42 |
773 | elprintf(EL_IO, "w16: %06x, %04x", a&0xffffff, d);\r |
b5e5172d |
774 | #ifdef EMU_CORE_DEBUG\r |
775 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
776 | #endif\r |
cc68a136 |
777 | \r |
ab0607f7 |
778 | if ((a&0xe00000)==0xe00000) { // Ram\r |
779 | *(u16 *)(Pico.ram+(a&0xfffe))=d;\r |
780 | return;\r |
781 | }\r |
cc68a136 |
782 | \r |
cc68a136 |
783 | // prg RAM\r |
721cd396 |
784 | if ((a&0xfe0000)==0x020000 && (Pico_mcd->m.busreq&3)!=1) {\r |
672ad671 |
785 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
c008977e |
786 | wrdprintf("m68k_prgram w16: [%i,%06x] %04x @%06x", Pico_mcd->s68k_regs[3]>>6, a, d, SekPc);\r |
cc68a136 |
787 | *(u16 *)(prg_bank+(a&0x1fffe))=d;\r |
788 | return;\r |
789 | }\r |
790 | \r |
b542be46 |
791 | a&=0xfffffe;\r |
792 | \r |
d0d47c5b |
793 | // word RAM\r |
794 | if ((a&0xfc0000)==0x200000) {\r |
913ef4b7 |
795 | wrdprintf("m68k_wram w16: [%06x] %04x @%06x", a, d, SekPc);\r |
d0d47c5b |
796 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
fa1e5e29 |
797 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
798 | if (a >= 0x220000)\r |
799 | a = (a&2) | (cell_map(a >> 2) << 2); // cell arranged\r |
800 | else a &= 0x1fffe;\r |
801 | *(u16 *)(Pico_mcd->word_ram1M[bank]+a)=d;\r |
d0d47c5b |
802 | } else {\r |
803 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
804 | *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe))=d;\r |
d0d47c5b |
805 | }\r |
806 | return;\r |
807 | }\r |
808 | \r |
7a1f6e45 |
809 | // regs\r |
810 | if ((a&0xffffc0)==0xa12000) {\r |
c459aefd |
811 | rdprintf("m68k_regs w16: [%02x] %04x @%06x", a&0x3f, d, SekPc);\r |
7a1f6e45 |
812 | if (a == 0xe) { // special case, 2 byte writes would be handled differently\r |
813 | Pico_mcd->s68k_regs[0xe] = d >> 8;\r |
814 | #ifdef USE_POLL_DETECT\r |
815 | if ((s68k_poll_adclk&0xfe) == 0xe && s68k_poll_cnt > POLL_LIMIT) {\r |
6cadc2da |
816 | SekSetStopS68k(0); s68k_poll_adclk = 0;\r |
8f8fe01e |
817 | elprintf(EL_CDPOLL, "s68k poll release, a=%02x", a);\r |
7a1f6e45 |
818 | }\r |
819 | #endif\r |
820 | return;\r |
821 | }\r |
822 | m68k_reg_write8(a, d>>8);\r |
823 | m68k_reg_write8(a+1,d&0xff);\r |
824 | return;\r |
825 | }\r |
cc68a136 |
826 | \r |
b542be46 |
827 | // VDP\r |
828 | if ((a&0xe700e0)==0xc00000) {\r |
829 | PicoVideoWrite(a,(u16)d);\r |
830 | return;\r |
831 | }\r |
832 | \r |
cc68a136 |
833 | OtherWrite16(a,d);\r |
834 | }\r |
4ff2d527 |
835 | #endif\r |
cc68a136 |
836 | \r |
ab0607f7 |
837 | \r |
4ff2d527 |
838 | #ifdef _ASM_CD_MEMORY_C\r |
839 | void PicoWriteM68k32(u32 a,u32 d);\r |
840 | #else\r |
841 | static void PicoWriteM68k32(u32 a,u32 d)\r |
cc68a136 |
842 | {\r |
ca61ee42 |
843 | elprintf(EL_IO, "w32: %06x, %08x", a&0xffffff, d);\r |
b5e5172d |
844 | #ifdef EMU_CORE_DEBUG\r |
845 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
846 | #endif\r |
cc68a136 |
847 | \r |
848 | if ((a&0xe00000)==0xe00000)\r |
849 | {\r |
850 | // Ram:\r |
851 | u16 *pm=(u16 *)(Pico.ram+(a&0xfffe));\r |
852 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
853 | return;\r |
854 | }\r |
855 | \r |
cc68a136 |
856 | // prg RAM\r |
721cd396 |
857 | if ((a&0xfe0000)==0x020000 && (Pico_mcd->m.busreq&3)!=1) {\r |
672ad671 |
858 | u8 *prg_bank = Pico_mcd->prg_ram_b[Pico_mcd->s68k_regs[3]>>6];\r |
cc68a136 |
859 | u16 *pm=(u16 *)(prg_bank+(a&0x1fffe));\r |
860 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
861 | return;\r |
862 | }\r |
863 | \r |
b542be46 |
864 | a&=0xfffffe;\r |
865 | \r |
672ad671 |
866 | // word RAM\r |
d0d47c5b |
867 | if ((a&0xfc0000)==0x200000) {\r |
868 | if (d != 0) // don't log clears\r |
913ef4b7 |
869 | wrdprintf("m68k_wram w32: [%06x] %08x @%06x", a, d, SekPc);\r |
d0d47c5b |
870 | if (Pico_mcd->s68k_regs[3]&4) { // 1M mode?\r |
fa1e5e29 |
871 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
872 | if (a >= 0x220000) { // cell arranged\r |
873 | u32 a1, a2;\r |
874 | a1 = (a&2) | (cell_map(a >> 2) << 2);\r |
4ff2d527 |
875 | if (a&2) a2 = cell_map((a+2) >> 2) << 2;\r |
876 | else a2 = a1 + 2;\r |
877 | *(u16 *)(Pico_mcd->word_ram1M[bank]+a1) = d >> 16;\r |
878 | *(u16 *)(Pico_mcd->word_ram1M[bank]+a2) = d;\r |
bf098bc5 |
879 | } else {\r |
fa1e5e29 |
880 | u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
881 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
bf098bc5 |
882 | }\r |
d0d47c5b |
883 | } else {\r |
884 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
885 | u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
d0d47c5b |
886 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
887 | }\r |
672ad671 |
888 | return;\r |
d0d47c5b |
889 | }\r |
672ad671 |
890 | \r |
2433f409 |
891 | if ((a&0xffffc0)==0xa12000) {\r |
c459aefd |
892 | rdprintf("m68k_regs w32: [%02x] %08x @%06x", a&0x3f, d, SekPc);\r |
2433f409 |
893 | if ((a&0x3e) == 0xe) dprintf("m68k FIXME: w32 [%02x]", a&0x3f);\r |
894 | }\r |
cc68a136 |
895 | \r |
b542be46 |
896 | // VDP\r |
897 | if ((a&0xe700e0)==0xc00000)\r |
898 | {\r |
899 | PicoVideoWrite(a, (u16)(d>>16));\r |
900 | PicoVideoWrite(a+2,(u16)d);\r |
901 | return;\r |
902 | }\r |
903 | \r |
cc68a136 |
904 | OtherWrite16(a, (u16)(d>>16));\r |
905 | OtherWrite16(a+2,(u16)d);\r |
906 | }\r |
4ff2d527 |
907 | #endif\r |
cc68a136 |
908 | \r |
909 | \r |
721cd396 |
910 | // -----------------------------------------------------------------\r |
911 | // S68k\r |
cc68a136 |
912 | // -----------------------------------------------------------------\r |
913 | \r |
4ff2d527 |
914 | #ifdef _ASM_CD_MEMORY_C\r |
0af33fe0 |
915 | u32 PicoReadS68k8(u32 a);\r |
4ff2d527 |
916 | #else\r |
0af33fe0 |
917 | static u32 PicoReadS68k8(u32 a)\r |
cc68a136 |
918 | {\r |
919 | u32 d=0;\r |
920 | \r |
b5e5172d |
921 | #ifdef EMU_CORE_DEBUG\r |
922 | u32 ab=a&0xfffffe;\r |
923 | #endif\r |
cc68a136 |
924 | a&=0xffffff;\r |
925 | \r |
926 | // prg RAM\r |
927 | if (a < 0x80000) {\r |
928 | d = *(Pico_mcd->prg_ram+(a^1));\r |
929 | goto end;\r |
930 | }\r |
931 | \r |
932 | // regs\r |
933 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
934 | a &= 0x1ff;\r |
935 | rdprintf("s68k_regs r8: [%02x] @ %06x", a, SekPcS68k);\r |
2433f409 |
936 | if (a >= 0x0e && a < 0x30) {\r |
937 | d = Pico_mcd->s68k_regs[a];\r |
938 | s68k_poll_detect(a, d);\r |
939 | rdprintf("ret = %02x", (u8)d);\r |
940 | goto end;\r |
941 | }\r |
942 | else if (a >= 0x58 && a < 0x68)\r |
cb4a513a |
943 | d = gfx_cd_read(a&~1);\r |
944 | else d = s68k_reg_read16(a&~1);\r |
945 | if ((a&1)==0) d>>=8;\r |
c459aefd |
946 | rdprintf("ret = %02x", (u8)d);\r |
cc68a136 |
947 | goto end;\r |
948 | }\r |
949 | \r |
d0d47c5b |
950 | // word RAM (2M area)\r |
951 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
fa1e5e29 |
952 | // test: batman returns\r |
913ef4b7 |
953 | wrdprintf("s68k_wram2M r8: [%06x] @%06x", a, SekPcS68k);\r |
fa1e5e29 |
954 | if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode?\r |
3aa1e148 |
955 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
956 | d = Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff];\r |
957 | if (a&1) d &= 0x0f;\r |
958 | else d >>= 4;\r |
d0d47c5b |
959 | } else {\r |
960 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
961 | d = Pico_mcd->word_ram2M[(a^1)&0x3ffff];\r |
d0d47c5b |
962 | }\r |
913ef4b7 |
963 | wrdprintf("ret = %02x", (u8)d);\r |
d0d47c5b |
964 | goto end;\r |
965 | }\r |
966 | \r |
967 | // word RAM (1M area)\r |
68cba51e |
968 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
fa1e5e29 |
969 | int bank;\r |
913ef4b7 |
970 | wrdprintf("s68k_wram1M r8: [%06x] @%06x", a, SekPcS68k);\r |
68cba51e |
971 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
972 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
973 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
974 | d = Pico_mcd->word_ram1M[bank][(a^1)&0x1ffff];\r |
913ef4b7 |
975 | wrdprintf("ret = %02x", (u8)d);\r |
d0d47c5b |
976 | goto end;\r |
977 | }\r |
978 | \r |
4f265db7 |
979 | // PCM\r |
980 | if ((a&0xff8000)==0xff0000) {\r |
ca61ee42 |
981 | elprintf(EL_IO, "s68k_pcm r8: [%06x] @%06x", a, SekPcS68k);\r |
4f265db7 |
982 | a &= 0x7fff;\r |
983 | if (a >= 0x2000)\r |
984 | d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff];\r |
985 | else if (a >= 0x20) {\r |
986 | a &= 0x1e;\r |
987 | d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;\r |
988 | if (a & 2) d >>= 8;\r |
989 | }\r |
ca61ee42 |
990 | elprintf(EL_IO, "ret = %02x", (u8)d);\r |
4f265db7 |
991 | goto end;\r |
992 | }\r |
993 | \r |
ab0607f7 |
994 | // bram\r |
995 | if ((a&0xff0000)==0xfe0000) {\r |
996 | d = Pico_mcd->bram[(a>>1)&0x1fff];\r |
997 | goto end;\r |
998 | }\r |
999 | \r |
ca61ee42 |
1000 | elprintf(EL_UIO, "s68k r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPcS68k);\r |
cc68a136 |
1001 | \r |
1002 | end:\r |
1003 | \r |
ca61ee42 |
1004 | elprintf(EL_IO, "s68k r8 : %06x, %02x @%06x", a&0xffffff, (u8)d, SekPcS68k);\r |
b5e5172d |
1005 | #ifdef EMU_CORE_DEBUG\r |
1006 | lastread_a = ab;\r |
1007 | lastread_d[lrp_cyc++&15] = d;\r |
cc68a136 |
1008 | #endif\r |
0af33fe0 |
1009 | return d;\r |
cc68a136 |
1010 | }\r |
4ff2d527 |
1011 | #endif\r |
cc68a136 |
1012 | \r |
ab0607f7 |
1013 | \r |
4ff2d527 |
1014 | #ifdef _ASM_CD_MEMORY_C\r |
0af33fe0 |
1015 | u32 PicoReadS68k16(u32 a);\r |
4ff2d527 |
1016 | #else\r |
0af33fe0 |
1017 | static u32 PicoReadS68k16(u32 a)\r |
cc68a136 |
1018 | {\r |
4f265db7 |
1019 | u32 d=0;\r |
cc68a136 |
1020 | \r |
b5e5172d |
1021 | #ifdef EMU_CORE_DEBUG\r |
1022 | u32 ab=a&0xfffffe;\r |
1023 | #endif\r |
cc68a136 |
1024 | a&=0xfffffe;\r |
1025 | \r |
1026 | // prg RAM\r |
1027 | if (a < 0x80000) {\r |
c008977e |
1028 | wrdprintf("s68k_prgram r16: [%06x] @%06x", a, SekPcS68k);\r |
cc68a136 |
1029 | d = *(u16 *)(Pico_mcd->prg_ram+a);\r |
c008977e |
1030 | wrdprintf("ret = %04x", d);\r |
cc68a136 |
1031 | goto end;\r |
1032 | }\r |
1033 | \r |
1034 | // regs\r |
1035 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
1036 | a &= 0x1fe;\r |
1037 | rdprintf("s68k_regs r16: [%02x] @ %06x", a, SekPcS68k);\r |
913ef4b7 |
1038 | if (a >= 0x58 && a < 0x68)\r |
cb4a513a |
1039 | d = gfx_cd_read(a);\r |
1040 | else d = s68k_reg_read16(a);\r |
c459aefd |
1041 | rdprintf("ret = %04x", d);\r |
cc68a136 |
1042 | goto end;\r |
1043 | }\r |
1044 | \r |
d0d47c5b |
1045 | // word RAM (2M area)\r |
1046 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
913ef4b7 |
1047 | wrdprintf("s68k_wram2M r16: [%06x] @%06x", a, SekPcS68k);\r |
fa1e5e29 |
1048 | if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode?\r |
3aa1e148 |
1049 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1050 | d = Pico_mcd->word_ram1M[bank][((a>>1)^1)&0x1ffff];\r |
1051 | d |= d << 4; d &= ~0xf0;\r |
d0d47c5b |
1052 | } else {\r |
1053 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
1054 | d = *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
d0d47c5b |
1055 | }\r |
913ef4b7 |
1056 | wrdprintf("ret = %04x", d);\r |
d0d47c5b |
1057 | goto end;\r |
1058 | }\r |
1059 | \r |
1060 | // word RAM (1M area)\r |
68cba51e |
1061 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
fa1e5e29 |
1062 | int bank;\r |
913ef4b7 |
1063 | wrdprintf("s68k_wram1M r16: [%06x] @%06x", a, SekPcS68k);\r |
68cba51e |
1064 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
1065 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
1066 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1067 | d = *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
913ef4b7 |
1068 | wrdprintf("ret = %04x", d);\r |
ab0607f7 |
1069 | goto end;\r |
1070 | }\r |
1071 | \r |
1072 | // bram\r |
1073 | if ((a&0xff0000)==0xfe0000) {\r |
4ff2d527 |
1074 | dprintf("FIXME: s68k_bram r16: [%06x] @%06x", a, SekPcS68k);\r |
ab0607f7 |
1075 | a = (a>>1)&0x1fff;\r |
4f265db7 |
1076 | d = Pico_mcd->bram[a++]; // Gens does little endian here, and so do we..\r |
4ff2d527 |
1077 | d|= Pico_mcd->bram[a++] << 8; // This is most likely wrong\r |
ab0607f7 |
1078 | dprintf("ret = %04x", d);\r |
d0d47c5b |
1079 | goto end;\r |
1080 | }\r |
1081 | \r |
4f265db7 |
1082 | // PCM\r |
1083 | if ((a&0xff8000)==0xff0000) {\r |
4ff2d527 |
1084 | dprintf("FIXME: s68k_pcm r16: [%06x] @%06x", a, SekPcS68k);\r |
4f265db7 |
1085 | a &= 0x7fff;\r |
1086 | if (a >= 0x2000)\r |
1087 | d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff];\r |
1088 | else if (a >= 0x20) {\r |
1089 | a &= 0x1e;\r |
1090 | d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;\r |
1091 | if (a & 2) d >>= 8;\r |
1092 | }\r |
1093 | dprintf("ret = %04x", d);\r |
1094 | goto end;\r |
1095 | }\r |
1096 | \r |
ca61ee42 |
1097 | elprintf(EL_UIO, "s68k r16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1098 | \r |
1099 | end:\r |
1100 | \r |
ca61ee42 |
1101 | elprintf(EL_IO, "s68k r16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);\r |
b5e5172d |
1102 | #ifdef EMU_CORE_DEBUG\r |
1103 | lastread_a = ab;\r |
1104 | lastread_d[lrp_cyc++&15] = d;\r |
cc68a136 |
1105 | #endif\r |
1106 | return d;\r |
1107 | }\r |
4ff2d527 |
1108 | #endif\r |
cc68a136 |
1109 | \r |
ab0607f7 |
1110 | \r |
4ff2d527 |
1111 | #ifdef _ASM_CD_MEMORY_C\r |
1112 | u32 PicoReadS68k32(u32 a);\r |
1113 | #else\r |
1114 | static u32 PicoReadS68k32(u32 a)\r |
cc68a136 |
1115 | {\r |
1116 | u32 d=0;\r |
1117 | \r |
b5e5172d |
1118 | #ifdef EMU_CORE_DEBUG\r |
1119 | u32 ab=a&0xfffffe;\r |
1120 | #endif\r |
cc68a136 |
1121 | a&=0xfffffe;\r |
1122 | \r |
1123 | // prg RAM\r |
1124 | if (a < 0x80000) {\r |
1125 | u16 *pm=(u16 *)(Pico_mcd->prg_ram+a);\r |
1126 | d = (pm[0]<<16)|pm[1];\r |
1127 | goto end;\r |
1128 | }\r |
1129 | \r |
1130 | // regs\r |
1131 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
1132 | a &= 0x1fe;\r |
1133 | rdprintf("s68k_regs r32: [%02x] @ %06x", a, SekPcS68k);\r |
913ef4b7 |
1134 | if (a >= 0x58 && a < 0x68)\r |
cb4a513a |
1135 | d = (gfx_cd_read(a)<<16)|gfx_cd_read(a+2);\r |
1136 | else d = (s68k_reg_read16(a)<<16)|s68k_reg_read16(a+2);\r |
c459aefd |
1137 | rdprintf("ret = %08x", d);\r |
cc68a136 |
1138 | goto end;\r |
1139 | }\r |
1140 | \r |
d0d47c5b |
1141 | // word RAM (2M area)\r |
1142 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
913ef4b7 |
1143 | wrdprintf("s68k_wram2M r32: [%06x] @%06x", a, SekPcS68k);\r |
fa1e5e29 |
1144 | if (Pico_mcd->s68k_regs[3]&4) { // 1M decode mode?\r |
3aa1e148 |
1145 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1146 | a >>= 1;\r |
1147 | d = Pico_mcd->word_ram1M[bank][((a+0)^1)&0x1ffff] << 16;\r |
1148 | d |= Pico_mcd->word_ram1M[bank][((a+1)^1)&0x1ffff];\r |
1149 | d |= d << 4; d &= 0x0f0f0f0f;\r |
d0d47c5b |
1150 | } else {\r |
1151 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
1152 | u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); d = (pm[0]<<16)|pm[1];\r |
d0d47c5b |
1153 | }\r |
913ef4b7 |
1154 | wrdprintf("ret = %08x", d);\r |
d0d47c5b |
1155 | goto end;\r |
1156 | }\r |
1157 | \r |
1158 | // word RAM (1M area)\r |
68cba51e |
1159 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
fa1e5e29 |
1160 | int bank;\r |
913ef4b7 |
1161 | wrdprintf("s68k_wram1M r32: [%06x] @%06x", a, SekPcS68k);\r |
68cba51e |
1162 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
1163 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
1164 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1165 | u16 *pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe)); d = (pm[0]<<16)|pm[1];\r |
913ef4b7 |
1166 | wrdprintf("ret = %08x", d);\r |
ab0607f7 |
1167 | goto end;\r |
1168 | }\r |
1169 | \r |
4f265db7 |
1170 | // PCM\r |
1171 | if ((a&0xff8000)==0xff0000) {\r |
2433f409 |
1172 | dprintf("s68k_pcm r32: [%06x] @%06x", a, SekPcS68k);\r |
4f265db7 |
1173 | a &= 0x7fff;\r |
1174 | if (a >= 0x2000) {\r |
1175 | a >>= 1;\r |
1176 | d = Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][a&0xfff] << 16;\r |
1177 | d |= Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a+1)&0xfff];\r |
1178 | } else if (a >= 0x20) {\r |
1179 | a &= 0x1e;\r |
1180 | if (a & 2) {\r |
1181 | a >>= 2;\r |
1182 | d = (Pico_mcd->pcm.ch[a].addr >> (PCM_STEP_SHIFT-8)) & 0xff0000;\r |
1183 | d |= (Pico_mcd->pcm.ch[(a+1)&7].addr >> PCM_STEP_SHIFT) & 0xff;\r |
1184 | } else {\r |
1185 | d = Pico_mcd->pcm.ch[a>>2].addr >> PCM_STEP_SHIFT;\r |
1186 | d = ((d<<16)&0xff0000) | ((d>>8)&0xff); // PCM chip is LE\r |
1187 | }\r |
1188 | }\r |
1189 | dprintf("ret = %08x", d);\r |
1190 | goto end;\r |
1191 | }\r |
1192 | \r |
ab0607f7 |
1193 | // bram\r |
1194 | if ((a&0xff0000)==0xfe0000) {\r |
4ff2d527 |
1195 | dprintf("FIXME: s68k_bram r32: [%06x] @%06x", a, SekPcS68k);\r |
ab0607f7 |
1196 | a = (a>>1)&0x1fff;\r |
1197 | d = Pico_mcd->bram[a++] << 16; // middle endian? TODO: verify against Fusion..\r |
1198 | d|= Pico_mcd->bram[a++] << 24;\r |
1199 | d|= Pico_mcd->bram[a++];\r |
1200 | d|= Pico_mcd->bram[a++] << 8;\r |
1201 | dprintf("ret = %08x", d);\r |
d0d47c5b |
1202 | goto end;\r |
1203 | }\r |
1204 | \r |
ca61ee42 |
1205 | elprintf(EL_UIO, "s68k r32: %06x, %08x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1206 | \r |
1207 | end:\r |
1208 | \r |
ca61ee42 |
1209 | elprintf(EL_IO, "s68k r32: %06x, %08x @%06x", a&0xffffff, d, SekPcS68k);\r |
b5e5172d |
1210 | #ifdef EMU_CORE_DEBUG\r |
1211 | if (ab > 0x78) { // not vectors and stuff\r |
1212 | lastread_a = ab;\r |
1213 | lastread_d[lrp_cyc++&15] = d;\r |
1214 | }\r |
cc68a136 |
1215 | #endif\r |
1216 | return d;\r |
1217 | }\r |
4ff2d527 |
1218 | #endif\r |
cc68a136 |
1219 | \r |
ab0607f7 |
1220 | \r |
a4030801 |
1221 | #ifndef _ASM_CD_MEMORY_C\r |
0a051f55 |
1222 | /* check: jaguar xj 220 (draws entire world using decode) */\r |
1223 | static void decode_write8(u32 a, u8 d, int r3)\r |
1224 | {\r |
3aa1e148 |
1225 | u8 *pd = Pico_mcd->word_ram1M[(r3 & 1)^1] + (((a>>1)^1)&0x1ffff);\r |
0a051f55 |
1226 | u8 oldmask = (a&1) ? 0xf0 : 0x0f;\r |
1227 | \r |
0a051f55 |
1228 | r3 &= 0x18;\r |
1229 | d &= 0x0f;\r |
1230 | if (!(a&1)) d <<= 4;\r |
1231 | \r |
0a051f55 |
1232 | if (r3 == 8) {\r |
1233 | if ((!(*pd & (~oldmask))) && d) goto do_it;\r |
1234 | } else if (r3 > 8) {\r |
1235 | if (d) goto do_it;\r |
1236 | } else {\r |
1237 | goto do_it;\r |
1238 | }\r |
1239 | \r |
1240 | return;\r |
1241 | do_it:\r |
1242 | *pd = d | (*pd & oldmask);\r |
1243 | }\r |
1244 | \r |
1245 | \r |
1246 | static void decode_write16(u32 a, u16 d, int r3)\r |
1247 | {\r |
3aa1e148 |
1248 | u8 *pd = Pico_mcd->word_ram1M[(r3 & 1)^1] + (((a>>1)^1)&0x1ffff);\r |
0a051f55 |
1249 | \r |
1250 | //if ((a & 0x3ffff) < 0x28000) return;\r |
1251 | \r |
1252 | r3 &= 0x18;\r |
1253 | d &= 0x0f0f;\r |
1254 | d |= d >> 4;\r |
1255 | \r |
1256 | if (r3 == 8) {\r |
1257 | u8 dold = *pd;\r |
1258 | if (!(dold & 0xf0)) dold |= d & 0xf0;\r |
1259 | if (!(dold & 0x0f)) dold |= d & 0x0f;\r |
1260 | *pd = dold;\r |
1261 | } else if (r3 > 8) {\r |
1262 | u8 dold = *pd;\r |
1263 | if (!(d & 0xf0)) d |= dold & 0xf0;\r |
1264 | if (!(d & 0x0f)) d |= dold & 0x0f;\r |
1265 | *pd = d;\r |
1266 | } else {\r |
1267 | *pd = d;\r |
1268 | }\r |
0a051f55 |
1269 | }\r |
a4030801 |
1270 | #endif\r |
0a051f55 |
1271 | \r |
cc68a136 |
1272 | // -----------------------------------------------------------------\r |
1273 | \r |
4ff2d527 |
1274 | #ifdef _ASM_CD_MEMORY_C\r |
1275 | void PicoWriteS68k8(u32 a,u8 d);\r |
1276 | #else\r |
1277 | static void PicoWriteS68k8(u32 a,u8 d)\r |
cc68a136 |
1278 | {\r |
ca61ee42 |
1279 | elprintf(EL_IO, "s68k w8 : %06x, %02x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1280 | \r |
1281 | a&=0xffffff;\r |
1282 | \r |
b5e5172d |
1283 | #ifdef EMU_CORE_DEBUG\r |
1284 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
1285 | #endif\r |
1286 | \r |
cc68a136 |
1287 | // prg RAM\r |
1288 | if (a < 0x80000) {\r |
1289 | u8 *pm=(u8 *)(Pico_mcd->prg_ram+(a^1));\r |
721cd396 |
1290 | if (a >= (Pico_mcd->s68k_regs[2]<<8)) *pm=d;\r |
cc68a136 |
1291 | return;\r |
1292 | }\r |
1293 | \r |
1294 | // regs\r |
1295 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
1296 | a &= 0x1ff;\r |
1297 | rdprintf("s68k_regs w8: [%02x] %02x @ %06x", a, d, SekPcS68k);\r |
913ef4b7 |
1298 | if (a >= 0x58 && a < 0x68)\r |
48e8482f |
1299 | gfx_cd_write16(a&~1, (d<<8)|d);\r |
cb4a513a |
1300 | else s68k_reg_write8(a,d);\r |
cc68a136 |
1301 | return;\r |
1302 | }\r |
1303 | \r |
d0d47c5b |
1304 | // word RAM (2M area)\r |
1305 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
0a051f55 |
1306 | int r3 = Pico_mcd->s68k_regs[3];\r |
913ef4b7 |
1307 | wrdprintf("s68k_wram2M w8: [%06x] %02x @%06x", a, d, SekPcS68k);\r |
0a051f55 |
1308 | if (r3 & 4) { // 1M decode mode?\r |
1309 | decode_write8(a, d, r3);\r |
d0d47c5b |
1310 | } else {\r |
1311 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
1312 | *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff))=d;\r |
d0d47c5b |
1313 | }\r |
1314 | return;\r |
1315 | }\r |
1316 | \r |
1317 | // word RAM (1M area)\r |
68cba51e |
1318 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
1319 | // Wing Commander tries to write here in wrong mode\r |
fa1e5e29 |
1320 | int bank;\r |
d0d47c5b |
1321 | if (d)\r |
913ef4b7 |
1322 | wrdprintf("s68k_wram1M w8: [%06x] %02x @%06x", a, d, SekPcS68k);\r |
68cba51e |
1323 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
1324 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
1325 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1326 | *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff))=d;\r |
d0d47c5b |
1327 | return;\r |
1328 | }\r |
1329 | \r |
4f265db7 |
1330 | // PCM\r |
1331 | if ((a&0xff8000)==0xff0000) {\r |
1332 | a &= 0x7fff;\r |
1333 | if (a >= 0x2000)\r |
1334 | Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff] = d;\r |
1335 | else if (a < 0x12)\r |
1336 | pcm_write(a>>1, d);\r |
1337 | return;\r |
1338 | }\r |
1339 | \r |
ab0607f7 |
1340 | // bram\r |
1341 | if ((a&0xff0000)==0xfe0000) {\r |
1342 | Pico_mcd->bram[(a>>1)&0x1fff] = d;\r |
1343 | SRam.changed = 1;\r |
1344 | return;\r |
1345 | }\r |
1346 | \r |
ca61ee42 |
1347 | elprintf(EL_UIO, "s68k w8 : %06x, %02x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1348 | }\r |
4ff2d527 |
1349 | #endif\r |
cc68a136 |
1350 | \r |
ab0607f7 |
1351 | \r |
4ff2d527 |
1352 | #ifdef _ASM_CD_MEMORY_C\r |
1353 | void PicoWriteS68k16(u32 a,u16 d);\r |
1354 | #else\r |
1355 | static void PicoWriteS68k16(u32 a,u16 d)\r |
cc68a136 |
1356 | {\r |
ca61ee42 |
1357 | elprintf(EL_IO, "s68k w16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1358 | \r |
1359 | a&=0xfffffe;\r |
1360 | \r |
b5e5172d |
1361 | #ifdef EMU_CORE_DEBUG\r |
1362 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
1363 | #endif\r |
1364 | \r |
cc68a136 |
1365 | // prg RAM\r |
1366 | if (a < 0x80000) {\r |
c008977e |
1367 | wrdprintf("s68k_prgram w16: [%06x] %04x @%06x", a, d, SekPcS68k);\r |
721cd396 |
1368 | if (a >= (Pico_mcd->s68k_regs[2]<<8)) // needed for Dungeon Explorer\r |
1369 | *(u16 *)(Pico_mcd->prg_ram+a)=d;\r |
cc68a136 |
1370 | return;\r |
1371 | }\r |
1372 | \r |
1373 | // regs\r |
1374 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
1375 | a &= 0x1fe;\r |
1376 | rdprintf("s68k_regs w16: [%02x] %04x @ %06x", a, d, SekPcS68k);\r |
913ef4b7 |
1377 | if (a >= 0x58 && a < 0x68)\r |
48e8482f |
1378 | gfx_cd_write16(a, d);\r |
cb4a513a |
1379 | else {\r |
1cd356a3 |
1380 | if (a == 0xe) { // special case, 2 byte writes would be handled differently\r |
1381 | Pico_mcd->s68k_regs[0xf] = d;\r |
4ff2d527 |
1382 | return;\r |
1cd356a3 |
1383 | }\r |
cb4a513a |
1384 | s68k_reg_write8(a, d>>8);\r |
1385 | s68k_reg_write8(a+1,d&0xff);\r |
1386 | }\r |
cc68a136 |
1387 | return;\r |
1388 | }\r |
1389 | \r |
d0d47c5b |
1390 | // word RAM (2M area)\r |
1391 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
0a051f55 |
1392 | int r3 = Pico_mcd->s68k_regs[3];\r |
913ef4b7 |
1393 | wrdprintf("s68k_wram2M w16: [%06x] %04x @%06x", a, d, SekPcS68k);\r |
0a051f55 |
1394 | if (r3 & 4) { // 1M decode mode?\r |
1395 | decode_write16(a, d, r3);\r |
d0d47c5b |
1396 | } else {\r |
1397 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
1398 | *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe))=d;\r |
d0d47c5b |
1399 | }\r |
1400 | return;\r |
1401 | }\r |
1402 | \r |
1403 | // word RAM (1M area)\r |
68cba51e |
1404 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
fa1e5e29 |
1405 | int bank;\r |
d0d47c5b |
1406 | if (d)\r |
913ef4b7 |
1407 | wrdprintf("s68k_wram1M w16: [%06x] %04x @%06x", a, d, SekPcS68k);\r |
68cba51e |
1408 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
1409 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
1410 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1411 | *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe))=d;\r |
d0d47c5b |
1412 | return;\r |
1413 | }\r |
1414 | \r |
4f265db7 |
1415 | // PCM\r |
1416 | if ((a&0xff8000)==0xff0000) {\r |
1417 | a &= 0x7fff;\r |
1418 | if (a >= 0x2000)\r |
1419 | Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a>>1)&0xfff] = d;\r |
1420 | else if (a < 0x12)\r |
1421 | pcm_write(a>>1, d & 0xff);\r |
1422 | return;\r |
1423 | }\r |
1424 | \r |
ab0607f7 |
1425 | // bram\r |
1426 | if ((a&0xff0000)==0xfe0000) {\r |
1cd356a3 |
1427 | dprintf("s68k_bram w16: [%06x] %04x @%06x", a, d, SekPcS68k);\r |
ab0607f7 |
1428 | a = (a>>1)&0x1fff;\r |
1429 | Pico_mcd->bram[a++] = d; // Gens does little endian here, an so do we..\r |
1430 | Pico_mcd->bram[a++] = d >> 8;\r |
1431 | SRam.changed = 1;\r |
1432 | return;\r |
1433 | }\r |
1434 | \r |
ca61ee42 |
1435 | elprintf(EL_UIO, "s68k w16: %06x, %04x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1436 | }\r |
4ff2d527 |
1437 | #endif\r |
cc68a136 |
1438 | \r |
ab0607f7 |
1439 | \r |
4ff2d527 |
1440 | #ifdef _ASM_CD_MEMORY_C\r |
1441 | void PicoWriteS68k32(u32 a,u32 d);\r |
1442 | #else\r |
1443 | static void PicoWriteS68k32(u32 a,u32 d)\r |
cc68a136 |
1444 | {\r |
ca61ee42 |
1445 | elprintf(EL_IO, "s68k w32: %06x, %08x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1446 | \r |
1447 | a&=0xfffffe;\r |
1448 | \r |
b5e5172d |
1449 | #ifdef EMU_CORE_DEBUG\r |
1450 | lastwrite_cyc_d[lwp_cyc++&15] = d;\r |
1451 | #endif\r |
1452 | \r |
cc68a136 |
1453 | // prg RAM\r |
1454 | if (a < 0x80000) {\r |
721cd396 |
1455 | if (a >= (Pico_mcd->s68k_regs[2]<<8)) {\r |
1456 | u16 *pm=(u16 *)(Pico_mcd->prg_ram+a);\r |
1457 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
1458 | }\r |
cc68a136 |
1459 | return;\r |
1460 | }\r |
1461 | \r |
1462 | // regs\r |
1463 | if ((a&0xfffe00) == 0xff8000) {\r |
cb4a513a |
1464 | a &= 0x1fe;\r |
1465 | rdprintf("s68k_regs w32: [%02x] %08x @ %06x", a, d, SekPcS68k);\r |
913ef4b7 |
1466 | if (a >= 0x58 && a < 0x68) {\r |
48e8482f |
1467 | gfx_cd_write16(a, d>>16);\r |
1468 | gfx_cd_write16(a+2, d&0xffff);\r |
cb4a513a |
1469 | } else {\r |
2433f409 |
1470 | if ((a&0x1fe) == 0xe) dprintf("s68k FIXME: w32 [%02x]", a&0x3f);\r |
cb4a513a |
1471 | s68k_reg_write8(a, d>>24);\r |
1472 | s68k_reg_write8(a+1,(d>>16)&0xff);\r |
1473 | s68k_reg_write8(a+2,(d>>8) &0xff);\r |
1474 | s68k_reg_write8(a+3, d &0xff);\r |
1475 | }\r |
cc68a136 |
1476 | return;\r |
1477 | }\r |
1478 | \r |
d0d47c5b |
1479 | // word RAM (2M area)\r |
1480 | if ((a&0xfc0000)==0x080000) { // 080000-0bffff\r |
0a051f55 |
1481 | int r3 = Pico_mcd->s68k_regs[3];\r |
913ef4b7 |
1482 | wrdprintf("s68k_wram2M w32: [%06x] %08x @%06x", a, d, SekPcS68k);\r |
0a051f55 |
1483 | if (r3 & 4) { // 1M decode mode?\r |
1484 | decode_write16(a , d >> 16, r3);\r |
1485 | decode_write16(a+2, d , r3);\r |
d0d47c5b |
1486 | } else {\r |
1487 | // allow access in any mode, like Gens does\r |
fa1e5e29 |
1488 | u16 *pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
d0d47c5b |
1489 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
1490 | }\r |
1491 | return;\r |
1492 | }\r |
1493 | \r |
1494 | // word RAM (1M area)\r |
68cba51e |
1495 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // 0c0000-0dffff\r |
fa1e5e29 |
1496 | int bank;\r |
1497 | u16 *pm;\r |
d0d47c5b |
1498 | if (d)\r |
913ef4b7 |
1499 | wrdprintf("s68k_wram1M w32: [%06x] %08x @%06x", a, d, SekPcS68k);\r |
68cba51e |
1500 | // if (!(Pico_mcd->s68k_regs[3]&4))\r |
1501 | // dprintf("s68k_wram1M FIXME: wrong mode");\r |
3aa1e148 |
1502 | bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1503 | pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
1504 | pm[0]=(u16)(d>>16); pm[1]=(u16)d;\r |
d0d47c5b |
1505 | return;\r |
1506 | }\r |
ab0607f7 |
1507 | \r |
4f265db7 |
1508 | // PCM\r |
1509 | if ((a&0xff8000)==0xff0000) {\r |
1510 | a &= 0x7fff;\r |
1511 | if (a >= 0x2000) {\r |
1512 | a >>= 1;\r |
1513 | Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][a&0xfff] = (d >> 16);\r |
1514 | Pico_mcd->pcm_ram_b[Pico_mcd->pcm.bank][(a+1)&0xfff] = d;\r |
1515 | } else if (a < 0x12) {\r |
1516 | a >>= 1;\r |
1517 | pcm_write(a, (d>>16) & 0xff);\r |
1518 | pcm_write(a+1, d & 0xff);\r |
1519 | }\r |
1520 | return;\r |
1521 | }\r |
1522 | \r |
ab0607f7 |
1523 | // bram\r |
1524 | if ((a&0xff0000)==0xfe0000) {\r |
1cd356a3 |
1525 | dprintf("s68k_bram w32: [%06x] %08x @%06x", a, d, SekPcS68k);\r |
ab0607f7 |
1526 | a = (a>>1)&0x1fff;\r |
1527 | Pico_mcd->bram[a++] = d >> 16; // middle endian? verify?\r |
1528 | Pico_mcd->bram[a++] = d >> 24;\r |
1529 | Pico_mcd->bram[a++] = d;\r |
1530 | Pico_mcd->bram[a++] = d >> 8;\r |
1531 | SRam.changed = 1;\r |
1532 | return;\r |
1533 | }\r |
1534 | \r |
ca61ee42 |
1535 | elprintf(EL_UIO, "s68k w32: %06x, %08x @%06x", a&0xffffff, d, SekPcS68k);\r |
cc68a136 |
1536 | }\r |
4ff2d527 |
1537 | #endif\r |
cc68a136 |
1538 | \r |
1539 | \r |
1540 | // -----------------------------------------------------------------\r |
1541 | \r |
b837b69b |
1542 | \r |
3aa1e148 |
1543 | #ifdef EMU_C68K\r |
b837b69b |
1544 | static __inline int PicoMemBaseM68k(u32 pc)\r |
1545 | {\r |
fa1e5e29 |
1546 | if ((pc&0xe00000)==0xe00000)\r |
1547 | return (int)Pico.ram-(pc&0xff0000); // Program Counter in Ram\r |
b837b69b |
1548 | \r |
1549 | if (pc < 0x20000)\r |
fa1e5e29 |
1550 | return (int)Pico_mcd->bios; // Program Counter in BIOS\r |
1551 | \r |
1552 | if ((pc&0xfc0000)==0x200000)\r |
b837b69b |
1553 | {\r |
fa1e5e29 |
1554 | if (!(Pico_mcd->s68k_regs[3]&4))\r |
1555 | return (int)Pico_mcd->word_ram2M - 0x200000; // Program Counter in Word Ram\r |
1556 | if (pc < 0x220000) {\r |
3aa1e148 |
1557 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
fa1e5e29 |
1558 | return (int)Pico_mcd->word_ram1M[bank] - 0x200000;\r |
1559 | }\r |
b837b69b |
1560 | }\r |
1561 | \r |
fa1e5e29 |
1562 | // Error - Program Counter is invalid\r |
ca61ee42 |
1563 | elprintf(EL_ANOMALY, "m68k FIXME: unhandled jump to %06x", pc);\r |
fa1e5e29 |
1564 | \r |
1565 | return (int)Pico_mcd->bios;\r |
b837b69b |
1566 | }\r |
1567 | \r |
1568 | \r |
1569 | static u32 PicoCheckPcM68k(u32 pc)\r |
1570 | {\r |
3aa1e148 |
1571 | pc-=PicoCpuCM68k.membase; // Get real pc\r |
b837b69b |
1572 | pc&=0xfffffe;\r |
1573 | \r |
3aa1e148 |
1574 | PicoCpuCM68k.membase=PicoMemBaseM68k(pc);\r |
b837b69b |
1575 | \r |
3aa1e148 |
1576 | return PicoCpuCM68k.membase+pc;\r |
b837b69b |
1577 | }\r |
1578 | \r |
1579 | \r |
1580 | static __inline int PicoMemBaseS68k(u32 pc)\r |
1581 | {\r |
fa1e5e29 |
1582 | if (pc < 0x80000) // PRG RAM\r |
1583 | return (int)Pico_mcd->prg_ram;\r |
b837b69b |
1584 | \r |
fa1e5e29 |
1585 | if ((pc&0xfc0000)==0x080000) // WORD RAM 2M area (assume we are in the right mode..)\r |
1586 | return (int)Pico_mcd->word_ram2M - 0x080000;\r |
1587 | \r |
1588 | if ((pc&0xfe0000)==0x0c0000) { // word RAM 1M area\r |
3aa1e148 |
1589 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1590 | return (int)Pico_mcd->word_ram1M[bank] - 0x0c0000;\r |
b837b69b |
1591 | }\r |
1592 | \r |
fa1e5e29 |
1593 | // Error - Program Counter is invalid\r |
ca61ee42 |
1594 | elprintf(EL_ANOMALY, "s68k FIXME: unhandled jump to %06x", pc);\r |
fa1e5e29 |
1595 | \r |
1596 | return (int)Pico_mcd->prg_ram;\r |
b837b69b |
1597 | }\r |
1598 | \r |
1599 | \r |
1600 | static u32 PicoCheckPcS68k(u32 pc)\r |
1601 | {\r |
3aa1e148 |
1602 | pc-=PicoCpuCS68k.membase; // Get real pc\r |
b837b69b |
1603 | pc&=0xfffffe;\r |
1604 | \r |
3aa1e148 |
1605 | PicoCpuCS68k.membase=PicoMemBaseS68k(pc);\r |
b837b69b |
1606 | \r |
3aa1e148 |
1607 | return PicoCpuCS68k.membase+pc;\r |
b837b69b |
1608 | }\r |
1609 | #endif\r |
1610 | \r |
3aa1e148 |
1611 | #ifndef _ASM_CD_MEMORY_C\r |
1612 | void PicoMemResetCD(int r3)\r |
1613 | {\r |
1614 | #ifdef EMU_F68K\r |
1615 | // update fetchmap..\r |
1616 | int i;\r |
1617 | if (!(r3 & 4))\r |
1618 | {\r |
1619 | for (i = M68K_FETCHBANK1*2/16; (i<<(24-FAMEC_FETCHBITS)) < 0x240000; i++)\r |
1620 | PicoCpuFM68k.Fetch[i] = (unsigned int)Pico_mcd->word_ram2M - 0x200000;\r |
1621 | }\r |
1622 | else\r |
1623 | {\r |
1624 | for (i = M68K_FETCHBANK1*2/16; (i<<(24-FAMEC_FETCHBITS)) < 0x220000; i++)\r |
1625 | PicoCpuFM68k.Fetch[i] = (unsigned int)Pico_mcd->word_ram1M[r3 & 1] - 0x200000;\r |
1626 | for (i = M68K_FETCHBANK1*0x0c/0x100; (i<<(24-FAMEC_FETCHBITS)) < 0x0e0000; i++)\r |
1627 | PicoCpuFS68k.Fetch[i] = (unsigned int)Pico_mcd->word_ram1M[(r3&1)^1] - 0x0c0000;\r |
1628 | }\r |
1629 | #endif\r |
1630 | }\r |
1631 | #endif\r |
b837b69b |
1632 | \r |
eff55556 |
1633 | PICO_INTERNAL void PicoMemSetupCD(void)\r |
b837b69b |
1634 | {\r |
f53f286a |
1635 | // additional handlers for common code\r |
1636 | PicoRead16Hook = OtherRead16End;\r |
1637 | PicoWrite8Hook = OtherWrite8End;\r |
1638 | \r |
b837b69b |
1639 | #ifdef EMU_C68K\r |
1640 | // Setup m68k memory callbacks:\r |
3aa1e148 |
1641 | PicoCpuCM68k.checkpc=PicoCheckPcM68k;\r |
1642 | PicoCpuCM68k.fetch8 =PicoCpuCM68k.read8 =PicoReadM68k8;\r |
1643 | PicoCpuCM68k.fetch16=PicoCpuCM68k.read16=PicoReadM68k16;\r |
1644 | PicoCpuCM68k.fetch32=PicoCpuCM68k.read32=PicoReadM68k32;\r |
1645 | PicoCpuCM68k.write8 =PicoWriteM68k8;\r |
1646 | PicoCpuCM68k.write16=PicoWriteM68k16;\r |
1647 | PicoCpuCM68k.write32=PicoWriteM68k32;\r |
b837b69b |
1648 | // s68k\r |
3aa1e148 |
1649 | PicoCpuCS68k.checkpc=PicoCheckPcS68k;\r |
1650 | PicoCpuCS68k.fetch8 =PicoCpuCS68k.read8 =PicoReadS68k8;\r |
1651 | PicoCpuCS68k.fetch16=PicoCpuCS68k.read16=PicoReadS68k16;\r |
1652 | PicoCpuCS68k.fetch32=PicoCpuCS68k.read32=PicoReadS68k32;\r |
1653 | PicoCpuCS68k.write8 =PicoWriteS68k8;\r |
1654 | PicoCpuCS68k.write16=PicoWriteS68k16;\r |
1655 | PicoCpuCS68k.write32=PicoWriteS68k32;\r |
b837b69b |
1656 | #endif\r |
3aa1e148 |
1657 | #ifdef EMU_F68K\r |
1658 | // m68k\r |
1659 | PicoCpuFM68k.read_byte =PicoReadM68k8;\r |
1660 | PicoCpuFM68k.read_word =PicoReadM68k16;\r |
1661 | PicoCpuFM68k.read_long =PicoReadM68k32;\r |
1662 | PicoCpuFM68k.write_byte=PicoWriteM68k8;\r |
1663 | PicoCpuFM68k.write_word=PicoWriteM68k16;\r |
1664 | PicoCpuFM68k.write_long=PicoWriteM68k32;\r |
1665 | // s68k\r |
1666 | PicoCpuFS68k.read_byte =PicoReadS68k8;\r |
1667 | PicoCpuFS68k.read_word =PicoReadS68k16;\r |
1668 | PicoCpuFS68k.read_long =PicoReadS68k32;\r |
1669 | PicoCpuFS68k.write_byte=PicoWriteS68k8;\r |
1670 | PicoCpuFS68k.write_word=PicoWriteS68k16;\r |
1671 | PicoCpuFS68k.write_long=PicoWriteS68k32;\r |
1672 | \r |
1673 | // setup FAME fetchmap\r |
1674 | {\r |
1675 | int i;\r |
1676 | // M68k\r |
1677 | // by default, point everything to fitst 64k of ROM (BIOS)\r |
1678 | for (i = 0; i < M68K_FETCHBANK1; i++)\r |
1679 | PicoCpuFM68k.Fetch[i] = (unsigned int)Pico.rom - (i<<(24-FAMEC_FETCHBITS));\r |
1680 | // now real ROM (BIOS)\r |
1681 | for (i = 0; i < M68K_FETCHBANK1 && (i<<(24-FAMEC_FETCHBITS)) < Pico.romsize; i++)\r |
1682 | PicoCpuFM68k.Fetch[i] = (unsigned int)Pico.rom;\r |
1683 | // .. and RAM\r |
1684 | for (i = M68K_FETCHBANK1*14/16; i < M68K_FETCHBANK1; i++)\r |
1685 | PicoCpuFM68k.Fetch[i] = (unsigned int)Pico.ram - (i<<(24-FAMEC_FETCHBITS));\r |
1686 | // S68k\r |
1687 | // PRG RAM is default\r |
1688 | for (i = 0; i < M68K_FETCHBANK1; i++)\r |
1689 | PicoCpuFS68k.Fetch[i] = (unsigned int)Pico_mcd->prg_ram - (i<<(24-FAMEC_FETCHBITS));\r |
1690 | // real PRG RAM\r |
1691 | for (i = 0; i < M68K_FETCHBANK1 && (i<<(24-FAMEC_FETCHBITS)) < 0x80000; i++)\r |
1692 | PicoCpuFS68k.Fetch[i] = (unsigned int)Pico_mcd->prg_ram;\r |
1693 | // WORD RAM 2M area\r |
1694 | for (i = M68K_FETCHBANK1*0x08/0x100; i < M68K_FETCHBANK1 && (i<<(24-FAMEC_FETCHBITS)) < 0xc0000; i++)\r |
1695 | PicoCpuFS68k.Fetch[i] = (unsigned int)Pico_mcd->word_ram2M - 0x80000;\r |
1696 | // PicoMemResetCD() will setup word ram for both\r |
1697 | }\r |
1698 | #endif\r |
1699 | \r |
7a1f6e45 |
1700 | // m68k_poll_addr = m68k_poll_cnt = 0;\r |
1701 | s68k_poll_adclk = s68k_poll_cnt = 0;\r |
b837b69b |
1702 | }\r |
1703 | \r |
1704 | \r |
cc68a136 |
1705 | #ifdef EMU_M68K\r |
1706 | unsigned char PicoReadCD8w (unsigned int a) {\r |
3aa1e148 |
1707 | return m68ki_cpu_p == &PicoCpuMS68k ? PicoReadS68k8(a) : PicoReadM68k8(a);\r |
cc68a136 |
1708 | }\r |
1709 | unsigned short PicoReadCD16w(unsigned int a) {\r |
3aa1e148 |
1710 | return m68ki_cpu_p == &PicoCpuMS68k ? PicoReadS68k16(a) : PicoReadM68k16(a);\r |
cc68a136 |
1711 | }\r |
1712 | unsigned int PicoReadCD32w(unsigned int a) {\r |
3aa1e148 |
1713 | return m68ki_cpu_p == &PicoCpuMS68k ? PicoReadS68k32(a) : PicoReadM68k32(a);\r |
cc68a136 |
1714 | }\r |
1715 | void PicoWriteCD8w (unsigned int a, unsigned char d) {\r |
3aa1e148 |
1716 | if (m68ki_cpu_p == &PicoCpuMS68k) PicoWriteS68k8(a, d); else PicoWriteM68k8(a, d);\r |
cc68a136 |
1717 | }\r |
1718 | void PicoWriteCD16w(unsigned int a, unsigned short d) {\r |
3aa1e148 |
1719 | if (m68ki_cpu_p == &PicoCpuMS68k) PicoWriteS68k16(a, d); else PicoWriteM68k16(a, d);\r |
cc68a136 |
1720 | }\r |
1721 | void PicoWriteCD32w(unsigned int a, unsigned int d) {\r |
3aa1e148 |
1722 | if (m68ki_cpu_p == &PicoCpuMS68k) PicoWriteS68k32(a, d); else PicoWriteM68k32(a, d);\r |
cc68a136 |
1723 | }\r |
1724 | \r |
1725 | // these are allowed to access RAM\r |
b5e5172d |
1726 | unsigned int m68k_read_pcrelative_CD8 (unsigned int a)\r |
1727 | {\r |
cc68a136 |
1728 | a&=0xffffff;\r |
3aa1e148 |
1729 | if(m68ki_cpu_p == &PicoCpuMS68k) {\r |
cc68a136 |
1730 | if (a < 0x80000) return *(u8 *)(Pico_mcd->prg_ram+(a^1)); // PRG Ram\r |
fa1e5e29 |
1731 | if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff)\r |
1732 | return *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff));\r |
1733 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff)\r |
3aa1e148 |
1734 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1735 | return *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff));\r |
1736 | }\r |
ca61ee42 |
1737 | elprintf(EL_ANOMALY, "s68k_read_pcrelative_CD8 FIXME: can't handle %06x", a);\r |
cc68a136 |
1738 | } else {\r |
cc68a136 |
1739 | if((a&0xe00000)==0xe00000) return *(u8 *)(Pico.ram+((a^1)&0xffff)); // Ram\r |
fa1e5e29 |
1740 | if(a<0x20000) return *(u8 *)(Pico.rom+(a^1)); // Bios\r |
1741 | if((a&0xfc0000)==0x200000) { // word RAM\r |
1742 | if(!(Pico_mcd->s68k_regs[3]&4)) // 2M?\r |
1743 | return *(u8 *)(Pico_mcd->word_ram2M+((a^1)&0x3ffff));\r |
1744 | else if (a < 0x220000) {\r |
1745 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
1746 | return *(u8 *)(Pico_mcd->word_ram1M[bank]+((a^1)&0x1ffff));\r |
1747 | }\r |
1748 | }\r |
ca61ee42 |
1749 | elprintf(EL_ANOMALY, "m68k_read_pcrelative_CD8 FIXME: can't handle %06x", a);\r |
cc68a136 |
1750 | }\r |
1751 | return 0;//(u8) lastread_d;\r |
1752 | }\r |
b5e5172d |
1753 | unsigned int m68k_read_pcrelative_CD16(unsigned int a)\r |
1754 | {\r |
cc68a136 |
1755 | a&=0xffffff;\r |
3aa1e148 |
1756 | if(m68ki_cpu_p == &PicoCpuMS68k) {\r |
cc68a136 |
1757 | if (a < 0x80000) return *(u16 *)(Pico_mcd->prg_ram+(a&~1)); // PRG Ram\r |
fa1e5e29 |
1758 | if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff)\r |
1759 | return *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
1760 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff)\r |
3aa1e148 |
1761 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1762 | return *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
1763 | }\r |
ca61ee42 |
1764 | elprintf(EL_ANOMALY, "s68k_read_pcrelative_CD16 FIXME: can't handle %06x", a);\r |
cc68a136 |
1765 | } else {\r |
cc68a136 |
1766 | if((a&0xe00000)==0xe00000) return *(u16 *)(Pico.ram+(a&0xfffe)); // Ram\r |
fa1e5e29 |
1767 | if(a<0x20000) return *(u16 *)(Pico.rom+(a&~1)); // Bios\r |
1768 | if((a&0xfc0000)==0x200000) { // word RAM\r |
1769 | if(!(Pico_mcd->s68k_regs[3]&4)) // 2M?\r |
1770 | return *(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe));\r |
1771 | else if (a < 0x220000) {\r |
1772 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
1773 | return *(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
1774 | }\r |
1775 | }\r |
ca61ee42 |
1776 | elprintf(EL_ANOMALY, "m68k_read_pcrelative_CD16 FIXME: can't handle %06x", a);\r |
cc68a136 |
1777 | }\r |
b837b69b |
1778 | return 0;\r |
cc68a136 |
1779 | }\r |
b5e5172d |
1780 | unsigned int m68k_read_pcrelative_CD32(unsigned int a)\r |
1781 | {\r |
fa1e5e29 |
1782 | u16 *pm;\r |
cc68a136 |
1783 | a&=0xffffff;\r |
3aa1e148 |
1784 | if(m68ki_cpu_p == &PicoCpuMS68k) {\r |
cc68a136 |
1785 | if (a < 0x80000) { u16 *pm=(u16 *)(Pico_mcd->prg_ram+(a&~1)); return (pm[0]<<16)|pm[1]; } // PRG Ram\r |
fa1e5e29 |
1786 | if ((a&0xfc0000)==0x080000 && !(Pico_mcd->s68k_regs[3]&4)) // word RAM (2M area: 080000-0bffff)\r |
1787 | { pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); return (pm[0]<<16)|pm[1]; }\r |
1788 | if ((a&0xfe0000)==0x0c0000 && (Pico_mcd->s68k_regs[3]&4)) { // word RAM (1M area: 0c0000-0dffff)\r |
3aa1e148 |
1789 | int bank = (Pico_mcd->s68k_regs[3]&1)^1;\r |
fa1e5e29 |
1790 | pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
1791 | return (pm[0]<<16)|pm[1];\r |
1792 | }\r |
ca61ee42 |
1793 | elprintf(EL_ANOMALY, "s68k_read_pcrelative_CD32 FIXME: can't handle %06x", a);\r |
cc68a136 |
1794 | } else {\r |
cc68a136 |
1795 | if((a&0xe00000)==0xe00000) { u16 *pm=(u16 *)(Pico.ram+(a&0xfffe)); return (pm[0]<<16)|pm[1]; } // Ram\r |
fa1e5e29 |
1796 | if(a<0x20000) { u16 *pm=(u16 *)(Pico.rom+(a&~1)); return (pm[0]<<16)|pm[1]; }\r |
1797 | if((a&0xfc0000)==0x200000) { // word RAM\r |
1798 | if(!(Pico_mcd->s68k_regs[3]&4)) // 2M?\r |
1799 | { pm=(u16 *)(Pico_mcd->word_ram2M+(a&0x3fffe)); return (pm[0]<<16)|pm[1]; }\r |
1800 | else if (a < 0x220000) {\r |
1801 | int bank = Pico_mcd->s68k_regs[3]&1;\r |
1802 | pm=(u16 *)(Pico_mcd->word_ram1M[bank]+(a&0x1fffe));\r |
1803 | return (pm[0]<<16)|pm[1];\r |
1804 | }\r |
1805 | }\r |
ca61ee42 |
1806 | elprintf(EL_ANOMALY, "m68k_read_pcrelative_CD32 FIXME: can't handle %06x", a);\r |
cc68a136 |
1807 | }\r |
b837b69b |
1808 | return 0;\r |
cc68a136 |
1809 | }\r |
1810 | #endif // EMU_M68K\r |
1811 | \r |