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1 | // This is part of Pico Library\r |
2 | \r |
3 | // (c) Copyright 2004 Dave, All rights reserved.\r |
4 | // (c) Copyright 2006 notaz, All rights reserved.\r |
5 | // Free for non-commercial use.\r |
6 | \r |
7 | // For commercial use, separate licencing terms must be obtained.\r |
8 | \r |
9 | \r |
10 | #include "PicoInt.h"\r |
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11 | #include "sound/ym2612.h"\r |
12 | \r |
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13 | int PicoVer=0x0133;\r |
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14 | struct Pico Pico;\r |
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15 | int PicoOpt = 0;\r |
16 | int PicoSkipFrame = 0; // skip rendering frame?\r |
17 | int emustatus = 0; // rapid_ym2612, multi_ym_updates\r |
18 | int PicoPad[2]; // Joypads, format is SACB RLDU\r |
9037e45d |
19 | int PicoAHW = 0; // active addon hardware: scd_active, 32x_active, svp_active, pico_active\r |
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20 | int PicoRegionOverride = 0; // override the region detection 0: Auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r |
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21 | int PicoAutoRgnOrder = 0;\r |
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22 | struct PicoSRAM SRam = {0,};\r |
23 | \r |
f8ef8ff7 |
24 | void (*PicoWriteSound)(int len) = NULL; // called at the best time to send sound buffer (PsndOut) to hardware\r |
25 | void (*PicoResetHook)(void) = NULL;\r |
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26 | void (*PicoLineHook)(int count) = NULL;\r |
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27 | \r |
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28 | // to be called once on emu init\r |
29 | int PicoInit(void)\r |
30 | {\r |
31 | // Blank space for state:\r |
32 | memset(&Pico,0,sizeof(Pico));\r |
33 | memset(&PicoPad,0,sizeof(PicoPad));\r |
34 | \r |
35 | // Init CPUs:\r |
36 | SekInit();\r |
37 | z80_init(); // init even if we aren't going to use it\r |
38 | \r |
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39 | PicoInitMCD();\r |
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40 | PicoSVPInit();\r |
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41 | \r |
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42 | SRam.data=0;\r |
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43 | \r |
44 | return 0;\r |
45 | }\r |
46 | \r |
47 | // to be called once on emu exit\r |
48 | void PicoExit(void)\r |
49 | {\r |
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50 | if (PicoAHW & PAHW_MCD)\r |
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51 | PicoExitMCD();\r |
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52 | z80_exit();\r |
53 | \r |
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54 | if (SRam.data) free(SRam.data); SRam.data=0;\r |
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55 | }\r |
56 | \r |
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57 | void PicoPower(void)\r |
58 | {\r |
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59 | unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r |
60 | \r |
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61 | Pico.m.frame_count = 0;\r |
62 | \r |
1cb1584b |
63 | // clear all memory of the emulated machine\r |
64 | memset(&Pico.ram,0,(unsigned int)&Pico.rom-(unsigned int)&Pico.ram);\r |
65 | \r |
66 | memset(&Pico.video,0,sizeof(Pico.video));\r |
67 | memset(&Pico.m,0,sizeof(Pico.m));\r |
68 | \r |
69 | Pico.video.pending_ints=0;\r |
70 | z80_reset();\r |
71 | \r |
72 | // default VDP register values (based on Fusion)\r |
73 | Pico.video.reg[0] = Pico.video.reg[1] = 0x04;\r |
74 | Pico.video.reg[0xc] = 0x81;\r |
75 | Pico.video.reg[0xf] = 0x02;\r |
76 | \r |
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77 | if (PicoAHW & PAHW_MCD)\r |
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78 | PicoPowerMCD();\r |
79 | \r |
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80 | Pico.m.sram_reg=sram_reg;\r |
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81 | PicoReset();\r |
82 | }\r |
83 | \r |
1e6b5e39 |
84 | PICO_INTERNAL void PicoDetectRegion(void)\r |
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85 | {\r |
1e6b5e39 |
86 | int support=0, hw=0, i;\r |
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87 | unsigned char pal=0;\r |
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88 | \r |
1e6b5e39 |
89 | if (PicoRegionOverride)\r |
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90 | {\r |
91 | support = PicoRegionOverride;\r |
92 | }\r |
93 | else\r |
94 | {\r |
95 | // Read cartridge region data:\r |
1e6b5e39 |
96 | int region=PicoRead32(0x1f0);\r |
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97 | \r |
98 | for (i=0;i<4;i++)\r |
99 | {\r |
100 | int c=0;\r |
101 | \r |
102 | c=region>>(i<<3); c&=0xff;\r |
103 | if (c<=' ') continue;\r |
104 | \r |
51a902ae |
105 | if (c=='J') support|=1;\r |
106 | else if (c=='U') support|=4;\r |
107 | else if (c=='E') support|=8;\r |
108 | else if (c=='j') {support|=1; break; }\r |
109 | else if (c=='u') {support|=4; break; }\r |
110 | else if (c=='e') {support|=8; break; }\r |
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111 | else\r |
112 | {\r |
113 | // New style code:\r |
114 | char s[2]={0,0};\r |
115 | s[0]=(char)c;\r |
116 | support|=strtol(s,NULL,16);\r |
117 | }\r |
118 | }\r |
119 | }\r |
120 | \r |
51a902ae |
121 | // auto detection order override\r |
122 | if (PicoAutoRgnOrder) {\r |
123 | if (((PicoAutoRgnOrder>>0)&0xf) & support) support = (PicoAutoRgnOrder>>0)&0xf;\r |
124 | else if (((PicoAutoRgnOrder>>4)&0xf) & support) support = (PicoAutoRgnOrder>>4)&0xf;\r |
125 | else if (((PicoAutoRgnOrder>>8)&0xf) & support) support = (PicoAutoRgnOrder>>8)&0xf;\r |
126 | }\r |
127 | \r |
cc68a136 |
128 | // Try to pick the best hardware value for English/50hz:\r |
129 | if (support&8) { hw=0xc0; pal=1; } // Europe\r |
130 | else if (support&4) hw=0x80; // USA\r |
131 | else if (support&2) { hw=0x40; pal=1; } // Japan PAL\r |
132 | else if (support&1) hw=0x00; // Japan NTSC\r |
133 | else hw=0x80; // USA\r |
134 | \r |
135 | Pico.m.hardware=(unsigned char)(hw|0x20); // No disk attached\r |
136 | Pico.m.pal=pal;\r |
1e6b5e39 |
137 | }\r |
138 | \r |
139 | int PicoReset(void)\r |
140 | {\r |
141 | unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r |
142 | \r |
143 | if (Pico.romsize<=0) return 1;\r |
144 | \r |
145 | /* must call now, so that banking is reset, and correct vectors get fetched */\r |
146 | if (PicoResetHook) PicoResetHook();\r |
147 | \r |
148 | PicoMemReset();\r |
149 | SekReset();\r |
150 | // s68k doesn't have the TAS quirk, so we just globally set normal TAS handler in MCD mode (used by Batman games).\r |
151 | SekSetRealTAS(PicoAHW & PAHW_MCD);\r |
152 | SekCycleCntT=0;\r |
153 | \r |
154 | if (PicoAHW & PAHW_MCD)\r |
155 | // needed for MCD to reset properly, probably some bug hides behind this..\r |
156 | memset(Pico.ioports,0,sizeof(Pico.ioports));\r |
157 | emustatus = 0;\r |
158 | \r |
159 | Pico.m.dirtyPal = 1;\r |
160 | \r |
1832075e |
161 | Pico.m.z80_bank68k = 0;\r |
162 | memset(Pico.zram, 0, sizeof(Pico.zram)); // ??\r |
163 | \r |
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164 | PicoDetectRegion();\r |
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165 | Pico.video.status = 0x3428 | Pico.m.pal; // 'always set' bits | vblank | collision | pal\r |
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166 | \r |
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167 | PsndReset(); // pal must be known here\r |
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168 | \r |
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169 | // create an empty "dma" to cause 68k exec start at random frame location\r |
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170 | if (Pico.m.dma_xfers == 0 && !(PicoOpt&POPT_DIS_VDP_FIFO))\r |
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171 | Pico.m.dma_xfers = rand() & 0x1fff;\r |
172 | \r |
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173 | if (PicoAHW & PAHW_MCD) {\r |
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174 | PicoResetMCD();\r |
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175 | return 0;\r |
176 | }\r |
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177 | else {\r |
178 | // reinit, so that checksum checks pass\r |
179 | SekFinishIdleDet();\r |
180 | if (!(PicoOpt & POPT_DIS_IDLE_DET))\r |
181 | SekInitIdleDet();\r |
182 | }\r |
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183 | \r |
1dceadae |
184 | // reset sram state; enable sram access by default if it doesn't overlap with ROM\r |
185 | Pico.m.sram_reg=sram_reg&0x14;\r |
186 | if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r |
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187 | \r |
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188 | elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r |
189 | (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r |
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190 | \r |
191 | return 0;\r |
192 | }\r |
193 | \r |
1dceadae |
194 | \r |
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195 | // dma2vram settings are just hacks to unglitch Legend of Galahad (needs <= 104 to work)\r |
196 | // same for Outrunners (92-121, when active is set to 24)\r |
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197 | // 96 is VR hack\r |
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198 | static const int dma_timings[] = {\r |
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199 | 96, 167, 166, 83, // vblank: 32cell: dma2vram dma2[vs|c]ram vram_fill vram_copy\r |
200 | 102, 205, 204, 102, // vblank: 40cell:\r |
201 | 16, 16, 15, 8, // active: 32cell:\r |
202 | 24, 18, 17, 9 // ...\r |
4f672280 |
203 | };\r |
204 | \r |
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205 | static const int dma_bsycles[] = {\r |
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206 | (488<<8)/96, (488<<8)/167, (488<<8)/166, (488<<8)/83,\r |
207 | (488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,\r |
208 | (488<<8)/16, (488<<8)/16, (488<<8)/15, (488<<8)/8,\r |
209 | (488<<8)/24, (488<<8)/18, (488<<8)/17, (488<<8)/9\r |
312e9ce1 |
210 | };\r |
211 | \r |
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212 | PICO_INTERNAL int CheckDMA(void)\r |
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213 | {\r |
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214 | int burn = 0, xfers_can, dma_op = Pico.video.reg[0x17]>>6; // see gens for 00 and 01 modes\r |
215 | int xfers = Pico.m.dma_xfers;\r |
312e9ce1 |
216 | int dma_op1;\r |
4f672280 |
217 | \r |
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218 | if(!(dma_op&2)) dma_op = (Pico.video.type==1) ? 0 : 1; // setting dma_timings offset here according to Gens\r |
219 | dma_op1 = dma_op;\r |
220 | if(Pico.video.reg[12] & 1) dma_op |= 4; // 40 cell mode?\r |
221 | if(!(Pico.video.status&8)&&(Pico.video.reg[1]&0x40)) dma_op|=8; // active display?\r |
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222 | xfers_can = dma_timings[dma_op];\r |
223 | if(xfers <= xfers_can) {\r |
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224 | if(dma_op&2) Pico.video.status&=~2; // dma no longer busy\r |
225 | else {\r |
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226 | burn = xfers * dma_bsycles[dma_op] >> 8; // have to be approximate because can't afford division..\r |
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227 | }\r |
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228 | Pico.m.dma_xfers = 0;\r |
4f672280 |
229 | } else {\r |
230 | if(!(dma_op&2)) burn = 488;\r |
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231 | Pico.m.dma_xfers -= xfers_can;\r |
4f672280 |
232 | }\r |
233 | \r |
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234 | elprintf(EL_VDPDMA, "~Dma %i op=%i can=%i burn=%i [%i]", Pico.m.dma_xfers, dma_op1, xfers_can, burn, SekCyclesDone());\r |
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235 | //dprintf("~aim: %i, cnt: %i", SekCycleAim, SekCycleCnt);\r |
236 | return burn;\r |
4f672280 |
237 | }\r |
238 | \r |
bf5fbbb4 |
239 | static __inline void SekRunM68k(int cyc)\r |
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240 | {\r |
241 | int cyc_do;\r |
242 | SekCycleAim+=cyc;\r |
053fd9b4 |
243 | if ((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;\r |
03e4f2a3 |
244 | #if defined(EMU_CORE_DEBUG)\r |
245 | // this means we do run-compare\r |
b5e5172d |
246 | SekCycleCnt+=CM_compareRun(cyc_do, 0);\r |
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247 | #elif defined(EMU_C68K)\r |
3aa1e148 |
248 | PicoCpuCM68k.cycles=cyc_do;\r |
249 | CycloneRun(&PicoCpuCM68k);\r |
250 | SekCycleCnt+=cyc_do-PicoCpuCM68k.cycles;\r |
cc68a136 |
251 | #elif defined(EMU_M68K)\r |
252 | SekCycleCnt+=m68k_execute(cyc_do);\r |
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253 | #elif defined(EMU_F68K)\r |
8022f53d |
254 | SekCycleCnt+=fm68k_emulate(cyc_do+1, 0);\r |
cc68a136 |
255 | #endif\r |
256 | }\r |
257 | \r |
258 | static __inline void SekStep(void)\r |
259 | {\r |
260 | // this is required for timing sensitive stuff to work\r |
261 | int realaim=SekCycleAim; SekCycleAim=SekCycleCnt+1;\r |
03e4f2a3 |
262 | #if defined(EMU_CORE_DEBUG)\r |
b5e5172d |
263 | SekCycleCnt+=CM_compareRun(1, 0);\r |
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264 | #elif defined(EMU_C68K)\r |
3aa1e148 |
265 | PicoCpuCM68k.cycles=1;\r |
266 | CycloneRun(&PicoCpuCM68k);\r |
267 | SekCycleCnt+=1-PicoCpuCM68k.cycles;\r |
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268 | #elif defined(EMU_M68K)\r |
269 | SekCycleCnt+=m68k_execute(1);\r |
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270 | #elif defined(EMU_F68K)\r |
8022f53d |
271 | SekCycleCnt+=fm68k_emulate(1, 0);\r |
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272 | #endif\r |
273 | SekCycleAim=realaim;\r |
274 | }\r |
275 | \r |
276 | static int CheckIdle(void)\r |
277 | {\r |
fad24893 |
278 | int i, state[0x24];\r |
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279 | \r |
280 | // See if the state is the same after 2 steps:\r |
fad24893 |
281 | SekState(state); SekStep(); SekStep(); SekState(state+0x12);\r |
282 | for (i = 0x11; i >= 0; i--)\r |
283 | if (state[i] != state[i+0x12]) return 0;\r |
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284 | \r |
3aa1e148 |
285 | return 1;\r |
cc68a136 |
286 | }\r |
287 | \r |
fa283c9a |
288 | \r |
cc68a136 |
289 | // to be called on 224 or line_sample scanlines only\r |
290 | static __inline void getSamples(int y)\r |
291 | {\r |
03a265e5 |
292 | #if SIMPLE_WRITE_SOUND\r |
e0978fa8 |
293 | if (y != 224) return;\r |
03a265e5 |
294 | PsndRender(0, PsndLen);\r |
295 | if (PicoWriteSound) PicoWriteSound(PsndLen);\r |
296 | PsndClear();\r |
297 | #else\r |
7a93adeb |
298 | static int curr_pos = 0;\r |
299 | \r |
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300 | if(y == 224) {\r |
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301 | if(emustatus & 2)\r |
9d917eea |
302 | curr_pos += PsndRender(curr_pos, PsndLen-PsndLen/2);\r |
303 | else curr_pos = PsndRender(0, PsndLen);\r |
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304 | if (emustatus&1) emustatus|=2; else emustatus&=~2;\r |
7a93adeb |
305 | if (PicoWriteSound) PicoWriteSound(curr_pos);\r |
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306 | // clear sound buffer\r |
9d917eea |
307 | PsndClear();\r |
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308 | }\r |
309 | else if(emustatus & 3) {\r |
310 | emustatus|= 2;\r |
311 | emustatus&=~1;\r |
9d917eea |
312 | curr_pos = PsndRender(0, PsndLen/2);\r |
cc68a136 |
313 | }\r |
03a265e5 |
314 | #endif\r |
cc68a136 |
315 | }\r |
316 | \r |
69996cb7 |
317 | \r |
69996cb7 |
318 | #include "PicoFrameHints.c"\r |
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319 | \r |
4b9c5888 |
320 | \r |
321 | int z80stopCycle;\r |
322 | int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r |
323 | int z80_cycle_aim;\r |
324 | int z80_scanline;\r |
325 | int z80_scanline_cycles; /* cycles done until z80_scanline */\r |
326 | \r |
327 | /* sync z80 to 68k */\r |
328 | PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done)\r |
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329 | {\r |
4b9c5888 |
330 | int cnt;\r |
331 | z80_cycle_aim = cycles_68k_to_z80(m68k_cycles_done);\r |
332 | cnt = z80_cycle_aim - z80_cycle_cnt;\r |
cc68a136 |
333 | \r |
e5fa9817 |
334 | elprintf(EL_BUSREQ, "z80 sync %i (%i|%i -> %i|%i)", cnt, z80_cycle_cnt, z80_cycle_cnt / 228,\r |
4b9c5888 |
335 | z80_cycle_aim, z80_cycle_aim / 228);\r |
336 | \r |
337 | if (cnt > 0)\r |
338 | z80_cycle_cnt += z80_run(cnt);\r |
cc68a136 |
339 | }\r |
340 | \r |
4b9c5888 |
341 | \r |
cc68a136 |
342 | // Simple frame without H-Ints\r |
343 | static int PicoFrameSimple(void)\r |
344 | {\r |
345 | struct PicoVideo *pv=&Pico.video;\r |
4b9c5888 |
346 | int y=0,lines_step=0,sects,line_last;\r |
cc68a136 |
347 | int cycles_68k_vblock,cycles_68k_block;\r |
348 | \r |
e849512f |
349 | // split to 16 run calls for active scan, for vblank split to 2 (ntsc), 3 (pal 240), 4 (pal 224)\r |
4b9c5888 |
350 | if (Pico.m.pal)\r |
351 | {\r |
cc68a136 |
352 | if(pv->reg[1]&8) { // 240 lines\r |
4b9c5888 |
353 | cycles_68k_block = 7308;\r |
354 | cycles_68k_vblock = 11694;\r |
cc68a136 |
355 | lines_step = 15;\r |
356 | } else {\r |
4b9c5888 |
357 | cycles_68k_block = 6821;\r |
358 | cycles_68k_vblock = 10719;\r |
cc68a136 |
359 | lines_step = 14;\r |
360 | }\r |
4b9c5888 |
361 | line_last = 312-1;\r |
cc68a136 |
362 | } else {\r |
363 | // M68k cycles/frame: 127840.71\r |
e849512f |
364 | cycles_68k_block = 6841; // (488*224+148)/16.0, -4\r |
365 | cycles_68k_vblock = 9164; // (38*488-148-68)/2.0, 0\r |
cc68a136 |
366 | lines_step = 14;\r |
4b9c5888 |
367 | line_last = 262-1;\r |
cc68a136 |
368 | }\r |
369 | \r |
fad24893 |
370 | // a hack for VR, to get it running in fast mode\r |
602133e1 |
371 | if (PicoAHW & PAHW_SVP)\r |
fad24893 |
372 | Pico.ram[0xd864^1] = 0x1a;\r |
373 | \r |
69996cb7 |
374 | // we don't emulate DMA timing in this mode\r |
375 | if (Pico.m.dma_xfers) {\r |
376 | Pico.m.dma_xfers=0;\r |
377 | Pico.video.status&=~2;\r |
378 | }\r |
379 | \r |
380 | // VDP FIFO too\r |
381 | pv->lwrite_cnt = 0;\r |
382 | Pico.video.status|=0x200;\r |
383 | \r |
cc68a136 |
384 | Pico.m.scanline=-1;\r |
4b9c5888 |
385 | PsndDacLine = 0;\r |
cc68a136 |
386 | \r |
387 | SekCyclesReset();\r |
4b9c5888 |
388 | z80_resetCycles();\r |
cc68a136 |
389 | \r |
cc68a136 |
390 | // 6 button pad: let's just say it timed out now\r |
391 | Pico.m.padTHPhase[0]=Pico.m.padTHPhase[1]=0;\r |
392 | \r |
393 | // ---- Active Scan ----\r |
69996cb7 |
394 | pv->status&=~0x88; // clear V-Int, come out of vblank\r |
cc68a136 |
395 | \r |
396 | // Run in sections:\r |
4b9c5888 |
397 | for (sects=16; sects; sects--)\r |
cc68a136 |
398 | {\r |
399 | if (CheckIdle()) break;\r |
400 | \r |
bf5fbbb4 |
401 | SekRunM68k(cycles_68k_block);\r |
0ffefdb8 |
402 | if (PicoLineHook) PicoLineHook(lines_step);\r |
cc68a136 |
403 | }\r |
404 | \r |
4b9c5888 |
405 | // do remaining sections without 68k\r |
406 | if (sects) {\r |
407 | SekCycleCnt += sects * cycles_68k_block;\r |
408 | SekCycleAim += sects * cycles_68k_block;\r |
9a8ffeee |
409 | \r |
0ffefdb8 |
410 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
411 | }\r |
412 | \r |
fad24893 |
413 | // another hack for VR (it needs hints to work)\r |
602133e1 |
414 | if (PicoAHW & PAHW_SVP) {\r |
fad24893 |
415 | Pico.ram[0xd864^1] = 1;\r |
416 | pv->pending_ints|=0x10;\r |
417 | if (pv->reg[0]&0x10) SekInterrupt(4);\r |
418 | SekRunM68k(160);\r |
419 | }\r |
420 | \r |
cc68a136 |
421 | // render screen\r |
e849512f |
422 | if (!PicoSkipFrame)\r |
423 | {\r |
602133e1 |
424 | if (!(PicoOpt&POPT_ALT_RENDERER))\r |
fad24893 |
425 | {\r |
cc68a136 |
426 | // Draw the screen\r |
427 | #if CAN_HANDLE_240_LINES\r |
e849512f |
428 | if (pv->reg[1]&8) {\r |
cc68a136 |
429 | for (y=0;y<240;y++) PicoLine(y);\r |
430 | } else {\r |
431 | for (y=0;y<224;y++) PicoLine(y);\r |
432 | }\r |
433 | #else\r |
434 | for (y=0;y<224;y++) PicoLine(y);\r |
435 | #endif\r |
fad24893 |
436 | }\r |
cc68a136 |
437 | else PicoFrameFull();\r |
8ab3e3c1 |
438 | #ifdef DRAW_FINISH_FUNC\r |
439 | DRAW_FINISH_FUNC();\r |
440 | #endif\r |
441 | }\r |
442 | \r |
e849512f |
443 | // a gap between flags set and vint\r |
444 | pv->pending_ints|=0x20;\r |
445 | pv->status|=8; // go into vblank\r |
bf5fbbb4 |
446 | SekRunM68k(68+4);\r |
e849512f |
447 | \r |
4b9c5888 |
448 | if (Pico.m.z80Run && (PicoOpt&POPT_EN_Z80))\r |
449 | PicoSyncZ80(SekCycleCnt);\r |
450 | \r |
451 | // render sound\r |
452 | if (PsndOut)\r |
453 | {\r |
454 | int len;\r |
455 | if (ym2612.dacen && PsndDacLine <= lines_step*16)\r |
456 | PsndDoDAC(lines_step*16);\r |
457 | len = PsndRender(0, PsndLen);\r |
458 | if (PicoWriteSound) PicoWriteSound(len);\r |
459 | // clear sound buffer\r |
460 | PsndClear();\r |
461 | }\r |
462 | \r |
cc68a136 |
463 | // ---- V-Blanking period ----\r |
464 | // fix line counts\r |
465 | if(Pico.m.pal) {\r |
466 | if(pv->reg[1]&8) { // 240 lines\r |
cc68a136 |
467 | sects = 3;\r |
468 | lines_step = 24;\r |
469 | } else {\r |
cc68a136 |
470 | sects = 4;\r |
471 | lines_step = 22;\r |
472 | }\r |
473 | } else {\r |
cc68a136 |
474 | sects = 2;\r |
475 | lines_step = 19;\r |
476 | }\r |
477 | \r |
cc68a136 |
478 | if (pv->reg[1]&0x20) SekInterrupt(6); // Set IRQ\r |
602133e1 |
479 | if (Pico.m.z80Run && (PicoOpt&POPT_EN_Z80))\r |
cc68a136 |
480 | z80_int();\r |
481 | \r |
4b9c5888 |
482 | while (1)\r |
602133e1 |
483 | {\r |
bf5fbbb4 |
484 | SekRunM68k(cycles_68k_vblock);\r |
0ffefdb8 |
485 | if (PicoLineHook) PicoLineHook(lines_step);\r |
cc68a136 |
486 | \r |
487 | sects--;\r |
4b9c5888 |
488 | if (sects == 0) break;\r |
489 | if (CheckIdle()) break;\r |
cc68a136 |
490 | }\r |
491 | \r |
e849512f |
492 | if (sects) {\r |
4b9c5888 |
493 | SekCycleCnt += sects * cycles_68k_vblock;\r |
494 | SekCycleAim += sects * cycles_68k_vblock;\r |
0ffefdb8 |
495 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
496 | }\r |
497 | \r |
4b9c5888 |
498 | // must sync z80 before return, and extend last DAC sample\r |
499 | if (Pico.m.z80Run && (PicoOpt&POPT_EN_Z80))\r |
500 | PicoSyncZ80(SekCycleCnt);\r |
501 | if (PsndOut && ym2612.dacen && PsndDacLine <= line_last)\r |
502 | PsndDoDAC(line_last);\r |
503 | \r |
e53704e6 |
504 | timers_cycle();\r |
505 | \r |
cc68a136 |
506 | return 0;\r |
507 | }\r |
508 | \r |
053fd9b4 |
509 | int idle_hit_counter = 0;\r |
510 | \r |
cc68a136 |
511 | int PicoFrame(void)\r |
512 | {\r |
513 | int acc;\r |
514 | \r |
053fd9b4 |
515 | if ((Pico.m.frame_count&0x3f) == 0) {\r |
516 | elprintf(EL_STATUS, "ihits: %i", idle_hit_counter);\r |
517 | idle_hit_counter = 0;\r |
518 | }\r |
519 | \r |
8c1952f0 |
520 | Pico.m.frame_count++;\r |
521 | \r |
602133e1 |
522 | if (PicoAHW & PAHW_MCD) {\r |
cc68a136 |
523 | PicoFrameMCD();\r |
524 | return 0;\r |
525 | }\r |
526 | \r |
527 | // be accurate if we are asked for this\r |
602133e1 |
528 | if (PicoOpt&POPT_ACC_TIMING) acc=1;\r |
cc68a136 |
529 | // don't be accurate in alternative render mode, as hint effects will not be rendered anyway\r |
602133e1 |
530 | else if (PicoOpt&POPT_ALT_RENDERER) acc = 0;\r |
cc68a136 |
531 | else acc=Pico.video.reg[0]&0x10; // be accurate if hints are used\r |
532 | \r |
533 | //if(Pico.video.reg[12]&0x2) Pico.video.status ^= 0x10; // change odd bit in interlace mode\r |
534 | \r |
602133e1 |
535 | if (!(PicoOpt&POPT_ALT_RENDERER))\r |
cc68a136 |
536 | PicoFrameStart();\r |
537 | \r |
602133e1 |
538 | if (acc)\r |
cc68a136 |
539 | PicoFrameHints();\r |
540 | else PicoFrameSimple();\r |
541 | \r |
542 | return 0;\r |
543 | }\r |
544 | \r |
a12e0116 |
545 | void PicoFrameDrawOnly(void)\r |
546 | {\r |
547 | int y;\r |
548 | PicoFrameStart();\r |
549 | for (y=0;y<224;y++) PicoLine(y);\r |
550 | }\r |
551 | \r |
4609d0cd |
552 | void PicoGetInternal(pint_t which, pint_ret_t *r)\r |
8e5427a0 |
553 | {\r |
554 | switch (which)\r |
555 | {\r |
4609d0cd |
556 | case PI_ROM: r->vptr = Pico.rom; break;\r |
557 | case PI_ISPAL: r->vint = Pico.m.pal; break;\r |
558 | case PI_IS40_CELL: r->vint = Pico.video.reg[12]&1; break;\r |
559 | case PI_IS240_LINES: r->vint = Pico.m.pal && (Pico.video.reg[1]&8); break;\r |
8e5427a0 |
560 | }\r |
8e5427a0 |
561 | }\r |
562 | \r |
66fdc0f0 |
563 | // callback to output message from emu\r |
564 | void (*PicoMessage)(const char *msg)=NULL;\r |
cc68a136 |
565 | \r |
1820b5a7 |
566 | #if 1 // defined(__DEBUG_PRINT)\r |
cc68a136 |
567 | #define bit(r, x) ((r>>x)&1)\r |
568 | void z80_debug(char *dstr);\r |
0af33fe0 |
569 | char *debugString(void)\r |
cc68a136 |
570 | {\r |
571 | #if 1\r |
572 | static char dstr[1024];\r |
0af33fe0 |
573 | struct PicoVideo *pv=&Pico.video;\r |
574 | unsigned char *reg=pv->reg, r;\r |
575 | char *dstrp;\r |
576 | \r |
577 | dstrp = dstr;\r |
578 | sprintf(dstrp, "mode set 1: %02x\n", (r=reg[0])); dstrp+=strlen(dstrp);\r |
579 | sprintf(dstrp, "display_disable: %i, M3: %i, palette: %i, ?, hints: %i\n", bit(r,0), bit(r,1), bit(r,2), bit(r,4));\r |
580 | dstrp+=strlen(dstrp);\r |
581 | sprintf(dstrp, "mode set 2: %02x\n", (r=reg[1])); dstrp+=strlen(dstrp);\r |
582 | sprintf(dstrp, "SMS/gen: %i, pal: %i, dma: %i, vints: %i, disp: %i, TMS: %i\n", bit(r,2), bit(r,3), bit(r,4),\r |
583 | bit(r,5), bit(r,6), bit(r,7)); dstrp+=strlen(dstrp);\r |
584 | sprintf(dstrp, "mode set 3: %02x\n", (r=reg[0xB])); dstrp+=strlen(dstrp);\r |
585 | sprintf(dstrp, "LSCR: %i, HSCR: %i, 2cell vscroll: %i, IE2: %i\n", bit(r,0), bit(r,1), bit(r,2), bit(r,3)); dstrp+=strlen(dstrp);\r |
586 | sprintf(dstrp, "mode set 4: %02x\n", (r=reg[0xC])); dstrp+=strlen(dstrp);\r |
587 | sprintf(dstrp, "interlace: %i%i, cells: %i, shadow: %i\n", bit(r,2), bit(r,1), (r&0x80) ? 40 : 32, bit(r,3));\r |
588 | dstrp+=strlen(dstrp);\r |
1dceadae |
589 | sprintf(dstrp, "scroll size: w: %i, h: %i SRAM: %i; eeprom: %i (%i)\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,\r |
590 | bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2), SRam.eeprom_type); dstrp+=strlen(dstrp);\r |
7969166e |
591 | sprintf(dstrp, "sram range: %06x-%06x, reg: %02x\n", SRam.start, SRam.end, Pico.m.sram_reg); dstrp+=strlen(dstrp);\r |
0af33fe0 |
592 | sprintf(dstrp, "pend int: v:%i, h:%i, vdp status: %04x\n", bit(pv->pending_ints,5), bit(pv->pending_ints,4), pv->status);\r |
593 | dstrp+=strlen(dstrp);\r |
7d4906bf |
594 | #if defined(EMU_C68K)\r |
3aa1e148 |
595 | sprintf(dstrp, "M68k: PC: %06x, st_flg: %x, cycles: %u\n", SekPc, PicoCpuCM68k.state_flags, SekCyclesDoneT());\r |
0af33fe0 |
596 | dstrp+=strlen(dstrp);\r |
3aa1e148 |
597 | sprintf(dstrp, "d0=%08x, a0=%08x, osp=%08x, irql=%i\n", PicoCpuCM68k.d[0], PicoCpuCM68k.a[0], PicoCpuCM68k.osp, PicoCpuCM68k.irq); dstrp+=strlen(dstrp);\r |
598 | sprintf(dstrp, "d1=%08x, a1=%08x, sr=%04x\n", PicoCpuCM68k.d[1], PicoCpuCM68k.a[1], CycloneGetSr(&PicoCpuCM68k)); dstrp+=strlen(dstrp);\r |
0af33fe0 |
599 | for(r=2; r < 8; r++) {\r |
3aa1e148 |
600 | sprintf(dstrp, "d%i=%08x, a%i=%08x\n", r, PicoCpuCM68k.d[r], r, PicoCpuCM68k.a[r]); dstrp+=strlen(dstrp);\r |
0af33fe0 |
601 | }\r |
7d4906bf |
602 | #elif defined(EMU_M68K)\r |
3aa1e148 |
603 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuMM68k.int_level>>8); dstrp+=strlen(dstrp);\r |
70357ce5 |
604 | #elif defined(EMU_F68K)\r |
3aa1e148 |
605 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuFM68k.interrupts[0]); dstrp+=strlen(dstrp);\r |
cc68a136 |
606 | #endif\r |
0af33fe0 |
607 | sprintf(dstrp, "z80Run: %i, pal: %i, frame#: %i\n", Pico.m.z80Run, Pico.m.pal, Pico.m.frame_count); dstrp+=strlen(dstrp);\r |
608 | z80_debug(dstrp); dstrp+=strlen(dstrp);\r |
609 | if (strlen(dstr) > sizeof(dstr))\r |
610 | printf("warning: debug buffer overflow (%i/%i)\n", strlen(dstr), sizeof(dstr));\r |
cc68a136 |
611 | \r |
612 | #else\r |
613 | struct PicoVideo *pvid=&Pico.video;\r |
614 | int table=0;\r |
615 | int i,u,n,link=0;\r |
616 | static char dstr[1024*8];\r |
617 | dstr[0] = 0;\r |
618 | \r |
619 | table=pvid->reg[5]&0x7f;\r |
620 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
621 | table<<=8; // Get sprite table address/2\r |
622 | \r |
623 | for (i=u=n=0; u < 80 && n < 20; u++)\r |
624 | {\r |
625 | unsigned int *sprite;\r |
626 | int code, code2, sx, sy, height;\r |
627 | \r |
628 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
629 | \r |
630 | // get sprite info\r |
631 | code = sprite[0];\r |
632 | \r |
633 | // check if it is on this line\r |
634 | sy = (code&0x1ff);//-0x80;\r |
635 | height = ((code>>24)&3)+1;\r |
636 | \r |
637 | // masking sprite?\r |
638 | code2 = sprite[1];\r |
639 | sx = (code2>>16)&0x1ff;\r |
640 | \r |
69996cb7 |
641 | printf("#%02i x: %03i y: %03i %ix%i\n", u, sx, sy, ((code>>26)&3)+1, height);\r |
cc68a136 |
642 | \r |
643 | link=(code>>16)&0x7f;\r |
644 | if(!link) break; // End of sprites\r |
645 | }\r |
646 | #endif\r |
647 | \r |
cc68a136 |
648 | return dstr;\r |
649 | }\r |
650 | #endif\r |