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