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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 |
19 | int PicoAHW = 0; // active addon hardware: scd_active, 32x_active, svp_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 |
51a902ae |
21 | int PicoAutoRgnOrder = 0;\r |
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22 | int z80startCycle, z80stopCycle; // in 68k cycles\r |
23 | struct PicoSRAM SRam = {0,};\r |
24 | \r |
f8ef8ff7 |
25 | void (*PicoWriteSound)(int len) = NULL; // called at the best time to send sound buffer (PsndOut) to hardware\r |
26 | void (*PicoResetHook)(void) = NULL;\r |
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27 | void (*PicoLineHook)(int count) = NULL;\r |
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28 | \r |
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29 | // to be called once on emu init\r |
30 | int PicoInit(void)\r |
31 | {\r |
32 | // Blank space for state:\r |
33 | memset(&Pico,0,sizeof(Pico));\r |
34 | memset(&PicoPad,0,sizeof(PicoPad));\r |
35 | \r |
36 | // Init CPUs:\r |
37 | SekInit();\r |
38 | z80_init(); // init even if we aren't going to use it\r |
39 | \r |
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40 | PicoInitMCD();\r |
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41 | PicoSVPInit();\r |
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42 | \r |
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43 | SRam.data=0;\r |
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44 | \r |
45 | return 0;\r |
46 | }\r |
47 | \r |
48 | // to be called once on emu exit\r |
49 | void PicoExit(void)\r |
50 | {\r |
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51 | if (PicoAHW & PAHW_MCD)\r |
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52 | PicoExitMCD();\r |
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53 | z80_exit();\r |
54 | \r |
1cb1584b |
55 | if (SRam.data) free(SRam.data); SRam.data=0;\r |
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56 | }\r |
57 | \r |
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58 | void PicoPower(void)\r |
59 | {\r |
60 | // clear all memory of the emulated machine\r |
61 | memset(&Pico.ram,0,(unsigned int)&Pico.rom-(unsigned int)&Pico.ram);\r |
62 | \r |
63 | memset(&Pico.video,0,sizeof(Pico.video));\r |
64 | memset(&Pico.m,0,sizeof(Pico.m));\r |
65 | \r |
66 | Pico.video.pending_ints=0;\r |
67 | z80_reset();\r |
68 | \r |
69 | // default VDP register values (based on Fusion)\r |
70 | Pico.video.reg[0] = Pico.video.reg[1] = 0x04;\r |
71 | Pico.video.reg[0xc] = 0x81;\r |
72 | Pico.video.reg[0xf] = 0x02;\r |
73 | \r |
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74 | if (PicoAHW & PAHW_MCD)\r |
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75 | PicoPowerMCD();\r |
76 | \r |
77 | PicoReset();\r |
78 | }\r |
79 | \r |
80 | int PicoReset(void)\r |
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81 | {\r |
82 | unsigned int region=0;\r |
83 | int support=0,hw=0,i=0;\r |
84 | unsigned char pal=0;\r |
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85 | unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r |
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86 | \r |
87 | if (Pico.romsize<=0) return 1;\r |
88 | \r |
a12b1b29 |
89 | /* must call now, so that banking is reset, and correct vectors get fetched */\r |
90 | if (PicoResetHook) PicoResetHook();\r |
91 | \r |
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92 | PicoMemReset();\r |
93 | SekReset();\r |
c008977e |
94 | // s68k doesn't have the TAS quirk, so we just globally set normal TAS handler in MCD mode (used by Batman games).\r |
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95 | SekSetRealTAS(PicoAHW & PAHW_MCD);\r |
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96 | SekCycleCntT=0;\r |
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97 | \r |
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98 | if (PicoAHW & PAHW_MCD)\r |
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99 | // needed for MCD to reset properly, probably some bug hides behind this..\r |
100 | memset(Pico.ioports,0,sizeof(Pico.ioports));\r |
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101 | emustatus = 0;\r |
102 | \r |
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103 | Pico.m.dirtyPal = 1;\r |
104 | \r |
105 | if(PicoRegionOverride)\r |
106 | {\r |
107 | support = PicoRegionOverride;\r |
108 | }\r |
109 | else\r |
110 | {\r |
111 | // Read cartridge region data:\r |
112 | region=PicoRead32(0x1f0);\r |
113 | \r |
114 | for (i=0;i<4;i++)\r |
115 | {\r |
116 | int c=0;\r |
117 | \r |
118 | c=region>>(i<<3); c&=0xff;\r |
119 | if (c<=' ') continue;\r |
120 | \r |
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121 | if (c=='J') support|=1;\r |
122 | else if (c=='U') support|=4;\r |
123 | else if (c=='E') support|=8;\r |
124 | else if (c=='j') {support|=1; break; }\r |
125 | else if (c=='u') {support|=4; break; }\r |
126 | else if (c=='e') {support|=8; break; }\r |
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127 | else\r |
128 | {\r |
129 | // New style code:\r |
130 | char s[2]={0,0};\r |
131 | s[0]=(char)c;\r |
132 | support|=strtol(s,NULL,16);\r |
133 | }\r |
134 | }\r |
135 | }\r |
136 | \r |
51a902ae |
137 | // auto detection order override\r |
138 | if (PicoAutoRgnOrder) {\r |
139 | if (((PicoAutoRgnOrder>>0)&0xf) & support) support = (PicoAutoRgnOrder>>0)&0xf;\r |
140 | else if (((PicoAutoRgnOrder>>4)&0xf) & support) support = (PicoAutoRgnOrder>>4)&0xf;\r |
141 | else if (((PicoAutoRgnOrder>>8)&0xf) & support) support = (PicoAutoRgnOrder>>8)&0xf;\r |
142 | }\r |
143 | \r |
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144 | // Try to pick the best hardware value for English/50hz:\r |
145 | if (support&8) { hw=0xc0; pal=1; } // Europe\r |
146 | else if (support&4) hw=0x80; // USA\r |
147 | else if (support&2) { hw=0x40; pal=1; } // Japan PAL\r |
148 | else if (support&1) hw=0x00; // Japan NTSC\r |
149 | else hw=0x80; // USA\r |
150 | \r |
151 | Pico.m.hardware=(unsigned char)(hw|0x20); // No disk attached\r |
152 | Pico.m.pal=pal;\r |
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153 | Pico.video.status = 0x3408 | pal; // 'always set' bits | vblank | pal\r |
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154 | \r |
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155 | PsndReset(); // pal must be known here\r |
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156 | \r |
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157 | // create an empty "dma" to cause 68k exec start at random frame location\r |
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158 | if (Pico.m.dma_xfers == 0 && !(PicoOpt&POPT_DIS_VDP_FIFO))\r |
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159 | Pico.m.dma_xfers = rand() & 0x1fff;\r |
160 | \r |
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161 | if (PicoAHW & PAHW_MCD) {\r |
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162 | PicoResetMCD();\r |
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163 | return 0;\r |
164 | }\r |
165 | \r |
1dceadae |
166 | // reset sram state; enable sram access by default if it doesn't overlap with ROM\r |
167 | Pico.m.sram_reg=sram_reg&0x14;\r |
168 | if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r |
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169 | \r |
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170 | elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r |
171 | (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r |
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172 | \r |
173 | return 0;\r |
174 | }\r |
175 | \r |
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176 | \r |
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177 | // dma2vram settings are just hacks to unglitch Legend of Galahad (needs <= 104 to work)\r |
178 | // same for Outrunners (92-121, when active is set to 24)\r |
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179 | // 96 is VR hack\r |
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180 | static const int dma_timings[] = {\r |
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181 | 96, 167, 166, 83, // vblank: 32cell: dma2vram dma2[vs|c]ram vram_fill vram_copy\r |
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182 | 102, 205, 204, 102, // vblank: 40cell:\r |
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183 | 16, 16, 15, 8, // active: 32cell:\r |
184 | 24, 18, 17, 9 // ...\r |
4f672280 |
185 | };\r |
186 | \r |
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187 | static const int dma_bsycles[] = {\r |
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188 | (488<<8)/96, (488<<8)/167, (488<<8)/166, (488<<8)/83,\r |
312e9ce1 |
189 | (488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,\r |
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190 | (488<<8)/16, (488<<8)/16, (488<<8)/15, (488<<8)/8,\r |
191 | (488<<8)/24, (488<<8)/18, (488<<8)/17, (488<<8)/9\r |
312e9ce1 |
192 | };\r |
193 | \r |
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194 | PICO_INTERNAL int CheckDMA(void)\r |
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195 | {\r |
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196 | int burn = 0, xfers_can, dma_op = Pico.video.reg[0x17]>>6; // see gens for 00 and 01 modes\r |
197 | int xfers = Pico.m.dma_xfers;\r |
312e9ce1 |
198 | int dma_op1;\r |
4f672280 |
199 | \r |
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200 | if(!(dma_op&2)) dma_op = (Pico.video.type==1) ? 0 : 1; // setting dma_timings offset here according to Gens\r |
201 | dma_op1 = dma_op;\r |
202 | if(Pico.video.reg[12] & 1) dma_op |= 4; // 40 cell mode?\r |
203 | if(!(Pico.video.status&8)&&(Pico.video.reg[1]&0x40)) dma_op|=8; // active display?\r |
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204 | xfers_can = dma_timings[dma_op];\r |
205 | if(xfers <= xfers_can) {\r |
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206 | if(dma_op&2) Pico.video.status&=~2; // dma no longer busy\r |
207 | else {\r |
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208 | burn = xfers * dma_bsycles[dma_op] >> 8; // have to be approximate because can't afford division..\r |
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209 | }\r |
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210 | Pico.m.dma_xfers = 0;\r |
4f672280 |
211 | } else {\r |
212 | if(!(dma_op&2)) burn = 488;\r |
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213 | Pico.m.dma_xfers -= xfers_can;\r |
4f672280 |
214 | }\r |
215 | \r |
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216 | 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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217 | //dprintf("~aim: %i, cnt: %i", SekCycleAim, SekCycleCnt);\r |
218 | return burn;\r |
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219 | }\r |
220 | \r |
bf5fbbb4 |
221 | static __inline void SekRunM68k(int cyc)\r |
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222 | {\r |
223 | int cyc_do;\r |
224 | SekCycleAim+=cyc;\r |
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225 | if((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;\r |
03e4f2a3 |
226 | #if defined(EMU_CORE_DEBUG)\r |
227 | // this means we do run-compare\r |
b5e5172d |
228 | SekCycleCnt+=CM_compareRun(cyc_do, 0);\r |
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229 | #elif defined(EMU_C68K)\r |
3aa1e148 |
230 | PicoCpuCM68k.cycles=cyc_do;\r |
231 | CycloneRun(&PicoCpuCM68k);\r |
232 | SekCycleCnt+=cyc_do-PicoCpuCM68k.cycles;\r |
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233 | #elif defined(EMU_M68K)\r |
234 | SekCycleCnt+=m68k_execute(cyc_do);\r |
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235 | #elif defined(EMU_F68K)\r |
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236 | SekCycleCnt+=fm68k_emulate(cyc_do+1, 0);\r |
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237 | #endif\r |
238 | }\r |
239 | \r |
240 | static __inline void SekStep(void)\r |
241 | {\r |
242 | // this is required for timing sensitive stuff to work\r |
243 | int realaim=SekCycleAim; SekCycleAim=SekCycleCnt+1;\r |
03e4f2a3 |
244 | #if defined(EMU_CORE_DEBUG)\r |
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245 | SekCycleCnt+=CM_compareRun(1, 0);\r |
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246 | #elif defined(EMU_C68K)\r |
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247 | PicoCpuCM68k.cycles=1;\r |
248 | CycloneRun(&PicoCpuCM68k);\r |
249 | SekCycleCnt+=1-PicoCpuCM68k.cycles;\r |
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250 | #elif defined(EMU_M68K)\r |
251 | SekCycleCnt+=m68k_execute(1);\r |
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252 | #elif defined(EMU_F68K)\r |
8022f53d |
253 | SekCycleCnt+=fm68k_emulate(1, 0);\r |
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254 | #endif\r |
255 | SekCycleAim=realaim;\r |
256 | }\r |
257 | \r |
258 | static int CheckIdle(void)\r |
259 | {\r |
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260 | int i, state[0x24];\r |
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261 | \r |
262 | // See if the state is the same after 2 steps:\r |
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263 | SekState(state); SekStep(); SekStep(); SekState(state+0x12);\r |
264 | for (i = 0x11; i >= 0; i--)\r |
265 | if (state[i] != state[i+0x12]) return 0;\r |
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266 | \r |
3aa1e148 |
267 | return 1;\r |
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268 | }\r |
269 | \r |
fa283c9a |
270 | \r |
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271 | // to be called on 224 or line_sample scanlines only\r |
272 | static __inline void getSamples(int y)\r |
273 | {\r |
03a265e5 |
274 | #if SIMPLE_WRITE_SOUND\r |
e0978fa8 |
275 | if (y != 224) return;\r |
03a265e5 |
276 | PsndRender(0, PsndLen);\r |
277 | if (PicoWriteSound) PicoWriteSound(PsndLen);\r |
278 | PsndClear();\r |
279 | #else\r |
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280 | static int curr_pos = 0;\r |
281 | \r |
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282 | if(y == 224) {\r |
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283 | if(emustatus & 2)\r |
9d917eea |
284 | curr_pos += PsndRender(curr_pos, PsndLen-PsndLen/2);\r |
285 | else curr_pos = PsndRender(0, PsndLen);\r |
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286 | if (emustatus&1) emustatus|=2; else emustatus&=~2;\r |
7a93adeb |
287 | if (PicoWriteSound) PicoWriteSound(curr_pos);\r |
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288 | // clear sound buffer\r |
9d917eea |
289 | PsndClear();\r |
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290 | }\r |
291 | else if(emustatus & 3) {\r |
292 | emustatus|= 2;\r |
293 | emustatus&=~1;\r |
9d917eea |
294 | curr_pos = PsndRender(0, PsndLen/2);\r |
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295 | }\r |
03a265e5 |
296 | #endif\r |
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297 | }\r |
298 | \r |
69996cb7 |
299 | \r |
69996cb7 |
300 | #include "PicoFrameHints.c"\r |
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301 | \r |
9a8ffeee |
302 | // helper z80 runner. Runs only if z80 is enabled at this point\r |
303 | // (z80WriteBusReq will handle the rest)\r |
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304 | static void PicoRunZ80Simple(int line_from, int line_to)\r |
305 | {\r |
9a8ffeee |
306 | int line_from_r=line_from, line_to_r=line_to, line=0;\r |
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307 | int line_sample = Pico.m.pal ? 68 : 93;\r |
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308 | \r |
602133e1 |
309 | if (!(PicoOpt&POPT_EN_Z80) || Pico.m.z80Run == 0) line_to_r = 0;\r |
9a8ffeee |
310 | else {\r |
311 | extern const unsigned short vcounts[];\r |
312 | if (z80startCycle) {\r |
313 | line = vcounts[z80startCycle>>8];\r |
314 | if (line > line_from)\r |
315 | line_from_r = line;\r |
316 | }\r |
317 | z80startCycle = SekCyclesDone();\r |
318 | }\r |
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319 | \r |
602133e1 |
320 | if (PicoOpt&POPT_EN_FM) {\r |
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321 | // we have ym2612 enabled, so we have to run Z80 in lines, so we could update DAC and timers\r |
9a8ffeee |
322 | for (line = line_from; line < line_to; line++) {\r |
9d917eea |
323 | Psnd_timers_and_dac(line);\r |
9a8ffeee |
324 | if ((line == 224 || line == line_sample) && PsndOut) getSamples(line);\r |
325 | if (line == 32 && PsndOut) emustatus &= ~1;\r |
326 | if (line >= line_from_r && line < line_to_r)\r |
b542be46 |
327 | z80_run_nr(228);\r |
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328 | }\r |
9a8ffeee |
329 | } else if (line_to_r-line_from_r > 0) {\r |
b542be46 |
330 | z80_run_nr(228*(line_to_r-line_from_r));\r |
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331 | // samples will be taken by caller\r |
332 | }\r |
333 | }\r |
334 | \r |
335 | // Simple frame without H-Ints\r |
336 | static int PicoFrameSimple(void)\r |
337 | {\r |
338 | struct PicoVideo *pv=&Pico.video;\r |
339 | int y=0,line=0,lines=0,lines_step=0,sects;\r |
340 | int cycles_68k_vblock,cycles_68k_block;\r |
341 | \r |
e849512f |
342 | // split to 16 run calls for active scan, for vblank split to 2 (ntsc), 3 (pal 240), 4 (pal 224)\r |
8ab3e3c1 |
343 | if (Pico.m.pal && (pv->reg[1]&8)) {\r |
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344 | if(pv->reg[1]&8) { // 240 lines\r |
e849512f |
345 | cycles_68k_block = 7329; // (488*240+148)/16.0, -4\r |
346 | cycles_68k_vblock = 11640; // (72*488-148-68)/3.0, 0\r |
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347 | lines_step = 15;\r |
348 | } else {\r |
e849512f |
349 | cycles_68k_block = 6841; // (488*224+148)/16.0, -4\r |
350 | cycles_68k_vblock = 10682; // (88*488-148-68)/4.0, 0\r |
cc68a136 |
351 | lines_step = 14;\r |
352 | }\r |
353 | } else {\r |
354 | // M68k cycles/frame: 127840.71\r |
e849512f |
355 | cycles_68k_block = 6841; // (488*224+148)/16.0, -4\r |
356 | cycles_68k_vblock = 9164; // (38*488-148-68)/2.0, 0\r |
cc68a136 |
357 | lines_step = 14;\r |
358 | }\r |
359 | \r |
fad24893 |
360 | // a hack for VR, to get it running in fast mode\r |
602133e1 |
361 | if (PicoAHW & PAHW_SVP)\r |
fad24893 |
362 | Pico.ram[0xd864^1] = 0x1a;\r |
363 | \r |
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364 | // we don't emulate DMA timing in this mode\r |
365 | if (Pico.m.dma_xfers) {\r |
366 | Pico.m.dma_xfers=0;\r |
367 | Pico.video.status&=~2;\r |
368 | }\r |
369 | \r |
370 | // VDP FIFO too\r |
371 | pv->lwrite_cnt = 0;\r |
372 | Pico.video.status|=0x200;\r |
373 | \r |
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374 | Pico.m.scanline=-1;\r |
9a8ffeee |
375 | z80startCycle=0;\r |
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376 | \r |
377 | SekCyclesReset();\r |
378 | \r |
cc68a136 |
379 | // 6 button pad: let's just say it timed out now\r |
380 | Pico.m.padTHPhase[0]=Pico.m.padTHPhase[1]=0;\r |
381 | \r |
382 | // ---- Active Scan ----\r |
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383 | pv->status&=~0x88; // clear V-Int, come out of vblank\r |
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384 | \r |
385 | // Run in sections:\r |
386 | for(sects=16; sects; sects--)\r |
387 | {\r |
388 | if (CheckIdle()) break;\r |
389 | \r |
390 | lines += lines_step;\r |
bf5fbbb4 |
391 | SekRunM68k(cycles_68k_block);\r |
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392 | \r |
393 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
394 | if (PicoLineHook) PicoLineHook(lines_step);\r |
cc68a136 |
395 | line=lines;\r |
396 | }\r |
397 | \r |
398 | // run Z80 for remaining sections\r |
399 | if(sects) {\r |
400 | int c = sects*cycles_68k_block;\r |
401 | \r |
9a8ffeee |
402 | // this "run" is for approriate line counter, etc\r |
cc68a136 |
403 | SekCycleCnt += c;\r |
404 | SekCycleAim += c;\r |
9a8ffeee |
405 | \r |
406 | lines += sects*lines_step;\r |
407 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
408 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
409 | }\r |
410 | \r |
fad24893 |
411 | // another hack for VR (it needs hints to work)\r |
602133e1 |
412 | if (PicoAHW & PAHW_SVP) {\r |
fad24893 |
413 | Pico.ram[0xd864^1] = 1;\r |
414 | pv->pending_ints|=0x10;\r |
415 | if (pv->reg[0]&0x10) SekInterrupt(4);\r |
416 | SekRunM68k(160);\r |
417 | }\r |
418 | \r |
cc68a136 |
419 | // render screen\r |
e849512f |
420 | if (!PicoSkipFrame)\r |
421 | {\r |
602133e1 |
422 | if (!(PicoOpt&POPT_ALT_RENDERER))\r |
fad24893 |
423 | {\r |
cc68a136 |
424 | // Draw the screen\r |
425 | #if CAN_HANDLE_240_LINES\r |
e849512f |
426 | if (pv->reg[1]&8) {\r |
cc68a136 |
427 | for (y=0;y<240;y++) PicoLine(y);\r |
428 | } else {\r |
429 | for (y=0;y<224;y++) PicoLine(y);\r |
430 | }\r |
431 | #else\r |
432 | for (y=0;y<224;y++) PicoLine(y);\r |
433 | #endif\r |
fad24893 |
434 | }\r |
cc68a136 |
435 | else PicoFrameFull();\r |
8ab3e3c1 |
436 | #ifdef DRAW_FINISH_FUNC\r |
437 | DRAW_FINISH_FUNC();\r |
438 | #endif\r |
439 | }\r |
440 | \r |
441 | // here we render sound if ym2612 is disabled\r |
602133e1 |
442 | if (!(PicoOpt&POPT_EN_FM) && PsndOut) {\r |
9d917eea |
443 | int len = PsndRender(0, PsndLen);\r |
8ab3e3c1 |
444 | if (PicoWriteSound) PicoWriteSound(len);\r |
445 | // clear sound buffer\r |
9d917eea |
446 | PsndClear();\r |
cc68a136 |
447 | }\r |
448 | \r |
e849512f |
449 | // a gap between flags set and vint\r |
450 | pv->pending_ints|=0x20;\r |
451 | pv->status|=8; // go into vblank\r |
bf5fbbb4 |
452 | SekRunM68k(68+4);\r |
e849512f |
453 | \r |
cc68a136 |
454 | // ---- V-Blanking period ----\r |
455 | // fix line counts\r |
456 | if(Pico.m.pal) {\r |
457 | if(pv->reg[1]&8) { // 240 lines\r |
458 | lines = line = 240;\r |
459 | sects = 3;\r |
460 | lines_step = 24;\r |
461 | } else {\r |
462 | lines = line = 224;\r |
463 | sects = 4;\r |
464 | lines_step = 22;\r |
465 | }\r |
466 | } else {\r |
467 | lines = line = 224;\r |
468 | sects = 2;\r |
469 | lines_step = 19;\r |
470 | }\r |
471 | \r |
cc68a136 |
472 | if (pv->reg[1]&0x20) SekInterrupt(6); // Set IRQ\r |
602133e1 |
473 | if (Pico.m.z80Run && (PicoOpt&POPT_EN_Z80))\r |
cc68a136 |
474 | z80_int();\r |
475 | \r |
602133e1 |
476 | while (sects)\r |
477 | {\r |
cc68a136 |
478 | lines += lines_step;\r |
479 | \r |
bf5fbbb4 |
480 | SekRunM68k(cycles_68k_vblock);\r |
cc68a136 |
481 | \r |
482 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
483 | if (PicoLineHook) PicoLineHook(lines_step);\r |
cc68a136 |
484 | line=lines;\r |
485 | \r |
486 | sects--;\r |
e849512f |
487 | if (sects && CheckIdle()) break;\r |
cc68a136 |
488 | }\r |
489 | \r |
490 | // run Z80 for remaining sections\r |
e849512f |
491 | if (sects) {\r |
cc68a136 |
492 | lines += sects*lines_step;\r |
493 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
494 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
495 | }\r |
496 | \r |
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 |
8e5427a0 |
536 | int PicoGetStat(pstat_t which)\r |
537 | {\r |
538 | switch (which)\r |
539 | {\r |
540 | case PS_PAL: return Pico.m.pal;\r |
541 | case PS_40_CELL: return Pico.video.reg[12]&1;\r |
542 | case PS_240_LINES: return Pico.m.pal && (Pico.video.reg[1]&8);\r |
543 | }\r |
544 | return 0;\r |
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 | // tmp debug: dump some stuff\r |
552 | #define bit(r, x) ((r>>x)&1)\r |
553 | void z80_debug(char *dstr);\r |
0af33fe0 |
554 | char *debugString(void)\r |
cc68a136 |
555 | {\r |
556 | #if 1\r |
557 | static char dstr[1024];\r |
0af33fe0 |
558 | struct PicoVideo *pv=&Pico.video;\r |
559 | unsigned char *reg=pv->reg, r;\r |
560 | char *dstrp;\r |
561 | \r |
562 | dstrp = dstr;\r |
563 | sprintf(dstrp, "mode set 1: %02x\n", (r=reg[0])); dstrp+=strlen(dstrp);\r |
564 | 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 |
565 | dstrp+=strlen(dstrp);\r |
566 | sprintf(dstrp, "mode set 2: %02x\n", (r=reg[1])); dstrp+=strlen(dstrp);\r |
567 | 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 |
568 | bit(r,5), bit(r,6), bit(r,7)); dstrp+=strlen(dstrp);\r |
569 | sprintf(dstrp, "mode set 3: %02x\n", (r=reg[0xB])); dstrp+=strlen(dstrp);\r |
570 | 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 |
571 | sprintf(dstrp, "mode set 4: %02x\n", (r=reg[0xC])); dstrp+=strlen(dstrp);\r |
572 | sprintf(dstrp, "interlace: %i%i, cells: %i, shadow: %i\n", bit(r,2), bit(r,1), (r&0x80) ? 40 : 32, bit(r,3));\r |
573 | dstrp+=strlen(dstrp);\r |
1dceadae |
574 | sprintf(dstrp, "scroll size: w: %i, h: %i SRAM: %i; eeprom: %i (%i)\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,\r |
575 | bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2), SRam.eeprom_type); dstrp+=strlen(dstrp);\r |
7969166e |
576 | sprintf(dstrp, "sram range: %06x-%06x, reg: %02x\n", SRam.start, SRam.end, Pico.m.sram_reg); dstrp+=strlen(dstrp);\r |
0af33fe0 |
577 | 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 |
578 | dstrp+=strlen(dstrp);\r |
7d4906bf |
579 | #if defined(EMU_C68K)\r |
3aa1e148 |
580 | sprintf(dstrp, "M68k: PC: %06x, st_flg: %x, cycles: %u\n", SekPc, PicoCpuCM68k.state_flags, SekCyclesDoneT());\r |
0af33fe0 |
581 | dstrp+=strlen(dstrp);\r |
3aa1e148 |
582 | 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 |
583 | sprintf(dstrp, "d1=%08x, a1=%08x, sr=%04x\n", PicoCpuCM68k.d[1], PicoCpuCM68k.a[1], CycloneGetSr(&PicoCpuCM68k)); dstrp+=strlen(dstrp);\r |
0af33fe0 |
584 | for(r=2; r < 8; r++) {\r |
3aa1e148 |
585 | sprintf(dstrp, "d%i=%08x, a%i=%08x\n", r, PicoCpuCM68k.d[r], r, PicoCpuCM68k.a[r]); dstrp+=strlen(dstrp);\r |
0af33fe0 |
586 | }\r |
7d4906bf |
587 | #elif defined(EMU_M68K)\r |
3aa1e148 |
588 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuMM68k.int_level>>8); dstrp+=strlen(dstrp);\r |
70357ce5 |
589 | #elif defined(EMU_F68K)\r |
3aa1e148 |
590 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuFM68k.interrupts[0]); dstrp+=strlen(dstrp);\r |
cc68a136 |
591 | #endif\r |
0af33fe0 |
592 | sprintf(dstrp, "z80Run: %i, pal: %i, frame#: %i\n", Pico.m.z80Run, Pico.m.pal, Pico.m.frame_count); dstrp+=strlen(dstrp);\r |
593 | z80_debug(dstrp); dstrp+=strlen(dstrp);\r |
594 | if (strlen(dstr) > sizeof(dstr))\r |
595 | printf("warning: debug buffer overflow (%i/%i)\n", strlen(dstr), sizeof(dstr));\r |
cc68a136 |
596 | \r |
597 | #else\r |
598 | struct PicoVideo *pvid=&Pico.video;\r |
599 | int table=0;\r |
600 | int i,u,n,link=0;\r |
601 | static char dstr[1024*8];\r |
602 | dstr[0] = 0;\r |
603 | \r |
604 | table=pvid->reg[5]&0x7f;\r |
605 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
606 | table<<=8; // Get sprite table address/2\r |
607 | \r |
608 | for (i=u=n=0; u < 80 && n < 20; u++)\r |
609 | {\r |
610 | unsigned int *sprite;\r |
611 | int code, code2, sx, sy, height;\r |
612 | \r |
613 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
614 | \r |
615 | // get sprite info\r |
616 | code = sprite[0];\r |
617 | \r |
618 | // check if it is on this line\r |
619 | sy = (code&0x1ff);//-0x80;\r |
620 | height = ((code>>24)&3)+1;\r |
621 | \r |
622 | // masking sprite?\r |
623 | code2 = sprite[1];\r |
624 | sx = (code2>>16)&0x1ff;\r |
625 | \r |
69996cb7 |
626 | printf("#%02i x: %03i y: %03i %ix%i\n", u, sx, sy, ((code>>26)&3)+1, height);\r |
cc68a136 |
627 | \r |
628 | link=(code>>16)&0x7f;\r |
629 | if(!link) break; // End of sprites\r |
630 | }\r |
631 | #endif\r |
632 | \r |
cc68a136 |
633 | return dstr;\r |
634 | }\r |
635 | #endif\r |