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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 |
15 | int PicoOpt=0; // disable everything by default\r |
16 | int PicoSkipFrame=0; // skip rendering frame?\r |
17 | int PicoRegionOverride = 0; // override the region detection 0: Auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r |
51a902ae |
18 | int PicoAutoRgnOrder = 0;\r |
fa283c9a |
19 | int emustatus = 0; // rapid_ym2612, multi_ym_updates\r |
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20 | void (*PicoWriteSound)(int len) = NULL; // called at the best time to send sound buffer (PsndOut) to hardware\r |
21 | void (*PicoResetHook)(void) = NULL;\r |
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22 | void (*PicoLineHook)(int count) = NULL;\r |
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23 | \r |
1dceadae |
24 | struct PicoSRAM SRam = {0,};\r |
0af33fe0 |
25 | int z80startCycle, z80stopCycle; // in 68k cycles\r |
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26 | int PicoPad[2]; // Joypads, format is SACB RLDU\r |
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27 | int PicoMCD = 0; // mega CD status: scd_started\r |
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28 | \r |
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 (PicoMCD&1)\r |
52 | PicoExitMCD();\r |
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53 | z80_exit();\r |
54 | \r |
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55 | if(SRam.data) free(SRam.data); SRam.data=0;\r |
56 | }\r |
57 | \r |
58 | int PicoReset(int hard)\r |
59 | {\r |
60 | unsigned int region=0;\r |
61 | int support=0,hw=0,i=0;\r |
62 | unsigned char pal=0;\r |
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63 | unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r |
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64 | \r |
65 | if (Pico.romsize<=0) return 1;\r |
66 | \r |
a12b1b29 |
67 | /* must call now, so that banking is reset, and correct vectors get fetched */\r |
68 | if (PicoResetHook) PicoResetHook();\r |
69 | \r |
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70 | PicoMemReset();\r |
71 | SekReset();\r |
c008977e |
72 | // 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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73 | SekSetRealTAS(PicoMCD & 1);\r |
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74 | SekCycleCntT=0;\r |
75 | z80_reset();\r |
76 | \r |
77 | // reset VDP state, VRAM and PicoMisc\r |
78 | //memset(&Pico.video,0,sizeof(Pico.video));\r |
79 | //memset(&Pico.vram,0,sizeof(Pico.vram));\r |
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80 | memset(Pico.ioports,0,sizeof(Pico.ioports)); // needed for MCD to reset properly\r |
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81 | memset(&Pico.m,0,sizeof(Pico.m));\r |
82 | Pico.video.pending_ints=0;\r |
83 | emustatus = 0;\r |
84 | \r |
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85 | if (hard) {\r |
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86 | // clear all memory of the emulated machine\r |
87 | memset(&Pico.ram,0,(unsigned int)&Pico.rom-(unsigned int)&Pico.ram);\r |
88 | }\r |
89 | \r |
90 | // default VDP register values (based on Fusion)\r |
91 | Pico.video.reg[0] = Pico.video.reg[1] = 0x04;\r |
92 | Pico.video.reg[0xc] = 0x81;\r |
93 | Pico.video.reg[0xf] = 0x02;\r |
94 | Pico.m.dirtyPal = 1;\r |
95 | \r |
96 | if(PicoRegionOverride)\r |
97 | {\r |
98 | support = PicoRegionOverride;\r |
99 | }\r |
100 | else\r |
101 | {\r |
102 | // Read cartridge region data:\r |
103 | region=PicoRead32(0x1f0);\r |
104 | \r |
105 | for (i=0;i<4;i++)\r |
106 | {\r |
107 | int c=0;\r |
108 | \r |
109 | c=region>>(i<<3); c&=0xff;\r |
110 | if (c<=' ') continue;\r |
111 | \r |
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112 | if (c=='J') support|=1;\r |
113 | else if (c=='U') support|=4;\r |
114 | else if (c=='E') support|=8;\r |
115 | else if (c=='j') {support|=1; break; }\r |
116 | else if (c=='u') {support|=4; break; }\r |
117 | else if (c=='e') {support|=8; break; }\r |
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118 | else\r |
119 | {\r |
120 | // New style code:\r |
121 | char s[2]={0,0};\r |
122 | s[0]=(char)c;\r |
123 | support|=strtol(s,NULL,16);\r |
124 | }\r |
125 | }\r |
126 | }\r |
127 | \r |
51a902ae |
128 | // auto detection order override\r |
129 | if (PicoAutoRgnOrder) {\r |
130 | if (((PicoAutoRgnOrder>>0)&0xf) & support) support = (PicoAutoRgnOrder>>0)&0xf;\r |
131 | else if (((PicoAutoRgnOrder>>4)&0xf) & support) support = (PicoAutoRgnOrder>>4)&0xf;\r |
132 | else if (((PicoAutoRgnOrder>>8)&0xf) & support) support = (PicoAutoRgnOrder>>8)&0xf;\r |
133 | }\r |
134 | \r |
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135 | // Try to pick the best hardware value for English/50hz:\r |
136 | if (support&8) { hw=0xc0; pal=1; } // Europe\r |
137 | else if (support&4) hw=0x80; // USA\r |
138 | else if (support&2) { hw=0x40; pal=1; } // Japan PAL\r |
139 | else if (support&1) hw=0x00; // Japan NTSC\r |
140 | else hw=0x80; // USA\r |
141 | \r |
142 | Pico.m.hardware=(unsigned char)(hw|0x20); // No disk attached\r |
143 | Pico.m.pal=pal;\r |
144 | Pico.video.status = 0x3408 | pal; // always set bits | vblank | pal\r |
145 | \r |
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146 | PsndReset(); // pal must be known here\r |
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147 | \r |
148 | if (PicoMCD & 1) {\r |
149 | PicoResetMCD(hard);\r |
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150 | return 0;\r |
151 | }\r |
152 | \r |
1dceadae |
153 | // reset sram state; enable sram access by default if it doesn't overlap with ROM\r |
154 | Pico.m.sram_reg=sram_reg&0x14;\r |
155 | if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r |
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156 | \r |
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157 | elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r |
158 | (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r |
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159 | \r |
160 | return 0;\r |
161 | }\r |
162 | \r |
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163 | \r |
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164 | // dma2vram settings are just hacks to unglitch Legend of Galahad (needs <= 104 to work)\r |
165 | // same for Outrunners (92-121, when active is set to 24)\r |
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166 | // 96 is VR hack\r |
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167 | static const int dma_timings[] = {\r |
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168 | 96, 167, 166, 83, // vblank: 32cell: dma2vram dma2[vs|c]ram vram_fill vram_copy\r |
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169 | 102, 205, 204, 102, // vblank: 40cell:\r |
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170 | 16, 16, 15, 8, // active: 32cell:\r |
171 | 24, 18, 17, 9 // ...\r |
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172 | };\r |
173 | \r |
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174 | static const int dma_bsycles[] = {\r |
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175 | (488<<8)/96, (488<<8)/167, (488<<8)/166, (488<<8)/83,\r |
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176 | (488<<8)/102, (488<<8)/205, (488<<8)/204, (488<<8)/102,\r |
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177 | (488<<8)/16, (488<<8)/16, (488<<8)/15, (488<<8)/8,\r |
178 | (488<<8)/24, (488<<8)/18, (488<<8)/17, (488<<8)/9\r |
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179 | };\r |
180 | \r |
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181 | PICO_INTERNAL int CheckDMA(void)\r |
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182 | {\r |
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183 | int burn = 0, xfers_can, dma_op = Pico.video.reg[0x17]>>6; // see gens for 00 and 01 modes\r |
184 | int xfers = Pico.m.dma_xfers;\r |
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185 | int dma_op1;\r |
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186 | \r |
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187 | if(!(dma_op&2)) dma_op = (Pico.video.type==1) ? 0 : 1; // setting dma_timings offset here according to Gens\r |
188 | dma_op1 = dma_op;\r |
189 | if(Pico.video.reg[12] & 1) dma_op |= 4; // 40 cell mode?\r |
190 | if(!(Pico.video.status&8)&&(Pico.video.reg[1]&0x40)) dma_op|=8; // active display?\r |
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191 | xfers_can = dma_timings[dma_op];\r |
192 | if(xfers <= xfers_can) {\r |
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193 | if(dma_op&2) Pico.video.status&=~2; // dma no longer busy\r |
194 | else {\r |
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195 | burn = xfers * dma_bsycles[dma_op] >> 8; // have to be approximate because can't afford division..\r |
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196 | }\r |
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197 | Pico.m.dma_xfers = 0;\r |
4f672280 |
198 | } else {\r |
199 | if(!(dma_op&2)) burn = 488;\r |
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200 | Pico.m.dma_xfers -= xfers_can;\r |
4f672280 |
201 | }\r |
202 | \r |
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203 | 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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204 | //dprintf("~aim: %i, cnt: %i", SekCycleAim, SekCycleCnt);\r |
205 | return burn;\r |
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206 | }\r |
207 | \r |
bf5fbbb4 |
208 | static __inline void SekRunM68k(int cyc)\r |
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209 | {\r |
210 | int cyc_do;\r |
211 | SekCycleAim+=cyc;\r |
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212 | if((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return;\r |
03e4f2a3 |
213 | #if defined(EMU_CORE_DEBUG)\r |
214 | // this means we do run-compare\r |
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215 | SekCycleCnt+=CM_compareRun(cyc_do, 0);\r |
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216 | #elif defined(EMU_C68K)\r |
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217 | PicoCpuCM68k.cycles=cyc_do;\r |
218 | CycloneRun(&PicoCpuCM68k);\r |
219 | SekCycleCnt+=cyc_do-PicoCpuCM68k.cycles;\r |
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220 | #elif defined(EMU_M68K)\r |
221 | SekCycleCnt+=m68k_execute(cyc_do);\r |
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222 | #elif defined(EMU_F68K)\r |
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223 | SekCycleCnt+=fm68k_emulate(cyc_do+1, 0);\r |
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224 | #endif\r |
225 | }\r |
226 | \r |
227 | static __inline void SekStep(void)\r |
228 | {\r |
229 | // this is required for timing sensitive stuff to work\r |
230 | int realaim=SekCycleAim; SekCycleAim=SekCycleCnt+1;\r |
03e4f2a3 |
231 | #if defined(EMU_CORE_DEBUG)\r |
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232 | SekCycleCnt+=CM_compareRun(1, 0);\r |
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233 | #elif defined(EMU_C68K)\r |
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234 | PicoCpuCM68k.cycles=1;\r |
235 | CycloneRun(&PicoCpuCM68k);\r |
236 | SekCycleCnt+=1-PicoCpuCM68k.cycles;\r |
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237 | #elif defined(EMU_M68K)\r |
238 | SekCycleCnt+=m68k_execute(1);\r |
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239 | #elif defined(EMU_F68K)\r |
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240 | SekCycleCnt+=fm68k_emulate(1, 0);\r |
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241 | #endif\r |
242 | SekCycleAim=realaim;\r |
243 | }\r |
244 | \r |
245 | static int CheckIdle(void)\r |
246 | {\r |
3aa1e148 |
247 | int i, state[0x22];\r |
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248 | \r |
249 | // See if the state is the same after 2 steps:\r |
3aa1e148 |
250 | SekState(state); SekStep(); SekStep(); SekState(state+0x11);\r |
251 | for (i = 0x10; i >= 0; i--)\r |
252 | if (state[i] != state[i+0x11]) return 0;\r |
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253 | \r |
3aa1e148 |
254 | return 1;\r |
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255 | }\r |
256 | \r |
fa283c9a |
257 | \r |
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258 | // to be called on 224 or line_sample scanlines only\r |
259 | static __inline void getSamples(int y)\r |
260 | {\r |
03a265e5 |
261 | #if SIMPLE_WRITE_SOUND\r |
e0978fa8 |
262 | if (y != 224) return;\r |
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263 | PsndRender(0, PsndLen);\r |
264 | if (PicoWriteSound) PicoWriteSound(PsndLen);\r |
265 | PsndClear();\r |
266 | #else\r |
7a93adeb |
267 | static int curr_pos = 0;\r |
268 | \r |
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269 | if(y == 224) {\r |
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270 | if(emustatus & 2)\r |
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271 | curr_pos += PsndRender(curr_pos, PsndLen-PsndLen/2);\r |
272 | else curr_pos = PsndRender(0, PsndLen);\r |
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273 | if (emustatus&1) emustatus|=2; else emustatus&=~2;\r |
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274 | if (PicoWriteSound) PicoWriteSound(curr_pos);\r |
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275 | // clear sound buffer\r |
9d917eea |
276 | PsndClear();\r |
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277 | }\r |
278 | else if(emustatus & 3) {\r |
279 | emustatus|= 2;\r |
280 | emustatus&=~1;\r |
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281 | curr_pos = PsndRender(0, PsndLen/2);\r |
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282 | }\r |
03a265e5 |
283 | #endif\r |
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284 | }\r |
285 | \r |
69996cb7 |
286 | \r |
69996cb7 |
287 | #include "PicoFrameHints.c"\r |
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288 | \r |
9a8ffeee |
289 | // helper z80 runner. Runs only if z80 is enabled at this point\r |
290 | // (z80WriteBusReq will handle the rest)\r |
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291 | static void PicoRunZ80Simple(int line_from, int line_to)\r |
292 | {\r |
9a8ffeee |
293 | int line_from_r=line_from, line_to_r=line_to, line=0;\r |
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294 | int line_sample = Pico.m.pal ? 68 : 93;\r |
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295 | \r |
9a8ffeee |
296 | if (!(PicoOpt&4) || Pico.m.z80Run == 0) line_to_r = 0;\r |
297 | else {\r |
298 | extern const unsigned short vcounts[];\r |
299 | if (z80startCycle) {\r |
300 | line = vcounts[z80startCycle>>8];\r |
301 | if (line > line_from)\r |
302 | line_from_r = line;\r |
303 | }\r |
304 | z80startCycle = SekCyclesDone();\r |
305 | }\r |
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306 | \r |
9a8ffeee |
307 | if (PicoOpt&1) {\r |
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308 | // we have ym2612 enabled, so we have to run Z80 in lines, so we could update DAC and timers\r |
9a8ffeee |
309 | for (line = line_from; line < line_to; line++) {\r |
9d917eea |
310 | Psnd_timers_and_dac(line);\r |
9a8ffeee |
311 | if ((line == 224 || line == line_sample) && PsndOut) getSamples(line);\r |
312 | if (line == 32 && PsndOut) emustatus &= ~1;\r |
313 | if (line >= line_from_r && line < line_to_r)\r |
b542be46 |
314 | z80_run_nr(228);\r |
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315 | }\r |
9a8ffeee |
316 | } else if (line_to_r-line_from_r > 0) {\r |
b542be46 |
317 | z80_run_nr(228*(line_to_r-line_from_r));\r |
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318 | // samples will be taken by caller\r |
319 | }\r |
320 | }\r |
321 | \r |
322 | // Simple frame without H-Ints\r |
323 | static int PicoFrameSimple(void)\r |
324 | {\r |
325 | struct PicoVideo *pv=&Pico.video;\r |
326 | int y=0,line=0,lines=0,lines_step=0,sects;\r |
327 | int cycles_68k_vblock,cycles_68k_block;\r |
328 | \r |
e849512f |
329 | // split to 16 run calls for active scan, for vblank split to 2 (ntsc), 3 (pal 240), 4 (pal 224)\r |
8ab3e3c1 |
330 | if (Pico.m.pal && (pv->reg[1]&8)) {\r |
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331 | if(pv->reg[1]&8) { // 240 lines\r |
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332 | cycles_68k_block = 7329; // (488*240+148)/16.0, -4\r |
333 | cycles_68k_vblock = 11640; // (72*488-148-68)/3.0, 0\r |
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334 | lines_step = 15;\r |
335 | } else {\r |
e849512f |
336 | cycles_68k_block = 6841; // (488*224+148)/16.0, -4\r |
337 | cycles_68k_vblock = 10682; // (88*488-148-68)/4.0, 0\r |
cc68a136 |
338 | lines_step = 14;\r |
339 | }\r |
340 | } else {\r |
341 | // M68k cycles/frame: 127840.71\r |
e849512f |
342 | cycles_68k_block = 6841; // (488*224+148)/16.0, -4\r |
343 | cycles_68k_vblock = 9164; // (38*488-148-68)/2.0, 0\r |
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344 | lines_step = 14;\r |
345 | }\r |
346 | \r |
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347 | // we don't emulate DMA timing in this mode\r |
348 | if (Pico.m.dma_xfers) {\r |
349 | Pico.m.dma_xfers=0;\r |
350 | Pico.video.status&=~2;\r |
351 | }\r |
352 | \r |
353 | // VDP FIFO too\r |
354 | pv->lwrite_cnt = 0;\r |
355 | Pico.video.status|=0x200;\r |
356 | \r |
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357 | Pico.m.scanline=-1;\r |
9a8ffeee |
358 | z80startCycle=0;\r |
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359 | \r |
360 | SekCyclesReset();\r |
361 | \r |
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362 | // 6 button pad: let's just say it timed out now\r |
363 | Pico.m.padTHPhase[0]=Pico.m.padTHPhase[1]=0;\r |
364 | \r |
365 | // ---- Active Scan ----\r |
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366 | pv->status&=~0x88; // clear V-Int, come out of vblank\r |
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367 | \r |
368 | // Run in sections:\r |
369 | for(sects=16; sects; sects--)\r |
370 | {\r |
371 | if (CheckIdle()) break;\r |
372 | \r |
373 | lines += lines_step;\r |
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374 | SekRunM68k(cycles_68k_block);\r |
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375 | \r |
376 | PicoRunZ80Simple(line, lines);\r |
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377 | if (PicoLineHook) PicoLineHook(lines_step);\r |
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378 | line=lines;\r |
379 | }\r |
380 | \r |
381 | // run Z80 for remaining sections\r |
382 | if(sects) {\r |
383 | int c = sects*cycles_68k_block;\r |
384 | \r |
9a8ffeee |
385 | // this "run" is for approriate line counter, etc\r |
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386 | SekCycleCnt += c;\r |
387 | SekCycleAim += c;\r |
9a8ffeee |
388 | \r |
389 | lines += sects*lines_step;\r |
390 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
391 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
392 | }\r |
393 | \r |
cc68a136 |
394 | // render screen\r |
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395 | if (!PicoSkipFrame)\r |
396 | {\r |
397 | if (!(PicoOpt&0x10))\r |
cc68a136 |
398 | // Draw the screen\r |
399 | #if CAN_HANDLE_240_LINES\r |
e849512f |
400 | if (pv->reg[1]&8) {\r |
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401 | for (y=0;y<240;y++) PicoLine(y);\r |
402 | } else {\r |
403 | for (y=0;y<224;y++) PicoLine(y);\r |
404 | }\r |
405 | #else\r |
406 | for (y=0;y<224;y++) PicoLine(y);\r |
407 | #endif\r |
408 | else PicoFrameFull();\r |
8ab3e3c1 |
409 | #ifdef DRAW_FINISH_FUNC\r |
410 | DRAW_FINISH_FUNC();\r |
411 | #endif\r |
412 | }\r |
413 | \r |
414 | // here we render sound if ym2612 is disabled\r |
415 | if (!(PicoOpt&1) && PsndOut) {\r |
9d917eea |
416 | int len = PsndRender(0, PsndLen);\r |
8ab3e3c1 |
417 | if (PicoWriteSound) PicoWriteSound(len);\r |
418 | // clear sound buffer\r |
9d917eea |
419 | PsndClear();\r |
cc68a136 |
420 | }\r |
421 | \r |
e849512f |
422 | // a gap between flags set and vint\r |
423 | pv->pending_ints|=0x20;\r |
424 | pv->status|=8; // go into vblank\r |
bf5fbbb4 |
425 | SekRunM68k(68+4);\r |
e849512f |
426 | \r |
cc68a136 |
427 | // ---- V-Blanking period ----\r |
428 | // fix line counts\r |
429 | if(Pico.m.pal) {\r |
430 | if(pv->reg[1]&8) { // 240 lines\r |
431 | lines = line = 240;\r |
432 | sects = 3;\r |
433 | lines_step = 24;\r |
434 | } else {\r |
435 | lines = line = 224;\r |
436 | sects = 4;\r |
437 | lines_step = 22;\r |
438 | }\r |
439 | } else {\r |
440 | lines = line = 224;\r |
441 | sects = 2;\r |
442 | lines_step = 19;\r |
443 | }\r |
444 | \r |
cc68a136 |
445 | if (pv->reg[1]&0x20) SekInterrupt(6); // Set IRQ\r |
e849512f |
446 | if (Pico.m.z80Run && (PicoOpt&4))\r |
cc68a136 |
447 | z80_int();\r |
448 | \r |
e849512f |
449 | while (sects) {\r |
cc68a136 |
450 | lines += lines_step;\r |
451 | \r |
bf5fbbb4 |
452 | SekRunM68k(cycles_68k_vblock);\r |
cc68a136 |
453 | \r |
454 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
455 | if (PicoLineHook) PicoLineHook(lines_step);\r |
cc68a136 |
456 | line=lines;\r |
457 | \r |
458 | sects--;\r |
e849512f |
459 | if (sects && CheckIdle()) break;\r |
cc68a136 |
460 | }\r |
461 | \r |
462 | // run Z80 for remaining sections\r |
e849512f |
463 | if (sects) {\r |
cc68a136 |
464 | lines += sects*lines_step;\r |
465 | PicoRunZ80Simple(line, lines);\r |
0ffefdb8 |
466 | if (PicoLineHook) PicoLineHook(sects*lines_step);\r |
cc68a136 |
467 | }\r |
468 | \r |
469 | return 0;\r |
470 | }\r |
471 | \r |
472 | int PicoFrame(void)\r |
473 | {\r |
474 | int acc;\r |
475 | \r |
8c1952f0 |
476 | Pico.m.frame_count++;\r |
477 | \r |
cc68a136 |
478 | if (PicoMCD & 1) {\r |
479 | PicoFrameMCD();\r |
480 | return 0;\r |
481 | }\r |
482 | \r |
483 | // be accurate if we are asked for this\r |
484 | if(PicoOpt&0x40) acc=1;\r |
485 | // don't be accurate in alternative render mode, as hint effects will not be rendered anyway\r |
486 | else if(PicoOpt&0x10) acc = 0;\r |
487 | else acc=Pico.video.reg[0]&0x10; // be accurate if hints are used\r |
488 | \r |
489 | //if(Pico.video.reg[12]&0x2) Pico.video.status ^= 0x10; // change odd bit in interlace mode\r |
490 | \r |
491 | if(!(PicoOpt&0x10))\r |
492 | PicoFrameStart();\r |
493 | \r |
494 | if(acc)\r |
495 | PicoFrameHints();\r |
496 | else PicoFrameSimple();\r |
497 | \r |
498 | return 0;\r |
499 | }\r |
500 | \r |
a12e0116 |
501 | void PicoFrameDrawOnly(void)\r |
502 | {\r |
503 | int y;\r |
504 | PicoFrameStart();\r |
505 | for (y=0;y<224;y++) PicoLine(y);\r |
506 | }\r |
507 | \r |
8e5427a0 |
508 | int PicoGetStat(pstat_t which)\r |
509 | {\r |
510 | switch (which)\r |
511 | {\r |
512 | case PS_PAL: return Pico.m.pal;\r |
513 | case PS_40_CELL: return Pico.video.reg[12]&1;\r |
514 | case PS_240_LINES: return Pico.m.pal && (Pico.video.reg[1]&8);\r |
515 | }\r |
516 | return 0;\r |
517 | }\r |
518 | \r |
66fdc0f0 |
519 | // callback to output message from emu\r |
520 | void (*PicoMessage)(const char *msg)=NULL;\r |
cc68a136 |
521 | \r |
1820b5a7 |
522 | #if 1 // defined(__DEBUG_PRINT)\r |
cc68a136 |
523 | // tmp debug: dump some stuff\r |
524 | #define bit(r, x) ((r>>x)&1)\r |
525 | void z80_debug(char *dstr);\r |
0af33fe0 |
526 | char *debugString(void)\r |
cc68a136 |
527 | {\r |
528 | #if 1\r |
529 | static char dstr[1024];\r |
0af33fe0 |
530 | struct PicoVideo *pv=&Pico.video;\r |
531 | unsigned char *reg=pv->reg, r;\r |
532 | char *dstrp;\r |
533 | \r |
534 | dstrp = dstr;\r |
535 | sprintf(dstrp, "mode set 1: %02x\n", (r=reg[0])); dstrp+=strlen(dstrp);\r |
536 | 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 |
537 | dstrp+=strlen(dstrp);\r |
538 | sprintf(dstrp, "mode set 2: %02x\n", (r=reg[1])); dstrp+=strlen(dstrp);\r |
539 | 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 |
540 | bit(r,5), bit(r,6), bit(r,7)); dstrp+=strlen(dstrp);\r |
541 | sprintf(dstrp, "mode set 3: %02x\n", (r=reg[0xB])); dstrp+=strlen(dstrp);\r |
542 | 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 |
543 | sprintf(dstrp, "mode set 4: %02x\n", (r=reg[0xC])); dstrp+=strlen(dstrp);\r |
544 | sprintf(dstrp, "interlace: %i%i, cells: %i, shadow: %i\n", bit(r,2), bit(r,1), (r&0x80) ? 40 : 32, bit(r,3));\r |
545 | dstrp+=strlen(dstrp);\r |
1dceadae |
546 | sprintf(dstrp, "scroll size: w: %i, h: %i SRAM: %i; eeprom: %i (%i)\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,\r |
547 | bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2), SRam.eeprom_type); dstrp+=strlen(dstrp);\r |
7969166e |
548 | sprintf(dstrp, "sram range: %06x-%06x, reg: %02x\n", SRam.start, SRam.end, Pico.m.sram_reg); dstrp+=strlen(dstrp);\r |
0af33fe0 |
549 | 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 |
550 | dstrp+=strlen(dstrp);\r |
7d4906bf |
551 | #if defined(EMU_C68K)\r |
3aa1e148 |
552 | sprintf(dstrp, "M68k: PC: %06x, st_flg: %x, cycles: %u\n", SekPc, PicoCpuCM68k.state_flags, SekCyclesDoneT());\r |
0af33fe0 |
553 | dstrp+=strlen(dstrp);\r |
3aa1e148 |
554 | 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 |
555 | sprintf(dstrp, "d1=%08x, a1=%08x, sr=%04x\n", PicoCpuCM68k.d[1], PicoCpuCM68k.a[1], CycloneGetSr(&PicoCpuCM68k)); dstrp+=strlen(dstrp);\r |
0af33fe0 |
556 | for(r=2; r < 8; r++) {\r |
3aa1e148 |
557 | sprintf(dstrp, "d%i=%08x, a%i=%08x\n", r, PicoCpuCM68k.d[r], r, PicoCpuCM68k.a[r]); dstrp+=strlen(dstrp);\r |
0af33fe0 |
558 | }\r |
7d4906bf |
559 | #elif defined(EMU_M68K)\r |
3aa1e148 |
560 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuMM68k.int_level>>8); dstrp+=strlen(dstrp);\r |
70357ce5 |
561 | #elif defined(EMU_F68K)\r |
3aa1e148 |
562 | sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuFM68k.interrupts[0]); dstrp+=strlen(dstrp);\r |
cc68a136 |
563 | #endif\r |
0af33fe0 |
564 | sprintf(dstrp, "z80Run: %i, pal: %i, frame#: %i\n", Pico.m.z80Run, Pico.m.pal, Pico.m.frame_count); dstrp+=strlen(dstrp);\r |
565 | z80_debug(dstrp); dstrp+=strlen(dstrp);\r |
566 | if (strlen(dstr) > sizeof(dstr))\r |
567 | printf("warning: debug buffer overflow (%i/%i)\n", strlen(dstr), sizeof(dstr));\r |
cc68a136 |
568 | \r |
569 | #else\r |
570 | struct PicoVideo *pvid=&Pico.video;\r |
571 | int table=0;\r |
572 | int i,u,n,link=0;\r |
573 | static char dstr[1024*8];\r |
574 | dstr[0] = 0;\r |
575 | \r |
576 | table=pvid->reg[5]&0x7f;\r |
577 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
578 | table<<=8; // Get sprite table address/2\r |
579 | \r |
580 | for (i=u=n=0; u < 80 && n < 20; u++)\r |
581 | {\r |
582 | unsigned int *sprite;\r |
583 | int code, code2, sx, sy, height;\r |
584 | \r |
585 | sprite=(unsigned int *)(Pico.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
586 | \r |
587 | // get sprite info\r |
588 | code = sprite[0];\r |
589 | \r |
590 | // check if it is on this line\r |
591 | sy = (code&0x1ff);//-0x80;\r |
592 | height = ((code>>24)&3)+1;\r |
593 | \r |
594 | // masking sprite?\r |
595 | code2 = sprite[1];\r |
596 | sx = (code2>>16)&0x1ff;\r |
597 | \r |
69996cb7 |
598 | printf("#%02i x: %03i y: %03i %ix%i\n", u, sx, sy, ((code>>26)&3)+1, height);\r |
cc68a136 |
599 | \r |
600 | link=(code>>16)&0x7f;\r |
601 | if(!link) break; // End of sprites\r |
602 | }\r |
603 | #endif\r |
604 | \r |
cc68a136 |
605 | return dstr;\r |
606 | }\r |
607 | #endif\r |