-
Notifications
You must be signed in to change notification settings - Fork 6
/
z80.h
694 lines (679 loc) · 10.7 KB
/
z80.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
/*
* Copyright (C) 2022-2023 nukeykt
*
* This file is part of Nuked-MD.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Z80 emulator
* Thanks:
* Antoine Bercovici:
* Z80 decap & die shot.
* Visual6502 team:
* VisualZ80 simulator.
* org, andkorzh, HardWareMan (emu-russia):
* help & support.
*/
#pragma once
#include "common.h"
#pragma pack(push, 1)
typedef struct {
int clk;
int ext_data_i;
int i_int;
int i_nmi;
int i_wait;
int i_reset;
int i_busrq;
} z80_input_t;
typedef struct {
// input
z80_input_t input, input_old;
// output
int ext_data_o;
int ext_data_o_high;
int o_mreq;
int o_halt;
int o_iorq;
int o_rd;
int o_wr;
int o_busak;
int o_m1;
int o_rfsh;
int o_addr;
int o_addr_high;
int w110; // t1
int w114; // t2
int w41; // t3
int w109; // t4
int w68; // t5
int w61; // t6
int w131; // m1
int w120; // m2
int w127; // m3
int w123; // m4
int w121; // m5
int w115; // m6
// comb
int w3;
int w10;
int w11;
int w12;
int w13;
int w14;
int w15;
int w16;
int w23;
int w24;
int w25;
int w26;
int w27;
int w28;
int w30;
int w32;
int w35;
int w36;
int w531;
int w42;
int w43;
int w45;
int w46;
int w192;
int w47;
int w49;
int w52;
int w53;
int w55;
int w57;
int w60;
int w62;
int w64;
int w65;
int w67;
int w69;
int w71;
int w72;
int w75;
int w76;
int w77;
int w79;
int w81;
int w82; // alu opcode
int w83;
int w84;
int w85;
int w86;
int w87;
int w88;
int w89;
int w90; // normal opcode?
int w91;
int w93;
int w94;
int w96; // bit opcode
int w97;
int w101;
int w102;
int w103;
int w105;
int w106;
int w108;
int w530;
int w113;
int w532;
int w116;
int w117;
int w118;
int w119;
int w132;
int w122;
int w124;
int w125;
int w126;
int w128;
int w129;
int w133;
int w135;
int w136;
int w137;
int w138;
int w139;
int w140;
int w141;
int w142;
int w143;
int w304;
int pla[99];
int w148;
int w149;
int w150;
int w151;
int w152;
int w153;
int w154;
int w155;
int w156;
int w157;
int w158;
int w159;
int w160;
int w161;
int w162;
int w163;
int w164;
int w165;
int w166;
int w167;
int w168;
int w169;
int w170;
int w171;
int w172;
int w173;
int w174;
int w175;
int w176;
int w177;
int w178;
int w179;
int w180;
int w181;
int w182;
int w183;
int w184;
int w185;
int w186;
int w187;
int w188;
int w189;
int w190;
int w191;
int w193;
int w194;
int w195;
int w196;
int w197;
int w198;
int w199;
int w200;
int w201;
int w202;
int w203;
int w204;
int w206;
int w207;
int w208;
int w209;
int w211;
int w212;
int w213;
int w214;
int w215;
int w216;
int w217;
int w218;
int w219;
int w220;
int w221;
int w222;
int w223;
int w224;
int w225;
int w226;
int w227;
int w228;
int w229;
int w230;
int w231;
int w232;
int w233;
int w234;
int w235;
int w236;
int w237;
int w238;
int w239;
int w240;
int w241;
int w242;
int w243;
int w244;
int w245;
int w246;
int w247;
int w248;
int w249;
int w250;
int w251;
int w252;
int w253;
int w254;
int w255;
int w256;
int w257;
int w258;
int w259;
int w260;
int w261;
int w262;
int w263;
int w264;
int w265;
int w266;
int w267;
int w268;
int w269;
int w270;
int w271;
int w272;
int w273;
int w274;
int w275;
int w276;
int w277;
int w278;
int w279;
int w280;
int w281;
int w282;
int w283;
int w284;
int w285;
int w286;
int w287;
int w288;
int w289;
int w290;
int w291;
int w294;
int w295;
int w296;
int w297;
int w299;
int w300;
int w306;
int w308;
int w309;
int w310;
int w311;
int w312;
int w313;
int w314;
int w315;
int w316;
int w317;
int w318;
int w329;
int w331;
int w323;
int w328;
int w302;
int w326;
int w325;
int w324;
int w333;
int w334;
int w335;
int w336;
int w337;
int w338;
int w339;
int w340;
int w342;
int w343;
int w344;
int w348;
int w349;
int w350;
int w351;
int w352;
int w353;
int w354;
int w355;
int w356;
int w357;
int w358;
int w360;
int w362;
int w363;
int w364;
int w365;
int w366;
int w367;
int w371;
int w374;
int w375;
int w376;
int w382;
int w383;
int w384;
int w385;
int w386;
int w387;
int w388;
int w389;
int w440;
int w392;
int w393;
int w394;
int w395;
int w396;
int w397;
int w398;
int w399;
int w401;
int w402;
int w403;
int w405;
int w406;
int w407;
int w408;
int w409;
int w410;
int w411;
int w412;
int w413;
int w414;
int w415;
int w421;
int w422;
int w423;
int w424;
int w426;
int w427;
int w428;
int w429;
int w432;
int w433;
int w434;
int w435;
int w436;
int w437;
int w438;
int w439;
int w443;
int w444;
int w445;
int w446;
int w447;
int w448;
int w451;
int w454;
int w455;
int w456;
int w457;
int w458;
int w459;
int w460;
int w461;
int w462;
int w463;
int w465;
int w467;
int w468;
int w469;
int w471;
int w472;
int w474;
int w475;
int w477;
int w478;
int w479;
int w480;
int w481;
int w483;
int w485;
int w486;
int w487;
int w490;
int w491;
int w492;
int w493;
int w494;
int w495;
int w497;
int w501;
int w502;
int w504;
int w505;
int w506;
int w507;
int w509;
int w512;
int w516;
int w517;
int w518;
int w519;
int w523;
int w525;
int w528;
// state
int w1;
int w2;
int l1;
int w4;
int w5;
int w6;
int w7;
int w8;
int w9;
int l2;
int l3;
int halt;
int l4; // end of instruction
int w18;
int w19; // accept NMI
int w21;
int w22;
int l5;
int l6;
int l7;
int w29;
int w31;
int l8;
int l9;
int w33;
int l10;
int l11;
int w34;
int l12;
int w37;
int w38;
int w39;
int w40;
int l13;
int w44;
int l14;
int l15;
int l16;
int w48;
int l17;
int l18;
int w50;
int w51;
int l19;
int l20;
int w54;
int w56;
int w58;
int w59;
int l21;
int l22;
int w63;
int l23;
int l24;
int w66;
int l25;
int l26;
int w73; // iff1 ???
int w74; // iff2 ???
int l27;
int w78;
int l28;
int w80;
int w92; // misc opcode
int w95;
int w98;
int w99;
int w100; // ix,iy prefix?
int l29;
int w104;
int w107;
int l30;
int w111;
int w112;
int l31;
int l32;
int l33;
int l34;
int l35;
int w130;
int l36;
int w134;
int w144;
int l37;
int l38;
int w145;
int w146; // bus 1
int w147; // opcode
int l39;
int w205;
int l40;
int w210;
int l41;
int l42;
int l43;
int w292;
int w293;
int w298;
int w301;
int w303;
int w305;
int w307;
int l44;
int w319;
int l45;
int w320;
int w321;
int w322;
int l46;
int w327;
int w330;
int l47;
int l48;
int w332;
int w341;
int w345;
int w346;
int w347;
int w359;
int w361;
int l49;
int w368;
int w369;
int w370;
int w372;
int w373;
int w377;
int w378;
int w379;
int w380;
int l50;
int l51;
int w381;
int l52;
int w390;
int w391;
int l53;
int w400;
int l54;
int l55;
int w404;
int w416;
int w417;
int w418;
int w419;
int w420;
int w425;
int l56;
int w430;
int w431;
int l57;
int l58;
int l59;
int l60;
int w441;
int w442;
int l61;
int l62;
int w449;
int w450;
int w452;
int w453;
int l63;
int l64;
int l65;
int l66;
int l67;
int l68;
int l69;
int l70;
int w464;
int l71;
int w466;
int l72;
int w470;
int w473;
int w476;
int l73;
int l74;
int l75;
int l76;
int l77;
int w484; // bus 2
int w496; // alu bus
int w498;
int w499;
int w500;
int w503;
int l78;
int w508;
int w510;
int w511;
int w513; // bus 3
int w514;
int w515;
int l79;
int regs[12];
int regs_[12][2];
int w520;
int w521;
int w522;
int l80;
int w524;
int l81;
int w526;
int w527;
int w529;
int regs2[2];
int regs2_[2][2];
int l82;
int l83;
int l84;
int bu1, bu2, bu3;
int alu_calc;
int pull1[2];
int pull2[2];
int ix;
} z80_t;
#pragma pack(pop)
void Z80_Clock(z80_t* chip, int clk);
void Z80_Clock2(z80_t *chip, int clk);