![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to custom.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [UNIX Amiga Emulator] / uae / src|
Return to custom.c CVS log | Up to [UNIX Amiga Emulator] / uae / src |
1.1 root 1: /*
2: * UAE - The Un*x Amiga Emulator
1.1.1.3 root 3: *
1.1 root 4: * Custom chip emulation
1.1.1.3 root 5: *
1.1.1.4 root 6: * Copyright 1995-1998 Bernd Schmidt
1.1.1.2 root 7: * Copyright 1995 Alessandro Bissacco
1.1 root 8: */
9:
10: #include "sysconfig.h"
11: #include "sysdeps.h"
12:
13: #include <ctype.h>
14: #include <assert.h>
15:
16: #include "config.h"
17: #include "options.h"
1.1.1.3 root 18: #include "threaddep/penguin.h"
19: #include "uae.h"
20: #include "gensound.h"
21: #include "sounddep/sound.h"
1.1 root 22: #include "events.h"
23: #include "memory.h"
24: #include "custom.h"
1.1.1.2 root 25: #include "readcpu.h"
1.1 root 26: #include "newcpu.h"
27: #include "cia.h"
28: #include "disk.h"
29: #include "blitter.h"
30: #include "xwin.h"
1.1.1.3 root 31: #include "joystick.h"
32: #include "audio.h"
1.1 root 33: #include "keybuf.h"
34: #include "serial.h"
1.1.1.2 root 35: #include "osemu.h"
1.1.1.3 root 36: #include "autoconf.h"
37: #include "gui.h"
38: #include "picasso96.h"
1.1.1.4 root 39: #include "drawing.h"
1.1.1.2 root 40:
1.1.1.6 root 41: static unsigned int n_consecutive_skipped = 0;
42: static unsigned int total_skipped = 0;
43:
1.1.1.3 root 44: #define SPRITE_COLLISIONS
1.1.1.2 root 45:
1.1.1.3 root 46: /* Mouse and joystick emulation */
1.1.1.2 root 47:
1.1.1.3 root 48: int buttonstate[3];
49: static int mouse_x, mouse_y;
50: int joy0button, joy1button;
51: unsigned int joy0dir, joy1dir;
52:
53: /* Events */
1.1 root 54:
1.1.1.4 root 55: unsigned long int cycles, nextevent, is_lastline;
56: static int rpt_did_reset;
1.1.1.2 root 57: struct ev eventtab[ev_max];
58:
1.1.1.3 root 59: frame_time_t vsynctime, vsyncmintime;
60:
1.1.1.4 root 61: static int vpos;
62: static uae_u16 lof;
63: static int next_lineno;
64: static enum nln_how nextline_how;
65: static int lof_changed = 0;
1.1 root 66:
1.1.1.2 root 67: static const int dskdelay = 2; /* FIXME: ??? */
1.1 root 68:
1.1.1.3 root 69: static uae_u32 sprtaba[256],sprtabb[256];
70:
1.1.1.2 root 71: /*
72: * Hardware registers of all sorts.
73: */
1.1 root 74:
1.1.1.4 root 75: static void custom_wput_1 (int, uaecptr, uae_u32) REGPARAM;
76:
1.1.1.3 root 77: static uae_u16 cregs[256];
1.1 root 78:
1.1.1.3 root 79: uae_u16 intena,intreq;
80: uae_u16 dmacon;
81: uae_u16 adkcon; /* used by audio code */
1.1 root 82:
1.1.1.3 root 83: static uae_u32 cop1lc,cop2lc,copcon;
1.1.1.7 ! root 84:
! 85: int maxhpos = MAXHPOS_PAL;
! 86: int maxvpos = MAXVPOS_PAL;
! 87: int minfirstline = MINFIRSTLINE_PAL;
! 88: int vblank_endline = VBLANK_ENDLINE_PAL;
! 89: int vblank_hz = VBLANK_HZ_PAL;
! 90: unsigned long syncbase;
! 91: static int fmode;
! 92: static unsigned int beamcon0, new_beamcon0;
! 93: static int ntscmode = 0;
! 94:
! 95: #define MAX_SPRITES 32
1.1 root 96:
1.1.1.2 root 97: /* This is but an educated guess. It seems to be correct, but this stuff
98: * isn't documented well. */
1.1.1.3 root 99: enum sprstate { SPR_stop, SPR_restart, SPR_waiting_start, SPR_waiting_stop };
100: static enum sprstate sprst[8];
101: static int spron[8];
102: static uaecptr sprpt[8];
1.1.1.2 root 103: static int sprxpos[8], sprvstart[8], sprvstop[8];
1.1 root 104:
1.1.1.7 ! root 105: static unsigned int sprdata[MAX_SPRITES], sprdatb[MAX_SPRITES], sprctl[MAX_SPRITES], sprpos[MAX_SPRITES];
! 106: static int sprarmed[MAX_SPRITES], sprite_last_drawn_at[MAX_SPRITES];
! 107: static int last_sprite_point, nr_armed;
! 108:
1.1.1.6 root 109: static uae_u32 bpl1dat, bpl2dat, bpl3dat, bpl4dat, bpl5dat, bpl6dat, bpl7dat, bpl8dat;
110: static uae_s16 bpl1mod, bpl2mod;
1.1 root 111:
1.1.1.3 root 112: static uaecptr bplpt[8];
1.1.1.2 root 113: #ifndef SMART_UPDATE
114: static char *real_bplpt[8];
115: #endif
1.1 root 116:
117: /*static int blitcount[256]; blitter debug */
118:
1.1.1.2 root 119: static struct color_entry current_colors;
1.1.1.6 root 120: static unsigned int bplcon0, bplcon1, bplcon2, bplcon3, bplcon4;
1.1.1.3 root 121: static int nr_planes_from_bplcon0, corrected_nr_planes_from_bplcon0;
1.1.1.4 root 122: static unsigned int diwstrt, diwstop, diwhigh;
123: static int diwhigh_written;
124: static unsigned int ddfstrt, ddfstop;
1.1.1.7 ! root 125:
1.1.1.3 root 126: static uae_u32 dskpt;
1.1.1.6 root 127: static uae_u16 dsklen, dsksync;
1.1.1.4 root 128: static int dsklength;
1.1 root 129:
1.1.1.4 root 130: /* The display and data fetch windows */
1.1 root 131:
1.1.1.4 root 132: enum diw_states
133: {
134: DIW_waiting_start, DIW_waiting_stop
135: };
1.1 root 136:
1.1.1.6 root 137: static int plffirstline, plflastline, plfstrt, plfstop, plflinelen;
138: int diwfirstword, diwlastword;
1.1.1.4 root 139: static enum diw_states diwstate, hdiwstate;
1.1 root 140:
1.1.1.4 root 141: /* Sprite collisions */
142: uae_u16 clxdat, clxcon;
143: int clx_sprmask;
144:
145: enum copper_states {
146: COP_stop,
147: COP_rdelay1, COP_read1, COP_read2,
148: COP_bltwait,
149: COP_wait1, COP_wait1b, COP_wait2,
150: };
151:
152: struct copper {
153: /* The current instruction words. */
154: unsigned int i1, i2;
155: enum copper_states state;
156: /* Instruction pointer. */
157: uaecptr ip;
158: int hpos, vpos, count;
159: unsigned int ignore_next;
160: unsigned int do_move;
161: enum diw_states vdiw;
162: };
163:
164: static struct copper cop_state;
1.1 root 165:
1.1.1.4 root 166: static void prepare_copper_1 (void);
167:
168: int dskdmaen; /* used in cia.c */
1.1 root 169:
170: /*
171: * Statistics
172: */
173:
1.1.1.2 root 174: /* Used also by bebox.cpp */
1.1.1.6 root 175: unsigned long int msecs = 0, frametime = 0, lastframetime = 0, timeframes = 0;
1.1 root 176: static unsigned long int seconds_base;
177: int bogusframe;
178:
1.1.1.4 root 179:
180: static int current_change_set;
181:
182: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
183: /* sam: Those arrays uses around 7Mb of BSS... That seems */
184: /* too much for AmigaDOS (uae crashes as soon as one loads */
185: /* it. So I use a different strategy here (realloc the */
186: /* arrays when needed. That strategy might be usefull for */
187: /* computer with low memory. */
188: struct sprite_draw *sprite_positions[2];
189: struct color_change *color_changes[2];
190: struct delay_change *delay_changes;
191: static int max_sprite_draw = 400;
192: static int delta_sprite_draw = 0;
193: static int max_color_change = 400;
194: static int delta_color_change = 0;
195: static int max_delay_change = 100;
196: static int delta_delay_change = 0;
197: #else
198: struct sprite_draw sprite_positions[2][MAX_REG_CHANGE];
199: struct color_change color_changes[2][MAX_REG_CHANGE];
200: /* We don't remember those across frames, that would be too much effort.
201: * We simply redraw the line whenever we see one of these. */
202: struct delay_change delay_changes[MAX_REG_CHANGE];
203: #endif
204:
1.1.1.7 ! root 205: struct decision line_decisions[2 * (MAXVPOS + 1) + 1];
! 206: struct draw_info line_drawinfo[2][2 * (MAXVPOS + 1) + 1];
! 207: struct color_entry color_tables[2][(MAXVPOS + 1) * 2];
1.1.1.4 root 208:
209: struct sprite_draw *curr_sprite_positions, *prev_sprite_positions;
210: struct color_change *curr_color_changes, *prev_color_changes;
211: struct draw_info *curr_drawinfo, *prev_drawinfo;
212: struct color_entry *curr_color_tables, *prev_color_tables;
213:
214: static int next_color_change, next_sprite_draw, next_delay_change;
215: static int next_color_entry, remembered_color_entry;
216: static int color_src_match, color_dest_match, color_compare_result;
217:
218: /* These few are only needed during/at the end of the scanline, and don't
219: * have to be remembered. */
1.1.1.7 ! root 220: static int decided_bpl1mod, decided_bpl2mod, decided_nr_planes, decided_res;
1.1.1.4 root 221:
1.1.1.5 root 222: static char thisline_changed;
223:
1.1.1.4 root 224:
225: #ifdef SMART_UPDATE
1.1.1.5 root 226: #define MARK_LINE_CHANGED do { thisline_changed = 1; } while (0)
1.1.1.4 root 227: #else
1.1.1.5 root 228: #define MARK_LINE_CHANGED do { ; } while (0)
1.1.1.4 root 229: #endif
230:
231: static struct decision thisline_decision;
232: static int modulos_added, plane_decided, color_decided, very_broken_program;
233:
1.1 root 234: /*
235: * helper functions
236: */
237:
1.1.1.4 root 238: int rpt_available = 0;
1.1.1.3 root 239:
1.1.1.4 root 240: void reset_frame_rate_hack (void)
241: {
242: if (currprefs.m68k_speed != -1)
243: return;
244:
245: if (! rpt_available) {
246: currprefs.m68k_speed = 0;
247: return;
248: }
1.1.1.3 root 249:
1.1.1.4 root 250: rpt_did_reset = 1;
251: is_lastline = 0;
252: vsyncmintime = read_processor_time() + vsynctime;
253: write_log ("Resetting frame rate hack\n");
254: }
1.1 root 255:
1.1.1.4 root 256: static __inline__ void prepare_copper (void)
1.1 root 257: {
1.1.1.4 root 258: if (cop_state.vpos > vpos
259: || cop_state.state == COP_stop)
260: {
261: eventtab[ev_copper].active = 0;
262: return;
263: }
264: prepare_copper_1 ();
1.1.1.3 root 265: }
266:
267: void check_prefs_changed_custom (void)
268: {
1.1.1.7 ! root 269: currprefs.gfx_framerate = changed_prefs.gfx_framerate;
1.1.1.3 root 270: /* Not really the right place... */
1.1.1.6 root 271: if (currprefs.jport0 != changed_prefs.jport0
272: || currprefs.jport1 != changed_prefs.jport1) {
273: currprefs.jport0 = changed_prefs.jport0;
274: currprefs.jport1 = changed_prefs.jport1;
1.1.1.3 root 275: joystick_setting_changed ();
1.1 root 276: }
1.1.1.3 root 277: currprefs.immediate_blits = changed_prefs.immediate_blits;
278: currprefs.blits_32bit_enabled = changed_prefs.blits_32bit_enabled;
279:
1.1 root 280: }
281:
1.1.1.3 root 282: static __inline__ void setclr (uae_u16 *p, uae_u16 val)
1.1 root 283: {
1.1.1.6 root 284: if (val & 0x8000)
1.1 root 285: *p |= val & 0x7FFF;
1.1.1.6 root 286: else
1.1 root 287: *p &= ~val;
288: }
289:
1.1.1.3 root 290: __inline__ int current_hpos (void)
1.1 root 291: {
292: return cycles - eventtab[ev_hsync].oldcycles;
293: }
294:
1.1.1.3 root 295: static __inline__ uae_u8 *pfield_xlateptr (uaecptr plpt, int bytecount)
1.1.1.2 root 296: {
1.1.1.4 root 297: if (!chipmem_bank.check (plpt, bytecount)) {
1.1.1.2 root 298: static int count = 0;
1.1.1.3 root 299: if (!count)
300: count++, write_log ("Warning: Bad playfield pointer\n");
1.1.1.2 root 301: return NULL;
302: }
1.1.1.4 root 303: return chipmem_bank.xlateaddr (plpt);
1.1.1.2 root 304: }
305:
1.1.1.6 root 306: static __inline__ void docols (struct color_entry *colentry)
1.1.1.3 root 307: {
308: #if AGA_CHIPSET == 0
309: int i;
310: for (i = 0; i < 32; i++) {
311: int v = colentry->color_regs[i];
312: if (v < 0 || v > 4095)
313: continue;
314: colentry->acolors[i] = xcolors[v];
315: }
316: #endif
317: }
318:
319: void notice_new_xcolors (void)
320: {
321: int i;
322:
323: docols(¤t_colors);
1.1.1.4 root 324: /* docols(&colors_for_drawing);*/
1.1.1.7 ! root 325: for (i = 0; i < (MAXVPOS + 1)*2; i++) {
1.1.1.3 root 326: docols(color_tables[0]+i);
327: docols(color_tables[1]+i);
328: }
329: }
330:
1.1.1.4 root 331: static void do_sprites (int currvp, int currhp);
1.1.1.2 root 332:
333: static void remember_ctable (void)
334: {
335: if (remembered_color_entry == -1) {
336: /* The colors changed since we last recorded a color map. Record a
337: * new one. */
338: memcpy (curr_color_tables + next_color_entry, ¤t_colors, sizeof current_colors);
339: remembered_color_entry = next_color_entry++;
340: }
341: thisline_decision.ctable = remembered_color_entry;
342: if (color_src_match == -1 || color_dest_match != remembered_color_entry
343: || line_decisions[next_lineno].ctable != color_src_match)
344: {
345: /* The remembered comparison didn't help us - need to compare again. */
346: int oldctable = line_decisions[next_lineno].ctable;
347: int changed = 0;
348:
1.1.1.3 root 349: if (oldctable == -1) {
1.1.1.2 root 350: changed = 1;
351: color_src_match = color_dest_match = -1;
352: } else {
1.1.1.3 root 353: color_compare_result = memcmp (&prev_color_tables[oldctable].color_regs,
354: ¤t_colors.color_regs,
355: sizeof current_colors.color_regs) != 0;
356: if (color_compare_result)
357: changed = 1;
358: color_src_match = oldctable;
1.1.1.2 root 359: color_dest_match = remembered_color_entry;
1.1.1.3 root 360: }
1.1.1.5 root 361: thisline_changed |= changed;
1.1.1.3 root 362: } else {
363: /* We know the result of the comparison */
364: if (color_compare_result)
1.1.1.5 root 365: thisline_changed = 1;
1.1.1.3 root 366: }
367: }
368:
369: static void remember_ctable_for_border (void)
370: {
371: remember_ctable ();
1.1.1.2 root 372: }
373:
1.1.1.3 root 374: /* Called to determine the state of the horizontal display window state
375: * machine at the current position. It might have changed since we last
376: * checked. */
1.1.1.4 root 377: static void decide_diw (int hpos)
1.1.1.2 root 378: {
1.1.1.3 root 379: if (hdiwstate == DIW_waiting_start && thisline_decision.diwfirstword == -1
1.1.1.4 root 380: && PIXEL_XPOS (hpos) >= diwfirstword)
1.1.1.3 root 381: {
1.1.1.2 root 382: thisline_decision.diwfirstword = diwfirstword;
1.1.1.3 root 383: hdiwstate = DIW_waiting_stop;
1.1.1.2 root 384: /* Decide playfield delays only at DIW start, because they don't matter before and
385: * some programs change them after DDF start but before DIW start. */
386: thisline_decision.bplcon1 = bplcon1;
387: if (thisline_decision.diwfirstword != line_decisions[next_lineno].diwfirstword)
1.1.1.5 root 388: MARK_LINE_CHANGED;
1.1.1.2 root 389: thisline_decision.diwlastword = -1;
390: }
1.1.1.3 root 391: if (hdiwstate == DIW_waiting_stop && thisline_decision.diwlastword == -1
1.1.1.4 root 392: && PIXEL_XPOS (hpos) >= diwlastword)
1.1.1.3 root 393: {
1.1.1.2 root 394: thisline_decision.diwlastword = diwlastword;
1.1.1.3 root 395: hdiwstate = DIW_waiting_start;
1.1.1.2 root 396: if (thisline_decision.diwlastword != line_decisions[next_lineno].diwlastword)
1.1.1.5 root 397: MARK_LINE_CHANGED;
1.1.1.2 root 398: }
399: }
400:
1.1.1.4 root 401: /* Called when we know that the line is not in the border and we want to draw
402: * it. The data fetch starting position and length are passed as parameters. */
1.1.1.2 root 403: static __inline__ void decide_as_playfield (int startpos, int len)
404: {
405: thisline_decision.which = 1;
406:
407: /* The latter condition might be able to happen in interlaced frames. */
408: if (vpos >= minfirstline && (thisframe_first_drawn_line == -1 || vpos < thisframe_first_drawn_line))
409: thisframe_first_drawn_line = vpos;
410: thisframe_last_drawn_line = vpos;
411:
412: thisline_decision.plfstrt = startpos;
413: thisline_decision.plflinelen = len;
414:
415: /* These are for comparison. */
416: thisline_decision.bplcon0 = bplcon0;
417: thisline_decision.bplcon2 = bplcon2;
418: #if AGA_CHIPSET == 1
419: thisline_decision.bplcon4 = bplcon4;
420: #endif
421:
422: #ifdef SMART_UPDATE
423: if (line_decisions[next_lineno].plfstrt != thisline_decision.plfstrt
424: || line_decisions[next_lineno].plflinelen != thisline_decision.plflinelen
425: || line_decisions[next_lineno].bplcon0 != thisline_decision.bplcon0
426: || line_decisions[next_lineno].bplcon2 != thisline_decision.bplcon2
427: #if AGA_CHIPSET == 1
428: || line_decisions[next_lineno].bplcon4 != thisline_decision.bplcon4
429: #endif
430: )
431: #endif /* SMART_UPDATE */
1.1.1.5 root 432: thisline_changed = 1;
1.1.1.2 root 433: }
434:
1.1.1.3 root 435: /* Called when we already decided whether the line is playfield or border,
436: * but are no longer sure that this was such a good idea. This can make a
1.1.1.4 root 437: * difference only for very badly written software.
438: *
439: * We try to handle two cases:
440: * a) bitplane DMA gets turned off during a line which was decided as plane
441: * b) bitplane DMA turns on for all or some planes, either after the line was
442: * decided as border, or after we made an incorrect nr_planes decision.
443: *
444: * Examples of programs which need this: Majic 12 "Ray of Hope 2" demo
445: * (final large scrolltext) and Masterblazer (menu screen).
446: *
447: * There's no hope of catching all cases; we'd need a cycle based emulation
448: * for that. I'm getting increasingly convinced that that would be a good
449: * idea.
450: */
451: static int broken_plane_sub[8];
452:
453: static void init_broken_program (void)
1.1.1.2 root 454: {
1.1.1.4 root 455: int i;
456: if (very_broken_program)
457: return;
458: very_broken_program = 1;
459: for (i = 0; i < 8; i++)
460: broken_plane_sub[i] = i >= decided_nr_planes || thisline_decision.which != 1 ? -1 : 0;
461: }
462:
463: static void adjust_broken_program (int hpos)
464: {
465: int tmp1, tmp2;
466: int i;
1.1.1.7 ! root 467: if (decided_res == RES_HIRES) {
1.1.1.4 root 468: tmp1 = hpos & 3;
469: tmp2 = hpos & ~3;
1.1.1.7 ! root 470: } else if (decided_res == RES_SUPERHIRES) {
! 471: tmp1 = hpos & 1;
! 472: tmp2 = hpos & ~1;
1.1.1.4 root 473: } else {
474: tmp1 = hpos & 7;
475: tmp2 = hpos & ~7;
476: }
477: for (i = 0; i < decided_nr_planes; i++) {
478: if (broken_plane_sub[i] != -1)
479: continue;
1.1.1.7 ! root 480: /* FIXME: superhires, AGA playfields */
! 481: /* Actually, I don't want to support this crap for AGA if we can avoid it. */
! 482: if (decided_res == RES_HIRES) {
1.1.1.4 root 483: broken_plane_sub[i] = (tmp2 - thisline_decision.plfstrt) / 4 * 2;
484: switch (i) {
485: case 3: broken_plane_sub[i] += 2; break; /* @@@ break was missing */
486: case 2: broken_plane_sub[i] += (tmp1 >= 3 ? 2 : 0); break;
487: case 1: broken_plane_sub[i] += (tmp1 >= 2 ? 2 : 0); break;
488: case 0: break;
489: }
490: } else {
491: broken_plane_sub[i] = (tmp2 - thisline_decision.plfstrt) / 8 * 2;
492: switch (i) {
493: case 5: broken_plane_sub[i] += (tmp1 >= 3 ? 2 : 0); break;
494: case 4: broken_plane_sub[i] += (tmp1 >= 7 ? 2 : 0); break;
495: case 3: broken_plane_sub[i] += (tmp1 >= 2 ? 2 : 0); break;
496: case 2: broken_plane_sub[i] += (tmp1 >= 6 ? 2 : 0); break;
497: case 1: broken_plane_sub[i] += (tmp1 >= 4 ? 2 : 0); break;
498: case 0: break;
499: }
500: }
501: }
502: }
1.1.1.2 root 503:
1.1.1.7 ! root 504: static __inline__ void set_decided_res (void)
! 505: {
! 506: decided_res = RES_LORES;
! 507: if (bplcon0 & 0x8000)
! 508: decided_res = RES_HIRES;
! 509: if (bplcon0 & 0x40)
! 510: decided_res = RES_SUPERHIRES;
! 511: }
! 512:
1.1.1.4 root 513: static __inline__ void post_decide_line (int hpos)
514: {
515: if (thisline_decision.which == 1
516: && hpos < thisline_decision.plfstrt + thisline_decision.plflinelen
1.1.1.6 root 517: && (GET_PLANES (bplcon0) == 0 || !dmaen (DMA_BITPLANE)))
1.1.1.2 root 518: {
519: /* This is getting gross... */
1.1.1.4 root 520: thisline_decision.plflinelen = hpos - thisline_decision.plfstrt;
1.1.1.2 root 521: thisline_decision.plflinelen &= 7;
522: if (thisline_decision.plflinelen == 0)
523: thisline_decision.which = -1;
524: /* ... especially THIS! */
525: modulos_added = 1;
526: return;
527: }
1.1.1.3 root 528:
1.1.1.4 root 529: if (diwstate == DIW_waiting_start
1.1.1.6 root 530: || GET_PLANES (bplcon0) == 0
1.1.1.4 root 531: || !dmaen (DMA_BITPLANE)
532: || hpos >= thisline_decision.plfstrt + thisline_decision.plflinelen)
1.1.1.2 root 533: return;
1.1.1.4 root 534:
535: if (thisline_decision.which == 1
536: && hpos > thisline_decision.plfstrt
537: && decided_nr_planes < nr_planes_from_bplcon0)
538: {
1.1.1.7 ! root 539: set_decided_res ();
1.1.1.4 root 540: init_broken_program ();
541: decided_nr_planes = nr_planes_from_bplcon0;
1.1.1.6 root 542: thisline_decision.bplcon0 &= 0xFEF;
543: thisline_decision.bplcon0 |= bplcon0 & 0xF010;
1.1.1.4 root 544: adjust_broken_program (hpos);
1.1.1.5 root 545: MARK_LINE_CHANGED; /* Play safe. */
1.1.1.4 root 546: return;
547: }
548:
549: if (thisline_decision.which != -1)
550: return;
551:
1.1.1.2 root 552: #if 0 /* Can't warn because Kickstart 1.3 does it at reset time ;-) */
1.1.1.4 root 553: {
554: static int warned = 0;
555: if (!warned) {
556: write_log ("That program you are running is _really_ broken.\n");
557: warned = 1;
558: }
1.1.1.2 root 559: }
560: #endif
1.1.1.4 root 561: init_broken_program ();
1.1.1.2 root 562:
1.1.1.3 root 563: decided_nr_planes = nr_planes_from_bplcon0;
1.1.1.6 root 564: thisline_decision.bplcon0 &= 0xFEF;
565: thisline_decision.bplcon0 |= bplcon0 & 0xF010;
1.1.1.2 root 566:
1.1.1.5 root 567: MARK_LINE_CHANGED; /* Play safe. */
1.1.1.4 root 568: decide_as_playfield (plfstrt, plflinelen);
569: adjust_broken_program (hpos);
1.1.1.2 root 570: }
571:
1.1.1.4 root 572: static void decide_line_1 (int hpos)
1.1.1.2 root 573: {
1.1.1.4 root 574: do_sprites (vpos, hpos);
1.1.1.2 root 575:
576: /* Surprisingly enough, this seems to be correct here - putting this into
577: * decide_diw() results in garbage. */
578: if (diwstate == DIW_waiting_start && vpos == plffirstline) {
579: diwstate = DIW_waiting_stop;
580: }
581: if (diwstate == DIW_waiting_stop && vpos == plflastline) {
582: diwstate = DIW_waiting_start;
583: }
584:
585: if (framecnt != 0) {
586: /* thisline_decision.which = -2; This doesn't do anything but hurt, I think. */
587: return;
588: }
1.1.1.3 root 589:
590: if (!dmaen(DMA_BITPLANE) || diwstate == DIW_waiting_start || nr_planes_from_bplcon0 == 0) {
1.1.1.2 root 591: /* We don't want to draw this one. */
592: thisline_decision.which = -1;
1.1.1.3 root 593: thisline_decision.plfstrt = plfstrt;
594: thisline_decision.plflinelen = plflinelen;
1.1.1.2 root 595: return;
596: }
597:
1.1.1.7 ! root 598: set_decided_res ();
1.1.1.3 root 599: decided_nr_planes = nr_planes_from_bplcon0;
1.1.1.2 root 600: #if 0
1.1.1.3 root 601: /* The blitter gets slower if there's high bitplane activity.
1.1.1.2 root 602: * @@@ but the values must be different. FIXME */
603: if (bltstate != BLT_done
1.1.1.7 ! root 604: && ((decided_res == RES_HIRES && decided_nr_planes > 2)
! 605: || (decided_res == RES_LORES && decided_nr_planes > 4)))
1.1.1.2 root 606: {
607: int pl = decided_nr_planes;
608: unsigned int n = (eventtab[ev_blitter].evtime-cycles);
609: if (n > plflinelen)
610: n = plflinelen;
611: n >>= 1;
1.1.1.7 ! root 612: if (decided_res == RES_HIRES)
1.1.1.2 root 613: pl <<= 1;
614: if (pl == 8)
615: eventtab[ev_blitter].evtime += plflinelen;
616: else if (pl == 6)
617: eventtab[ev_blitter].evtime += n*2;
618: else if (pl == 5)
619: eventtab[ev_blitter].evtime += n*3/2;
620: events_schedule();
621: }
622: #endif
623: decide_as_playfield (plfstrt, plflinelen);
624: }
625:
1.1.1.3 root 626: /* Main entry point for deciding how to draw a line. May either do
627: * nothing, decide the line as border, or decide the line as playfield. */
1.1.1.4 root 628: static __inline__ void decide_line (int hpos)
1.1.1.2 root 629: {
1.1.1.4 root 630: if (thisline_decision.which == 0 && hpos >= plfstrt)
631: decide_line_1 (hpos);
1.1.1.2 root 632: }
633:
1.1.1.3 root 634: /* Called when a color is about to be changed (write to a color register),
635: * but the new color has not been entered into the table yet. */
1.1.1.4 root 636: static void record_color_change (int hpos, int regno, unsigned long value)
1.1.1.3 root 637: {
638: /* Early positions don't appear on-screen. */
1.1.1.4 root 639: if (framecnt != 0 || vpos < minfirstline || hpos < 0x18
1.1.1.3 root 640: /*|| currprefs.emul_accuracy == 0*/)
641: return;
642:
1.1.1.4 root 643: decide_diw (hpos);
644: decide_line (hpos);
1.1.1.3 root 645:
646: /* See if we can record the color table, but have not done so yet.
647: * @@@ There might be a minimal performance loss in case someone changes
648: * a color exactly at the start of the DIW. I don't think it can actually
649: * fail to work even in this case, but I'm not 100% sure.
650: * @@@ There might be a slightly larger performance loss if we're drawing
651: * this line as border... especially if there are changes in colors != 0
652: * we might end up setting line_changed for no reason. FIXME */
653: if (thisline_decision.diwfirstword >= 0
654: && thisline_decision.which != 0)
655: {
656: if (thisline_decision.ctable == -1)
657: remember_ctable ();
658: }
659:
660: /* Changes outside the DIW can be ignored if the modified color is not the
661: * background color, or if the accuracy is < 2. */
662: if ((regno != 0 || currprefs.emul_accuracy < 2)
663: && (diwstate == DIW_waiting_start || thisline_decision.diwfirstword < 0
664: || thisline_decision.diwlastword >= 0
665: || thisline_decision.which == 0
1.1.1.4 root 666: || (thisline_decision.which == 1 && hpos >= thisline_decision.plfstrt + thisline_decision.plflinelen)))
1.1.1.3 root 667: return;
668:
669: /* If the border is changed the first time before the DIW, record the
670: * original starting border value. */
671: if (regno == 0 && thisline_decision.color0 == 0xFFFFFFFFul && thisline_decision.diwfirstword < 0) {
672: thisline_decision.color0 = current_colors.color_regs[0];
673: if (line_decisions[next_lineno].color0 != value)
1.1.1.5 root 674: thisline_changed = 1;
1.1.1.3 root 675: }
676: /* Anything else gets recorded in the color_changes table. */
677: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
1.1.1.4 root 678: if (next_color_change >= max_color_change) {
1.1.1.3 root 679: ++delta_color_change;
680: return;
681: }
682: #endif
1.1.1.4 root 683: curr_color_changes[next_color_change].linepos = hpos;
1.1.1.3 root 684: curr_color_changes[next_color_change].regno = regno;
685: curr_color_changes[next_color_change++].value = value;
686: }
687:
688: /* Stupid hack to get some Sanity demos working. */
1.1.1.4 root 689: static void decide_delay (int hpos)
1.1.1.2 root 690: {
691: static int warned;
692:
693: /* Don't do anything if we're outside the DIW. */
694: if (thisline_decision.diwfirstword == -1 || thisline_decision.diwlastword > 0)
695: return;
1.1.1.4 root 696: decide_line (hpos);
1.1.1.2 root 697: /* Half-hearted attempt to get things right even when post_decide_line() changes
698: * the decision afterwards. */
699: if (thisline_decision.which != 1) {
700: thisline_decision.bplcon1 = bplcon1;
701: return;
702: }
703: /* @@@ Could check here for DDF stopping earlier than DIW */
1.1.1.3 root 704:
705: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
1.1.1.4 root 706: if (next_delay_change >= max_delay_change) {
1.1.1.3 root 707: ++delta_delay_change;
708: return;
709: }
710: #endif
1.1.1.4 root 711: delay_changes[next_delay_change].linepos = hpos;
1.1.1.2 root 712: delay_changes[next_delay_change++].value = bplcon1;
713: if (!warned) {
714: warned = 1;
1.1.1.3 root 715: write_log ("Program is torturing BPLCON1.\n");
1.1.1.2 root 716: }
717: }
718:
719: /*
1.1.1.4 root 720: * The decision which bitplane pointers to use is not made at plfstrt, since
1.1.1.2 root 721: * data fetch does not start for all planes at this point. Therefore, we wait
722: * for the end of the ddf area or the first write to any of the bitplane
723: * pointer registers, whichever comes last, before we decide which plane pointers
724: * to use.
725: * Call decide_line() before this function.
726: */
1.1.1.4 root 727: static void decide_plane (int hpos)
1.1.1.2 root 728: {
729: int i, bytecount;
730:
731: if (framecnt != 0 || plane_decided)
732: return;
733:
734: if (decided_nr_planes == -1 /* Still undecided */
1.1.1.4 root 735: || hpos < thisline_decision.plfstrt + thisline_decision.plflinelen)
1.1.1.2 root 736: return;
737:
738: plane_decided = 1;
739:
1.1.1.7 ! root 740: bytecount = plflinelen / RES_SHIFT (decided_res) * 2;
1.1.1.2 root 741:
742: if (bytecount > MAX_WORDS_PER_LINE * 2) {
743: /* Can't happen. */
744: static int warned = 0;
745: if (!warned)
1.1.1.3 root 746: write_log ("Mysterious bug in decide_plane(). Please report.\n");
1.1.1.7 ! root 747: warned = 1;
1.1.1.2 root 748: bytecount = 0;
749: }
750: if (!very_broken_program) {
1.1.1.3 root 751: uae_u8 *dataptr = line_data[next_lineno];
1.1.1.2 root 752: for (i = 0; i < decided_nr_planes; i++, dataptr += MAX_WORDS_PER_LINE*2) {
1.1.1.3 root 753: uaecptr pt = bplpt[i];
754: uae_u8 *real_ptr = pfield_xlateptr(pt, bytecount);
1.1.1.2 root 755: if (real_ptr == NULL)
756: real_ptr = pfield_xlateptr(0, 0);
757: #ifdef SMART_UPDATE
1.1.1.3 root 758: #if 1
1.1.1.5 root 759: if (thisline_changed)
1.1.1.2 root 760: memcpy (dataptr, real_ptr, bytecount);
1.1.1.3 root 761: else
762: #endif
1.1.1.5 root 763: thisline_changed |= memcmpy (dataptr, real_ptr, bytecount);
1.1.1.2 root 764: #else
765: real_bplpt[i] = real_ptr;
766: #endif
767: }
1.1 root 768: } else {
1.1.1.3 root 769: uae_u8 *dataptr = line_data[next_lineno];
1.1.1.2 root 770: for (i = 0; i < decided_nr_planes; i++, dataptr += MAX_WORDS_PER_LINE*2) {
1.1.1.3 root 771: uaecptr pt = bplpt[i];
772: uae_u8 *real_ptr;
773:
1.1.1.4 root 774: pt -= broken_plane_sub[i];
775: real_ptr = pfield_xlateptr (pt, bytecount);
1.1.1.2 root 776: if (real_ptr == NULL)
777: real_ptr = pfield_xlateptr(0, 0);
778: #ifdef SMART_UPDATE
1.1.1.5 root 779: if (!thisline_changed)
780: thisline_changed |= memcmpy (dataptr, real_ptr, bytecount);
1.1.1.2 root 781: else
782: memcpy (dataptr, real_ptr, bytecount);
783: #else
784: real_bplpt[i] = real_ptr;
785: #endif
786: }
787: }
788: }
789:
790: /*
791: * Called from the BPLxMOD routines, after a new value has been written.
792: * This routine decides whether the new value is already relevant for the
793: * current line.
794: */
1.1.1.4 root 795: static void decide_modulos (int hpos)
1.1.1.2 root 796: {
797: /* All this effort just for the Sanity WOC demo... */
1.1.1.4 root 798: decide_line (hpos);
799: if (decided_nr_planes != -1 && hpos >= thisline_decision.plfstrt + thisline_decision.plflinelen)
1.1.1.2 root 800: return;
801: decided_bpl1mod = bpl1mod;
802: decided_bpl2mod = bpl2mod;
803: }
804:
805: /*
1.1.1.3 root 806: * Add the modulos to the bitplane pointers if data fetch is already
807: * finished for the current line.
808: * Call decide_plane() before calling this, so that we won't use the
809: * new values of the plane pointers for the current line.
1.1.1.2 root 810: */
1.1.1.4 root 811: static void do_modulos (int hpos)
1.1.1.2 root 812: {
813: /* decided_nr_planes is != -1 if this line should be drawn by the
1.1.1.3 root 814: * display hardware, regardless of whether it fits on the emulated screen.
1.1.1.2 root 815: */
816: if (decided_nr_planes != -1 && plane_decided && !modulos_added
1.1.1.4 root 817: && hpos >= thisline_decision.plfstrt + thisline_decision.plflinelen)
1.1.1.2 root 818: {
1.1.1.7 ! root 819: int bytecount = thisline_decision.plflinelen / RES_SHIFT (decided_res) * 2;
1.1.1.2 root 820: int add1 = bytecount + decided_bpl1mod;
821: int add2 = bytecount + decided_bpl2mod;
822:
823: if (!very_broken_program) {
824: switch (decided_nr_planes) {
825: case 8: bplpt[7] += add2;
826: case 7: bplpt[6] += add1;
827: case 6: bplpt[5] += add2;
828: case 5: bplpt[4] += add1;
829: case 4: bplpt[3] += add2;
830: case 3: bplpt[2] += add1;
831: case 2: bplpt[1] += add2;
832: case 1: bplpt[0] += add1;
833: }
1.1.1.4 root 834: } else switch (decided_nr_planes) {
835: case 8: bplpt[7] += add2 - broken_plane_sub[7];
836: case 7: bplpt[6] += add1 - broken_plane_sub[6];
837: case 6: bplpt[5] += add2 - broken_plane_sub[5];
838: case 5: bplpt[4] += add1 - broken_plane_sub[4];
839: case 4: bplpt[3] += add2 - broken_plane_sub[3];
840: case 3: bplpt[2] += add1 - broken_plane_sub[2];
841: case 2: bplpt[1] += add2 - broken_plane_sub[1];
842: case 1: bplpt[0] += add1 - broken_plane_sub[0];
1.1.1.2 root 843: }
844:
845: modulos_added = 1;
846: }
847: }
848:
1.1.1.3 root 849: static __inline__ void record_sprite (int spr, int sprxp)
1.1.1.2 root 850: {
1.1.1.3 root 851: int pos = next_sprite_draw;
852: unsigned int data, datb;
1.1.1.2 root 853:
1.1.1.3 root 854: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
855: if(pos >= max_sprite_draw) {
856: ++delta_sprite_draw;
1.1.1.2 root 857: return;
1.1.1.3 root 858: }
859: #endif
860: /* XXX FIXME, this isn't very clever, but it might do */
861: for (;;) {
862: if (pos == curr_drawinfo[next_lineno].first_sprite_draw)
863: break;
864: if (curr_sprite_positions[pos-1].linepos < sprxp)
865: break;
866: if (curr_sprite_positions[pos-1].linepos == sprxp
867: && curr_sprite_positions[pos-1].num > spr)
868: break;
869: printf("Foo\n");
870: pos--;
871: }
872: if (pos != next_sprite_draw) {
873: int pos2 = next_sprite_draw;
874: while (pos2 != pos) {
875: curr_sprite_positions[pos2] = curr_sprite_positions[pos2-1];
876: pos2--;
877: }
878: }
879: curr_sprite_positions[pos].linepos = sprxp;
880: curr_sprite_positions[pos].num = spr;
881: curr_sprite_positions[pos].ctl = sprctl[spr];
1.1.1.7 ! root 882: data = sprdata[spr];
! 883: datb = sprdatb[spr];
1.1.1.3 root 884: curr_sprite_positions[pos].datab = ((sprtaba[data & 0xFF] << 16) | sprtaba[data >> 8]
885: | (sprtabb[datb & 0xFF] << 16) | sprtabb[datb >> 8]);
886: next_sprite_draw++;
887: }
1.1.1.2 root 888:
1.1.1.4 root 889: static void decide_sprites (int hpos)
1.1.1.3 root 890: {
1.1.1.7 ! root 891: int nrs[MAX_SPRITES], posns[MAX_SPRITES];
! 892: int count, i;
1.1.1.4 root 893: int point = PIXEL_XPOS (hpos);
1.1.1.2 root 894:
1.1.1.4 root 895: if (framecnt != 0 || hpos < 0x14 || nr_armed == 0 || point == last_sprite_point)
1.1.1.2 root 896: return;
897:
1.1.1.4 root 898: decide_diw (hpos);
899: decide_line (hpos);
1.1.1.3 root 900:
901: if (thisline_decision.which != 1)
1.1.1.2 root 902: return;
903:
1.1.1.3 root 904: count = 0;
905: for (i = 0; i < 8; i++) {
906: int sprxp = sprxpos[i];
907: int j, bestp;
1.1.1.2 root 908:
1.1.1.3 root 909: if (!sprarmed[i] || sprxp < 0 || sprxp > point || last_sprite_point >= sprxp)
910: continue;
911: if ((thisline_decision.diwfirstword >= 0 && sprxp + sprite_width < thisline_decision.diwfirstword)
912: || (thisline_decision.diwlastword >= 0 && sprxp > thisline_decision.diwlastword))
913: continue;
1.1.1.2 root 914:
1.1.1.3 root 915: for (bestp = 0; bestp < count; bestp++) {
916: if (posns[bestp] > sprxp)
917: break;
918: if (posns[bestp] == sprxp && nrs[bestp] < i)
919: break;
920: }
921: for (j = count; j > bestp; j--) {
922: posns[j] = posns[j-1];
923: nrs[j] = nrs[j-1];
924: }
925: posns[j] = sprxp;
926: nrs[j] = i;
927: count++;
928: }
929: for (i = 0; i < count; i++)
1.1.1.4 root 930: record_sprite (nrs[i], posns[i]);
1.1.1.3 root 931: last_sprite_point = point;
1.1.1.2 root 932: }
933:
1.1.1.3 root 934: /* End of a horizontal scan line. Finish off all decisions that were not
935: * made yet. */
1.1.1.2 root 936: static void finish_decisions (void)
937: {
938: struct draw_info *dip;
939: struct draw_info *dip_old;
940: struct decision *dp;
941: int changed;
1.1.1.4 root 942: int hpos = current_hpos ();
1.1.1.2 root 943:
944: if (framecnt != 0)
945: return;
946:
1.1.1.4 root 947: decide_diw (hpos);
1.1.1.2 root 948: if (thisline_decision.which == 0)
1.1.1.4 root 949: decide_line_1 (hpos);
1.1.1.3 root 950:
951: /* Large DIWSTOP values can cause the stop position never to be
952: * reached, so the state machine always stays in the same state and
953: * there's a more-or-less full-screen DIW. */
954: if (hdiwstate == DIW_waiting_stop) {
955: thisline_decision.diwlastword = max_diwlastword;
956: if (thisline_decision.diwlastword != line_decisions[next_lineno].diwlastword)
1.1.1.5 root 957: MARK_LINE_CHANGED;
1.1.1.3 root 958: }
959:
1.1.1.2 root 960: if (line_decisions[next_lineno].which != thisline_decision.which)
1.1.1.5 root 961: thisline_changed = 1;
1.1.1.4 root 962: decide_plane (hpos);
1.1.1.2 root 963:
964: dip = curr_drawinfo + next_lineno;
965: dip_old = prev_drawinfo + next_lineno;
966: dp = line_decisions + next_lineno;
1.1.1.5 root 967: changed = thisline_changed;
1.1.1.2 root 968:
969: if (thisline_decision.which == 1) {
1.1.1.4 root 970: record_diw_line (diwfirstword, diwlastword);
1.1.1.2 root 971:
1.1.1.4 root 972: decide_sprites (hpos);
1.1.1.3 root 973:
1.1.1.2 root 974: if (thisline_decision.bplcon1 != line_decisions[next_lineno].bplcon1)
975: changed = 1;
976: }
977:
978: dip->last_color_change = next_color_change;
979: dip->last_delay_change = next_delay_change;
980: dip->last_sprite_draw = next_sprite_draw;
1.1.1.3 root 981:
982: if (thisline_decision.ctable == -1) {
983: if (thisline_decision.which == 1)
984: remember_ctable ();
985: else
986: remember_ctable_for_border ();
987: }
1.1.1.2 root 988: if (thisline_decision.which == -1 && thisline_decision.color0 == 0xFFFFFFFFul)
989: thisline_decision.color0 = current_colors.color_regs[0];
990:
991: dip->nr_color_changes = next_color_change - dip->first_color_change;
992: dip->nr_sprites = next_sprite_draw - dip->first_sprite_draw;
993:
994: if (dip->first_delay_change != dip->last_delay_change)
995: changed = 1;
996: if (!changed
997: && (dip->nr_color_changes != dip_old->nr_color_changes
1.1.1.3 root 998: || (dip->nr_color_changes > 0
999: && memcmp (curr_color_changes + dip->first_color_change,
1000: prev_color_changes + dip_old->first_color_change,
1001: dip->nr_color_changes * sizeof *curr_color_changes) != 0)))
1.1.1.2 root 1002: changed = 1;
1003: if (!changed && thisline_decision.which == 1
1004: && (dip->nr_sprites != dip_old->nr_sprites
1005: || (dip->nr_sprites > 0
1.1.1.3 root 1006: && memcmp (curr_sprite_positions + dip->first_sprite_draw,
1007: prev_sprite_positions + dip_old->first_sprite_draw,
1008: dip->nr_sprites * sizeof *curr_sprite_positions) != 0)))
1.1.1.2 root 1009: changed = 1;
1010:
1011: if (changed) {
1.1.1.5 root 1012: thisline_changed = 1;
1.1.1.2 root 1013: *dp = thisline_decision;
1014: } else
1015: /* The only one that may differ: */
1016: dp->ctable = thisline_decision.ctable;
1017: }
1018:
1.1.1.3 root 1019: /* Set the state of all decisions to "undecided" for a new scanline. */
1.1.1.2 root 1020: static void reset_decisions (void)
1021: {
1022: if (framecnt != 0)
1023: return;
1024: thisline_decision.which = 0;
1025: decided_bpl1mod = bpl1mod;
1026: decided_bpl2mod = bpl2mod;
1027: decided_nr_planes = -1;
1028:
1.1.1.7 ! root 1029: /* decided_res shouldn't be touched before it's initialized by decide_line(). */
1.1.1.2 root 1030: thisline_decision.diwfirstword = -1;
1031: thisline_decision.diwlastword = -2;
1.1.1.3 root 1032: if (hdiwstate == DIW_waiting_stop) {
1033: thisline_decision.diwfirstword = PIXEL_XPOS (DISPLAY_LEFT_SHIFT/2);
1034: if (thisline_decision.diwfirstword != line_decisions[next_lineno].diwfirstword)
1.1.1.5 root 1035: MARK_LINE_CHANGED;
1.1.1.3 root 1036: }
1.1.1.2 root 1037: thisline_decision.ctable = -1;
1038: thisline_decision.color0 = 0xFFFFFFFFul;
1039:
1.1.1.5 root 1040: thisline_changed = 0;
1.1.1.2 root 1041: curr_drawinfo[next_lineno].first_color_change = next_color_change;
1042: curr_drawinfo[next_lineno].first_delay_change = next_delay_change;
1043: curr_drawinfo[next_lineno].first_sprite_draw = next_sprite_draw;
1044:
1.1.1.3 root 1045: /* memset(sprite_last_drawn_at, 0, sizeof sprite_last_drawn_at); */
1046: last_sprite_point = 0;
1.1.1.2 root 1047: modulos_added = 0;
1048: plane_decided = 0;
1049: color_decided = 0;
1050: very_broken_program = 0;
1051: }
1052:
1.1.1.3 root 1053: /* Initialize the decision array, once before the emulator really starts. */
1.1.1.2 root 1054: static void init_decisions (void)
1055: {
1056: size_t i;
1057: for (i = 0; i < sizeof line_decisions / sizeof *line_decisions; i++) {
1058: line_decisions[i].which = -2;
1.1 root 1059: }
1.1.1.2 root 1060: }
1061:
1.1.1.7 ! root 1062: /* set PAL or NTSC timing variables */
! 1063:
! 1064: static void init_hz (void)
! 1065: {
! 1066: int isntsc;
! 1067:
! 1068: beamcon0 = new_beamcon0;
! 1069: init_decisions ();
! 1070:
! 1071: isntsc = beamcon0 & 0x20 ? 0 : 1;
! 1072: if (!isntsc) {
! 1073: maxvpos = MAXVPOS_PAL;
! 1074: maxhpos = MAXHPOS_PAL;
! 1075: minfirstline = MINFIRSTLINE_PAL;
! 1076: vblank_endline = VBLANK_ENDLINE_PAL;
! 1077: vblank_hz = VBLANK_HZ_PAL;
! 1078: } else {
! 1079: maxvpos = MAXVPOS_NTSC;
! 1080: maxhpos = MAXHPOS_NTSC;
! 1081: minfirstline = MINFIRSTLINE_NTSC;
! 1082: vblank_endline = VBLANK_ENDLINE_NTSC;
! 1083: vblank_hz = VBLANK_HZ_NTSC;
! 1084: }
! 1085: vsynctime = syncbase / vblank_hz;
! 1086:
! 1087: write_log ("Using %s timing\n", isntsc ? "NTSC" : "PAL");
! 1088: }
! 1089:
1.1.1.3 root 1090: /* Calculate display window and data fetch values from the corresponding
1091: * hardware registers. */
1.1.1.2 root 1092: static void calcdiw (void)
1093: {
1.1.1.7 ! root 1094: int mask, add, mask2, add2, plfold;
! 1095:
1.1.1.4 root 1096: int hstrt = diwstrt & 0xFF;
1097: int hstop = diwstop & 0xFF;
1098: int vstrt = diwstrt >> 8;
1099: int vstop = diwstop >> 8;
1100:
1101: if (diwhigh_written) {
1102: hstrt |= ((diwhigh >> 5) & 1) << 8;
1103: hstop |= ((diwhigh >> 13) & 1) << 8;
1104: vstrt |= (diwhigh & 7) << 8;
1105: vstop |= ((diwhigh >> 8) & 7) << 8;
1106: } else {
1107: hstop += 0x100;
1108: if ((vstop & 0x80) == 0)
1109: vstop |= 0x100;
1110: }
1111:
1112: diwfirstword = coord_hw_to_native_x (hstrt - 1);
1113: diwlastword = coord_hw_to_native_x (hstop - 1);
1.1.1.2 root 1114:
1115: if (diwlastword > max_diwlastword)
1116: diwlastword = max_diwlastword;
1117: if (diwfirstword < 0)
1118: diwfirstword = 0;
1119: if (diwlastword < 0)
1120: diwlastword = 0;
1.1.1.3 root 1121:
1.1.1.4 root 1122: plffirstline = vstrt;
1123: plflastline = vstop;
1124:
1.1 root 1125: #if 0
1126: /* This happens far too often. */
1127: if (plffirstline < minfirstline) {
1128: fprintf(stderr, "Warning: Playfield begins before line %d!\n", minfirstline);
1129: plffirstline = minfirstline;
1130: }
1131: #endif
1.1.1.4 root 1132:
1.1 root 1133: #if 0 /* Turrican does this */
1134: if (plflastline > 313) {
1.1.1.4 root 1135: fprintf (stderr, "Warning: Playfield out of range!\n");
1.1 root 1136: plflastline = 313;
1137: }
1138: #endif
1.1.1.7 ! root 1139:
1.1.1.2 root 1140: plfstrt = ddfstrt;
1141: plfstop = ddfstop;
1.1.1.7 ! root 1142: /* @@@ Toni... these ones might be wrong for AGA? */
1.1 root 1143: if (plfstrt < 0x18) plfstrt = 0x18;
1.1.1.3 root 1144: if (plfstop < 0x18) plfstop = 0x18;
1.1 root 1145: if (plfstop > 0xD8) plfstop = 0xD8;
1146:
1147: /* ! If the masking operation is changed, the pfield_doline code could break
1148: * on some systems (alignment) */
1149: /* This actually seems to be correct now, at least the non-AGA stuff... */
1.1.1.7 ! root 1150:
! 1151: if ((fmode & 3) == 0) {
! 1152: /* FMODE=0 */
! 1153: mask = ~7;
! 1154: add = 15;
! 1155: mask2 = ~3;
! 1156: add2 = 0;
! 1157: } else if ((fmode & 3) == 3) {
! 1158: /* FMODE=3 */
! 1159: if(bplcon0 & 0x8000) {
! 1160: mask = ~15;
! 1161: add = 31;
! 1162: mask2 = ~7;
! 1163: add2 = 4;
! 1164: } else {
! 1165: mask = ~31;
! 1166: add = 63;
! 1167: mask2 = ~15;
! 1168: add2 = 8;
! 1169: }
! 1170: } else {
! 1171: /* FMODE=1/2 */
! 1172: if(bplcon0 & 0x8000) {
! 1173: mask = ~15;
! 1174: add = 31;
! 1175: mask2 = ~15;
! 1176: add2 = 4;
! 1177: } else {
! 1178: mask = ~15;
! 1179: add = 31;
! 1180: mask2 = ~15;
! 1181: add2 = 8;
! 1182:
! 1183: }
! 1184: }
! 1185: /* ugh.. This works in every demo and game I have tested, but can't be correct,
! 1186: * it looks too complex and stupid, does anybody know how this really works? (TW)
! 1187: */
! 1188: plfold = plfstrt;
! 1189: plfstrt &= mask2;
! 1190: plfstrt += add2;
! 1191: /* @@@ This one is different from the pre-AGA version. It shouldn't make
! 1192: * a difference in OCS modes, though. */
! 1193: plfstop += plfstrt - plfold;
! 1194: plfstop &= mask2;
! 1195: plfstop += add2;
! 1196: plflinelen = (plfstop-plfstrt+add) & mask;
! 1197:
! 1198: if (plfstrt > plfstop)
! 1199: plfstrt = plfstop;
! 1200:
! 1201: #if 0
! 1202: if (plflinelen > 100 && (bplcon0 & 0x8000))
! 1203: write_log("vpos: %d fmode: %d, hires %d strt1 %d stop1 %d strt2 %d stop2 %d,plflinelen %d\n",
! 1204: vpos,fmode&3,(bplcon0&0x8000)?1:0,ddfstrt,ddfstop,plfstrt,plfstop,plflinelen);
! 1205: #endif
1.1 root 1206: }
1207:
1.1.1.7 ! root 1208: /*
! 1209: * lores,fmode=3 24 184 = 192
! 1210: * hires,fmode=3 40 200 = 176
! 1211: * hires,fmode=3 40 216 = 192
! 1212: * hires,fmode=1 56 200 = 160
! 1213: * hires,fmode=1 56 208 = 160
! 1214: * lores,fmode=1 48 200 = 176
! 1215: * lores,fmode=1 72 168 = 112
! 1216: */
! 1217:
1.1.1.4 root 1218: /* Mousehack stuff */
1.1.1.2 root 1219:
1.1.1.4 root 1220: #define defstepx (1<<16)
1221: #define defstepy (1<<16)
1222: #define defxoffs 0
1223: #define defyoffs 0
1.1.1.3 root 1224:
1.1.1.4 root 1225: static const int docal = 60, xcaloff = 40, ycaloff = 20;
1226: static const int calweight = 3;
1227: static int lastsampledmx, lastsampledmy;
1228: static int lastspr0x,lastspr0y,lastdiffx,lastdiffy,spr0pos,spr0ctl;
1229: static int mstepx,mstepy,xoffs=defxoffs,yoffs=defyoffs;
1230: static int sprvbfl;
1.1.1.2 root 1231:
1.1.1.4 root 1232: int lastmx, lastmy;
1233: int newmousecounters;
1234: int ievent_alive = 0;
1.1 root 1235:
1.1.1.4 root 1236: static enum { unknown_mouse, normal_mouse, dont_care_mouse, follow_mouse } mousestate;
1.1 root 1237:
1.1.1.4 root 1238: static void mousehack_setdontcare (void)
1.1 root 1239: {
1.1.1.4 root 1240: if (mousestate == dont_care_mouse)
1.1.1.2 root 1241: return;
1242:
1.1.1.3 root 1243: write_log ("Don't care mouse mode set\n");
1244: mousestate = dont_care_mouse;
1245: lastspr0x = lastmx; lastspr0y = lastmy;
1246: mstepx = defstepx; mstepy = defstepy;
1247: }
1248:
1.1.1.4 root 1249: static void mousehack_setfollow (void)
1.1.1.3 root 1250: {
1.1.1.4 root 1251: if (mousestate == follow_mouse)
1252: return;
1253:
1.1.1.3 root 1254: write_log ("Follow sprite mode set\n");
1255: mousestate = follow_mouse;
1256: lastdiffx = lastdiffy = 0;
1257: sprvbfl = 0;
1.1.1.4 root 1258: spr0ctl = spr0pos = 0;
1.1.1.3 root 1259: mstepx = defstepx; mstepy = defstepy;
1260: }
1261:
1.1.1.7 ! root 1262: static uae_u32 mousehack_helper (void)
1.1.1.3 root 1263: {
1264: int mousexpos, mouseypos;
1265:
1266: #ifdef PICASSO96
1267: if (picasso_on) {
1.1.1.4 root 1268: mousexpos = lastmx - picasso96_state.XOffset;
1269: mouseypos = lastmy - picasso96_state.YOffset;
1.1.1.3 root 1270: } else
1271: #endif
1272: {
1273: if (lastmy >= gfxvidinfo.height)
1.1.1.4 root 1274: lastmy = gfxvidinfo.height - 1;
1275: mouseypos = coord_native_to_amiga_y (lastmy) << 1;
1276: mousexpos = coord_native_to_amiga_x (lastmx);
1.1.1.3 root 1277: }
1278:
1279: switch (m68k_dreg (regs, 0)) {
1280: case 0:
1281: return ievent_alive ? -1 : needmousehack ();
1282: case 1:
1283: ievent_alive = 10;
1284: return mousexpos;
1285: case 2:
1286: return mouseypos;
1287: }
1288: return 0;
1289: }
1290:
1.1.1.4 root 1291: void togglemouse (void)
1.1.1.3 root 1292: {
1.1.1.4 root 1293: switch (mousestate) {
1294: case dont_care_mouse: mousehack_setfollow (); break;
1295: case follow_mouse: mousehack_setdontcare (); break;
1.1.1.3 root 1296: default: break; /* Nnnnnghh! */
1297: }
1298: }
1299:
1.1.1.4 root 1300: static __inline__ int adjust (int val)
1.1.1.3 root 1301: {
1.1.1.4 root 1302: if (val > 127)
1.1.1.3 root 1303: return 127;
1.1.1.4 root 1304: else if (val < -127)
1.1.1.3 root 1305: return -127;
1306: return val;
1307: }
1308:
1.1.1.4 root 1309: static void do_mouse_hack (void)
1.1.1.3 root 1310: {
1311: int spr0x = ((spr0pos & 0xff) << 2) | ((spr0ctl & 1) << 1);
1312: int spr0y = ((spr0pos >> 8) | ((spr0ctl & 4) << 6)) << 1;
1313: int diffx, diffy;
1314:
1315: if (ievent_alive > 0) {
1316: mouse_x = mouse_y = 0;
1317: return;
1318: }
1319: switch (mousestate) {
1320: case normal_mouse:
1321: diffx = lastmx - lastsampledmx;
1322: diffy = lastmy - lastsampledmy;
1323: if (!newmousecounters) {
1324: if (diffx > 127) diffx = 127;
1325: if (diffx < -127) diffx = -127;
1326: mouse_x += diffx;
1327: if (diffy > 127) diffy = 127;
1328: if (diffy < -127) diffy = -127;
1329: mouse_y += diffy;
1330: }
1331: lastsampledmx += diffx; lastsampledmy += diffy;
1332: break;
1333:
1334: case dont_care_mouse:
1.1.1.4 root 1335: diffx = adjust (((lastmx - lastspr0x) * mstepx) >> 16);
1336: diffy = adjust (((lastmy - lastspr0y) * mstepy) >> 16);
1337: lastspr0x = lastmx; lastspr0y = lastmy;
1338: mouse_x += diffx; mouse_y += diffy;
1.1.1.3 root 1339: break;
1340:
1341: case follow_mouse:
1.1.1.4 root 1342: if (sprvbfl && sprvbfl-- > 1) {
1.1.1.3 root 1343: int mousexpos, mouseypos;
1344:
1.1.1.4 root 1345: if ((lastdiffx > docal || lastdiffx < -docal)
1346: && lastspr0x != spr0x
1347: && spr0x > plfstrt*4 + 34 + xcaloff
1348: && spr0x < plfstop*4 - xcaloff)
1.1.1.3 root 1349: {
1350: int val = (lastdiffx << 16) / (spr0x - lastspr0x);
1.1.1.4 root 1351: if (val >= 0x8000)
1352: mstepx = (mstepx * (calweight - 1) + val) / calweight;
1.1.1.3 root 1353: }
1.1.1.4 root 1354: if ((lastdiffy > docal || lastdiffy < -docal)
1355: && lastspr0y != spr0y
1356: && spr0y > plffirstline + ycaloff
1357: && spr0y < plflastline - ycaloff)
1.1.1.3 root 1358: {
1.1.1.4 root 1359: int val = (lastdiffy << 16) / (spr0y - lastspr0y);
1360: if (val >= 0x8000)
1361: mstepy = (mstepy * (calweight - 1) + val) / calweight;
1.1.1.3 root 1362: }
1363: if (lastmy >= gfxvidinfo.height)
1364: lastmy = gfxvidinfo.height-1;
1.1.1.4 root 1365: mouseypos = coord_native_to_amiga_y (lastmy) << 1;
1366: mousexpos = coord_native_to_amiga_x (lastmx);
1.1.1.3 root 1367: diffx = adjust ((((mousexpos + xoffs - spr0x) & ~1) * mstepx) >> 16);
1368: diffy = adjust ((((mouseypos + yoffs - spr0y) & ~1) * mstepy) >> 16);
1.1.1.4 root 1369: lastspr0x = spr0x; lastspr0y = spr0y;
1370: lastdiffx = diffx; lastdiffy = diffy;
1371: mouse_x += diffx; mouse_y += diffy;
1.1.1.3 root 1372: }
1373: break;
1.1.1.4 root 1374:
1375: default:
1376: abort ();
1.1.1.3 root 1377: }
1378: }
1379:
1.1.1.7 ! root 1380: static int timehack_alive = 0;
! 1381:
! 1382: static uae_u32 timehack_helper (void)
! 1383: {
! 1384: #ifdef HAVE_GETTIMEOFDAY
! 1385: struct timeval tv;
! 1386: if (m68k_dreg (regs, 0) == 0)
! 1387: return timehack_alive;
! 1388:
! 1389: timehack_alive = 10;
! 1390:
! 1391: gettimeofday (&tv, NULL);
! 1392: put_long (m68k_areg (regs, 0), tv.tv_sec - (((365 * 8 + 2) * 24 - 2) * 60 * 60));
! 1393: put_long (m68k_areg (regs, 0) + 4, tv.tv_usec);
! 1394: return 0;
! 1395: #else
! 1396: return 2;
! 1397: #endif
! 1398: }
! 1399:
1.1.1.3 root 1400: /*
1.1 root 1401: * register functions
1402: */
1.1.1.7 ! root 1403: static __inline__ uae_u16 DENISEID (void)
! 1404: {
! 1405: if (currprefs.chipset_mask & CSMASK_AGA)
! 1406: return 0xF8;
! 1407: if (currprefs.chipset_mask & CSMASK_ECS_DENISE)
! 1408: return 0xFC;
! 1409: return 0xFFFF;
! 1410: }
1.1.1.4 root 1411: static __inline__ uae_u16 DMACONR (void)
1.1 root 1412: {
1413: return (dmacon | (bltstate==BLT_done ? 0 : 0x4000)
1414: | (blt_info.blitzero ? 0x2000 : 0));
1415: }
1.1.1.4 root 1416: static __inline__ uae_u16 INTENAR (void)
1417: {
1418: return intena;
1419: }
1420: uae_u16 INTREQR (void)
1.1 root 1421: {
1.1.1.3 root 1422: return intreq | (currprefs.use_serial ? 0x0001 : 0);
1.1 root 1423: }
1.1.1.4 root 1424: static __inline__ uae_u16 ADKCONR (void)
1425: {
1426: return adkcon;
1427: }
1428: static __inline__ uae_u16 VPOSR (void)
1.1 root 1429: {
1.1.1.7 ! root 1430: unsigned int csbit = ntscmode ? 0x1000 : 0;
! 1431: csbit |= (currprefs.chipset_mask & CSMASK_AGA) ? 0x2300 : 0;
! 1432: csbit |= (currprefs.chipset_mask & CSMASK_ECS_AGNUS) ? 0x2000 : 0;
! 1433: return (vpos >> 8) | lof | csbit;
1.1 root 1434: }
1.1.1.4 root 1435: static void VPOSW (uae_u16 v)
1.1.1.2 root 1436: {
1437: if (lof != (v & 0x8000))
1438: lof_changed = 1;
1439: lof = v & 0x8000;
1.1.1.3 root 1440: /*
1441: * This register is much more fun on a real Amiga. You can program
1442: * refresh rates with it ;) But I won't emulate this...
1443: */
1.1.1.2 root 1444: }
1.1 root 1445:
1.1.1.4 root 1446: static __inline__ uae_u16 VHPOSR (void)
1447: {
1448: return (vpos << 8) | current_hpos();
1449: }
1450:
1451: static __inline__ void COP1LCH (uae_u16 v) { cop1lc = (cop1lc & 0xffff) | ((uae_u32)v << 16); }
1452: static __inline__ void COP1LCL (uae_u16 v) { cop1lc = (cop1lc & ~0xffff) | (v & 0xfffe); }
1453: static __inline__ void COP2LCH (uae_u16 v) { cop2lc = (cop2lc & 0xffff) | ((uae_u32)v << 16); }
1454: static __inline__ void COP2LCL (uae_u16 v) { cop2lc = (cop2lc & ~0xffff) | (v & 0xfffe); }
1455:
1456: static void COPJMP1 (uae_u16 a)
1457: {
1458: cop_state.ip = cop1lc;
1459: cop_state.do_move = 0;
1460: cop_state.ignore_next = 0;
1461: cop_state.state = COP_read1;
1462: cop_state.vpos = vpos;
1463: cop_state.hpos = current_hpos () & ~1;
1464: cop_state.count = current_hpos () & ~1;
1465: prepare_copper ();
1466: if (eventtab[ev_copper].evtime == cycles && eventtab[ev_copper].active)
1467: abort ();
1468: events_schedule ();
1469: }
1470:
1471: static void COPJMP2 (uae_u16 a)
1472: {
1473: cop_state.ip = cop2lc;
1474: cop_state.do_move = 0;
1475: cop_state.ignore_next = 0;
1476: cop_state.state = COP_read1;
1477: cop_state.vpos = vpos;
1478: cop_state.hpos = current_hpos () & ~1;
1479: cop_state.count = current_hpos () & ~1;
1480: prepare_copper ();
1481: if (eventtab[ev_copper].evtime == cycles && eventtab[ev_copper].active)
1482: abort ();
1483: events_schedule ();
1484: }
1485:
1486: static __inline__ void COPCON (uae_u16 a)
1487: {
1488: copcon = a;
1.1 root 1489: }
1.1.1.4 root 1490:
1491: static void DMACON (uae_u16 v)
1.1 root 1492: {
1493: int i, need_resched = 0;
1494:
1.1.1.3 root 1495: uae_u16 oldcon = dmacon;
1496:
1.1.1.4 root 1497: decide_line (current_hpos ());
1.1 root 1498: setclr(&dmacon,v); dmacon &= 0x1FFF;
1.1.1.3 root 1499: /* ??? post_decide_line (); */
1500:
1501: /* FIXME? Maybe we need to think a bit more about the master DMA enable
1.1 root 1502: * bit in these cases. */
1.1.1.3 root 1503: if ((dmacon & DMA_COPPER) > (oldcon & DMA_COPPER)) {
1.1.1.4 root 1504: cop_state.ip = cop1lc;
1505: cop_state.do_move = 0;
1506: cop_state.ignore_next = 0;
1507: cop_state.state = COP_read1;
1508: cop_state.vpos = vpos;
1509: cop_state.hpos = current_hpos () & ~1;
1510: cop_state.count = current_hpos () & ~1;
1511: prepare_copper ();
1512: if (eventtab[ev_copper].evtime == cycles && eventtab[ev_copper].active)
1513: abort ();
1514: need_resched = 1;
1.1 root 1515: }
1516: if ((dmacon & DMA_BLITPRI) > (oldcon & DMA_BLITPRI) && bltstate != BLT_done) {
1517: static int count = 0;
1518: if (!count) {
1519: count = 1;
1.1.1.3 root 1520: write_log ("warning: program is doing blitpri hacks.\n");
1.1 root 1521: }
1522: regs.spcflags |= SPCFLAG_BLTNASTY;
1523: }
1.1.1.4 root 1524:
1525: update_audio ();
1526:
1.1 root 1527: for (i = 0; i < 4; i++) {
1528: struct audio_channel_data *cdp = audio_channel + i;
1.1.1.3 root 1529:
1.1 root 1530: cdp->dmaen = (dmacon & 0x200) && (dmacon & (1<<i));
1531: if (cdp->dmaen) {
1532: if (cdp->state == 0) {
1533: cdp->state = 1;
1534: cdp->pt = cdp->lc;
1535: cdp->wper = cdp->per;
1536: cdp->wlen = cdp->len;
1537: cdp->data_written = 2;
1.1.1.4 root 1538: cdp->evtime = eventtab[ev_hsync].evtime - cycles;
1.1 root 1539: }
1540: } else {
1541: if (cdp->state == 1 || cdp->state == 5) {
1542: cdp->state = 0;
1.1.1.7 ! root 1543: cdp->last_sample = 0;
1.1 root 1544: cdp->current_sample = 0;
1545: }
1546: }
1547: }
1.1.1.4 root 1548:
1.1 root 1549: if (need_resched)
1550: events_schedule();
1551: }
1.1.1.2 root 1552:
1.1.1.3 root 1553: /*static int trace_intena = 0;*/
1.1.1.2 root 1554:
1.1.1.3 root 1555: static __inline__ void INTENA (uae_u16 v)
1.1.1.2 root 1556: {
1.1.1.3 root 1557: /* if (trace_intena)
1.1.1.4 root 1558: fprintf (stderr, "INTENA: %04x\n", v);*/
1.1.1.3 root 1559: setclr(&intena,v); regs.spcflags |= SPCFLAG_INT;
1.1.1.2 root 1560: }
1.1.1.3 root 1561: void INTREQ (uae_u16 v)
1.1 root 1562: {
1.1.1.3 root 1563: setclr(&intreq,v);
1564: regs.spcflags |= SPCFLAG_INT;
1.1.1.4 root 1565: if (( v & 0x8800) == 0x0800)
1566: serdat &= 0xbfff;
1.1.1.3 root 1567: }
1.1 root 1568:
1.1.1.3 root 1569: static void ADKCON (uae_u16 v)
1570: {
1571: unsigned long t;
1.1.1.4 root 1572:
1573: update_audio ();
1574:
1.1.1.3 root 1575: setclr (&adkcon,v);
1576: t = adkcon | (adkcon >> 4);
1577: audio_channel[0].adk_mask = (((t >> 0) & 1) - 1);
1578: audio_channel[1].adk_mask = (((t >> 1) & 1) - 1);
1579: audio_channel[2].adk_mask = (((t >> 2) & 1) - 1);
1580: audio_channel[3].adk_mask = (((t >> 3) & 1) - 1);
1581: }
1.1 root 1582:
1.1.1.7 ! root 1583: static void BEAMCON0 (uae_u16 v)
! 1584: {
! 1585: new_beamcon0 = v & 0x20;
! 1586: }
! 1587:
1.1.1.4 root 1588: static void BPLPTH (int hpos, uae_u16 v, int num)
1.1.1.3 root 1589: {
1.1.1.4 root 1590: decide_line (hpos);
1591: decide_plane (hpos);
1592: do_modulos (hpos);
1593: bplpt[num] = (bplpt[num] & 0xffff) | ((uae_u32)v << 16);
1.1.1.3 root 1594: }
1.1.1.4 root 1595: static void BPLPTL (int hpos, uae_u16 v, int num)
1.1.1.3 root 1596: {
1.1.1.4 root 1597: decide_line (hpos);
1598: decide_plane (hpos);
1599: do_modulos (hpos);
1600: bplpt[num] = (bplpt[num] & ~0xffff) | (v & 0xfffe);
1.1.1.3 root 1601: }
1.1 root 1602:
1.1.1.4 root 1603: static void BPLCON0 (int hpos, uae_u16 v)
1.1 root 1604: {
1.1.1.7 ! root 1605: if (! (currprefs.chipset_mask & CSMASK_AGA)) {
! 1606: v &= 0xFF0E;
! 1607: /* The Sanity WOC demo needs this at one place (at the end of the "Party Effect")
! 1608: * Disable bitplane DMA if someone tries to do more than 4 Hires bitplanes. */
! 1609: if ((v & 0xF000) > 0xC000)
! 1610: v &= 0xFFF;
! 1611: /* Don't want 7 lores planes either. */
! 1612: if ((v & 0x8000) == 0 && (v & 0x7000) == 0x7000)
! 1613: v &= 0xEFFF;
! 1614: }
1.1.1.2 root 1615: if (bplcon0 == v)
1.1 root 1616: return;
1.1.1.4 root 1617: decide_line (hpos);
1.1.1.2 root 1618: bplcon0 = v;
1.1.1.6 root 1619: nr_planes_from_bplcon0 = GET_PLANES (v);
1.1.1.7 ! root 1620:
! 1621: if (currprefs.chipset_mask & CSMASK_AGA)
! 1622: /* It's not clear how the copper timings are affected by the number
! 1623: * of bitplanes on AGA machines */
! 1624: corrected_nr_planes_from_bplcon0 = 4;
! 1625: else
! 1626: corrected_nr_planes_from_bplcon0 = nr_planes_from_bplcon0 << (bplcon0 & 0x8000 ? 1 : 0);
! 1627:
1.1.1.4 root 1628: post_decide_line (hpos);
1.1 root 1629: }
1.1.1.4 root 1630: static __inline__ void BPLCON1 (int hpos, uae_u16 v)
1.1 root 1631: {
1.1.1.2 root 1632: if (bplcon1 == v)
1.1 root 1633: return;
1.1.1.4 root 1634: decide_diw (hpos);
1.1.1.2 root 1635: bplcon1 = v;
1.1.1.4 root 1636: decide_delay (hpos);
1.1 root 1637: }
1.1.1.4 root 1638: static __inline__ void BPLCON2 (int hpos, uae_u16 v)
1.1 root 1639: {
1.1.1.7 ! root 1640: if (bplcon2 == v)
! 1641: return;
! 1642: decide_line (hpos);
1.1.1.2 root 1643: bplcon2 = v;
1.1 root 1644: }
1.1.1.4 root 1645: static __inline__ void BPLCON3 (int hpos, uae_u16 v)
1.1 root 1646: {
1.1.1.7 ! root 1647: if (bplcon3 == v)
! 1648: return;
! 1649: decide_line (hpos);
1.1.1.3 root 1650: bplcon3 = v;
1.1 root 1651: }
1.1.1.4 root 1652: static __inline__ void BPLCON4 (int hpos, uae_u16 v)
1.1 root 1653: {
1.1.1.7 ! root 1654: if (! (currprefs.chipset_mask & CSMASK_AGA))
! 1655: return;
! 1656: if (bplcon4 == v)
! 1657: return;
! 1658: decide_line (hpos);
1.1.1.3 root 1659: bplcon4 = v;
1.1 root 1660: }
1661:
1.1.1.4 root 1662: static void BPL1MOD (int hpos, uae_u16 v)
1.1 root 1663: {
1664: v &= ~1;
1.1.1.3 root 1665: if ((uae_s16)bpl1mod == (uae_s16)v)
1.1 root 1666: return;
1667: bpl1mod = v;
1.1.1.4 root 1668: decide_modulos (hpos);
1.1 root 1669: }
1.1.1.2 root 1670:
1.1.1.4 root 1671: static void BPL2MOD (int hpos, uae_u16 v)
1.1.1.3 root 1672: {
1.1 root 1673: v &= ~1;
1.1.1.3 root 1674: if ((uae_s16)bpl2mod == (uae_s16)v)
1.1 root 1675: return;
1676: bpl2mod = v;
1.1.1.4 root 1677: decide_modulos (hpos);
1.1 root 1678: }
1679:
1.1.1.2 root 1680: /* We could do as well without those... */
1.1.1.3 root 1681: static __inline__ void BPL1DAT (uae_u16 v) { bpl1dat = v; }
1682: static __inline__ void BPL2DAT (uae_u16 v) { bpl2dat = v; }
1683: static __inline__ void BPL3DAT (uae_u16 v) { bpl3dat = v; }
1684: static __inline__ void BPL4DAT (uae_u16 v) { bpl4dat = v; }
1685: static __inline__ void BPL5DAT (uae_u16 v) { bpl5dat = v; }
1686: static __inline__ void BPL6DAT (uae_u16 v) { bpl6dat = v; }
1.1.1.6 root 1687: static __inline__ void BPL7DAT (uae_u16 v) { bpl7dat = v; }
1688: static __inline__ void BPL8DAT (uae_u16 v) { bpl8dat = v; }
1.1 root 1689:
1.1.1.4 root 1690: static void DIWSTRT (int hpos, uae_u16 v)
1.1 root 1691: {
1.1.1.4 root 1692: if (diwstrt == v && ! diwhigh_written)
1.1 root 1693: return;
1.1.1.4 root 1694: decide_line (hpos);
1695: diwhigh_written = 0;
1.1.1.3 root 1696: diwstrt = v;
1.1.1.4 root 1697: calcdiw ();
1.1 root 1698: }
1.1.1.4 root 1699:
1700: static void DIWSTOP (int hpos, uae_u16 v)
1.1 root 1701: {
1.1.1.4 root 1702: if (diwstop == v && ! diwhigh_written)
1.1 root 1703: return;
1.1.1.4 root 1704: decide_line (hpos);
1705: diwhigh_written = 0;
1.1.1.3 root 1706: diwstop = v;
1.1.1.4 root 1707: calcdiw ();
1708: }
1709:
1710: static void DIWHIGH (int hpos, uae_u16 v)
1711: {
1.1.1.7 ! root 1712: if (! (currprefs.chipset_mask & CSMASK_ECS_DENISE))
! 1713: return;
1.1.1.4 root 1714: if (diwhigh_written && diwhigh == v)
1715: return;
1716: decide_line (hpos);
1717: diwhigh_written = 1;
1718: diwhigh = v;
1719: calcdiw ();
1.1 root 1720: }
1.1.1.4 root 1721:
1722: static void DDFSTRT (int hpos, uae_u16 v)
1.1.1.3 root 1723: {
1.1.1.7 ! root 1724: v &= (currprefs.chipset_mask & CSMASK_AGA) ? 0x1FC : 0xFC;
1.1.1.2 root 1725: if (ddfstrt == v)
1.1 root 1726: return;
1.1.1.4 root 1727: decide_line (hpos);
1.1.1.3 root 1728: ddfstrt = v;
1.1.1.4 root 1729: calcdiw ();
1.1 root 1730: }
1.1.1.4 root 1731: static void DDFSTOP (int hpos, uae_u16 v)
1.1.1.3 root 1732: {
1.1.1.7 ! root 1733: v &= (currprefs.chipset_mask & CSMASK_AGA) ? 0x1FC : 0xFC;
1.1.1.2 root 1734: if (ddfstop == v)
1.1 root 1735: return;
1.1.1.4 root 1736: decide_line (hpos);
1.1.1.2 root 1737: ddfstop = v;
1.1.1.4 root 1738: calcdiw ();
1.1 root 1739: }
1740:
1.1.1.7 ! root 1741: static void FMODE (uae_u16 v)
! 1742: {
! 1743: if (! (currprefs.chipset_mask & CSMASK_AGA))
! 1744: return;
! 1745: fmode = v;
! 1746: calcdiw ();
! 1747: }
! 1748:
1.1.1.4 root 1749: static void BLTADAT (uae_u16 v)
1.1 root 1750: {
1.1.1.2 root 1751: maybe_blit();
1752:
1753: blt_info.bltadat = v;
1.1 root 1754: }
1.1.1.2 root 1755: /*
1756: * "Loading data shifts it immediately" says the HRM. Well, that may
1757: * be true for BLTBDAT, but not for BLTADAT - it appears the A data must be
1758: * loaded for every word so that AFWM and ALWM can be applied.
1759: */
1.1.1.4 root 1760: static void BLTBDAT (uae_u16 v)
1.1 root 1761: {
1.1.1.3 root 1762: maybe_blit();
1.1.1.2 root 1763:
1764: if (bltcon1 & 2)
1765: blt_info.bltbhold = v << (bltcon1 >> 12);
1766: else
1767: blt_info.bltbhold = v >> (bltcon1 >> 12);
1768: blt_info.bltbdat = v;
1.1 root 1769: }
1.1.1.4 root 1770: static void BLTCDAT (uae_u16 v) { maybe_blit (); blt_info.bltcdat = v; }
1.1 root 1771:
1.1.1.4 root 1772: static void BLTAMOD (uae_u16 v) { maybe_blit (); blt_info.bltamod = (uae_s16)(v & 0xFFFE); }
1773: static void BLTBMOD (uae_u16 v) { maybe_blit (); blt_info.bltbmod = (uae_s16)(v & 0xFFFE); }
1774: static void BLTCMOD (uae_u16 v) { maybe_blit (); blt_info.bltcmod = (uae_s16)(v & 0xFFFE); }
1775: static void BLTDMOD (uae_u16 v) { maybe_blit (); blt_info.bltdmod = (uae_s16)(v & 0xFFFE); }
1.1 root 1776:
1.1.1.4 root 1777: static void BLTCON0 (uae_u16 v) { maybe_blit (); bltcon0 = v; blinea_shift = v >> 12; }
1.1.1.3 root 1778: /* The next category is "Most useless hardware register".
1.1 root 1779: * And the winner is... */
1.1.1.7 ! root 1780: static void BLTCON0L (uae_u16 v)
! 1781: {
! 1782: if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
! 1783: return;
! 1784: maybe_blit (); bltcon0 = (bltcon0 & 0xFF00) | (v & 0xFF);
! 1785: }
1.1.1.4 root 1786: static void BLTCON1 (uae_u16 v) { maybe_blit (); bltcon1 = v; }
1787:
1788: static void BLTAFWM (uae_u16 v) { maybe_blit (); blt_info.bltafwm = v; }
1789: static void BLTALWM (uae_u16 v) { maybe_blit (); blt_info.bltalwm = v; }
1.1 root 1790:
1.1.1.4 root 1791: static void BLTAPTH (uae_u16 v) { maybe_blit (); bltapt = (bltapt & 0xffff) | ((uae_u32)v << 16); }
1792: static void BLTAPTL (uae_u16 v) { maybe_blit (); bltapt = (bltapt & ~0xffff) | (v & 0xFFFE); }
1793: static void BLTBPTH (uae_u16 v) { maybe_blit (); bltbpt = (bltbpt & 0xffff) | ((uae_u32)v << 16); }
1794: static void BLTBPTL (uae_u16 v) { maybe_blit (); bltbpt = (bltbpt & ~0xffff) | (v & 0xFFFE); }
1795: static void BLTCPTH (uae_u16 v) { maybe_blit (); bltcpt = (bltcpt & 0xffff) | ((uae_u32)v << 16); }
1796: static void BLTCPTL (uae_u16 v) { maybe_blit (); bltcpt = (bltcpt & ~0xffff) | (v & 0xFFFE); }
1797: static void BLTDPTH (uae_u16 v) { maybe_blit (); bltdpt = (bltdpt & 0xffff) | ((uae_u32)v << 16); }
1798: static void BLTDPTL (uae_u16 v) { maybe_blit (); bltdpt = (bltdpt & ~0xffff) | (v & 0xFFFE); }
1.1 root 1799:
1.1.1.4 root 1800: static void BLTSIZE (uae_u16 v)
1.1 root 1801: {
1802: bltsize = v;
1.1.1.3 root 1803:
1.1.1.4 root 1804: maybe_blit ();
1.1 root 1805:
1806: blt_info.vblitsize = bltsize >> 6;
1807: blt_info.hblitsize = bltsize & 0x3F;
1808: if (!blt_info.vblitsize) blt_info.vblitsize = 1024;
1809: if (!blt_info.hblitsize) blt_info.hblitsize = 64;
1.1.1.3 root 1810:
1811: bltstate = BLT_init;
1.1.1.4 root 1812: do_blitter ();
1.1 root 1813: }
1.1.1.4 root 1814:
1815: static void BLTSIZV (uae_u16 v)
1.1 root 1816: {
1.1.1.7 ! root 1817: if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
! 1818: return;
1.1.1.4 root 1819: maybe_blit ();
1.1 root 1820: oldvblts = v & 0x7FFF;
1821: }
1.1.1.4 root 1822:
1823: static void BLTSIZH (uae_u16 v)
1.1 root 1824: {
1.1.1.7 ! root 1825: if (! (currprefs.chipset_mask & CSMASK_ECS_AGNUS))
! 1826: return;
1.1.1.4 root 1827: maybe_blit ();
1.1 root 1828: blt_info.hblitsize = v & 0x7FF;
1829: blt_info.vblitsize = oldvblts;
1830: if (!blt_info.vblitsize) blt_info.vblitsize = 32768;
1831: if (!blt_info.hblitsize) blt_info.hblitsize = 0x800;
1.1.1.2 root 1832: bltstate = BLT_init;
1.1.1.5 root 1833: do_blitter ();
1.1 root 1834: }
1.1.1.4 root 1835:
1836: static __inline__ void SPRxCTL_1 (uae_u16 v, int num)
1.1 root 1837: {
1.1.1.2 root 1838: int sprxp;
1839: sprctl[num] = v;
1.1.1.3 root 1840: nr_armed -= sprarmed[num];
1.1.1.2 root 1841: sprarmed[num] = 0;
1.1.1.3 root 1842: if (sprpos[num] == 0 && v == 0) {
1843: sprst[num] = SPR_stop;
1844: spron[num] = 0;
1845: } else
1846: sprst[num] = SPR_waiting_start;
1.1.1.2 root 1847:
1.1.1.4 root 1848: sprxp = coord_hw_to_native_x ((sprpos[num] & 0xFF) * 2 + (v & 1));
1.1.1.2 root 1849: sprxpos[num] = sprxp;
1850: sprvstart[num] = (sprpos[num] >> 8) | ((sprctl[num] << 6) & 0x100);
1851: sprvstop[num] = (sprctl[num] >> 8) | ((sprctl[num] << 7) & 0x100);
1852: }
1.1.1.4 root 1853: static __inline__ void SPRxPOS_1 (uae_u16 v, int num)
1.1.1.2 root 1854: {
1855: int sprxp;
1856: sprpos[num] = v;
1.1.1.4 root 1857: sprxp = coord_hw_to_native_x ((v & 0xFF) * 2 + (sprctl[num] & 1));
1.1.1.2 root 1858: sprxpos[num] = sprxp;
1859: sprvstart[num] = (sprpos[num] >> 8) | ((sprctl[num] << 6) & 0x100);
1860: }
1.1.1.4 root 1861: static __inline__ void SPRxDATA_1 (uae_u16 v, int num)
1.1.1.2 root 1862: {
1863: sprdata[num] = v;
1.1.1.3 root 1864: nr_armed += 1 - sprarmed[num];
1.1.1.2 root 1865: sprarmed[num] = 1;
1866: }
1.1.1.4 root 1867: static __inline__ void SPRxDATB_1 (uae_u16 v, int num)
1.1.1.2 root 1868: {
1869: sprdatb[num] = v;
1870: }
1.1.1.4 root 1871: static void SPRxDATA (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxDATA_1 (v, num); }
1872: static void SPRxDATB (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxDATB_1 (v, num); }
1873: static void SPRxCTL (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxCTL_1 (v, num); }
1874: static void SPRxPOS (int hpos, uae_u16 v, int num) { decide_sprites (hpos); SPRxPOS_1 (v, num); }
1875: static void SPRxPTH (int hpos, uae_u16 v, int num)
1.1 root 1876: {
1.1.1.4 root 1877: decide_sprites (hpos);
1.1.1.3 root 1878: sprpt[num] &= 0xffff;
1879: sprpt[num] |= (uae_u32)v << 16;
1880:
1881: if (sprst[num] == SPR_stop || vpos < vblank_endline)
1882: sprst[num] = SPR_restart;
1883: spron[num] = 1;
1.1 root 1884: }
1.1.1.4 root 1885: static void SPRxPTL (int hpos, uae_u16 v, int num)
1.1 root 1886: {
1.1.1.4 root 1887: decide_sprites (hpos);
1.1.1.3 root 1888: sprpt[num] &= ~0xffff;
1.1.1.2 root 1889: sprpt[num] |= v;
1.1 root 1890:
1.1.1.3 root 1891: if (sprst[num] == SPR_stop || vpos < vblank_endline)
1892: sprst[num] = SPR_restart;
1893: spron[num] = 1;
1894: }
1.1.1.4 root 1895: static void CLXCON (uae_u16 v)
1.1.1.3 root 1896: {
1897: clxcon = v;
1898: clx_sprmask = (((v >> 15) << 7) | ((v >> 14) << 5) | ((v >> 13) << 3) | ((v >> 12) << 1) | 0x55);
1899: }
1.1.1.4 root 1900: static uae_u16 CLXDAT (void)
1.1.1.3 root 1901: {
1902: uae_u16 v = clxdat;
1903: clxdat = 0;
1904: return v;
1905: }
1.1.1.4 root 1906: static void COLOR (int hpos, uae_u16 v, int num)
1.1 root 1907: {
1.1.1.3 root 1908:
1.1 root 1909: v &= 0xFFF;
1910: #if AGA_CHIPSET == 1
1911: {
1.1.1.2 root 1912: /* XXX Broken */
1.1.1.4 root 1913: int r,g,b;
1914: int cr,cg,cb;
1915: int colreg;
1.1.1.3 root 1916: uae_u32 cval;
1.1.1.4 root 1917:
1.1.1.2 root 1918: colreg = ((bplcon3 >> 13) & 7) * 32 + num;
1.1 root 1919: r = (v & 0xF00) >> 8;
1920: g = (v & 0xF0) >> 4;
1921: b = (v & 0xF) >> 0;
1.1.1.5 root 1922: cr = current_colors.color_regs[colreg] >> 16;
1923: cg = (current_colors.color_regs[colreg] >> 8) & 0xFF;
1924: cb = current_colors.color_regs[colreg] & 0xFF;
1.1 root 1925:
1.1.1.2 root 1926: if (bplcon3 & 0x200) {
1.1 root 1927: cr &= 0xF0; cr |= r;
1928: cg &= 0xF0; cg |= g;
1929: cb &= 0xF0; cb |= b;
1930: } else {
1931: cr = r + (r << 4);
1932: cg = g + (g << 4);
1933: cb = b + (b << 4);
1934: }
1935: cval = (cr << 16) | (cg << 8) | cb;
1.1.1.5 root 1936: if (cval == current_colors.color_regs[colreg])
1.1 root 1937: return;
1.1.1.5 root 1938:
1939: /* Call this with the old table still intact. */
1940: record_color_change (hpos, colreg, v);
1941: remembered_color_entry = -1;
1942: current_colors.color_regs[colreg] = cval;
1943: /* current_colors.acolors[colreg] = xcolors[v];*/
1.1 root 1944: }
1.1.1.3 root 1945: #else
1.1 root 1946: {
1.1.1.2 root 1947: if (current_colors.color_regs[num] == v)
1.1 root 1948: return;
1.1.1.2 root 1949: /* Call this with the old table still intact. */
1.1.1.4 root 1950: record_color_change (hpos, num, v);
1.1.1.2 root 1951: remembered_color_entry = -1;
1952: current_colors.color_regs[num] = v;
1953: current_colors.acolors[num] = xcolors[v];
1.1 root 1954: }
1955: #endif
1956: }
1957:
1.1.1.4 root 1958: static void DSKSYNC (uae_u16 v) { dsksync = v; }
1959: static void DSKDAT (uae_u16 v) { write_log ("DSKDAT written. Not good.\n"); }
1960: static void DSKPTH (uae_u16 v) { dskpt = (dskpt & 0xffff) | ((uae_u32)v << 16); }
1961: static void DSKPTL (uae_u16 v) { dskpt = (dskpt & ~0xffff) | (v); }
1.1 root 1962:
1.1.1.4 root 1963: static void DSKLEN (uae_u16 v)
1.1 root 1964: {
1965: if (v & 0x8000) {
1966: dskdmaen = dskdmaen == 1 ? 2 : 1;
1.1.1.3 root 1967: } else {
1.1 root 1968: dskdmaen = 0;
1969: if (eventtab[ev_diskblk].active)
1.1.1.3 root 1970: write_log ("warning: Disk DMA aborted!\n");
1.1 root 1971: eventtab[ev_diskblk].active = 0;
1972: events_schedule();
1.1.1.3 root 1973:
1.1 root 1974: }
1975: dsklen = dsklength = v; dsklength &= 0x3fff;
1976: if (dskdmaen == 2 && dsksync != 0x4489 && (adkcon & 0x400)) {
1.1.1.4 root 1977: write_log ("Non-standard sync: %04x len: %x\n", dsksync, dsklength);
1.1 root 1978: }
1979: if (dskdmaen > 1) {
1980: if (dsklen & 0x4000) {
1981: eventtab[ev_diskblk].active = 1;
1982: eventtab[ev_diskblk].oldcycles = cycles;
1983: eventtab[ev_diskblk].evtime = 40 + cycles; /* ??? */
1984: events_schedule();
1985: } else {
1986: int result = DISK_PrepareReadMFM(dsklength, dsksync, adkcon & 0x400);
1987: if (result) {
1988: eventtab[ev_diskblk].active = 1;
1989: eventtab[ev_diskblk].oldcycles = cycles;
1990: eventtab[ev_diskblk].evtime = result + cycles;
1991: events_schedule();
1992: }
1993: }
1994: }
1995: }
1996:
1.1.1.4 root 1997: static uae_u16 DSKBYTR (void)
1.1 root 1998: {
1.1.1.3 root 1999: uae_u16 v = (dsklen >> 1) & 0x6000;
2000: uae_u16 mfm, byte;
1.1.1.4 root 2001: if (DISK_GetData (&mfm, &byte))
1.1 root 2002: v |= 0x8000;
2003: v |= byte;
1.1.1.4 root 2004: if (dsksync == mfm)
2005: v |= 0x1000;
1.1 root 2006: return v;
2007: }
2008:
1.1.1.4 root 2009: static uae_u16 DSKDATR (void)
1.1 root 2010: {
1.1.1.3 root 2011: uae_u16 mfm, byte;
1.1.1.4 root 2012: DISK_GetData (&mfm, &byte);
1.1.1.3 root 2013: return mfm;
1.1 root 2014: }
1.1.1.3 root 2015:
2016: static uae_u16 potgo_value;
2017:
1.1.1.4 root 2018: static void POTGO (uae_u16 v)
1.1 root 2019: {
1.1.1.3 root 2020: potgo_value = v;
2021: }
2022:
1.1.1.4 root 2023: static uae_u16 POTGOR (void)
1.1.1.3 root 2024: {
2025: uae_u16 v = (potgo_value | (potgo_value << 1)) & 0xAA00;
2026: v |= v >> 1;
2027:
1.1.1.6 root 2028: if (JSEM_ISMOUSE (0, &currprefs)) {
1.1.1.3 root 2029: if (buttonstate[2])
2030: v &= 0xFBFF;
2031:
2032: if (buttonstate[1])
2033: v &= 0xFEFF;
1.1.1.6 root 2034: } else if (JSEM_ISJOY0 (0, &currprefs) || JSEM_ISJOY1 (0, &currprefs)) {
1.1.1.3 root 2035: if (joy0button & 2) v &= 0xfbff;
2036: if (joy0button & 4) v &= 0xfeff;
2037: }
2038:
1.1.1.6 root 2039: if (JSEM_ISJOY0 (1, &currprefs) || JSEM_ISJOY1 (1, &currprefs)) {
1.1.1.3 root 2040: if (joy1button & 2) v &= 0xbfff;
2041: if (joy1button & 4) v &= 0xefff;
2042: }
1.1 root 2043:
2044: return v;
2045: }
1.1.1.4 root 2046:
2047: static uae_u16 POT0DAT (void)
1.1 root 2048: {
1.1.1.3 root 2049: static uae_u16 cnt = 0;
1.1.1.6 root 2050: if (JSEM_ISMOUSE (0, &currprefs)) {
1.1.1.3 root 2051: if (buttonstate[2])
2052: cnt = ((cnt + 1) & 0xFF) | (cnt & 0xFF00);
2053: if (buttonstate[1])
2054: cnt += 0x100;
2055: }
2056:
1.1 root 2057: return cnt;
2058: }
1.1.1.4 root 2059: static uae_u16 JOY0DAT (void)
1.1 root 2060: {
1.1.1.6 root 2061: if (JSEM_ISMOUSE (0, &currprefs)) {
1.1.1.4 root 2062: do_mouse_hack ();
1.1.1.3 root 2063: return ((uae_u8)mouse_x) + ((uae_u16)mouse_y << 8);
2064: }
1.1 root 2065: return joy0dir;
2066: }
1.1.1.4 root 2067: static uae_u16 JOY1DAT (void)
1.1 root 2068: {
1.1.1.6 root 2069: if (JSEM_ISMOUSE (1, &currprefs)) {
1.1.1.4 root 2070: do_mouse_hack ();
1.1.1.3 root 2071: return ((uae_u8)mouse_x) + ((uae_u16)mouse_y << 8);
2072: }
2073: return joy1dir;
1.1 root 2074: }
1.1.1.4 root 2075: static void JOYTEST (uae_u16 v)
1.1 root 2076: {
1.1.1.6 root 2077: if (JSEM_ISMOUSE (0, &currprefs)) {
1.1.1.3 root 2078: mouse_x = v & 0xFC;
2079: mouse_y = (v >> 8) & 0xFC;
1.1 root 2080: }
2081: }
2082:
1.1.1.2 root 2083: /*
1.1.1.4 root 2084: * Here starts the copper code. Can you believe it used to be worse?
1.1.1.2 root 2085: */
2086:
1.1.1.4 root 2087: static __inline__ void copper_adjust_diw (struct copper *cst)
1.1.1.3 root 2088: {
1.1.1.4 root 2089: if (cst->vdiw == DIW_waiting_start && vpos == plffirstline)
2090: cst->vdiw = DIW_waiting_stop;
2091: if (cst->vdiw == DIW_waiting_stop && vpos == plflastline)
2092: cst->vdiw = DIW_waiting_start;
2093: }
2094:
2095: /* Determine which cycles are available for the copper in a display
2096: * with a agiven number of planes. */
2097: static int cycles_for_plane[9][8] = {
2098: { 0, -1, 0, -1, 0, -1, 0, -1 },
2099: { 0, -1, 0, -1, 0, -1, 0, -1 },
2100: { 0, -1, 0, -1, 0, -1, 0, -1 },
2101: { 0, -1, 0, -1, 0, -1, 0, -1 },
2102: { 0, -1, 0, -1, 0, -1, 0, -1 },
2103: { 0, -1, 1, -1, 0, -1, 0, -1 },
2104: { 0, -1, 1, -1, 0, -1, 1, -1 },
2105: { 1, -1, 1, -1, 1, -1, 1, -1 },
2106: { 1, -1, 1, -1, 1, -1, 1, -1 }
2107: };
1.1.1.2 root 2108:
1.1.1.4 root 2109: static unsigned int waitmasktab[256];
1.1.1.2 root 2110:
1.1.1.4 root 2111: #define COP_OFFSET 4
2112:
2113: static __inline__ int copper_in_playfield (enum diw_states diw, int hpos)
1.1.1.3 root 2114: {
1.1.1.4 root 2115: hpos -= COP_OFFSET;
2116: return diw == DIW_waiting_stop && hpos >= plfstrt && hpos < plfstrt + plflinelen;
1.1 root 2117: }
2118:
1.1.1.4 root 2119: static __inline__ int copper_cant_read (enum diw_states diw, int hpos, int planes)
1.1 root 2120: {
1.1.1.4 root 2121: int t;
1.1.1.2 root 2122:
1.1.1.4 root 2123: if (hpos >= ((maxhpos - 2) & ~1))
1.1.1.2 root 2124: return 1;
1.1.1.3 root 2125:
1.1.1.7 ! root 2126: if (currprefs.chipset_mask & CSMASK_AGA)
! 2127: /* FIXME */
! 2128: return 0;
! 2129:
1.1.1.4 root 2130: if (! copper_in_playfield (diw, hpos))
2131: return 0;
1.1.1.3 root 2132:
1.1.1.4 root 2133: t = cycles_for_plane[planes][hpos & 7];
2134: #if 0
2135: if (t == -1)
2136: abort ();
2137: #endif
2138: return t;
1.1.1.2 root 2139: }
2140:
1.1.1.4 root 2141: static void update_copper_1 (int until_hpos)
1.1.1.2 root 2142: {
1.1.1.4 root 2143: unsigned int vp, hp, vcmp, hcmp;
2144: int c_hpos = cop_state.hpos;
2145: int c_vpos = cop_state.vpos;
1.1.1.2 root 2146:
1.1.1.4 root 2147: vp = vpos & (((cop_state.i2 >> 8) & 0x7F) | 0x80);
2148: hp = cop_state.count & (cop_state.i2 & 0xFE);
2149: vcmp = ((cop_state.i1 & (cop_state.i2 | 0x8000)) >> 8);
2150: hcmp = (cop_state.i1 & cop_state.i2 & 0xFE);
1.1 root 2151:
1.1.1.4 root 2152: if (cop_state.state == COP_wait2)
2153: cop_state.state = COP_wait1b;
1.1.1.3 root 2154:
1.1.1.4 root 2155: for (;;) {
2156: if (c_hpos == (maxhpos & ~1)) {
2157: c_hpos = 0;
2158: cop_state.count = 0;
2159: c_vpos++;
2160: }
1.1.1.3 root 2161:
1.1.1.4 root 2162: if (! dmaen (DMA_COPPER))
2163: cop_state.state = COP_stop;
2164:
2165: if (c_vpos > vpos
2166: || c_hpos > until_hpos
2167: || cop_state.state == COP_stop)
1.1.1.3 root 2168: break;
2169:
1.1.1.4 root 2170: if (c_hpos - COP_OFFSET == plfstrt)
2171: copper_adjust_diw (&cop_state);
1.1.1.3 root 2172:
1.1.1.4 root 2173: switch (cop_state.state) {
2174: case COP_rdelay1:
2175: cop_state.state = COP_read1;
1.1.1.3 root 2176: break;
2177:
1.1.1.4 root 2178: case COP_read1:
2179: if (copper_cant_read (cop_state.vdiw, c_hpos, corrected_nr_planes_from_bplcon0))
2180: break;
1.1.1.3 root 2181:
1.1.1.4 root 2182: if (cop_state.do_move) {
2183: cop_state.do_move = 0;
1.1.1.7 ! root 2184: if (cop_state.i1 < (copcon & 2 ? ((currprefs.chipset_mask & CSMASK_AGA) ? 0 : 0x40u) : 0x80u)) {
1.1.1.4 root 2185: cop_state.state = COP_stop;
2186: break;
2187: }
2188: switch (cop_state.i1) {
2189: case 0x088:
2190: cop_state.ip = cop1lc;
2191: cop_state.state = COP_rdelay1;
2192: break;
2193: case 0x08A:
2194: cop_state.ip = cop2lc;
2195: cop_state.state = COP_rdelay1;
2196: break;
2197: default:
2198: custom_wput_1 (c_hpos, cop_state.i1, cop_state.i2);
2199: break;
2200: }
2201: if (cop_state.state != COP_read1)
1.1.1.3 root 2202: break;
2203: }
1.1.1.4 root 2204: cop_state.i1 = chipmem_bank.wget (cop_state.ip);
2205: cop_state.ip += 2;
2206: cop_state.state = COP_read2;
1.1.1.2 root 2207: break;
2208:
1.1.1.4 root 2209: case COP_read2:
2210: if (copper_cant_read (cop_state.vdiw, c_hpos, corrected_nr_planes_from_bplcon0))
2211: break;
2212: cop_state.i2 = chipmem_bank.wget (cop_state.ip);
2213: cop_state.ip += 2;
2214: if (cop_state.ignore_next) {
2215: cop_state.ignore_next = 0;
2216: cop_state.state = COP_read1;
1.1.1.2 root 2217: break;
1.1.1.4 root 2218: }
2219: if ((cop_state.i1 & 1) == 0) {
2220: cop_state.state = COP_read1;
2221: cop_state.do_move = 1;
1.1.1.2 root 2222: } else {
1.1.1.4 root 2223: vp = vpos & (((cop_state.i2 >> 8) & 0x7F) | 0x80);
2224: hp = cop_state.count & (cop_state.i2 & 0xFE);
2225: vcmp = ((cop_state.i1 & (cop_state.i2 | 0x8000)) >> 8);
2226: hcmp = (cop_state.i1 & cop_state.i2 & 0xFE);
2227:
2228: if ((cop_state.i2 & 1) == 0) {
2229: cop_state.state = COP_wait1;
2230: if (cop_state.i1 == 0xFFFF && cop_state.i2 == 0xFFFE)
2231: cop_state.state = COP_stop;
2232: } else {
2233: /* Skip instruction. */
2234: if ((vp > vcmp || (vp == vcmp && hp >= hcmp))
2235: && ((cop_state.i2 & 0x8000) != 0 || ! (DMACONR() & 0x4000)))
2236: cop_state.ignore_next = 1;
2237: cop_state.state = COP_read1;
2238: }
1.1.1.2 root 2239: }
2240: break;
2241:
1.1.1.4 root 2242: case COP_wait1:
2243: if (copper_cant_read (cop_state.vdiw, c_hpos, corrected_nr_planes_from_bplcon0))
1.1.1.2 root 2244: break;
1.1.1.4 root 2245:
2246: /* fall through */
2247:
2248: case COP_wait1b:
2249: {
2250: int do_wait2 = cop_state.state == COP_wait1b;
2251: cop_state.state = COP_wait2;
2252: if (vp == vcmp && corrected_nr_planes_from_bplcon0 < 8) {
2253: int t = cop_state.count + 2;
2254: int next_count = (t & waitmasktab[cop_state.i2 & 0xfe]) | hcmp;
2255: int nexthpos;
2256: if (next_count < t)
2257: next_count = t;
2258: nexthpos = c_hpos + next_count - cop_state.count;
2259: if (nexthpos < (maxhpos & ~1)) {
2260: if (c_hpos - COP_OFFSET < plfstrt && nexthpos - COP_OFFSET >= plfstrt)
2261: copper_adjust_diw (&cop_state);
2262: c_hpos = nexthpos;
2263: cop_state.count = next_count;
2264: do_wait2 = 1;
2265: }
2266: }
2267: if (! do_wait2)
2268: break;
1.1.1.2 root 2269: }
2270:
1.1.1.4 root 2271: /* fall through */
2272:
2273: case COP_wait2:
2274: if (vp < vcmp) {
2275: if (c_hpos - COP_OFFSET < plfstrt)
2276: copper_adjust_diw (&cop_state);
2277:
2278: c_vpos++;
2279: c_hpos = 0;
2280: cop_state.count = 0;
2281: continue;
1.1.1.2 root 2282: }
1.1.1.4 root 2283: hp = cop_state.count & (cop_state.i2 & 0xFE);
2284: if (vp == vcmp && hp < hcmp)
2285: break;
2286: /* Now we know that the comparisons were successful. */
2287: if ((cop_state.i2 & 0x8000) == 0x8000 || ! (DMACONR() & 0x4000))
2288: cop_state.state = COP_read1;
2289: else {
2290: /* We need to wait for the blitter. It won't stop while
2291: * we're in update_copper, so we _could_ as well proceed to
2292: * until_hpos in one big step. There are some tricky
2293: * issues to be considered, though, so use the slow method
2294: * for now. */
2295: cop_state.state = COP_bltwait;
1.1.1.2 root 2296: }
1.1.1.4 root 2297: break;
1.1.1.2 root 2298:
1.1.1.4 root 2299: default:
2300: /* Delay cycles. */
2301: break;
1.1 root 2302: }
2303:
1.1.1.4 root 2304: c_hpos += 2;
2305: if (corrected_nr_planes_from_bplcon0 < 8 || ! copper_in_playfield (cop_state.vdiw, c_hpos))
2306: cop_state.count += 2;
2307: }
2308: cop_state.hpos = c_hpos;
2309: cop_state.vpos = c_vpos;
1.1 root 2310: }
2311:
1.1.1.4 root 2312: static __inline__ void update_copper (int until_hpos)
1.1 root 2313: {
1.1.1.4 root 2314: if (cop_state.vpos > vpos
2315: || cop_state.hpos > until_hpos
2316: || cop_state.state == COP_stop)
1.1 root 2317: return;
1.1.1.4 root 2318: update_copper_1 (until_hpos);
1.1 root 2319: }
2320:
1.1.1.4 root 2321: static int dangerous_reg (int reg)
1.1 root 2322: {
1.1.1.4 root 2323: /* Safe:
2324: * Bitplane pointers, control registers, modulos and data.
2325: * Sprite pointers, control registers, and data.
2326: * Color registers. */
2327: if (reg >= 0xE0 && reg < 0x1C0)
2328: return 0;
2329: return 1;
1.1 root 2330: }
2331:
1.1.1.4 root 2332: static void prepare_copper_1 (void)
1.1.1.2 root 2333: {
1.1.1.4 root 2334: struct copper cst = cop_state;
2335: unsigned int vp, hp, vcmp, hcmp;
1.1.1.2 root 2336:
1.1.1.4 root 2337: vp = vpos & (((cop_state.i2 >> 8) & 0x7F) | 0x80);
2338: hp = cop_state.count & (cop_state.i2 & 0xFE);
2339: vcmp = ((cop_state.i1 & (cop_state.i2 | 0x8000)) >> 8);
2340: hcmp = (cop_state.i1 & cop_state.i2 & 0xFE);
1.1.1.2 root 2341:
1.1.1.4 root 2342: if (cst.state == COP_wait2)
2343: cst.state = COP_wait1b;
1.1.1.3 root 2344:
1.1.1.4 root 2345: for (;;) {
2346: if (cst.hpos == (maxhpos & ~1)) {
2347: cst.hpos = 0;
2348: cst.count = 0;
2349: cst.vpos++;
1.1.1.2 root 2350: }
2351:
1.1.1.4 root 2352: if (! dmaen (DMA_COPPER))
2353: cst.state = COP_stop;
1.1.1.3 root 2354:
1.1.1.4 root 2355: if (cst.vpos > vpos
2356: || cst.state == COP_stop)
2357: {
2358: eventtab[ev_copper].active = 0;
2359: return;
1.1.1.2 root 2360: }
2361:
1.1.1.4 root 2362: if (cst.hpos - COP_OFFSET == plfstrt)
2363: copper_adjust_diw (&cst);
1.1.1.2 root 2364:
1.1.1.4 root 2365: switch (cst.state) {
2366: case COP_rdelay1:
2367: cst.state = COP_read1;
1.1.1.3 root 2368: break;
1.1.1.2 root 2369:
1.1.1.4 root 2370: case COP_read1:
2371: if (copper_cant_read (cst.vdiw, cst.hpos, corrected_nr_planes_from_bplcon0))
2372: break;
1.1.1.2 root 2373:
1.1.1.4 root 2374: if (cst.do_move) {
2375: cst.do_move = 0;
1.1.1.7 ! root 2376: if (cst.i1 < (copcon & 2 ? ((currprefs.chipset_mask & CSMASK_AGA) ? 0 : 0x40u) : 0x80u)) {
1.1.1.4 root 2377: cst.state = COP_stop;
2378: eventtab[ev_copper].active = 0;
2379: return;
1.1.1.6 root 2380: } else if (dangerous_reg (cst.i1)) {
1.1.1.4 root 2381: eventtab[ev_copper].active = 1;
2382: eventtab[ev_copper].oldcycles = cycles;
2383: eventtab[ev_copper].evtime = cycles + cst.hpos - current_hpos () + (cst.vpos - cop_state.vpos) * maxhpos;
2384: return;
1.1.1.3 root 2385: }
2386: }
1.1.1.2 root 2387:
1.1.1.4 root 2388: cst.i1 = chipmem_bank.wget (cst.ip);
2389: cst.ip += 2;
2390: cst.state = COP_read2;
2391: break;
1.1.1.2 root 2392:
1.1.1.4 root 2393: case COP_read2:
2394: if (copper_cant_read (cst.vdiw, cst.hpos, corrected_nr_planes_from_bplcon0))
2395: break;
2396: cst.i2 = chipmem_bank.wget (cst.ip);
2397: cst.ip += 2;
2398: if (cst.ignore_next) {
2399: cst.ignore_next = 0;
2400: cst.state = COP_read1;
2401: break;
1.1.1.3 root 2402: }
1.1.1.4 root 2403: if ((cst.i1 & 1) == 0) {
2404: cst.state = COP_read1;
2405: cst.do_move = 1;
1.1.1.3 root 2406: } else {
1.1.1.4 root 2407: vp = vpos & (((cst.i2 >> 8) & 0x7F) | 0x80);
2408: hp = cst.count & (cst.i2 & 0xFE);
2409: vcmp = ((cst.i1 & (cst.i2 | 0x8000)) >> 8);
2410: hcmp = (cst.i1 & cst.i2 & 0xFE);
2411:
2412: if ((cst.i2 & 1) == 0) {
2413: cst.state = COP_wait1;
2414: if (cst.i1 == 0xFFFF && cst.i2 == 0xFFFE)
2415: cst.state = COP_stop;
1.1.1.3 root 2416: } else {
1.1.1.4 root 2417: /* Skip instruction. */
2418: if ((vp > vcmp || (vp == vcmp && hp >= hcmp))
2419: && ((cst.i2 & 0x8000) != 0 || ! (DMACONR() & 0x4000)))
2420: cst.ignore_next = 1;
2421: cst.state = COP_read1;
1.1.1.3 root 2422: }
2423: }
1.1.1.4 root 2424: break;
1.1 root 2425:
1.1.1.4 root 2426: case COP_wait1:
2427: if (copper_cant_read (cst.vdiw, cst.hpos, corrected_nr_planes_from_bplcon0))
2428: break;
1.1 root 2429:
1.1.1.4 root 2430: /* fall through */
1.1 root 2431:
1.1.1.4 root 2432: case COP_wait1b:
2433: {
2434: int do_wait2 = cst.state == COP_wait1b;
2435: cst.state = COP_wait2;
2436: if (vp == vcmp && corrected_nr_planes_from_bplcon0 < 8) {
2437: int t = cst.count + 2;
2438: int next_count = (t & waitmasktab[cst.i2 & 0xfe]) | hcmp;
2439: int nexthpos;
2440: if (next_count < t)
2441: next_count = t;
2442: nexthpos = cst.hpos + next_count - cst.count;
2443: if (nexthpos < (maxhpos & ~1)) {
2444: if (cst.hpos - COP_OFFSET < plfstrt && nexthpos - COP_OFFSET >= plfstrt)
2445: copper_adjust_diw (&cst);
2446: cst.hpos = nexthpos;
2447: cst.count = next_count;
2448: do_wait2 = 1;
2449: }
2450: }
2451: if (! do_wait2)
2452: break;
1.1 root 2453: }
1.1.1.3 root 2454:
1.1.1.4 root 2455: /* fall through */
2456:
2457: case COP_wait2:
2458: if (vp < vcmp) {
2459: if (cst.hpos - COP_OFFSET < plfstrt)
2460: copper_adjust_diw (&cst);
2461:
2462: cst.vpos++;
2463: cst.count = 0;
2464: cst.hpos = 0;
2465: continue;
1.1 root 2466: }
1.1.1.4 root 2467: hp = cst.count & (cst.i2 & 0xFE);
2468: if (vp == vcmp && hp < hcmp)
2469: break;
2470: #if 0
2471: if (nexthpos != -1)
2472: if (nexthpos != cst.count)
2473: printf ("ERROR\n");
2474: nexthpos = -1;
2475: #endif
2476: /* Now we know that the comparisons were successful. */
2477: if ((cst.i2 & 0x8000) == 0x8000 || ! (DMACONR() & 0x4000))
2478: cst.state = COP_read1;
2479: else {
2480: /* We need to wait for the blitter. It won't stop while
2481: * we're in update_copper, so we _could_ as well proceed to
2482: * until_hpos in one big step. There are some tricky
2483: * issues to be considered, though, so use the slow method
2484: * for now. */
2485: cst.state = COP_bltwait;
1.1 root 2486: }
1.1.1.4 root 2487: break;
1.1.1.2 root 2488:
1.1.1.4 root 2489: default:
2490: /* Delay cycles. */
2491: break;
1.1.1.2 root 2492: }
1.1.1.3 root 2493:
1.1.1.4 root 2494: cst.hpos += 2;
2495: if (corrected_nr_planes_from_bplcon0 < 8 || ! copper_in_playfield (cst.vdiw, cst.hpos))
2496: cst.count += 2;
1.1.1.3 root 2497: }
2498: }
1.1.1.2 root 2499:
1.1.1.4 root 2500: void blitter_done_notify (void)
1.1 root 2501: {
1.1.1.4 root 2502: if (cop_state.state != COP_bltwait)
2503: return;
2504: update_copper (current_hpos ());
2505: cop_state.state = COP_wait2;
2506: eventtab[ev_copper].active = 1;
2507: eventtab[ev_copper].oldcycles = cycles;
2508: eventtab[ev_copper].evtime = (cycles + 2) & ~1;
2509: events_schedule ();
1.1.1.2 root 2510: }
2511:
1.1.1.4 root 2512: static void do_copper (void)
1.1.1.2 root 2513: {
1.1.1.4 root 2514: int hpos = current_hpos ();
2515: update_copper (hpos);
2516: prepare_copper ();
2517: if (eventtab[ev_copper].evtime == cycles && eventtab[ev_copper].active)
2518: abort ();
1.1.1.2 root 2519: }
2520:
1.1.1.4 root 2521: static void diskblk_handler (void)
1.1.1.2 root 2522: {
1.1.1.4 root 2523: regs.spcflags |= SPCFLAG_DISK;
2524: eventtab[ev_diskblk].active = 0;
1.1.1.2 root 2525: }
2526:
1.1.1.4 root 2527: void do_disk (void)
1.1.1.2 root 2528: {
1.1.1.4 root 2529: if (dskdmaen != 2 && (regs.spcflags & SPCFLAG_DISK)) {
2530: static int warned = 0;
2531: if (!warned)
2532: warned++, write_log ("BUG!\n");
1.1.1.2 root 2533: return;
2534: }
1.1.1.4 root 2535: if (dmaen(0x10)){
2536: if (dsklen & 0x4000) {
2537: if (!chipmem_bank.check (dskpt, 2*dsklength)) {
2538: write_log ("warning: Bad disk write DMA pointer\n");
2539: } else {
2540: uae_u8 *mfmp = get_real_address (dskpt);
2541: int i;
2542: DISK_InitWrite();
1.1.1.3 root 2543:
1.1.1.4 root 2544: for (i = 0; i < dsklength; i++) {
2545: uae_u16 d = (*mfmp << 8) + *(mfmp+1);
2546: mfmwrite[i] = d;
2547: mfmp += 2;
2548: }
2549: DISK_WriteData(dsklength);
1.1.1.2 root 2550: }
1.1.1.4 root 2551: } else {
2552: DISK_ReadMFM (dskpt);
1.1.1.2 root 2553: }
1.1.1.4 root 2554: regs.spcflags &= ~SPCFLAG_DISK;
2555: INTREQ(0x9002);
2556: dskdmaen = -1;
1.1.1.2 root 2557: }
1.1.1.4 root 2558: }
1.1.1.2 root 2559:
1.1.1.4 root 2560: static void do_sprites (int currvp, int currhp)
2561: {
2562: int i;
2563: int maxspr;
1.1.1.2 root 2564:
1.1.1.4 root 2565: #if 0
2566: if (currvp == 0)
2567: return;
2568: #else
2569: /* I don't know whether this is right. Some programs write the sprite pointers
2570: * directly at the start of the copper list. With the currvp==0 check, the
2571: * first two words of data are read on the second line in the frame. The problem
2572: * occurs when the program jumps to another copperlist a few lines further down
2573: * which _also_ writes the sprite pointer registers. This means that a) writing
2574: * to the sprite pointers sets the state to SPR_restart; or b) that sprite DMA
2575: * is disabled until the end of the vertical blanking interval. The HRM
2576: * isn't clear - it says that the vertical sprite position can be set to any
2577: * value, but this wouldn't be the first mistake... */
2578: /* Update: I modified one of the programs to write the sprite pointers the
2579: * second time only _after_ the VBlank interval, and it showed the same behaviour
2580: * as it did unmodified under UAE with the above check. This indicates that the
2581: * solution below is correct. */
2582: if (currvp < vblank_endline)
2583: return;
1.1.1.2 root 2584: #endif
1.1.1.3 root 2585:
1.1.1.4 root 2586: /* The graph in the HRM, p. 195 seems to indicate that sprite 0 is
2587: * fetched at cycle 0x14 and thus can't be disabled by bitplane DMA. */
2588: maxspr = currhp/4 - 0x14/4;
2589: if (maxspr < 0)
2590: return;
2591: if (maxspr > 8)
2592: maxspr = 8;
1.1.1.2 root 2593:
1.1.1.4 root 2594: for (i = 0; i < maxspr; i++) {
2595: int fetch = 0;
1.1.1.2 root 2596:
1.1.1.4 root 2597: if (spron[i] == 0)
2598: continue;
1.1.1.2 root 2599:
1.1.1.4 root 2600: if (sprst[i] == SPR_restart) {
2601: fetch = 2;
2602: spron[i] = 1;
2603: } else if ((sprst[i] == SPR_waiting_start && sprvstart[i] == vpos) || sprst[i] == SPR_waiting_stop) {
2604: fetch = 1;
2605: sprst[i] = SPR_waiting_stop;
1.1.1.2 root 2606: }
1.1.1.4 root 2607: if (sprst[i] == SPR_waiting_stop && sprvstop[i] == vpos) {
2608: fetch = 2;
2609: sprst[i] = SPR_waiting_start;
1.1.1.2 root 2610: }
1.1.1.3 root 2611:
1.1.1.4 root 2612: if (fetch && dmaen(DMA_SPRITE)) {
2613: uae_u16 data1 = chipmem_bank.wget(sprpt[i]);
2614: uae_u16 data2 = chipmem_bank.wget(sprpt[i]+2);
2615: sprpt[i] += 4;
1.1.1.3 root 2616:
1.1.1.4 root 2617: if (fetch == 1) {
2618: /* Hack for X mouse auto-calibration */
2619: if (i == 0 && !sprvbfl && ((sprpos[0] & 0xff) << 2) > 2 * DISPLAY_LEFT_SHIFT) {
2620: spr0ctl=sprctl[0];
2621: spr0pos=sprpos[0];
2622: sprvbfl=2;
1.1.1.3 root 2623: }
1.1.1.4 root 2624: SPRxDATB_1(data2, i);
2625: SPRxDATA_1(data1, i);
2626: } else {
2627: SPRxPOS_1(data1, i);
2628: SPRxCTL_1(data2, i);
1.1.1.3 root 2629: }
1.1 root 2630: }
2631: }
2632: }
2633:
1.1.1.4 root 2634: static void init_sprites (void)
1.1 root 2635: {
1.1.1.4 root 2636: int i;
1.1.1.2 root 2637:
1.1.1.4 root 2638: for (i = 0; i < 8; i++) {
2639: /* ???? */
2640: sprst[i] = SPR_stop;
2641: spron[i] = 0;
2642: }
1.1.1.2 root 2643:
1.1.1.4 root 2644: memset (sprpos, 0, sizeof sprpos);
2645: memset (sprctl, 0, sizeof sprctl);
2646: }
1.1.1.2 root 2647:
1.1.1.3 root 2648: static void adjust_array_sizes (void)
1.1.1.2 root 2649: {
2650: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
1.1.1.3 root 2651: if (delta_sprite_draw) {
2652: void *p1,*p2;
2653: int mcc = max_sprite_draw + 200 + delta_sprite_draw;
2654: delta_sprite_draw = 0;
2655: p1 = realloc (sprite_positions[0], mcc * sizeof (struct sprite_draw));
2656: p2 = realloc (sprite_positions[1], mcc * sizeof (struct sprite_draw));
2657: if (p1) sprite_positions[0] = p1;
2658: if (p2) sprite_positions[1] = p2;
2659: if (p1 && p2) {
2660: fprintf (stderr, "new max_sprite_draw=%d\n",mcc);
1.1.1.2 root 2661: max_sprite_draw = mcc;
2662: }
2663: }
1.1.1.3 root 2664: if (delta_color_change) {
2665: void *p1,*p2;
2666: int mcc = max_color_change + 200 + delta_color_change;
2667: delta_color_change = 0;
2668: p1 = realloc (color_changes[0], mcc * sizeof (struct color_change));
2669: p2 = realloc (color_changes[1], mcc * sizeof (struct color_change));
2670: if (p1) color_changes[0] = p1;
2671: if (p2) color_changes[1] = p2;
2672: if (p1 && p2) {
2673: fprintf (stderr, "new max_color_change=%d\n",mcc);
1.1.1.2 root 2674: max_color_change = mcc;
1.1.1.3 root 2675: }
2676: }
2677: if (delta_delay_change) {
2678: void *p;
2679: int mcc = max_delay_change + 200 + delta_delay_change;
2680: delta_delay_change = 0;
2681: p = realloc (delay_changes, mcc * sizeof (struct delay_change));
2682: if (p) {
2683: fprintf (stderr, "new max_delay_change=%d\n",mcc);
2684: delay_changes = p;
2685: max_delay_change = mcc;
2686: }
1.1.1.2 root 2687: }
2688: #endif
1.1.1.3 root 2689: }
2690:
1.1.1.4 root 2691: static void init_hardware_frame (void)
1.1.1.3 root 2692: {
1.1.1.4 root 2693: next_lineno = 0;
2694: nextline_how = nln_normal;
2695: diwstate = DIW_waiting_start;
2696: hdiwstate = DIW_waiting_start;
2697: }
1.1.1.2 root 2698:
1.1.1.4 root 2699: void init_hardware_for_drawing_frame (void)
2700: {
1.1.1.3 root 2701: adjust_array_sizes ();
2702:
1.1.1.2 root 2703: next_color_change = 0;
2704: next_delay_change = 0;
2705: next_sprite_draw = 0;
1.1.1.3 root 2706:
1.1.1.2 root 2707: next_color_entry = 0;
2708: remembered_color_entry = -1;
2709: prev_sprite_positions = sprite_positions[current_change_set];
2710: curr_sprite_positions = sprite_positions[current_change_set ^ 1];
2711: prev_color_changes = color_changes[current_change_set];
2712: curr_color_changes = color_changes[current_change_set ^ 1];
2713: prev_color_tables = color_tables[current_change_set];
2714: curr_color_tables = color_tables[current_change_set ^ 1];
1.1.1.3 root 2715:
1.1.1.2 root 2716: prev_drawinfo = line_drawinfo[current_change_set];
1.1.1.4 root 2717: curr_drawinfo = line_drawinfo[current_change_set ^ 1];
2718: current_change_set ^= 1;
1.1.1.3 root 2719:
1.1.1.4 root 2720: color_src_match = color_dest_match = -1;
1.1.1.3 root 2721: }
2722:
1.1.1.2 root 2723: static void vsync_handler (void)
1.1 root 2724: {
1.1.1.4 root 2725: if (currprefs.m68k_speed == -1) {
2726: frame_time_t curr_time = read_processor_time ();
1.1.1.3 root 2727: vsyncmintime += vsynctime;
2728: /* @@@ Mathias? How do you think we should do this? */
2729: /* If we are too far behind, or we just did a reset, adjust the
2730: * needed time. */
1.1.1.4 root 2731: if ((long int)(curr_time - vsyncmintime) > 0 || rpt_did_reset)
1.1.1.3 root 2732: vsyncmintime = curr_time + vsynctime;
1.1.1.4 root 2733: rpt_did_reset = 0;
1.1.1.3 root 2734: }
1.1.1.4 root 2735:
1.1.1.3 root 2736: handle_events ();
1.1 root 2737:
1.1.1.3 root 2738: getjoystate (0, &joy0dir, &joy0button);
2739: getjoystate (1, &joy1dir, &joy1button);
1.1 root 2740:
1.1.1.4 root 2741: INTREQ (0x8020);
1.1.1.3 root 2742: if (bplcon0 & 4)
1.1.1.2 root 2743: lof ^= 0x8000;
1.1.1.3 root 2744:
1.1.1.4 root 2745: vsync_handle_redraw (lof, lof_changed);
2746: if (quit_program > 0)
1.1.1.3 root 2747: return;
2748:
1.1.1.4 root 2749: {
1.1.1.3 root 2750: static int cnt = 0;
2751: if (cnt == 0) {
2752: /* resolution_check_change (); */
2753: DISK_check_change ();
2754: cnt = 5;
2755: }
2756: cnt--;
1.1.1.2 root 2757: }
1.1.1.3 root 2758:
1.1.1.7 ! root 2759: /* For now, let's only allow this to change at vsync time. It gets too
! 2760: * hairy otherwise. */
! 2761: if (beamcon0 != new_beamcon0)
! 2762: init_hz ();
! 2763:
1.1.1.2 root 2764: lof_changed = 0;
1.1.1.3 root 2765:
1.1.1.4 root 2766: cop_state.ip = cop1lc;
2767: cop_state.state = COP_read1;
2768: cop_state.vpos = 0;
2769: cop_state.hpos = 0;
2770: cop_state.count = 0;
2771: cop_state.do_move = 0;
2772: cop_state.ignore_next = 0;
2773: cop_state.vdiw = DIW_waiting_start;
2774:
2775: init_hardware_frame ();
2776:
1.1 root 2777: #ifdef HAVE_GETTIMEOFDAY
2778: {
2779: struct timeval tv;
2780: unsigned long int newtime;
1.1.1.3 root 2781:
2782: gettimeofday(&tv,NULL);
1.1 root 2783: newtime = (tv.tv_sec-seconds_base) * 1000 + tv.tv_usec / 1000;
1.1.1.3 root 2784:
2785: if (!bogusframe) {
1.1.1.6 root 2786: lastframetime = newtime - msecs;
2787:
2788: #if 0 /* This doesn't appear to work too well yet... later. */
2789: if (n_consecutive_skipped > currprefs.sound_pri_cutoff
2790: || lastframetime < currprefs.sound_pri_time)
2791: {
2792: n_consecutive_skipped = 0;
2793: clear_inhibit_frame (IHF_SOUNDADJUST);
2794: } else {
2795: n_consecutive_skipped++;
2796: set_inhibit_frame (IHF_SOUNDADJUST);
2797: total_skipped++;
2798: }
2799: #endif
2800:
2801: frametime += lastframetime;
1.1 root 2802: timeframes++;
1.1.1.6 root 2803:
2804: if ((timeframes & 127) == 0)
2805: gui_fps (1000 * timeframes / frametime);
1.1 root 2806: }
2807: msecs = newtime;
2808: bogusframe = 0;
2809: }
2810: #endif
1.1.1.3 root 2811: if (ievent_alive > 0)
2812: ievent_alive--;
1.1.1.7 ! root 2813: if (timehack_alive > 0)
! 2814: timehack_alive--;
1.1 root 2815: CIA_vsync_handler();
2816: }
2817:
1.1.1.4 root 2818: static void hsync_handler (void)
1.1 root 2819: {
1.1.1.4 root 2820: update_copper (maxhpos);
1.1.1.3 root 2821:
1.1.1.2 root 2822: finish_decisions ();
1.1.1.4 root 2823: do_modulos (current_hpos ());
1.1.1.2 root 2824:
1.1.1.5 root 2825: hsync_record_line_state (next_lineno, nextline_how, thisline_changed);
1.1 root 2826:
2827: eventtab[ev_hsync].evtime += cycles - eventtab[ev_hsync].oldcycles;
2828: eventtab[ev_hsync].oldcycles = cycles;
2829: CIA_hsync_handler();
1.1.1.3 root 2830:
2831: if (currprefs.produce_sound > 0) {
1.1 root 2832: int nr;
1.1.1.4 root 2833:
2834: update_audio ();
2835:
1.1 root 2836: /* Sound data is fetched at the beginning of each line */
2837: for (nr = 0; nr < 4; nr++) {
2838: struct audio_channel_data *cdp = audio_channel + nr;
1.1.1.3 root 2839:
1.1 root 2840: if (cdp->data_written == 2) {
2841: cdp->data_written = 0;
2842: cdp->nextdat = chipmem_bank.wget(cdp->pt);
2843: cdp->pt += 2;
2844: if (cdp->state == 2 || cdp->state == 3) {
2845: if (cdp->wlen == 1) {
2846: cdp->pt = cdp->lc;
2847: cdp->wlen = cdp->len;
2848: cdp->intreq2 = 1;
2849: } else
2850: cdp->wlen--;
2851: }
2852: }
2853: }
2854: }
1.1.1.4 root 2855:
2856: hardware_line_completed (next_lineno);
2857:
1.1 root 2858: if (++vpos == (maxvpos + (lof != 0))) {
2859: vpos = 0;
2860: vsync_handler();
2861: }
1.1.1.2 root 2862:
1.1.1.4 root 2863: is_lastline = vpos + 1 == maxvpos + (lof != 0) && currprefs.m68k_speed == -1 && ! rpt_did_reset;
1.1.1.3 root 2864:
1.1.1.4 root 2865: if ((bplcon0 & 4) && currprefs.gfx_linedbl)
2866: notice_interlace_seen ();
1.1.1.2 root 2867:
2868: if (framecnt == 0) {
1.1.1.4 root 2869: int lineno = vpos;
2870: nextline_how = nln_normal;
1.1.1.3 root 2871: if (currprefs.gfx_linedbl) {
1.1 root 2872: lineno *= 2;
1.1.1.5 root 2873: nextline_how = currprefs.gfx_linedbl == 1 ? nln_doubled : nln_nblack;
1.1.1.2 root 2874: if (bplcon0 & 4) {
2875: if (!lof) {
2876: lineno++;
1.1.1.4 root 2877: nextline_how = nln_lower;
1.1.1.2 root 2878: } else {
1.1.1.4 root 2879: nextline_how = nln_upper;
1.1.1.2 root 2880: }
1.1 root 2881: }
2882: }
2883: next_lineno = lineno;
1.1.1.2 root 2884: reset_decisions ();
1.1 root 2885: }
1.1.1.3 root 2886: if (uae_int_requested) {
2887: set_uae_int_flag ();
2888: INTREQ (0xA000);
2889: }
1.1.1.4 root 2890: update_copper (0);
2891: prepare_copper ();
2892: if (eventtab[ev_copper].evtime == cycles && eventtab[ev_copper].active)
2893: abort ();
1.1.1.3 root 2894: }
2895:
2896: static void init_eventtab (void)
2897: {
2898: int i;
2899:
2900: for(i = 0; i < ev_max; i++) {
2901: eventtab[i].active = 0;
2902: eventtab[i].oldcycles = 0;
2903: }
1.1.1.4 root 2904:
1.1.1.3 root 2905: eventtab[ev_cia].handler = CIA_handler;
1.1.1.4 root 2906: eventtab[ev_copper].handler = do_copper;
1.1.1.3 root 2907: eventtab[ev_hsync].handler = hsync_handler;
2908: eventtab[ev_hsync].evtime = maxhpos + cycles;
2909: eventtab[ev_hsync].active = 1;
2910:
2911: eventtab[ev_blitter].handler = blitter_handler;
2912: eventtab[ev_blitter].active = 0;
2913: eventtab[ev_diskblk].handler = diskblk_handler;
2914: eventtab[ev_diskblk].active = 0;
2915: eventtab[ev_diskindex].handler = diskindex_handler;
2916: eventtab[ev_diskindex].active = 0;
1.1.1.4 root 2917:
1.1.1.3 root 2918: events_schedule ();
1.1 root 2919: }
2920:
1.1.1.3 root 2921: void customreset (void)
1.1 root 2922: {
1.1.1.4 root 2923: int i;
1.1 root 2924: #ifdef HAVE_GETTIMEOFDAY
2925: struct timeval tv;
2926: #endif
1.1.1.2 root 2927:
1.1.1.3 root 2928: for (i = 0; i < sizeof current_colors.color_regs / sizeof *current_colors.color_regs; i++)
2929: current_colors.color_regs[i] = -1;
2930:
2931: expamem_reset ();
1.1.1.4 root 2932:
1.1.1.3 root 2933: CIA_reset ();
2934: cycles = 0;
1.1 root 2935: regs.spcflags &= SPCFLAG_BRK;
1.1.1.3 root 2936:
1.1.1.2 root 2937: vpos = 0;
1.1 root 2938: lof = 0;
1.1.1.3 root 2939:
1.1.1.4 root 2940: if (needmousehack ()) {
1.1.1.3 root 2941: #if 0
1.1.1.4 root 2942: mousehack_setfollow();
1.1.1.3 root 2943: #else
1.1.1.4 root 2944: mousehack_setdontcare();
1.1.1.3 root 2945: #endif
1.1 root 2946: } else {
2947: mousestate = normal_mouse;
2948: }
1.1.1.3 root 2949: ievent_alive = 0;
1.1.1.7 ! root 2950: timehack_alive = 0;
1.1.1.3 root 2951:
2952: clx_sprmask = 0xFF;
2953: clxdat = 0;
2954:
1.1.1.4 root 2955: memset (sprarmed, 0, sizeof sprarmed);
1.1.1.3 root 2956: nr_armed = 0;
1.1 root 2957:
2958: dmacon = intena = 0;
2959: bltstate = BLT_done;
1.1.1.4 root 2960: cop_state.state = COP_stop;
1.1.1.2 root 2961: diwstate = DIW_waiting_start;
1.1.1.3 root 2962: hdiwstate = DIW_waiting_start;
1.1 root 2963: copcon = 0;
2964: dskdmaen = 0;
2965: cycles = 0;
1.1.1.3 root 2966:
1.1.1.2 root 2967: bplcon4 = 0x11; /* Get AGA chipset into ECS compatibility mode */
2968: bplcon3 = 0xC00;
1.1 root 2969:
1.1.1.7 ! root 2970: new_beamcon0 = ntscmode ? 0x00 : 0x20;
! 2971: init_hz ();
! 2972:
! 2973: audio_reset ();
! 2974:
1.1.1.3 root 2975: init_eventtab ();
1.1.1.2 root 2976:
1.1.1.3 root 2977: init_sprites ();
2978:
1.1.1.2 root 2979: init_hardware_frame ();
1.1.1.4 root 2980: reset_drawing ();
2981:
1.1.1.2 root 2982: reset_decisions ();
1.1.1.3 root 2983:
1.1 root 2984: #ifdef HAVE_GETTIMEOFDAY
1.1.1.4 root 2985: gettimeofday (&tv, NULL);
1.1 root 2986: seconds_base = tv.tv_sec;
2987: bogusframe = 1;
2988: #endif
2989: }
2990:
1.1.1.3 root 2991: void dumpcustom (void)
1.1 root 2992: {
1.1.1.6 root 2993: write_log ("DMACON: %x INTENA: %x INTREQ: %x VPOS: %x HPOS: %x\n", DMACONR(),
2994: (unsigned int)intena, (unsigned int)intreq, (unsigned int)vpos, (unsigned int)current_hpos());
2995: write_log ("COP1LC: %08lx, COP2LC: %08lx\n", (unsigned long)cop1lc, (unsigned long)cop2lc);
1.1.1.3 root 2996: if (timeframes) {
1.1.1.6 root 2997: write_log ("Average frame time: %d ms [frames: %d time: %d]\n",
2998: frametime / timeframes, timeframes, frametime);
2999: if (total_skipped)
3000: write_log ("Skipped frames: %d\n", total_skipped);
1.1 root 3001: }
1.1.1.3 root 3002: dump_audio_bench ();
1.1.1.4 root 3003: /*for (i=0; i<256; i++) if (blitcount[i]) fprintf (stderr, "minterm %x = %d\n",i,blitcount[i]); blitter debug */
1.1 root 3004: }
3005:
1.1.1.3 root 3006: int intlev (void)
1.1 root 3007: {
1.1.1.3 root 3008: uae_u16 imask = intreq & intena;
1.1 root 3009: if (imask && (intena & 0x4000)){
3010: if (imask & 0x2000) return 6;
3011: if (imask & 0x1800) return 5;
3012: if (imask & 0x0780) return 4;
3013: if (imask & 0x0070) return 3;
3014: if (imask & 0x0008) return 2;
3015: if (imask & 0x0007) return 1;
3016: }
3017: return -1;
3018: }
3019:
1.1.1.4 root 3020: static void gen_custom_tables (void)
3021: {
3022: int i;
3023: for (i = 0; i < 256; i++) {
3024: unsigned int j;
3025: sprtaba[i] = ((((i >> 7) & 1) << 0)
3026: | (((i >> 6) & 1) << 2)
3027: | (((i >> 5) & 1) << 4)
3028: | (((i >> 4) & 1) << 6)
3029: | (((i >> 3) & 1) << 8)
3030: | (((i >> 2) & 1) << 10)
3031: | (((i >> 1) & 1) << 12)
3032: | (((i >> 0) & 1) << 14));
3033: sprtabb[i] = sprtaba[i] * 2;
3034: for (j = 0; j < 511; j = (j << 1) | 1)
3035: if ((i & ~j) == 0)
3036: waitmasktab[i] = ~j;
3037: }
3038: }
3039:
1.1.1.3 root 3040: void custom_init (void)
1.1 root 3041: {
1.1.1.7 ! root 3042: uaecptr pos;
! 3043:
1.1.1.4 root 3044: #ifdef OS_WITHOUT_MEMORY_MANAGEMENT
1.1 root 3045: int num;
1.1.1.2 root 3046:
1.1.1.4 root 3047: for (num = 0; num < 2; num++) {
3048: sprite_positions[num] = xmalloc (max_sprite_draw * sizeof (struct sprite_draw));
3049: color_changes[num] = xmalloc (max_color_change * sizeof (struct color_change));
1.1.1.2 root 3050: }
1.1.1.4 root 3051: delay_changes = xmalloc (max_delay_change * sizeof (struct delay_change));
1.1.1.2 root 3052: #endif
1.1.1.3 root 3053:
1.1.1.7 ! root 3054: pos = here ();
! 3055:
! 3056: org (0xF0FF70);
! 3057: calltrap (deftrap (mousehack_helper));
! 3058: dw (RTS);
! 3059:
! 3060: org (0xF0FFA0);
! 3061: calltrap (deftrap (timehack_helper));
! 3062: dw (RTS);
! 3063:
! 3064: org (pos);
! 3065:
1.1.1.2 root 3066: init_decisions ();
3067:
1.1.1.4 root 3068: gen_custom_tables ();
3069: build_blitfilltable ();
3070:
3071: drawing_init ();
3072:
3073: mousestate = unknown_mouse;
3074:
3075: if (needmousehack ())
3076: mousehack_setfollow();
1.1 root 3077: }
3078:
3079: /* Custom chip memory bank */
3080:
1.1.1.4 root 3081: static uae_u32 custom_lget (uaecptr) REGPARAM;
3082: static uae_u32 custom_wget (uaecptr) REGPARAM;
3083: static uae_u32 custom_bget (uaecptr) REGPARAM;
3084: static void custom_lput (uaecptr, uae_u32) REGPARAM;
3085: static void custom_wput (uaecptr, uae_u32) REGPARAM;
3086: static void custom_bput (uaecptr, uae_u32) REGPARAM;
1.1 root 3087:
3088: addrbank custom_bank = {
3089: custom_lget, custom_wget, custom_bget,
3090: custom_lput, custom_wput, custom_bput,
3091: default_xlate, default_check
3092: };
3093:
1.1.1.3 root 3094: uae_u32 REGPARAM2 custom_wget (uaecptr addr)
1.1 root 3095: {
1.1.1.4 root 3096: switch (addr & 0x1FE) {
1.1 root 3097: case 0x002: return DMACONR();
3098: case 0x004: return VPOSR();
3099: case 0x006: return VHPOSR();
1.1.1.3 root 3100:
1.1 root 3101: case 0x008: return DSKDATR();
3102:
3103: case 0x00A: return JOY0DAT();
3104: case 0x00C: return JOY1DAT();
1.1.1.3 root 3105: case 0x00E: return CLXDAT();
1.1 root 3106: case 0x010: return ADKCONR();
3107:
3108: case 0x012: return POT0DAT();
3109: case 0x016: return POTGOR();
3110: case 0x018: return SERDATR();
3111: case 0x01A: return DSKBYTR();
3112: case 0x01C: return INTENAR();
3113: case 0x01E: return INTREQR();
1.1.1.7 ! root 3114: case 0x07C: return DENISEID();
1.1 root 3115: default:
3116: custom_wput(addr,0);
3117: return 0xffff;
3118: }
3119: }
3120:
1.1.1.3 root 3121: uae_u32 REGPARAM2 custom_bget (uaecptr addr)
1.1 root 3122: {
3123: return custom_wget(addr & 0xfffe) >> (addr & 1 ? 0 : 8);
3124: }
3125:
1.1.1.3 root 3126: uae_u32 REGPARAM2 custom_lget (uaecptr addr)
1.1 root 3127: {
1.1.1.3 root 3128: return ((uae_u32)custom_wget(addr & 0xfffe) << 16) | custom_wget((addr+2) & 0xfffe);
1.1 root 3129: }
3130:
1.1.1.4 root 3131: void REGPARAM2 custom_wput_1 (int hpos, uaecptr addr, uae_u32 value)
1.1 root 3132: {
3133: addr &= 0x1FE;
1.1.1.3 root 3134: switch (addr) {
3135: case 0x020: DSKPTH (value); break;
3136: case 0x022: DSKPTL (value); break;
3137: case 0x024: DSKLEN (value); break;
3138: case 0x026: DSKDAT (value); break;
3139:
3140: case 0x02A: VPOSW (value); break;
3141: case 0x2E: COPCON (value); break;
3142: case 0x030: SERDAT (value); break;
3143: case 0x032: SERPER (value); break;
3144: case 0x34: POTGO (value); break;
3145: case 0x040: BLTCON0 (value); break;
3146: case 0x042: BLTCON1 (value); break;
3147:
3148: case 0x044: BLTAFWM (value); break;
3149: case 0x046: BLTALWM (value); break;
3150:
3151: case 0x050: BLTAPTH (value); break;
3152: case 0x052: BLTAPTL (value); break;
3153: case 0x04C: BLTBPTH (value); break;
3154: case 0x04E: BLTBPTL (value); break;
3155: case 0x048: BLTCPTH (value); break;
3156: case 0x04A: BLTCPTL (value); break;
3157: case 0x054: BLTDPTH (value); break;
3158: case 0x056: BLTDPTL (value); break;
3159:
3160: case 0x058: BLTSIZE (value); break;
3161:
3162: case 0x064: BLTAMOD (value); break;
3163: case 0x062: BLTBMOD (value); break;
3164: case 0x060: BLTCMOD (value); break;
3165: case 0x066: BLTDMOD (value); break;
3166:
3167: case 0x070: BLTCDAT (value); break;
3168: case 0x072: BLTBDAT (value); break;
3169: case 0x074: BLTADAT (value); break;
3170:
3171: case 0x07E: DSKSYNC (value); break;
3172:
3173: case 0x080: COP1LCH (value); break;
3174: case 0x082: COP1LCL (value); break;
3175: case 0x084: COP2LCH (value); break;
3176: case 0x086: COP2LCL (value); break;
3177:
3178: case 0x088: COPJMP1 (value); break;
3179: case 0x08A: COPJMP2 (value); break;
3180:
1.1.1.4 root 3181: case 0x08E: DIWSTRT (hpos, value); break;
3182: case 0x090: DIWSTOP (hpos, value); break;
3183: case 0x092: DDFSTRT (hpos, value); break;
3184: case 0x094: DDFSTOP (hpos, value); break;
1.1.1.3 root 3185:
3186: case 0x096: DMACON (value); break;
3187: case 0x098: CLXCON (value); break;
3188: case 0x09A: INTENA (value); break;
3189: case 0x09C: INTREQ (value); break;
3190: case 0x09E: ADKCON (value); break;
3191:
3192: case 0x0A0: AUDxLCH (0, value); break;
3193: case 0x0A2: AUDxLCL (0, value); break;
3194: case 0x0A4: AUDxLEN (0, value); break;
3195: case 0x0A6: AUDxPER (0, value); break;
3196: case 0x0A8: AUDxVOL (0, value); break;
3197: case 0x0AA: AUDxDAT (0, value); break;
3198:
3199: case 0x0B0: AUDxLCH (1, value); break;
3200: case 0x0B2: AUDxLCL (1, value); break;
3201: case 0x0B4: AUDxLEN (1, value); break;
3202: case 0x0B6: AUDxPER (1, value); break;
3203: case 0x0B8: AUDxVOL (1, value); break;
3204: case 0x0BA: AUDxDAT (1, value); break;
3205:
3206: case 0x0C0: AUDxLCH (2, value); break;
3207: case 0x0C2: AUDxLCL (2, value); break;
3208: case 0x0C4: AUDxLEN (2, value); break;
3209: case 0x0C6: AUDxPER (2, value); break;
3210: case 0x0C8: AUDxVOL (2, value); break;
3211: case 0x0CA: AUDxDAT (2, value); break;
3212:
3213: case 0x0D0: AUDxLCH (3, value); break;
3214: case 0x0D2: AUDxLCL (3, value); break;
3215: case 0x0D4: AUDxLEN (3, value); break;
3216: case 0x0D6: AUDxPER (3, value); break;
3217: case 0x0D8: AUDxVOL (3, value); break;
3218: case 0x0DA: AUDxDAT (3, value); break;
3219:
1.1.1.4 root 3220: case 0x0E0: BPLPTH (hpos, value, 0); break;
3221: case 0x0E2: BPLPTL (hpos, value, 0); break;
3222: case 0x0E4: BPLPTH (hpos, value, 1); break;
3223: case 0x0E6: BPLPTL (hpos, value, 1); break;
3224: case 0x0E8: BPLPTH (hpos, value, 2); break;
3225: case 0x0EA: BPLPTL (hpos, value, 2); break;
3226: case 0x0EC: BPLPTH (hpos, value, 3); break;
3227: case 0x0EE: BPLPTL (hpos, value, 3); break;
3228: case 0x0F0: BPLPTH (hpos, value, 4); break;
3229: case 0x0F2: BPLPTL (hpos, value, 4); break;
3230: case 0x0F4: BPLPTH (hpos, value, 5); break;
3231: case 0x0F6: BPLPTL (hpos, value, 5); break;
1.1.1.6 root 3232: case 0x0F8: BPLPTH (hpos, value, 6); break;
3233: case 0x0FA: BPLPTL (hpos, value, 6); break;
3234: case 0x0FC: BPLPTH (hpos, value, 7); break;
3235: case 0x0FE: BPLPTL (hpos, value, 7); break;
1.1.1.4 root 3236:
3237: case 0x100: BPLCON0 (hpos, value); break;
3238: case 0x102: BPLCON1 (hpos, value); break;
3239: case 0x104: BPLCON2 (hpos, value); break;
3240: case 0x106: BPLCON3 (hpos, value); break;
1.1.1.3 root 3241:
1.1.1.4 root 3242: case 0x108: BPL1MOD (hpos, value); break;
3243: case 0x10A: BPL2MOD (hpos, value); break;
1.1.1.3 root 3244:
3245: case 0x110: BPL1DAT (value); break;
3246: case 0x112: BPL2DAT (value); break;
3247: case 0x114: BPL3DAT (value); break;
3248: case 0x116: BPL4DAT (value); break;
3249: case 0x118: BPL5DAT (value); break;
3250: case 0x11A: BPL6DAT (value); break;
1.1.1.6 root 3251: case 0x11C: BPL7DAT (value); break;
3252: case 0x11E: BPL8DAT (value); break;
1.1 root 3253:
3254: case 0x180: case 0x182: case 0x184: case 0x186: case 0x188: case 0x18A:
3255: case 0x18C: case 0x18E: case 0x190: case 0x192: case 0x194: case 0x196:
3256: case 0x198: case 0x19A: case 0x19C: case 0x19E: case 0x1A0: case 0x1A2:
3257: case 0x1A4: case 0x1A6: case 0x1A8: case 0x1AA: case 0x1AC: case 0x1AE:
3258: case 0x1B0: case 0x1B2: case 0x1B4: case 0x1B6: case 0x1B8: case 0x1BA:
1.1.1.2 root 3259: case 0x1BC: case 0x1BE:
1.1.1.4 root 3260: COLOR (hpos, value & 0xFFF, (addr & 0x3E) / 2);
1.1.1.2 root 3261: break;
3262: case 0x120: case 0x124: case 0x128: case 0x12C:
1.1 root 3263: case 0x130: case 0x134: case 0x138: case 0x13C:
1.1.1.4 root 3264: SPRxPTH (hpos, value, (addr - 0x120) / 4);
1.1 root 3265: break;
1.1.1.2 root 3266: case 0x122: case 0x126: case 0x12A: case 0x12E:
1.1 root 3267: case 0x132: case 0x136: case 0x13A: case 0x13E:
1.1.1.4 root 3268: SPRxPTL (hpos, value, (addr - 0x122) / 4);
1.1 root 3269: break;
1.1.1.2 root 3270: case 0x140: case 0x148: case 0x150: case 0x158:
1.1 root 3271: case 0x160: case 0x168: case 0x170: case 0x178:
1.1.1.4 root 3272: SPRxPOS (hpos, value, (addr - 0x140) / 8);
1.1 root 3273: break;
1.1.1.2 root 3274: case 0x142: case 0x14A: case 0x152: case 0x15A:
1.1 root 3275: case 0x162: case 0x16A: case 0x172: case 0x17A:
1.1.1.4 root 3276: SPRxCTL (hpos, value, (addr - 0x142) / 8);
1.1 root 3277: break;
3278: case 0x144: case 0x14C: case 0x154: case 0x15C:
3279: case 0x164: case 0x16C: case 0x174: case 0x17C:
1.1.1.4 root 3280: SPRxDATA (hpos, value, (addr - 0x144) / 8);
1.1 root 3281: break;
1.1.1.2 root 3282: case 0x146: case 0x14E: case 0x156: case 0x15E:
1.1 root 3283: case 0x166: case 0x16E: case 0x176: case 0x17E:
1.1.1.4 root 3284: SPRxDATB (hpos, value, (addr - 0x146) / 8);
1.1 root 3285: break;
1.1.1.3 root 3286:
3287: case 0x36: JOYTEST (value); break;
1.1.1.7 ! root 3288: case 0x5A: BLTCON0L (value); break;
1.1.1.3 root 3289: case 0x5C: BLTSIZV (value); break;
3290: case 0x5E: BLTSIZH (value); break;
1.1.1.4 root 3291: case 0x1E4: DIWHIGH (hpos, value); break;
3292: case 0x10C: BPLCON4 (hpos, value); break;
1.1.1.7 ! root 3293: case 0x1FC: FMODE (value); break;
1.1 root 3294: }
3295: }
3296:
1.1.1.4 root 3297: void REGPARAM2 custom_wput (uaecptr addr, uae_u32 value)
3298: {
3299: int hpos = current_hpos ();
3300: update_copper (hpos);
3301: custom_wput_1 (hpos, addr, value);
3302: }
3303:
3304: void REGPARAM2 custom_bput (uaecptr addr, uae_u32 value)
1.1 root 3305: {
1.1.1.2 root 3306: static int warned = 0;
3307: /* Is this correct now? (There are people who bput things to the upper byte of AUDxVOL). */
1.1.1.3 root 3308: uae_u16 rval = (value << 8) | (value & 0xFF);
1.1.1.2 root 3309: custom_wput(addr, rval);
3310: if (!warned)
1.1.1.3 root 3311: write_log ("Byte put to custom register.\n"), warned++;
1.1 root 3312: }
3313:
1.1.1.3 root 3314: void REGPARAM2 custom_lput(uaecptr addr, uae_u32 value)
1.1 root 3315: {
3316: custom_wput(addr & 0xfffe, value >> 16);
1.1.1.3 root 3317: custom_wput((addr+2) & 0xfffe, (uae_u16)value);
1.1 root 3318: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.