5 // GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
6 // Cleanups/fixes by James L. Hammons
8 bool specialLog = false;
9 extern int effect_start;
10 extern int blit_start_log;
14 #define REG(A) (((uint32)blitter_ram[(A)] << 24) | ((uint32)blitter_ram[(A)+1] << 16) \
15 | ((uint32)blitter_ram[(A)+2] << 8) | (uint32)blitter_ram[(A)+3])
16 #define WREG(A,D) (blitter_ram[(A)] = ((D)>>24)&0xFF, blitter_ram[(A)+1] = ((D)>>16)&0xFF, \
17 blitter_ram[(A)+2] = ((D)>>8)&0xFF, blitter_ram[(A)+3] = (D)&0xFF)
19 // Blitter registers (offsets from F02200)
21 #define A1_BASE ((UINT32)0x00)
22 #define A1_FLAGS ((UINT32)0x04)
23 #define A1_CLIP ((UINT32)0x08) // Height and width values for clipping
24 #define A1_PIXEL ((UINT32)0x0C) // Integer part of the pixel (Y.i and X.i)
25 #define A1_STEP ((UINT32)0x10) // Integer part of the step
26 #define A1_FSTEP ((UINT32)0x14) // Fractionnal part of the step
27 #define A1_FPIXEL ((UINT32)0x18) // Fractionnal part of the pixel (Y.f and X.f)
28 #define A1_INC ((UINT32)0x1C) // Integer part of the increment
29 #define A1_FINC ((UINT32)0x20) // Fractional part of the increment
30 #define A2_BASE ((UINT32)0x24)
31 #define A2_FLAGS ((UINT32)0x28)
32 #define A2_MASK ((UINT32)0x2C) // Modulo values for x and y (M.y and M.x)
33 #define A2_PIXEL ((UINT32)0x30) // Integer part of the pixel (no fractional part for A2)
34 #define A2_STEP ((UINT32)0x34) // Integer part of the step (no fractional part for A2)
35 #define COMMAND ((UINT32)0x38)
36 #define PIXLINECOUNTER ((UINT32)0x3C)
37 #define SRCDATA ((UINT32)0x40)
38 #define DSTDATA ((UINT32)0x48)
39 #define DSTZ ((UINT32)0x50)
40 #define SRCZINT ((UINT32)0x58)
41 #define SRCZFRAC ((UINT32)0x60)
42 #define PATTERNDATA ((UINT32)0x68)
43 #define INTENSITYINC ((UINT32)0x70)
44 #define ZINC ((UINT32)0x74)
45 #define COLLISIONCTRL ((UINT32)0x78)
46 #define PHRASEINT0 ((UINT32)0x7C)
47 #define PHRASEINT1 ((UINT32)0x80)
48 #define PHRASEINT2 ((UINT32)0x84)
49 #define PHRASEINT3 ((UINT32)0x88)
50 #define PHRASEZ0 ((UINT32)0x8C)
51 #define PHRASEZ1 ((UINT32)0x90)
52 #define PHRASEZ2 ((UINT32)0x94)
53 #define PHRASEZ3 ((UINT32)0x98)
55 // Blitter command bits
57 #define SRCEN (cmd & 0x00000001)
58 #define SRCENZ (cmd & 0x00000002)
59 #define SRCENX (cmd & 0x00000004)
60 #define DSTEN (cmd & 0x00000008)
61 #define DSTENZ (cmd & 0x00000010)
62 #define DSTWRZ (cmd & 0x00000020)
63 #define CLIPA1 (cmd & 0x00000040)
65 #define UPDA1F (cmd & 0x00000100)
66 #define UPDA1 (cmd & 0x00000200)
67 #define UPDA2 (cmd & 0x00000400)
69 #define DSTA2 (cmd & 0x00000800)
71 #define Z_OP_INF (cmd & 0x00040000)
72 #define Z_OP_EQU (cmd & 0x00080000)
73 #define Z_OP_SUP (cmd & 0x00100000)
75 #define LFU_NAN (cmd & 0x00200000)
76 #define LFU_NA (cmd & 0x00400000)
77 #define LFU_AN (cmd & 0x00800000)
78 #define LFU_A (cmd & 0x01000000)
80 #define CMPDST (cmd & 0x02000000)
81 #define BCOMPEN (cmd & 0x04000000)
82 #define DCOMPEN (cmd & 0x08000000)
84 #define PATDSEL (cmd & 0x00010000)
85 #define ADDDSEL (cmd & 0x00020000)
86 #define TOPBEN (cmd & 0x00004000)
87 #define TOPNEN (cmd & 0x00008000)
88 #define BKGWREN (cmd & 0x10000000)
89 #define GOURD (cmd & 0x00001000)
90 #define GOURZ (cmd & 0x00002000)
91 #define SRCSHADE (cmd & 0x40000000)
99 #define XSIGNSUB_A1 (REG(A1_FLAGS)&0x080000)
100 #define XSIGNSUB_A2 (REG(A2_FLAGS)&0x080000)
102 #define YSIGNSUB_A1 (REG(A1_FLAGS)&0x100000)
103 #define YSIGNSUB_A2 (REG(A2_FLAGS)&0x100000)
105 #define YADD1_A1 (REG(A1_FLAGS)&0x040000)
106 #define YADD1_A2 (REG(A2_FLAGS)&0x040000)
108 //Put 'em back, once we fix the problem!!! [KO]
110 #define PIXEL_SHIFT_1(a) (((~a##_x) >> 16) & 7)
111 #define PIXEL_OFFSET_1(a) (((((UINT32)a##_y >> 16) * a##_width / 8) + (((UINT32)a##_x >> 19) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 19) & 7))
112 #define READ_PIXEL_1(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a), BLITTER) >> PIXEL_SHIFT_1(a)) & 0x01)
113 //#define READ_PIXEL_1(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a)) >> PIXEL_SHIFT_1(a)) & 0x01)
116 #define PIXEL_SHIFT_2(a) (((~a##_x) >> 15) & 6)
117 #define PIXEL_OFFSET_2(a) (((((UINT32)a##_y >> 16) * a##_width / 4) + (((UINT32)a##_x >> 18) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 18) & 7))
118 #define READ_PIXEL_2(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a), BLITTER) >> PIXEL_SHIFT_2(a)) & 0x03)
119 //#define READ_PIXEL_2(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a)) >> PIXEL_SHIFT_2(a)) & 0x03)
122 #define PIXEL_SHIFT_4(a) (((~a##_x) >> 14) & 4)
123 #define PIXEL_OFFSET_4(a) (((((UINT32)a##_y >> 16) * (a##_width/2)) + (((UINT32)a##_x >> 17) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 17) & 7))
124 #define READ_PIXEL_4(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a), BLITTER) >> PIXEL_SHIFT_4(a)) & 0x0f)
125 //#define READ_PIXEL_4(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a)) >> PIXEL_SHIFT_4(a)) & 0x0f)
128 #define PIXEL_OFFSET_8(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 7))
129 #define READ_PIXEL_8(a) (JaguarReadByte(a##_addr+PIXEL_OFFSET_8(a), BLITTER))
130 //#define READ_PIXEL_8(a) (JaguarReadByte(a##_addr+PIXEL_OFFSET_8(a)))
133 #define PIXEL_OFFSET_16(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~3)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 3))
134 #define READ_PIXEL_16(a) (JaguarReadWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), BLITTER))
135 //#define READ_PIXEL_16(a) (JaguarReadWord(a##_addr+(PIXEL_OFFSET_16(a)<<1)))
138 #define PIXEL_OFFSET_32(a) (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
139 #define READ_PIXEL_32(a) (JaguarReadLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), BLITTER))
140 //#define READ_PIXEL_32(a) (JaguarReadLong(a##_addr+(PIXEL_OFFSET_32(a)<<2)))
143 #define READ_PIXEL(a,f) (\
144 (((f>>3)&0x07) == 0) ? (READ_PIXEL_1(a)) : \
145 (((f>>3)&0x07) == 1) ? (READ_PIXEL_2(a)) : \
146 (((f>>3)&0x07) == 2) ? (READ_PIXEL_4(a)) : \
147 (((f>>3)&0x07) == 3) ? (READ_PIXEL_8(a)) : \
148 (((f>>3)&0x07) == 4) ? (READ_PIXEL_16(a)) : \
149 (((f>>3)&0x07) == 5) ? (READ_PIXEL_32(a)) : 0)
151 // 16 bpp z data read
152 #define ZDATA_OFFSET_16(a) (PIXEL_OFFSET_16(a) + a##_zoffs * 4)
153 #define READ_ZDATA_16(a) (JaguarReadWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), BLITTER))
154 //#define READ_ZDATA_16(a) (JaguarReadWord(a##_addr+(ZDATA_OFFSET_16(a)<<1)))
157 #define READ_ZDATA(a,f) (READ_ZDATA_16(a))
159 // 16 bpp z data write
160 #define WRITE_ZDATA_16(a,d) { JaguarWriteWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), d, BLITTER); }
161 //#define WRITE_ZDATA_16(a,d) { JaguarWriteWord(a##_addr+(ZDATA_OFFSET_16(a)<<1), d); }
164 #define WRITE_ZDATA(a,f,d) WRITE_ZDATA_16(a,d);
167 #define READ_RDATA_1(r,a,p) ((p) ? ((REG(r+(((UINT32)a##_x >> 19) & 0x04))) >> (((UINT32)a##_x >> 16) & 0x1F)) & 0x0001 : (REG(r) & 0x0001))
170 #define READ_RDATA_2(r,a,p) ((p) ? ((REG(r+(((UINT32)a##_x >> 18) & 0x04))) >> (((UINT32)a##_x >> 15) & 0x3E)) & 0x0003 : (REG(r) & 0x0003))
173 #define READ_RDATA_4(r,a,p) ((p) ? ((REG(r+(((UINT32)a##_x >> 17) & 0x04))) >> (((UINT32)a##_x >> 14) & 0x28)) & 0x000F : (REG(r) & 0x000F))
176 #define READ_RDATA_8(r,a,p) ((p) ? ((REG(r+(((UINT32)a##_x >> 16) & 0x04))) >> (((UINT32)a##_x >> 13) & 0x18)) & 0x00FF : (REG(r) & 0x00FF))
178 // 16 bpp r data read
179 #define READ_RDATA_16(r,a,p) ((p) ? ((REG(r+(((UINT32)a##_x >> 15) & 0x04))) >> (((UINT32)a##_x >> 12) & 0x10)) & 0xFFFF : (REG(r) & 0xFFFF))
181 // 32 bpp r data read
182 #define READ_RDATA_32(r,a,p) ((p) ? REG(r+(((UINT32)a##_x >> 14) & 0x04)) : REG(r))
184 // register data read
185 #define READ_RDATA(r,a,f,p) (\
186 (((f>>3)&0x07) == 0) ? (READ_RDATA_1(r,a,p)) : \
187 (((f>>3)&0x07) == 1) ? (READ_RDATA_2(r,a,p)) : \
188 (((f>>3)&0x07) == 2) ? (READ_RDATA_4(r,a,p)) : \
189 (((f>>3)&0x07) == 3) ? (READ_RDATA_8(r,a,p)) : \
190 (((f>>3)&0x07) == 4) ? (READ_RDATA_16(r,a,p)) : \
191 (((f>>3)&0x07) == 5) ? (READ_RDATA_32(r,a,p)) : 0)
194 #define WRITE_PIXEL_1(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_1(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a), BLITTER)&(~(0x01 << PIXEL_SHIFT_1(a))))|(d<<PIXEL_SHIFT_1(a)), BLITTER); }
195 //#define WRITE_PIXEL_1(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_1(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a))&(~(0x01 << PIXEL_SHIFT_1(a))))|(d<<PIXEL_SHIFT_1(a))); }
198 #define WRITE_PIXEL_2(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_2(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a), BLITTER)&(~(0x03 << PIXEL_SHIFT_2(a))))|(d<<PIXEL_SHIFT_2(a)), BLITTER); }
199 //#define WRITE_PIXEL_2(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_2(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_2(a))&(~(0x03 << PIXEL_SHIFT_2(a))))|(d<<PIXEL_SHIFT_2(a))); }
202 #define WRITE_PIXEL_4(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_4(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a), BLITTER)&(~(0x0f << PIXEL_SHIFT_4(a))))|(d<<PIXEL_SHIFT_4(a)), BLITTER); }
203 //#define WRITE_PIXEL_4(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_4(a), (JaguarReadByte(a##_addr+PIXEL_OFFSET_4(a))&(~(0x0f << PIXEL_SHIFT_4(a))))|(d<<PIXEL_SHIFT_4(a))); }
206 #define WRITE_PIXEL_8(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_8(a), d, BLITTER); }
207 //#define WRITE_PIXEL_8(a,d) { JaguarWriteByte(a##_addr+PIXEL_OFFSET_8(a), d); }
209 // 16 bpp pixel write
210 //#define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1),d); }
211 #define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), d, BLITTER); if (specialLog) WriteLog("Pixel write address: %08X\n", a##_addr+(PIXEL_OFFSET_16(a)<<1)); }
212 //#define WRITE_PIXEL_16(a,d) { JaguarWriteWord(a##_addr+(PIXEL_OFFSET_16(a)<<1), d); if (specialLog) WriteLog("Pixel write address: %08X\n", a##_addr+(PIXEL_OFFSET_16(a)<<1)); }
214 // 32 bpp pixel write
215 #define WRITE_PIXEL_32(a,d) { JaguarWriteLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), d, BLITTER); }
216 //#define WRITE_PIXEL_32(a,d) { JaguarWriteLong(a##_addr+(PIXEL_OFFSET_32(a)<<2), d); }
219 #define WRITE_PIXEL(a,f,d) {\
220 switch ((f>>3)&0x07) { \
221 case 0: WRITE_PIXEL_1(a,d); break; \
222 case 1: WRITE_PIXEL_2(a,d); break; \
223 case 2: WRITE_PIXEL_4(a,d); break; \
224 case 3: WRITE_PIXEL_8(a,d); break; \
225 case 4: WRITE_PIXEL_16(a,d); break; \
226 case 5: WRITE_PIXEL_32(a,d); break; \
229 // External global variables
231 extern int jaguar_active_memory_dumps;
233 // Local global variables
235 int start_logging = 0;
236 uint8 blitter_working = 0;
238 // Blitter register RAM (most of it is hidden from the user)
240 static uint8 blitter_ram[0x100];
242 // Width in Pixels of a Scanline
243 // This is a pretranslation of the value found in the A1 & A2 flags: It's really a floating point value
244 // of the form EEEEMM where MM is the mantissa with an implied "1." in front of it and the EEEE value is
245 // the exponent. Valid values for the exponent range from 0 to 11 (decimal). It's easiest to think of it
246 // as a floating point bit pattern being followed by a number of zeroes. So, e.g., 001101 translates to
247 // 1.01 (the "1." being implied) x (2 ^ 3) or 1010 -> 10 in base 10 (i.e., 1.01 with the decimal place
248 // being shifted to the right 3 places).
249 /*static uint32 blitter_scanline_width[48] =
251 0, 0, 0, 0, // Note: This would really translate to 1, 1, 1, 1
261 1024, 1280, 1536, 1792,
262 2048, 2560, 3072, 3584
265 //static uint8 * tom_ram_8;
266 //static uint8 * paletteRam;
276 static uint32 a1_addr;
277 static uint32 a2_addr;
278 static int32 a1_zoffs;
279 static int32 a2_zoffs;
280 static uint32 xadd_a1_control;
281 static uint32 xadd_a2_control;
282 static int32 a1_pitch;
283 static int32 a2_pitch;
284 static uint32 n_pixels;
285 static uint32 n_lines;
288 static int32 a1_width;
291 static int32 a2_width;
292 static int32 a2_mask_x;
293 static int32 a2_mask_y;
294 static int32 a1_xadd;
295 static int32 a1_yadd;
296 static int32 a2_xadd;
297 static int32 a2_yadd;
298 static uint8 a1_phrase_mode;
299 static uint8 a2_phrase_mode;
300 static int32 a1_step_x = 0;
301 static int32 a1_step_y = 0;
302 static int32 a2_step_x = 0;
303 static int32 a2_step_y = 0;
304 static uint32 outer_loop;
305 static uint32 inner_loop;
306 static uint32 a2_psize;
307 static uint32 a1_psize;
308 static uint32 gouraud_add;
309 //static uint32 gouraud_data;
310 //static uint16 gint[4];
311 //static uint16 gfrac[4];
312 //static uint8 gcolour[4];
315 static int gd_ia, gd_ca;
316 static int colour_index = 0;
318 static uint32 z_i[4];
320 static int32 a1_clip_x, a1_clip_y;
322 // In the spirit of "get it right first, *then* optimize" I've taken the liberty
323 // of removing all the unnecessary code caching. If it turns out to be a good way
324 // to optimize the blitter, then we may revisit it in the future...
327 // Generic blit handler
329 void blitter_generic(uint32 cmd)
332 Blit! (0018FA70 <- 008DDC40) count: 2 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
333 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
334 A1 step values: -2 (X), 1 (Y)
335 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
336 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
337 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
338 A1 x/y: 100/12, A2 x/y: 106/0 Pattern: 000000F300000000
341 // specialLog = true;
342 /*if (cmd == 0x1401060C && blit_start_log)
343 specialLog = true;//*/
345 //uint32 logGo = ((cmd == 0x01800E01 && REG(A1_BASE) == 0x898000) ? 1 : 0);
346 uint32 srcdata, srczdata, dstdata, dstzdata, writedata, inhibit;
350 WriteLog("About to do n x m blit (BM width is ? pixels)...\n");
351 WriteLog("A1_STEP_X/Y = %08X/%08X, A2_STEP_X/Y = %08X/%08X\n", a1_step_x, a1_step_y, a2_step_x, a2_step_y);
357 WriteLog(" A1_X/Y = %08X/%08X, A2_X/Y = %08X/%08X\n", a1_x, a1_y, a2_x, a2_y);
359 uint32 a1_start = a1_x, a2_start = a2_x, bitPos = 0;
360 //Kludge for Hover Strike...
361 //I wonder if this kludge is in conjunction with the SRCENX down below...
362 if (BCOMPEN && SRCENX)
365 bitPos = 8 - n_pixels;
368 inner_loop = n_pixels;
373 WriteLog(" A1_X/Y = %08X/%08X, A2_X/Y = %08X/%08X\n", a1_x, a1_y, a2_x, a2_y);
375 srcdata = srczdata = dstdata = dstzdata = writedata = inhibit = 0;
378 srcdata = 0xFFFFFFFF;
380 if (!DSTA2) // Data movement: A1 <- A2
382 // load src data and Z
384 if (SRCEN || SRCENX) // Not sure if this is correct...
386 srcdata = READ_PIXEL(a2, REG(A2_FLAGS));
388 srczdata = READ_ZDATA(a2, REG(A2_FLAGS));
389 else if (cmd & 0x0001C020) // PATDSEL | TOPBEN | TOPNEN | DSTWRZ
390 srczdata = READ_RDATA(SRCZINT, a2, REG(A2_FLAGS), a2_phrase_mode);
392 else // Use SRCDATA register...
394 srcdata = READ_RDATA(SRCDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
395 if (cmd & 0x0001C020) // PATDSEL | TOPBEN | TOPNEN | DSTWRZ
396 srczdata = READ_RDATA(SRCZINT, a2, REG(A2_FLAGS), a2_phrase_mode);
399 // load dst data and Z
402 dstdata = READ_PIXEL(a1, REG(A1_FLAGS));
404 dstzdata = READ_ZDATA(a1, REG(A1_FLAGS));
406 dstzdata = READ_RDATA(DSTZ, a1, REG(A1_FLAGS), a1_phrase_mode);
410 dstdata = READ_RDATA(DSTDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
412 dstzdata = READ_RDATA(DSTZ, a1, REG(A1_FLAGS), a1_phrase_mode);
415 /*This wasn't working... // a1 clipping
416 if (cmd & 0x00000040)
418 if (a1_x < 0 || a1_y < 0 || (a1_x >> 16) >= (REG(A1_CLIP) & 0x7FFF)
419 || (a1_y >> 16) >= ((REG(A1_CLIP) >> 16) & 0x7FFF))
424 srczdata = z_i[colour_index] >> 16;
426 // apply z comparator
427 if (Z_OP_INF) if (srczdata < dstzdata) inhibit = 1;
428 if (Z_OP_EQU) if (srczdata == dstzdata) inhibit = 1;
429 if (Z_OP_SUP) if (srczdata > dstzdata) inhibit = 1;
431 // apply data comparator
432 // Note: DCOMPEN only works in 8/16 bpp modes! !!! FIX !!!
433 // Does BCOMPEN only work in 1 bpp mode???
434 // No, but it always does a 1 bit expansion no matter what the BPP of the channel is set to. !!! FIX !!!
435 // This is bit tricky... We need to fix the XADD value so that it acts like a 1BPP value while inside
437 if (DCOMPEN | BCOMPEN)
439 //Temp, for testing Hover Strike
440 //Doesn't seem to do it... Why?
441 //What needs to happen here is twofold. First, the address generator in the outer loop has
442 //to honor the BPP when calculating the start address (which it kinda does already). Second,
443 //it has to step bit by bit when using BCOMPEN. How to do this???
445 // srcdata = READ_RDATA_1(SRCDATA, a2, a2_phrase_mode);
446 // srcdata = READ_PIXEL_1(a2);
447 // srcdata = READ_PIXEL(a2, REG(A2_FLAGS));
449 #define PIXEL_SHIFT_1(a) (((~a##_x) >> 16) & 0x07)
450 #define PIXEL_OFFSET_1(a) (((((UINT32)a##_y >> 16) * a##_width / 8) + (((UINT32)a##_x >> 19) & ~7)) * (1 + a##_pitch) + (((UINT32)a##_x >> 19) & 7))
451 #define READ_PIXEL_1(a) ((JaguarReadByte(a##_addr+PIXEL_OFFSET_1(a), BLITTER) >> PIXEL_SHIFT_1(a)) & 0x01)
453 #define PIXEL_SHIFT_1(a)
454 (((~a2_x) >> 16) & 0x07)
455 #define PIXEL_OFFSET_1(a)
456 (((((UINT32)a2_y >> 16) * a2_width / 8) + (((UINT32)a2_x >> 19) & ~7)) * (1 + a2_pitch) + (((UINT32)a2_x >> 19) & 7))
457 #define READ_PIXEL_1(a)
458 ((JaguarReadByte(a2_addr+PIXEL_OFFSET_1(a2), BLITTER) >> PIXEL_SHIFT_1(a2)) & 0x01)
460 //small problem with this approach: it's not accurate... We need a proper address to begin with
461 //and *then* we can do the bit stepping from there the way it's *supposed* to be done... !!! FIX !!!
463 // uint32 pixShift = ((~(a2_x * 8)) >> 16) & 0x07;
464 // uint32 pixShift = (~(a2_x >> 13)) & 0x07;
465 uint32 pixShift = (~bitPos) & 0x07; // 8BPP only...!
466 // uint32 pixOffset = (((((UINT32)a2_y >> 16) * a2_width / 8) + (((UINT32)(a2_x * 8) >> 19) & ~0x07)) * (1 + a2_pitch) + (((UINT32)(a2_x * 8) >> 19) & 0x07));
467 // uint32 pixOffset = (((((UINT32)a2_y >> 16) * a2_width) + (((UINT32)(a2_x * 8) >> 19) & ~0x07)) * (1 + a2_pitch) + (((UINT32)(a2_x * 8) >> 19) & 0x07));
468 // uint32 pixOffset = (((((UINT32)a2_y >> 16) * a2_width) + (((UINT32)a2_x >> 16) & ~0x07)) * (1 + a2_pitch)) + (((UINT32)a2_x >> 16) & 0x07);
469 // srcdata = (JaguarReadByte(a2_addr+pixOffset, BLITTER) >> pixShift) & 0x01;
470 srcdata = (srcdata >> pixShift) & 0x01;
475 Interesting (Hover Strike--large letter):
477 Blit! (0018FA70 <- 008DDC40) count: 2 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
478 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
479 A1 step values: -2 (X), 1 (Y)
480 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
481 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
482 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
483 A1 x/y: 100/12, A2 x/y: 106/0 Pattern: 000000F300000000
485 Blit! (0018FA70 <- 008DDC40) count: 8 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
486 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
487 A1 step values: -8 (X), 1 (Y)
488 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
489 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
490 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
491 A1 x/y: 102/12, A2 x/y: 107/0 Pattern: 000000F300000000
493 Blit! (0018FA70 <- 008DDC40) count: 1 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
494 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
495 A1 step values: -1 (X), 1 (Y)
496 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
497 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
498 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
499 A1 x/y: 118/12, A2 x/y: 70/0 Pattern: 000000F300000000
501 Blit! (0018FA70 <- 008DDC40) count: 8 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
502 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
503 A1 step values: -8 (X), 1 (Y)
504 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
505 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
506 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
507 A1 x/y: 119/12, A2 x/y: 71/0 Pattern: 000000F300000000
509 Blit! (0018FA70 <- 008DDC40) count: 1 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
510 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
511 A1 step values: -1 (X), 1 (Y)
512 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
513 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
514 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
515 A1 x/y: 127/12, A2 x/y: 66/0 Pattern: 000000F300000000
517 Blit! (0018FA70 <- 008DDC40) count: 8 x 13, A1/2_FLAGS: 00014218/00013C18 [cmd: 1401060C]
518 CMD -> src: SRCENX dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl: BCOMPEN BKGWREN
519 A1 step values: -8 (X), 1 (Y)
520 A2 step values: -1 (X), 1 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
521 A1 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
522 A2 -> pitch: 1 phrases, depth: 8bpp, z-off: 0, width: 192 (1E), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
523 A1 x/y: 128/12, A2 x/y: 67/0 Pattern: 000000F300000000
529 //WriteLog("Blitter: BCOMPEN set on command %08X inhibit prev:%u, now:", cmd, inhibit);
530 // compare source pixel with pattern pixel
532 Blit! (000B8250 <- 0012C3A0) count: 16 x 1, A1/2_FLAGS: 00014420/00012000 [cmd: 05810001]
533 CMD -> src: SRCEN dst: misc: a1ctl: mode: ity: PATDSEL z-op: op: LFU_REPLACE ctrl: BCOMPEN
534 A1 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 384 (22), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
535 A2 -> pitch: 1 phrases, depth: 1bpp, z-off: 0, width: 16 (10), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
539 // AvP is still wrong, could be cuz it's doing A1 -> A2...
541 // Src is the 1bpp bitmap... DST is the PATTERN!!!
542 // This seems to solve at least ONE of the problems with MC3D...
543 // Why should this be inverted???
544 // Bcuz it is. This is supposed to be used only for a bit -> pixel expansion...
545 /* if (srcdata == READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
546 // if (srcdata != READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
548 /* uint32 A2bpp = 1 << ((REG(A2_FLAGS) >> 3) & 0x07);
549 if (A2bpp == 1 || A2bpp == 16 || A2bpp == 8)
550 inhibit = (srcdata == 0 ? 1: 0);
551 // inhibit = !srcdata;
553 WriteLog("Blitter: Bad BPP (%u) selected for BCOMPEN mode!\n", A2bpp);//*/
554 // What it boils down to is this:
561 // compare destination pixel with pattern pixel
562 if (dstdata == READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
563 // if (dstdata != READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
567 // This is DEFINITELY WRONG
568 // if (a1_phrase_mode || a2_phrase_mode)
569 // inhibit = !inhibit;
574 inhibit |= (((a1_x >> 16) < a1_clip_x && (a1_x >> 16) >= 0
575 && (a1_y >> 16) < a1_clip_y && (a1_y >> 16) >= 0) ? 0 : 1);
578 // compute the write data and store
581 // Houston, we have a problem...
582 // Look here, at PATDSEL and GOURD. If both are active (as they are on the BIOS intro), then there's
584 //Blit! (00100000 <- 000095D0) count: 3 x 1, A1/2_FLAGS: 00014220/00004020 [cmd: 00011008]
585 // CMD -> src: dst: DSTEN misc: a1ctl: mode: GOURD ity: PATDSEL z-op: op: LFU_CLEAR ctrl:
586 // A1 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 320 (21), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
587 // A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 256 (20), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
588 // A1 x/y: 90/171, A2 x/y: 808/0 Pattern: 776D770077007700
592 // use pattern data for write data
593 writedata = READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
597 /*if (blit_start_log)
598 WriteLog("BLIT: ADDDSEL srcdata: %08X\, dstdata: %08X, ", srcdata, dstdata);//*/
600 // intensity addition
601 //Ok, this is wrong... Or is it? Yes, it's wrong! !!! FIX !!!
602 /* writedata = (srcdata & 0xFF) + (dstdata & 0xFF);
603 if (!(TOPBEN) && writedata > 0xFF)
606 writedata |= (srcdata & 0xF00) + (dstdata & 0xF00);
607 if (!(TOPNEN) && writedata > 0xFFF)
608 // writedata = 0xFFF;
610 writedata |= (srcdata & 0xF000) + (dstdata & 0xF000);//*/
611 //notneeded--writedata &= 0xFFFF;
612 /*if (blit_start_log)
613 WriteLog("writedata: %08X\n", writedata);//*/
615 Hover Strike ADDDSEL blit:
617 Blit! (00098D90 <- 0081DDC0) count: 320 x 287, A1/2_FLAGS: 00004220/00004020 [cmd: 00020208]
618 CMD -> src: dst: DSTEN misc: a1ctl: UPDA1 mode: ity: ADDDSEL z-op: op: LFU_CLEAR ctrl:
619 A1 step values: -320 (X), 1 (Y)
620 A1 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
621 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 256 (20), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
622 A1 x/y: 0/0, A2 x/y: 3288/0 Pattern: 0000000000000000 SRCDATA: 00FD00FD00FD00FD
624 writedata = (srcdata & 0xFF) + (dstdata & 0xFF);
628 //This is correct now, but slow...
629 int16 s = (srcdata & 0xFF) | (srcdata & 0x80 ? 0xFF00 : 0x0000),
638 writedata = (uint32)sum;
641 //This doesn't seem right... Looks like it would muck up the low byte... !!! FIX !!!
642 writedata |= (srcdata & 0xF00) + (dstdata & 0xF00);
644 if (!TOPNEN && writedata > 0xFFF)
649 writedata |= (srcdata & 0xF000) + (dstdata & 0xF000);
653 if (LFU_NAN) writedata |= ~srcdata & ~dstdata;
654 if (LFU_NA) writedata |= ~srcdata & dstdata;
655 if (LFU_AN) writedata |= srcdata & ~dstdata;
656 if (LFU_A) writedata |= srcdata & dstdata;
659 //Although, this looks like it's OK... (even if it is shitty!)
660 //According to JTRM, this is part of the four things the blitter does with the write data (the other
661 //three being PATDSEL, ADDDSEL, and LFU (default). I'm not sure which gets precedence, this or PATDSEL
662 //(see above blit example)...
664 writedata = ((gd_c[colour_index]) << 8) | (gd_i[colour_index] >> 16);
668 int intensity = srcdata & 0xFF;
669 int ia = gd_ia >> 16;
671 ia = 0xFFFFFF00 | ia;
675 if (intensity > 0xFF)
677 writedata = (srcdata & 0xFF00) | intensity;
686 //Tried 2nd below for Hover Strike: No dice.
687 if (/*a1_phrase_mode || */BKGWREN || !inhibit)
688 // if (/*a1_phrase_mode || BKGWREN ||*/ !inhibit)
690 /*if (((REG(A1_FLAGS) >> 3) & 0x07) == 5)
692 uint32 offset = a1_addr+(PIXEL_OFFSET_32(a1)<<2);
693 // (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
694 if ((offset >= 0x1FF020 && offset <= 0x1FF03F) || (offset >= 0x1FF820 && offset <= 0x1FF83F))
695 WriteLog("32bpp pixel write: A1 Phrase mode --> ");
697 // write to the destination
698 WRITE_PIXEL(a1, REG(A1_FLAGS), writedata);
700 WRITE_ZDATA(a1, REG(A1_FLAGS), srczdata);
705 // load src data and Z
708 srcdata = READ_PIXEL(a1, REG(A1_FLAGS));
710 srczdata = READ_ZDATA(a1, REG(A1_FLAGS));
711 else if (cmd & 0x0001C020) // PATDSEL | TOPBEN | TOPNEN | DSTWRZ
712 srczdata = READ_RDATA(SRCZINT, a1, REG(A1_FLAGS), a1_phrase_mode);
716 srcdata = READ_RDATA(SRCDATA, a1, REG(A1_FLAGS), a1_phrase_mode);
717 if (cmd & 0x001C020) // PATDSEL | TOPBEN | TOPNEN | DSTWRZ
718 srczdata = READ_RDATA(SRCZINT, a1, REG(A1_FLAGS), a1_phrase_mode);
721 // load dst data and Z
724 dstdata = READ_PIXEL(a2, REG(A2_FLAGS));
726 dstzdata = READ_ZDATA(a2, REG(A2_FLAGS));
728 dstzdata = READ_RDATA(DSTZ, a2, REG(A2_FLAGS), a2_phrase_mode);
732 dstdata = READ_RDATA(DSTDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
734 dstzdata = READ_RDATA(DSTZ, a2, REG(A2_FLAGS), a2_phrase_mode);
738 srczdata = z_i[colour_index] >> 16;
740 // apply z comparator
741 if (Z_OP_INF) if (srczdata < dstzdata) inhibit = 1;
742 if (Z_OP_EQU) if (srczdata == dstzdata) inhibit = 1;
743 if (Z_OP_SUP) if (srczdata > dstzdata) inhibit = 1;
745 // apply data comparator
746 //NOTE: The bit comparator (BCOMPEN) is NOT the same at the data comparator!
747 if (DCOMPEN | BCOMPEN)
751 // compare source pixel with pattern pixel
752 // AvP: Numbers are correct, but sprites are not!
753 //This doesn't seem to be a problem... But could still be wrong...
754 /* if (srcdata == READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
755 // if (srcdata != READ_RDATA(PATTERNDATA, a1, REG(A1_FLAGS), a1_phrase_mode))
757 // This is probably not 100% correct... It works in the 1bpp case
758 // (in A1 <- A2 mode, that is...)
759 // AvP: This is causing blocks to be written instead of bit patterns...
761 // NOTE: We really should separate out the BCOMPEN & DCOMPEN stuff!
762 /* uint32 A1bpp = 1 << ((REG(A1_FLAGS) >> 3) & 0x07);
763 if (A1bpp == 1 || A1bpp == 16 || A1bpp == 8)
764 inhibit = (srcdata == 0 ? 1: 0);
766 WriteLog("Blitter: Bad BPP (%u) selected for BCOMPEN mode!\n", A1bpp);//*/
767 // What it boils down to is this:
773 // compare destination pixel with pattern pixel
774 if (dstdata == READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
775 // if (dstdata != READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode))
779 // This is DEFINITELY WRONG
780 // if (a1_phrase_mode || a2_phrase_mode)
781 // inhibit = !inhibit;
786 inhibit |= (((a1_x >> 16) < a1_clip_x && (a1_x >> 16) >= 0
787 && (a1_y >> 16) < a1_clip_y && (a1_y >> 16) >= 0) ? 0 : 1);
790 // compute the write data and store
795 // use pattern data for write data
796 writedata= READ_RDATA(PATTERNDATA, a2, REG(A2_FLAGS), a2_phrase_mode);
800 // intensity addition
801 writedata = (srcdata & 0xFF) + (dstdata & 0xFF);
802 if (!(TOPBEN) && writedata > 0xFF)
804 writedata |= (srcdata & 0xF00) + (dstdata & 0xF00);
805 if (!(TOPNEN) && writedata > 0xFFF)
807 writedata |= (srcdata & 0xF000) + (dstdata & 0xF000);
812 writedata |= ~srcdata & ~dstdata;
814 writedata |= ~srcdata & dstdata;
816 writedata |= srcdata & ~dstdata;
818 writedata |= srcdata & dstdata;
822 writedata = ((gd_c[colour_index]) << 8) | (gd_i[colour_index] >> 16);
826 int intensity = srcdata & 0xFF;
827 int ia = gd_ia >> 16;
829 ia = 0xFFFFFF00 | ia;
833 if (intensity > 0xFF)
835 writedata = (srcdata & 0xFF00) | intensity;
844 if (/*a2_phrase_mode || */BKGWREN || !inhibit)
848 uint32 offset = a2_addr+(PIXEL_OFFSET_16(a2)<<1);
849 // (((((UINT32)a##_y >> 16) * a##_width) + (((UINT32)a##_x >> 16) & ~1)) * (1 + a##_pitch) + (((UINT32)a##_x >> 16) & 1))
850 WriteLog("[%08X:%04X] ", offset, writedata);
852 // write to the destination
853 WRITE_PIXEL(a2, REG(A2_FLAGS), writedata);
856 WRITE_ZDATA(a2, REG(A2_FLAGS), srczdata);
860 // update x and y (inner loop)
861 //kludge to test shiatsu...
863 //Now it does! But crappy, crappy, crappy! !!! FIX !!!
866 a1_x += a1_xadd, a1_y += a1_yadd;
867 a2_x = (a2_x + a2_xadd) & a2_mask_x, a2_y = (a2_y + a2_yadd) & a2_mask_y;
871 a1_x += a1_xadd, a1_y += a1_yadd;
872 a2_x = (a2_x + (a2_xadd / 8)) & a2_mask_x, a2_y = (a2_y + a2_yadd) & a2_mask_y;
876 z_i[colour_index] += zadd;
878 if (GOURD || SRCSHADE)
880 gd_i[colour_index] += gd_ia;
881 //Hmm, this doesn't seem to do anything...
882 //But it is correct according to the JTRM...!
883 if ((int32)gd_i[colour_index] < 0)
884 gd_i[colour_index] = 0;
885 if (gd_i[colour_index] > 0x00FFFFFF)
886 gd_i[colour_index] = 0x00FFFFFF;//*/
888 gd_c[colour_index] += gd_ca;
889 if ((int32)gd_c[colour_index] < 0)
890 gd_c[colour_index] = 0;
891 if (gd_c[colour_index] > 0x000000FF)
892 gd_c[colour_index] = 0x000000FF;//*/
895 if (GOURD || SRCSHADE || GOURZ)
898 //This screws things up WORSE (for the BIOS opening screen)
899 // if (a1_phrase_mode || a2_phrase_mode)
900 colour_index = (colour_index + 1) & 0x03;
904 //more kludge to test shiatsu...
906 //Now it does! But crappy, crappy, crappy! !!! FIX !!!
910 a2_x = (a2_x & 0xFFFF0000) + 0x00010000;
912 /*if (BCOMPEN && !DSTA2)//kludge for Hover Strike... !!! FIX !!!
914 a2_x -= n_pixels << 16;
915 a2_x += ((n_pixels << 16) / 8) & 0XFFFF0000;
916 a2_x += (n_pixels % 8 == 0 ? 0 : 1 << 16);
919 //New: Phrase mode taken into account! :-p
922 // Bump the pointer to the next phrase boundary
923 // Even though it works, this is crappy... Clean it up!
924 uint32 size = 64 / a1_psize;
926 // Crappy kludge... ('aligning' source to destination)
927 if (a2_phrase_mode && DSTA2)
929 uint32 extra = (a2_start >> 16) % size;
933 uint32 newx = (a1_x >> 16) / size;
934 uint32 newxrem = (a1_x >> 16) % size;
936 a1_x |= (((newx + (newxrem == 0 ? 0 : 1)) * size) & 0xFFFF) << 16;
941 // Bump the pointer to the next phrase boundary
942 // Even though it works, this is crappy... Clean it up!
943 uint32 size = 64 / a2_psize;
945 // Crappy kludge... ('aligning' source to destination)
946 // Prolly should do this for A1 channel as well... [DONE]
947 if (a1_phrase_mode && !DSTA2)
949 uint32 extra = (a1_start >> 16) % size;
953 uint32 newx = (a2_x >> 16) / size;
954 uint32 newxrem = (a2_x >> 16) % size;
956 a2_x |= (((newx + (newxrem == 0 ? 0 : 1) /*+ extra*/) * size) & 0xFFFF) << 16;
959 //Not entirely: This still mucks things up... !!! FIX !!!
960 //Should this go before or after the phrase mode mucking around?
964 a2_y += a2_step_y;//*/
967 // write values back to registers
968 WREG(A1_PIXEL, (a1_y & 0xFFFF0000) | ((a1_x >> 16) & 0xFFFF));
969 WREG(A1_FPIXEL, (a1_y << 16) | (a1_x & 0xFFFF));
970 WREG(A2_PIXEL, (a2_y & 0xFFFF0000) | ((a2_x >> 16) & 0xFFFF));
974 void blitter_blit(uint32 cmd)
976 uint32 pitchValue[4] = { 0, 1, 3, 2 };
979 dst = (cmd >> 3) & 0x07;
980 misc = (cmd >> 6) & 0x03;
981 a1ctl = (cmd >> 8) & 0x7;
982 mode = (cmd >> 11) & 0x07;
983 ity = (cmd >> 14) & 0x0F;
984 zop = (cmd >> 18) & 0x07;
985 op = (cmd >> 21) & 0x0F;
986 ctrl = (cmd >> 25) & 0x3F;
988 // Addresses in A1/2_BASE are *phrase* aligned, i.e., bottom three bits are ignored!
989 // NOTE: This fixes Rayman's bad collision detection AND keeps T2K working!
990 a1_addr = REG(A1_BASE) & 0xFFFFFFF8;
991 a2_addr = REG(A2_BASE) & 0xFFFFFFF8;
993 a1_zoffs = (REG(A1_FLAGS) >> 6) & 7;
994 a2_zoffs = (REG(A2_FLAGS) >> 6) & 7;
996 xadd_a1_control = (REG(A1_FLAGS) >> 16) & 0x03;
997 xadd_a2_control = (REG(A2_FLAGS) >> 16) & 0x03;
998 // a1_pitch = (REG(A1_FLAGS) & 3) ^ ((REG(A1_FLAGS) & 2) >> 1);
999 // a2_pitch = (REG(A2_FLAGS) & 3) ^ ((REG(A2_FLAGS) & 2) >> 1);
1000 a1_pitch = pitchValue[(REG(A1_FLAGS) & 0x03)];
1001 a2_pitch = pitchValue[(REG(A2_FLAGS) & 0x03)];
1003 n_pixels = REG(PIXLINECOUNTER) & 0xFFFF;
1004 n_lines = (REG(PIXLINECOUNTER) >> 16) & 0xFFFF;
1006 a1_x = (REG(A1_PIXEL) << 16) | (REG(A1_FPIXEL) & 0xFFFF);
1007 a1_y = (REG(A1_PIXEL) & 0xFFFF0000) | (REG(A1_FPIXEL) >> 16);
1008 //According to the JTRM, X is restricted to 15 bits and Y is restricted to 12.
1009 //But it seems to fuck up T2K! !!! FIX !!!
1010 //Could it be sign extended??? Doesn't seem to be so according to JTRM
1011 // a1_x &= 0x7FFFFFFF, a1_y &= 0x0FFFFFFF;
1012 //Actually, it says that the X is 16 bits. But it still seems to mess with the Y when restricted to 12...
1013 // a1_y &= 0x0FFFFFFF;
1015 // a1_width = blitter_scanline_width[((REG(A1_FLAGS) & 0x00007E00) >> 9)];
1016 // According to JTRM, this must give a *whole number* of phrases in the current
1017 // pixel size (this means the lookup above is WRONG)... !!! FIX !!!
1018 UINT32 m = (REG(A1_FLAGS) >> 9) & 0x03, e = (REG(A1_FLAGS) >> 11) & 0x0F;
1019 a1_width = ((0x04 | m) << e) >> 2;//*/
1021 a2_x = (REG(A2_PIXEL) & 0x0000FFFF) << 16;
1022 a2_y = (REG(A2_PIXEL) & 0xFFFF0000);
1023 //According to the JTRM, X is restricted to 15 bits and Y is restricted to 12.
1024 //But it seems to fuck up T2K! !!! FIX !!!
1025 // a2_x &= 0x7FFFFFFF, a2_y &= 0x0FFFFFFF;
1026 //Actually, it says that the X is 16 bits. But it still seems to mess with the Y when restricted to 12...
1027 // a2_y &= 0x0FFFFFFF;
1029 // a2_width = blitter_scanline_width[((REG(A2_FLAGS) & 0x00007E00) >> 9)];
1030 // According to JTRM, this must give a *whole number* of phrases in the current
1031 // pixel size (this means the lookup above is WRONG)... !!! FIX !!!
1032 m = (REG(A2_FLAGS) >> 9) & 0x03, e = (REG(A2_FLAGS) >> 11) & 0x0F;
1033 a2_width = ((0x04 | m) << e) >> 2;//*/
1034 a2_mask_x = ((REG(A2_MASK) & 0x0000FFFF) << 16) | 0xFFFF;
1035 a2_mask_y = (REG(A2_MASK) & 0xFFFF0000) | 0xFFFF;
1037 // Check for "use mask" flag
1038 if (!(REG(A2_FLAGS) & 0x8000))
1040 a2_mask_x = 0xFFFFFFFF; // must be 16.16
1041 a2_mask_y = 0xFFFFFFFF; // must be 16.16
1046 // According to the official documentation, a hardware bug ties A2's yadd bit to A1's...
1047 a2_yadd = a1_yadd = (YADD1_A1 ? 1 << 16 : 0);
1052 // determine a1_xadd
1053 switch (xadd_a1_control)
1056 // This is a documented Jaguar bug relating to phrase mode and truncation... Look into it!
1057 // add phrase offset to X and truncate
1062 // add pixelsize (1) to X
1066 // add zero (for those nice vertical lines)
1070 // add the contents of the increment register
1071 a1_xadd = (REG(A1_INC) << 16) | (REG(A1_FINC) & 0x0000FFFF);
1072 a1_yadd = (REG(A1_INC) & 0xFFFF0000) | (REG(A1_FINC) >> 16);
1077 //Blit! (0011D000 -> 000B9600) count: 228 x 1, A1/2_FLAGS: 00073820/00064220 [cmd: 41802801]
1078 // A1 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 128 (1C), addctl: XADDINC YADD1 XSIGNADD YSIGNADD
1079 // A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 320 (21), addctl: XADD0 YADD1 XSIGNADD YSIGNADD
1080 //if (YADD1_A1 && YADD1_A2 && xadd_a2_control == XADD0 && xadd_a1_control == XADDINC)// &&
1081 // UINT32 a1f = REG(A1_FLAGS), a2f = REG(A2_FLAGS);
1082 //Ok, so this ISN'T it... Prolly the XADDPHR code above that's doing it...
1083 //if (REG(A1_FLAGS) == 0x00073820 && REG(A2_FLAGS) == 0x00064220 && cmd == 0x41802801)
1084 // A1 x/y: 14368/7, A2 x/y: 150/36
1085 //This is it... The problem...
1086 //if ((a1_x >> 16) == 14368) // 14368 = $3820
1087 // return; //Lesse what we got...
1097 // determine a2_xadd
1098 switch (xadd_a2_control)
1101 // add phrase offset to X and truncate
1106 // add pixelsize (1) to X
1110 // add zero (for those nice vertical lines)
1113 //This really isn't a valid bit combo for A2... Shouldn't this cause the blitter to just say no?
1115 WriteLog("BLIT: Asked to use invalid bit combo (XADDINC) for A2...\n");
1116 // add the contents of the increment register
1117 // since there is no register for a2 we just add 1
1118 //Let's do nothing, since it's not listed as a valid bit combo...
1119 // a2_xadd = 1 << 16;
1126 // Modify outer loop steps based on blitter command
1134 a1_step_x = (REG(A1_FSTEP) & 0xFFFF),
1135 a1_step_y = (REG(A1_FSTEP) >> 16);
1138 a1_step_x |= ((REG(A1_STEP) & 0x0000FFFF) << 16),
1139 a1_step_y |= ((REG(A1_STEP) & 0xFFFF0000));
1142 a2_step_x = (REG(A2_STEP) & 0x0000FFFF) << 16,
1143 a2_step_y = (REG(A2_STEP) & 0xFFFF0000);
1145 outer_loop = n_lines;
1150 a1_clip_x = REG(A1_CLIP) & 0x7FFF,
1151 a1_clip_y = (REG(A1_CLIP) >> 16) & 0x7FFF;
1153 // This phrase sizing is incorrect as well... !!! FIX !!! [NOTHING TO FIX]
1154 // Err, this is pixel size... (and it's OK)
1155 a2_psize = 1 << ((REG(A2_FLAGS) >> 3) & 0x07);
1156 a1_psize = 1 << ((REG(A1_FLAGS) >> 3) & 0x07);
1163 for(int v=0; v<4; v++)
1164 z_i[v] = REG(PHRASEZ0 + v*4);
1168 if (GOURD || GOURZ || SRCSHADE)
1170 gd_c[0] = blitter_ram[PATTERNDATA + 0];
1171 gd_i[0] = ((uint32)blitter_ram[PATTERNDATA + 1] << 16)
1172 | ((uint32)blitter_ram[SRCDATA + 0] << 8) | blitter_ram[SRCDATA + 1];
1174 gd_c[1] = blitter_ram[PATTERNDATA + 2];
1175 gd_i[1] = ((uint32)blitter_ram[PATTERNDATA + 3] << 16)
1176 | ((uint32)blitter_ram[SRCDATA + 2] << 8) | blitter_ram[SRCDATA + 3];
1178 gd_c[2] = blitter_ram[PATTERNDATA + 4];
1179 gd_i[2] = ((uint32)blitter_ram[PATTERNDATA + 5] << 16)
1180 | ((uint32)blitter_ram[SRCDATA + 4] << 8) | blitter_ram[SRCDATA + 5];
1182 gd_c[3] = blitter_ram[PATTERNDATA + 6];
1183 gd_i[3] = ((uint32)blitter_ram[PATTERNDATA + 7] << 16)
1184 | ((uint32)blitter_ram[SRCDATA + 6] << 8) | blitter_ram[SRCDATA + 7];
1186 gouraud_add = REG(INTENSITYINC);
1188 gd_ia = gouraud_add & 0x00FFFFFF;
1189 if (gd_ia & 0x00800000)
1190 gd_ia = 0xFF000000 | gd_ia;
1192 gd_ca = (gouraud_add >> 24) & 0xFF;
1193 if (gd_ca & 0x00000080)
1194 gd_ca = 0xFFFFFF00 | gd_ca;
1197 // Bit comparitor fixing...
1200 // Determine the data flow direction...
1202 a2_step_x /= (1 << ((REG(A2_FLAGS) >> 3) & 0x07));
1206 /* if (BCOMPEN)//Kludge for Hover Strike... !!! FIX !!!
1208 // Determine the data flow direction...
1216 WriteLog("Blit!\n");
1217 WriteLog(" cmd = 0x%.8x\n",cmd);
1218 WriteLog(" a1_base = %08X\n", a1_addr);
1219 WriteLog(" a1_pitch = %d\n", a1_pitch);
1220 WriteLog(" a1_psize = %d\n", a1_psize);
1221 WriteLog(" a1_width = %d\n", a1_width);
1222 WriteLog(" a1_xadd = %f (phrase=%d)\n", (float)a1_xadd / 65536.0, a1_phrase_mode);
1223 WriteLog(" a1_yadd = %f\n", (float)a1_yadd / 65536.0);
1224 WriteLog(" a1_xstep = %f\n", (float)a1_step_x / 65536.0);
1225 WriteLog(" a1_ystep = %f\n", (float)a1_step_y / 65536.0);
1226 WriteLog(" a1_x = %f\n", (float)a1_x / 65536.0);
1227 WriteLog(" a1_y = %f\n", (float)a1_y / 65536.0);
1228 WriteLog(" a1_zoffs = %i\n",a1_zoffs);
1230 WriteLog(" a2_base = %08X\n", a2_addr);
1231 WriteLog(" a2_pitch = %d\n", a2_pitch);
1232 WriteLog(" a2_psize = %d\n", a2_psize);
1233 WriteLog(" a2_width = %d\n", a2_width);
1234 WriteLog(" a2_xadd = %f (phrase=%d)\n", (float)a2_xadd / 65536.0, a2_phrase_mode);
1235 WriteLog(" a2_yadd = %f\n", (float)a2_yadd / 65536.0);
1236 WriteLog(" a2_xstep = %f\n", (float)a2_step_x / 65536.0);
1237 WriteLog(" a2_ystep = %f\n", (float)a2_step_y / 65536.0);
1238 WriteLog(" a2_x = %f\n", (float)a2_x / 65536.0);
1239 WriteLog(" a2_y = %f\n", (float)a2_y / 65536.0);
1240 WriteLog(" a2_mask_x= 0x%.4x\n",a2_mask_x);
1241 WriteLog(" a2_mask_y= 0x%.4x\n",a2_mask_y);
1242 WriteLog(" a2_zoffs = %i\n",a2_zoffs);
1244 WriteLog(" count = %d x %d\n", n_pixels, n_lines);
1246 WriteLog(" command = %08X\n", cmd);
1247 WriteLog(" dsten = %i\n",DSTEN);
1248 WriteLog(" srcen = %i\n",SRCEN);
1249 WriteLog(" patdsel = %i\n",PATDSEL);
1250 WriteLog(" color = 0x%.8x\n",REG(PATTERNDATA));
1251 WriteLog(" dcompen = %i\n",DCOMPEN);
1252 WriteLog(" bcompen = %i\n",BCOMPEN);
1253 WriteLog(" cmpdst = %i\n",CMPDST);
1254 WriteLog(" GOURZ = %i\n",GOURZ);
1255 WriteLog(" GOURD = %i\n",GOURD);
1256 WriteLog(" SRCSHADE= %i\n",SRCSHADE);
1260 //NOTE: Pitch is ignored!
1262 //This *might* be the altimeter blits (they are)...
1263 //On captured screen, x-pos for black (inner) is 259, for pink is 257
1264 //Black is short by 3, pink is short by 1...
1266 Blit! (00110000 <- 000BF010) count: 9 x 31, A1/2_FLAGS: 000042E2/00010020 [cmd: 00010200]
1267 CMD -> src: dst: misc: a1ctl: UPDA1 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl:
1268 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1269 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
1270 A1 x/y: 262/124, A2 x/y: 128/0
1271 Blit! (00110000 <- 000BF010) count: 5 x 38, A1/2_FLAGS: 000042E2/00010020 [cmd: 00010200]
1272 CMD -> src: dst: misc: a1ctl: UPDA1 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl:
1273 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1274 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
1275 A1 x/y: 264/117, A2 x/y: 407/0
1277 Blit! (00110000 <- 000BF010) count: 9 x 23, A1/2_FLAGS: 000042E2/00010020 [cmd: 00010200]
1278 CMD -> src: dst: misc: a1ctl: UPDA1 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl:
1279 A1 step values: -10 (X), 1 (Y)
1280 A1 -> pitch: 4(2) phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1281 A2 -> pitch: 1(0) phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
1282 A1 x/y: 262/132, A2 x/y: 129/0
1283 Blit! (00110000 <- 000BF010) count: 5 x 27, A1/2_FLAGS: 000042E2/00010020 [cmd: 00010200]
1284 CMD -> src: dst: misc: a1ctl: UPDA1 mode: ity: PATDSEL z-op: op: LFU_CLEAR ctrl:
1285 A1 step values: -8 (X), 1 (Y)
1286 A1 -> pitch: 4(2) phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1287 A2 -> pitch: 1(0) phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPIX YADD0 XSIGNADD YSIGNADD
1288 A1 x/y: 264/128, A2 x/y: 336/0
1290 264v vCursor ends up here...
1294 262v vCursor ends up here...
1298 Fixed! Now for more:
1300 ; This looks like the ship icon in the upper left corner...
1302 Blit! (00110000 <- 0010B2A8) count: 11 x 12, A1/2_FLAGS: 000042E2/00000020 [cmd: 09800609]
1303 CMD -> src: SRCEN dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: z-op: op: LFU_REPLACE ctrl: DCOMPEN
1304 A1 step values: -12 (X), 1 (Y)
1305 A2 step values: 0 (X), 0 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
1306 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1307 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1308 A1 x/y: 20/24, A2 x/y: 5780/0
1312 More (not sure this is a blitter problem as much as it's a GPU problem):
1313 All but the "M" are trashed...
1314 This does *NOT* look like a blitter problem, as it's rendering properly...
1315 Actually, if you look at the A1 step values, there IS a discrepancy!
1319 Blit! (00110000 <- 0010B2A8) count: 12 x 12, A1/2_FLAGS: 000042E2/00000020 [cmd: 09800609]
1320 CMD -> src: SRCEN dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: z-op: op: LFU_REPLACE ctrl: DCOMPEN
1321 A1 step values: -14 (X), 1 (Y)
1322 A2 step values: -4 (X), 0 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
1323 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1324 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1325 A1 x/y: 134/144, A2 x/y: 2516/0
1330 Blit! (00110000 <- 0010B2A8) count: 12 x 12, A1/2_FLAGS: 000042E2/00000020 [cmd: 09800609]
1331 CMD -> src: SRCEN dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: z-op: op: LFU_REPLACE ctrl: DCOMPEN
1332 A1 step values: -13 (X), 1 (Y)
1333 A2 step values: -4 (X), 0 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
1334 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1335 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1336 A1 x/y: 147/144, A2 x/y: 2660/0
1340 Blit! (00110000 <- 0010B2A8) count: 12 x 12, A1/2_FLAGS: 000042E2/00000020 [cmd: 09800609]
1341 CMD -> src: SRCEN dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: z-op: op: LFU_REPLACE ctrl: DCOMPEN
1342 A1 step values: -12 (X), 1 (Y)
1343 A2 step values: 0 (X), 0 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
1344 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1345 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1346 A1 x/y: 160/144, A2 x/y: 3764/0
1350 Blit! (00110000 <- 0010B2A8) count: 12 x 12, A1/2_FLAGS: 000042E2/00000020 [cmd: 09800609]
1351 CMD -> src: SRCEN dst: DSTEN misc: a1ctl: UPDA1 UPDA2 mode: ity: z-op: op: LFU_REPLACE ctrl: DCOMPEN
1352 A1 step values: -15 (X), 1 (Y)
1353 A2 step values: -4 (X), 0 (Y) [mask (unused): 00000000 - FFFFFFFF/FFFFFFFF]
1354 A1 -> pitch: 4 phrases, depth: 16bpp, z-off: 3, width: 320 (21), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1355 A2 -> pitch: 1 phrases, depth: 16bpp, z-off: 0, width: 1 (00), addctl: XADDPHR YADD0 XSIGNADD YSIGNADD
1356 A1 x/y: 173/144, A2 x/y: 4052/0
1359 //extern int op_start_log;
1362 char * ctrlStr[4] = { "XADDPHR\0", "XADDPIX\0", "XADD0\0", "XADDINC\0" };
1363 char * bppStr[8] = { "1bpp\0", "2bpp\0", "4bpp\0", "8bpp\0", "16bpp\0", "32bpp\0", "???\0", "!!!\0" };
1364 char * opStr[16] = { "LFU_CLEAR", "LFU_NSAND", "LFU_NSAD", "LFU_NOTS", "LFU_SAND", "LFU_NOTD", "LFU_N_SXORD", "LFU_NSORND",
1365 "LFU_SAD", "LFU_XOR", "LFU_D", "LFU_NSORD", "LFU_REPLACE", "LFU_SORND", "LFU_SORD", "LFU_ONE" };
1366 uint32 /*src = cmd & 0x07, dst = (cmd >> 3) & 0x07, misc = (cmd >> 6) & 0x03,
1367 a1ctl = (cmd >> 8) & 0x07,*/ mode = (cmd >> 11) & 0x07/*, ity = (cmd >> 14) & 0x0F,
1368 zop = (cmd >> 18) & 0x07, op = (cmd >> 21) & 0x0F, ctrl = (cmd >> 25) & 0x3F*/;
1369 UINT32 a1f = REG(A1_FLAGS), a2f = REG(A2_FLAGS);
1370 uint32 p1 = a1f & 0x07, p2 = a2f & 0x07,
1371 d1 = (a1f >> 3) & 0x07, d2 = (a2f >> 3) & 0x07,
1372 zo1 = (a1f >> 6) & 0x07, zo2 = (a2f >> 6) & 0x07,
1373 w1 = (a1f >> 9) & 0x3F, w2 = (a2f >> 9) & 0x3F,
1374 ac1 = (a1f >> 16) & 0x1F, ac2 = (a2f >> 16) & 0x1F;
1375 UINT32 iw1 = ((0x04 | (w1 & 0x03)) << ((w1 & 0x3C) >> 2)) >> 2;
1376 UINT32 iw2 = ((0x04 | (w2 & 0x03)) << ((w2 & 0x3C) >> 2)) >> 2;
1377 WriteLog("Blit! (%08X %s %08X) count: %d x %d, A1/2_FLAGS: %08X/%08X [cmd: %08X]\n", a1_addr, (mode&0x01 ? "->" : "<-"), a2_addr, n_pixels, n_lines, a1f, a2f, cmd);
1378 // WriteLog(" CMD -> src: %d, dst: %d, misc: %d, a1ctl: %d, mode: %d, ity: %1X, z-op: %d, op: %1X, ctrl: %02X\n", src, dst, misc, a1ctl, mode, ity, zop, op, ctrl);
1380 WriteLog(" CMD -> src: %s%s%s ", (cmd & 0x0001 ? "SRCEN " : ""), (cmd & 0x0002 ? "SRCENZ " : ""), (cmd & 0x0004 ? "SRCENX" : ""));
1381 WriteLog("dst: %s%s%s ", (cmd & 0x0008 ? "DSTEN " : ""), (cmd & 0x0010 ? "DSTENZ " : ""), (cmd & 0x0020 ? "DSTWRZ" : ""));
1382 WriteLog("misc: %s%s ", (cmd & 0x0040 ? "CLIP_A1 " : ""), (cmd & 0x0080 ? "???" : ""));
1383 WriteLog("a1ctl: %s%s%s ", (cmd & 0x0100 ? "UPDA1F " : ""), (cmd & 0x0200 ? "UPDA1 " : ""), (cmd & 0x0400 ? "UPDA2" : ""));
1384 WriteLog("mode: %s%s%s ", (cmd & 0x0800 ? "DSTA2 " : ""), (cmd & 0x1000 ? "GOURD " : ""), (cmd & 0x2000 ? "ZBUFF" : ""));
1385 WriteLog("ity: %s%s%s%s ", (cmd & 0x4000 ? "TOPBEN " : ""), (cmd & 0x8000 ? "TOPNEN " : ""), (cmd & 0x00010000 ? "PATDSEL" : ""), (cmd & 0x00020000 ? "ADDDSEL" : ""));
1386 WriteLog("z-op: %s%s%s ", (cmd & 0x00040000 ? "ZMODELT " : ""), (cmd & 0x00080000 ? "ZMODEEQ " : ""), (cmd & 0x00100000 ? "ZMODEGT" : ""));
1387 WriteLog("op: %s ", opStr[(cmd >> 21) & 0x0F]);
1388 WriteLog("ctrl: %s%s%s%s%s%s\n", (cmd & 0x02000000 ? "CMPDST " : ""), (cmd & 0x04000000 ? "BCOMPEN " : ""), (cmd & 0x08000000 ? "DCOMPEN " : ""), (cmd & 0x10000000 ? "BKGWREN " : ""), (cmd & 0x20000000 ? "BUSHI " : ""), (cmd & 0x40000000 ? "SRCSHADE" : ""));
1391 WriteLog(" A1 step values: %d (X), %d (Y)\n", a1_step_x >> 16, a1_step_y >> 16);
1394 WriteLog(" A2 step values: %d (X), %d (Y) [mask (%sused): %08X - %08X/%08X]\n", a2_step_x >> 16, a2_step_y >> 16, (a2f & 0x8000 ? "" : "un"), REG(A2_MASK), a2_mask_x, a2_mask_y);
1396 WriteLog(" A1 -> pitch: %d phrases, depth: %s, z-off: %d, width: %d (%02X), addctl: %s %s %s %s\n", 1 << p1, bppStr[d1], zo1, iw1, w1, ctrlStr[ac1&0x03], (ac1&0x04 ? "YADD1" : "YADD0"), (ac1&0x08 ? "XSIGNSUB" : "XSIGNADD"), (ac1&0x10 ? "YSIGNSUB" : "YSIGNADD"));
1397 WriteLog(" A2 -> pitch: %d phrases, depth: %s, z-off: %d, width: %d (%02X), addctl: %s %s %s %s\n", 1 << p2, bppStr[d2], zo2, iw2, w2, ctrlStr[ac2&0x03], (ac2&0x04 ? "YADD1" : "YADD0"), (ac2&0x08 ? "XSIGNSUB" : "XSIGNADD"), (ac2&0x10 ? "YSIGNSUB" : "YSIGNADD"));
1398 WriteLog(" A1 x/y: %d/%d, A2 x/y: %d/%d Pattern: %08X%08X SRCDATA: %08X%08X\n", a1_x >> 16, a1_y >> 16, a2_x >> 16, a2_y >> 16, REG(PATTERNDATA), REG(PATTERNDATA + 4), REG(SRCDATA), REG(SRCDATA + 4));
1399 // blit_start_log = 0;
1400 // op_start_log = 1;
1403 blitter_working = 1;
1404 //#ifndef USE_GENERIC_BLITTER
1405 // if (!blitter_execute_cached_code(blitter_in_cache(cmd)))
1407 blitter_generic(cmd);
1409 /*if (blit_start_log)
1411 if (a1_addr == 0xF03000 && a2_addr == 0x004D58)
1413 WriteLog("\nBytes at 004D58:\n");
1414 for(int i=0x004D58; i<0x004D58+(10*127*4); i++)
1415 WriteLog("%02X ", JaguarReadByte(i));
1416 WriteLog("\nBytes at F03000:\n");
1417 for(int i=0xF03000; i<0xF03000+(6*127*4); i++)
1418 WriteLog("%02X ", JaguarReadByte(i));
1423 blitter_working = 0;
1426 void blitter_init(void)
1431 void blitter_reset(void)
1433 memset(blitter_ram, 0x00, 0xA0);
1436 void blitter_done(void)
1438 WriteLog("BLIT: Done.\n");
1441 uint8 BlitterReadByte(uint32 offset, uint32 who/*=UNKNOWN*/)
1446 //This isn't cycle accurate--how to fix? !!! FIX !!!
1447 if (offset == (0x38 + 3))
1448 return 0x01; // always idle
1450 //Attempted fix for AvP:
1451 if (offset >= 0x04 && offset <= 0x07)
1452 // return (offset > 0x05 ? blitter_ram[PIXLINECOUNTER + offset - 0x04] : 0x00);
1453 // return 0x00; // WO register! What does it expect to see here???
1454 //This is it. I wonder if it just ignores the lower three bits?
1455 return blitter_ram[A1_PIXEL + offset - 0x04];
1457 return blitter_ram[offset];
1461 uint16 BlitterReadWord(uint32 offset, uint32 who/*=UNKNOWN*/)
1463 return ((uint16)BlitterReadByte(offset, who) << 8) | (uint16)BlitterReadByte(offset+1, who);
1467 uint32 BlitterReadLong(uint32 offset, uint32 who/*=UNKNOWN*/)
1469 return (BlitterReadWord(offset, who) << 16) | BlitterReadWord(offset+2, who);
1472 void BlitterWriteByte(uint32 offset, uint8 data, uint32 who/*=UNKNOWN*/)
1474 /*if (offset & 0xFF == 0x7B)
1475 WriteLog("--> Wrote to B_STOP: value -> %02X\n", data);*/
1478 // if ((offset >= 0x7C) && (offset <= 0x9B))
1479 // This handles writes to INTENSITY0-3 by also writing them to their proper places in
1480 // PATTERNDATA & SOURCEDATA (should do the same for the Z registers! !!! FIX !!! [DONE])
1481 if ((offset >= 0x7C) && (offset <= 0x9B))//8B))
1485 // INTENSITY registers 0-3
1487 case 0x7D: blitter_ram[PATTERNDATA + 1] = data; break;
1488 case 0x7E: blitter_ram[SRCDATA + 0] = data; break;
1489 case 0x7F: blitter_ram[SRCDATA + 1] = data; break;
1492 case 0x81: blitter_ram[PATTERNDATA + 3] = data; break;
1493 case 0x82: blitter_ram[SRCDATA + 2] = data; break;
1494 case 0x83: blitter_ram[SRCDATA + 3] = data; break;
1497 case 0x85: blitter_ram[PATTERNDATA + 5] = data; break;
1498 case 0x86: blitter_ram[SRCDATA + 4] = data; break;
1499 case 0x87: blitter_ram[SRCDATA + 5] = data; break;
1502 case 0x89: blitter_ram[PATTERNDATA + 7] = data; break;
1503 case 0x8A: blitter_ram[SRCDATA + 6] = data; break;
1504 case 0x8B: blitter_ram[SRCDATA + 7] = data; break;
1507 case 0x8C: blitter_ram[SRCZINT + 0] = data; break;
1508 case 0x8D: blitter_ram[SRCZINT + 1] = data; break;
1509 case 0x8E: blitter_ram[SRCZFRAC + 0] = data; break;
1510 case 0x8F: blitter_ram[SRCZFRAC + 1] = data; break;
1512 case 0x90: blitter_ram[SRCZINT + 2] = data; break;
1513 case 0x91: blitter_ram[SRCZINT + 3] = data; break;
1514 case 0x92: blitter_ram[SRCZFRAC + 2] = data; break;
1515 case 0x93: blitter_ram[SRCZFRAC + 3] = data; break;
1517 case 0x94: blitter_ram[SRCZINT + 4] = data; break;
1518 case 0x95: blitter_ram[SRCZINT + 5] = data; break;
1519 case 0x96: blitter_ram[SRCZFRAC + 4] = data; break;
1520 case 0x97: blitter_ram[SRCZFRAC + 5] = data; break;
1522 case 0x98: blitter_ram[SRCZINT + 6] = data; break;
1523 case 0x99: blitter_ram[SRCZINT + 7] = data; break;
1524 case 0x9A: blitter_ram[SRCZFRAC + 6] = data; break;
1525 case 0x9B: blitter_ram[SRCZFRAC + 7] = data; break;
1529 blitter_ram[offset] = data;
1532 void BlitterWriteWord(uint32 offset, uint16 data, uint32 who/*=UNKNOWN*/)
1535 /* if (offset & 0xFF == A1_PIXEL && data == 14368)
1537 WriteLog("\n1\nA1_PIXEL written by %s (%u)...\n\n\n", whoName[who], data);
1538 extern bool doGPUDis;
1541 if ((offset & 0xFF) == (A1_PIXEL + 2) && data == 14368)
1543 WriteLog("\n2\nA1_PIXEL written by %s (%u)...\n\n\n", whoName[who], data);
1544 extern bool doGPUDis;
1549 BlitterWriteByte(offset+0, (data>>8) & 0xFF, who);
1550 BlitterWriteByte(offset+1, data & 0xFF, who);
1552 if ((offset & 0xFF) == 0x3A)
1553 // I.e., the second write of 32-bit value--not convinced this is the best way to do this!
1554 // But then again, according to the Jaguar docs, this is correct...!
1556 /*extern int blit_start_log;
1557 extern bool doGPUDis;
1560 WriteLog("BLIT: Blitter started by %s...\n", whoName[who]);
1563 blitter_blit(GET32(blitter_ram, 0x38));
1568 void BlitterWriteLong(uint32 offset, uint32 data, uint32 who/*=UNKNOWN*/)
1571 /* if ((offset & 0xFF) == A1_PIXEL && (data & 0xFFFF) == 14368)
1573 WriteLog("\n3\nA1_PIXEL written by %s (%u)...\n\n\n", whoName[who], data);
1574 extern bool doGPUDis;
1579 BlitterWriteWord(offset, data >> 16, who);
1580 BlitterWriteWord(offset+2, data & 0xFFFF, who);