39ac9835 |
1 | #include <stdlib.h> |
ab6ed3c4 |
2 | #include <stdarg.h> |
3 | |
4 | #define u8 unsigned char |
5 | #define u16 unsigned short |
6 | #define u32 unsigned int |
7 | |
8 | #define noinline __attribute__((noinline)) |
39ac9835 |
9 | #define _packed __attribute__((packed)) |
10 | |
11 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) |
ab6ed3c4 |
12 | |
13 | #include "edos.h" |
51f3a685 |
14 | #include "asmtools.h" |
ab6ed3c4 |
15 | |
65d9165c |
16 | extern u16 start_hvc; |
17 | |
ab6ed3c4 |
18 | #define GFX_DATA_PORT 0xC00000 |
19 | #define GFX_CTRL_PORT 0xC00004 |
20 | |
21 | #define TILE_MEM_END 0xB000 |
22 | |
23 | #define FONT_LEN 128 |
24 | #define TILE_FONT_BASE (TILE_MEM_END / 32 - FONT_LEN) |
25 | |
26 | /* note: using ED menu's layout here.. */ |
65d9165c |
27 | #define WPLANE (TILE_MEM_END + 0x0000) |
ab6ed3c4 |
28 | #define HSCRL (TILE_MEM_END + 0x0800) |
29 | #define SLIST (TILE_MEM_END + 0x0C00) |
30 | #define APLANE (TILE_MEM_END + 0x1000) |
31 | #define BPLANE (TILE_MEM_END + 0x3000) |
32 | |
df43aeea |
33 | #define read8(a) \ |
34 | *((volatile u8 *) (a)) |
35 | #define read16(a) \ |
36 | *((volatile u16 *) (a)) |
37 | #define read32(a) \ |
38 | *((volatile u32 *) (a)) |
ab6ed3c4 |
39 | #define write16(a, d) \ |
40 | *((volatile u16 *) (a)) = (d) |
41 | #define write32(a, d) \ |
42 | *((volatile u32 *) (a)) = (d) |
43 | |
44 | #define GFX_WRITE_VRAM_ADDR(adr) \ |
45 | (((0x4000 | ((adr) & 0x3FFF)) << 16) | ((adr) >> 14) | 0x00) |
46 | #define GFX_WRITE_VSRAM_ADDR(adr) \ |
47 | (((0x4000 | ((adr) & 0x3FFF)) << 16) | ((adr) >> 14) | 0x10) |
48 | |
49 | enum { |
50 | VDP_MODE1 = 0x00, |
51 | VDP_MODE2 = 0x01, |
52 | VDP_BACKDROP = 0x07, |
53 | VDP_MODE3 = 0x0b, |
54 | VDP_MODE4 = 0x0c, |
55 | VDP_AUTOINC = 0x0f, |
56 | VDP_SCROLLSZ = 0x10, |
57 | }; |
58 | |
59 | /* cell counts */ |
60 | #define LEFT_BORDER 1 /* lame TV */ |
61 | #define PLANE_W 64 |
62 | #define PLANE_H 32 |
63 | #define CSCREEN_H 28 |
64 | |
65 | static noinline void VDP_drawTextML(const char *str, u16 plane_base, |
66 | u16 x, u16 y) |
67 | { |
68 | const u8 *src = (const u8 *)str; |
69 | u16 basetile = 0; |
70 | int max_len = 40 - LEFT_BORDER; |
71 | int len; |
72 | u32 addr; |
73 | |
74 | x += LEFT_BORDER; |
75 | |
76 | for (len = 0; str[len] && len < max_len; len++) |
77 | ; |
78 | if (len > (PLANE_W - x)) |
79 | len = PLANE_W - x; |
80 | |
81 | addr = plane_base + ((x + (PLANE_W * y)) << 1); |
82 | write32(GFX_CTRL_PORT, GFX_WRITE_VRAM_ADDR(addr)); |
83 | |
84 | while (len-- > 0) { |
85 | write16(GFX_DATA_PORT, |
86 | basetile | ((*src++) - 32 + TILE_FONT_BASE)); |
87 | } |
88 | } |
89 | |
90 | static int printf_ypos; |
91 | |
92 | static void printf_line(int x, const char *buf) |
93 | { |
94 | u32 addr; |
95 | int i; |
96 | |
ab6ed3c4 |
97 | VDP_drawTextML(buf, APLANE, x, printf_ypos++ & (PLANE_H - 1)); |
98 | |
99 | if (printf_ypos >= CSCREEN_H) { |
100 | /* clear next line */ |
101 | addr = APLANE; |
102 | addr += (PLANE_W * (printf_ypos & (PLANE_H - 1))) << 1; |
103 | write32(GFX_CTRL_PORT, GFX_WRITE_VRAM_ADDR(addr)); |
104 | for (i = 0; i < 40 / 2; i++) |
105 | write32(GFX_DATA_PORT, 0); |
106 | |
107 | /* scroll plane */ |
108 | write32(GFX_CTRL_PORT, GFX_WRITE_VSRAM_ADDR(0)); |
39ac9835 |
109 | write16(GFX_DATA_PORT, (printf_ypos - CSCREEN_H + 1) * 8); |
ab6ed3c4 |
110 | } |
111 | } |
112 | |
51f3a685 |
113 | #define PRINTF_LEN 40 |
114 | |
ab6ed3c4 |
115 | static noinline int printf(const char *fmt, ...) |
116 | { |
51f3a685 |
117 | static const char hexchars[] = "0123456789abcdef"; |
ab6ed3c4 |
118 | static int printf_xpos; |
51f3a685 |
119 | char c, buf[PRINTF_LEN + 11 + 1]; |
120 | const char *s; |
ab6ed3c4 |
121 | va_list ap; |
122 | int ival; |
51f3a685 |
123 | u32 uval; |
ab6ed3c4 |
124 | int d = 0; |
51f3a685 |
125 | int i, j; |
ab6ed3c4 |
126 | |
127 | va_start(ap, fmt); |
128 | for (d = 0; *fmt; ) { |
51f3a685 |
129 | int prefix0 = 0; |
130 | int fwidth = 0; |
131 | |
132 | c = *fmt++; |
133 | if (d < PRINTF_LEN) |
134 | buf[d] = c; |
135 | |
136 | if (c != '%') { |
137 | if (c == '\n') { |
ab6ed3c4 |
138 | buf[d] = 0; |
51f3a685 |
139 | printf_line(printf_xpos, buf); |
ab6ed3c4 |
140 | d = 0; |
141 | printf_xpos = 0; |
142 | continue; |
143 | } |
144 | d++; |
145 | continue; |
146 | } |
51f3a685 |
147 | if (d >= PRINTF_LEN) |
148 | continue; |
149 | |
150 | if (*fmt == '0') { |
151 | prefix0 = 1; |
152 | fmt++; |
153 | } |
154 | |
155 | while ('1' <= *fmt && *fmt <= '9') { |
156 | fwidth = fwidth * 10 + *fmt - '0'; |
157 | fmt++; |
158 | } |
ab6ed3c4 |
159 | |
160 | switch (*fmt++) { |
161 | case '%': |
162 | d++; |
163 | break; |
164 | case 'd': |
165 | case 'i': |
166 | ival = va_arg(ap, int); |
167 | if (ival < 0) { |
168 | buf[d++] = '-'; |
169 | ival = -ival; |
170 | } |
171 | for (i = 1000000000; i >= 10; i /= 10) |
172 | if (ival >= i) |
173 | break; |
174 | for (; i >= 10; i /= 10) { |
175 | buf[d++] = '0' + ival / i; |
176 | ival %= i; |
177 | } |
178 | buf[d++] = '0' + ival; |
179 | break; |
51f3a685 |
180 | case 'x': |
181 | uval = va_arg(ap, int); |
39ac9835 |
182 | while (fwidth > 1 && uval < (1 << (fwidth - 1) * 4)) { |
51f3a685 |
183 | buf[d++] = prefix0 ? '0' : ' '; |
184 | fwidth--; |
185 | } |
186 | for (j = 1; j < 8 && uval >= (1 << j * 4); j++) |
187 | ; |
188 | for (j--; j >= 0; j--) |
189 | buf[d++] = hexchars[(uval >> j * 4) & 0x0f]; |
190 | break; |
ab6ed3c4 |
191 | case 's': |
51f3a685 |
192 | s = va_arg(ap, char *); |
193 | while (*s && d < PRINTF_LEN) |
194 | buf[d++] = *s++; |
195 | break; |
ab6ed3c4 |
196 | default: |
197 | // don't handle, for now |
198 | d++; |
ab6ed3c4 |
199 | va_arg(ap, void *); |
200 | break; |
201 | } |
202 | } |
203 | buf[d] = 0; |
204 | va_end(ap); |
205 | |
206 | if (d != 0) { |
207 | // line without \n |
208 | VDP_drawTextML(buf, APLANE, printf_xpos, |
209 | printf_ypos & (PLANE_H - 1)); |
210 | printf_xpos += d; |
211 | } |
212 | |
213 | return d; // wrong.. |
214 | } |
215 | |
39ac9835 |
216 | static const char *exc_names[] = { |
217 | NULL, |
218 | NULL, |
219 | "Bus Error", |
220 | "Address Error", |
221 | "Illegal Instruction", |
222 | "Zero Divide", |
223 | "CHK Instruction", |
224 | "TRAPV Instruction", |
225 | "Privilege Violation", /* 8 8 */ |
226 | "Trace", |
227 | "Line 1010 Emulator", |
228 | "Line 1111 Emulator", |
229 | NULL, |
230 | NULL, |
231 | NULL, |
232 | "Uninitialized Interrupt", |
233 | NULL, /* 10 16 */ |
234 | NULL, |
235 | NULL, |
236 | NULL, |
237 | NULL, |
238 | NULL, |
239 | NULL, |
240 | NULL, |
241 | "Spurious Interrupt", /* 18 24 */ |
242 | "l1 irq", |
243 | "l2 irq", |
244 | "l3 irq", |
245 | "l4 irq", |
246 | "l5 irq", |
247 | "l6 irq", |
248 | "l7 irq", |
249 | }; |
250 | |
251 | struct exc_frame { |
252 | u32 dr[8]; |
253 | u32 ar[8]; |
254 | u16 ecxnum; // from handler |
255 | union { |
256 | struct { |
257 | u16 sr; |
258 | u32 pc; |
259 | } g _packed; |
260 | struct { |
261 | u16 fc; |
262 | u32 addr; |
263 | u16 ir; |
264 | u16 sr; |
265 | u32 pc; |
266 | } bae _packed; // bus/address error frame |
267 | }; |
268 | } _packed; |
269 | |
270 | int xtttt(void) { return sizeof(struct exc_frame); } |
271 | |
272 | void exception(const struct exc_frame *f) |
ab6ed3c4 |
273 | { |
39ac9835 |
274 | int i; |
275 | |
276 | while (read16(GFX_CTRL_PORT) & 2) |
ab6ed3c4 |
277 | ; |
39ac9835 |
278 | write16(GFX_CTRL_PORT, 0x8000 | (VDP_MODE1 << 8) | 0x04); |
279 | write16(GFX_CTRL_PORT, 0x8000 | (VDP_MODE2 << 8) | 0x44); |
280 | /* adjust scroll */ |
281 | write32(GFX_CTRL_PORT, GFX_WRITE_VSRAM_ADDR(0)); |
282 | write16(GFX_DATA_PORT, |
283 | printf_ypos >= CSCREEN_H ? |
284 | (printf_ypos - CSCREEN_H + 1) * 8 : 0); |
285 | |
286 | printf("exception %i ", f->ecxnum); |
287 | if (f->ecxnum < ARRAY_SIZE(exc_names) && exc_names[f->ecxnum] != NULL) |
288 | printf("(%s)", exc_names[f->ecxnum]); |
289 | if (f->ecxnum < 4) |
290 | printf(" (%s)", (f->bae.fc & 0x10) ? "r" : "w"); |
291 | printf(" \n"); |
292 | |
293 | if (f->ecxnum < 4) { |
294 | printf(" PC: %08x SR: %04x \n", f->bae.pc, f->bae.sr); |
295 | printf("addr: %08x IR: %04x FC: %02x \n", |
296 | f->bae.addr, f->bae.ir, f->bae.fc); |
297 | } |
298 | else { |
299 | printf(" PC: %08x SR: %04x \n", f->g.pc, f->g.sr); |
300 | } |
301 | for (i = 0; i < 8; i++) |
302 | printf(" D%d: %08x A%d: %08x \n", i, f->dr[i], i, f->ar[i]); |
303 | printf(" \n"); |
ab6ed3c4 |
304 | } |
305 | |
306 | void vbl(void) |
307 | { |
308 | } |
309 | |
51f3a685 |
310 | static int usb_read_while_ready(OsRoutine *ed, |
311 | void *buf_, int maxlen) |
312 | { |
313 | u8 *buf = buf_; |
314 | int r = 0; |
315 | |
316 | while (ed->usbRdReady() && r < maxlen) |
317 | buf[r++] = ed->usbReadByte(); |
318 | |
319 | return r; |
320 | } |
321 | |
322 | /* |
323 | * TH = 1 : ?1CBRLDU 3-button pad return value (not read) |
324 | * TH = 0 : ?0SA00DU 3-button pad return value |
325 | * TH = 1 : ?1CBRLDU 3-button pad return value |
326 | * TH = 0 : ?0SA0000 D3-0 are forced to '0' |
327 | * TH = 1 : ?1CBMXYZ Extra buttons returned in D3-0 |
328 | * TH = 0 : ?0SA1111 D3-0 are forced to '1' |
329 | */ |
330 | static void test_joy_latency(int *min_out, int *max_out) |
331 | { |
332 | u8 rbuf[8 * 6]; |
333 | int min = 8; |
334 | int max = 0; |
335 | int i, v, b, e; |
336 | |
337 | for (i = 0; i < 64; i++) { |
338 | read_joy_responses(rbuf); |
339 | |
340 | for (b = 0; b < 8 * 4; b++) { |
341 | v = b & 7; |
342 | e = (b & 0x08) ? 0x0c : 0; |
343 | if ((rbuf[b] & 0x0c) == e) { |
344 | if (v < min) |
345 | min = v; |
346 | } |
347 | else if (v > max) |
348 | max = v; |
349 | } |
350 | } |
351 | |
352 | /* print out the last test */ |
353 | for (b = 0; b < 8 * 5; b++) { |
354 | printf(" %02x", rbuf[b]); |
355 | if ((b & 7) == 7) |
356 | printf("\n"); |
357 | } |
358 | printf("\n"); |
359 | |
360 | *min_out = min; |
361 | *max_out = max; |
362 | } |
363 | |
364 | static int do_test(OsRoutine *ed, u8 b3) |
365 | { |
366 | int min = 0, max = 0; |
367 | |
368 | switch (b3) |
369 | { |
370 | case 'j': |
371 | test_joy_latency(&min, &max); |
372 | printf("latency: %d - %d\n\n", min, max); |
373 | return 0; |
374 | default: |
375 | break; |
376 | } |
377 | |
378 | return -1; |
379 | } |
380 | |
df43aeea |
381 | #define MTYPE_OS 0 |
382 | #define MTYPE_MD 1 |
383 | #define MTYPE_SSF 2 |
384 | #define MTYPE_CD 3 |
385 | #define MTYPE_SMS 4 |
386 | #define MTYPE_10M 5 |
387 | #define MTYPE_32X 6 |
388 | |
65d9165c |
389 | static int do_run(OsRoutine *ed, u8 b3, int tas_sync) |
df43aeea |
390 | { |
391 | u8 mapper = 0; |
392 | |
393 | switch (b3) |
394 | { |
395 | case 's': |
396 | mapper = MTYPE_SMS | (7 << 4); |
397 | break; |
398 | case 'm': |
399 | mapper = MTYPE_MD; |
400 | break; |
401 | case 'o': |
402 | mapper = MTYPE_OS; |
403 | break; |
404 | case 'c': |
405 | mapper = MTYPE_CD; |
406 | break; |
407 | case '3': |
408 | mapper = MTYPE_32X; |
409 | break; |
410 | case 'M': |
411 | mapper = MTYPE_10M; |
412 | break; |
413 | default: |
414 | return -1; |
415 | } |
416 | |
65d9165c |
417 | printf("starting mapper %x..\n", mapper); |
418 | |
419 | while (read16(GFX_CTRL_PORT) & 2) |
df43aeea |
420 | ; |
421 | ed->VDP_setReg(VDP_MODE1, 0x04); |
422 | ed->VDP_setReg(VDP_MODE2, 0x44); |
423 | |
424 | ed->usbWriteByte('k'); |
425 | |
65d9165c |
426 | run_game(mapper, tas_sync); |
df43aeea |
427 | /* should not get here.. */ |
428 | |
429 | return -1; |
430 | } |
431 | |
ab6ed3c4 |
432 | int main() |
433 | { |
434 | OsRoutine *ed; |
51f3a685 |
435 | u8 buf[16]; |
df43aeea |
436 | int len; |
51f3a685 |
437 | int i, d, ret; |
ab6ed3c4 |
438 | |
439 | ed = (OsRoutine *) *(u32 *)0x1A0; |
440 | ed->memInitDmaCode(); |
441 | |
442 | ed->VDP_setReg(VDP_MODE1, 0x04); |
443 | ed->VDP_setReg(VDP_MODE2, 0x64); |
444 | ed->VDP_setReg(VDP_AUTOINC, 2); |
445 | ed->VDP_setReg(VDP_SCROLLSZ, 0x01); |
446 | |
447 | /* clear name tables */ |
448 | write32(GFX_CTRL_PORT, GFX_WRITE_VRAM_ADDR(APLANE)); |
449 | for (i = 0; i < PLANE_W * PLANE_H / 2; i++) |
450 | write32(GFX_DATA_PORT, 0); |
451 | |
452 | write32(GFX_CTRL_PORT, GFX_WRITE_VRAM_ADDR(BPLANE)); |
453 | for (i = 0; i < PLANE_W * PLANE_H / 2; i++) |
454 | write32(GFX_DATA_PORT, 0); |
455 | |
456 | /* note: relying on ED menu's font setup here.. */ |
457 | |
65d9165c |
458 | printf("version: %02x, start_hvc: %04x\n", |
459 | read8(0xa10001), start_hvc); |
df43aeea |
460 | printf("ED os/fw: %x/%x\n\n", ed->osGetOsVersion(), |
461 | ed->osGetFirmVersion()); |
462 | |
ab6ed3c4 |
463 | for (;;) { |
51f3a685 |
464 | if (!ed->usbRdReady()) { |
ab6ed3c4 |
465 | asm volatile("stop #0x2000"); |
51f3a685 |
466 | continue; |
467 | } |
468 | |
469 | buf[0] = ed->usbReadByte(); |
470 | if (buf[0] == ' ') |
471 | continue; |
472 | if (buf[0] != '*') { |
473 | d = 1; |
474 | goto bad_input; |
475 | } |
476 | |
477 | /* note: OS uses Twofgsr */ |
478 | buf[1] = ed->usbReadByte(); |
479 | switch (buf[1]) { |
480 | case 'T': |
481 | ed->usbWriteByte('k'); |
482 | break; |
df43aeea |
483 | case 'g': |
484 | len = ed->usbReadByte() * 128; |
485 | printf("loading %d bytes.. ", len * 512); |
486 | ed->usbWriteByte('k'); |
487 | ed->usbReadDma((void *)0x200000, len); |
488 | ed->usbWriteByte('d'); |
489 | printf("done\n"); |
490 | break; |
491 | case 'r': |
65d9165c |
492 | case 'R': |
df43aeea |
493 | buf[2] = ed->usbReadByte(); |
65d9165c |
494 | ret = do_run(ed, buf[2], buf[1] == 'R'); |
df43aeea |
495 | if (ret != 0) { |
496 | d = 3; |
497 | goto bad_input; |
498 | } |
499 | printf("run returned??\n"); |
500 | break; |
501 | |
51f3a685 |
502 | /* custom */ |
503 | case 't': |
504 | buf[2] = ed->usbReadByte(); |
505 | ret = do_test(ed, buf[2]); |
506 | if (ret != 0) { |
507 | d = 3; |
508 | goto bad_input; |
509 | } |
510 | ed->usbWriteByte('k'); |
511 | break; |
512 | default: |
513 | d = 2; |
514 | goto bad_input; |
515 | } |
516 | |
517 | continue; |
518 | |
519 | bad_input: |
520 | ret = usb_read_while_ready(ed, buf + d, sizeof(buf) - d); |
521 | buf[d + ret] = 0; |
522 | printf("bad cmd: %s\n", buf); |
523 | /* consume all remaining data */ |
524 | while (ed->usbRdReady()) |
525 | usb_read_while_ready(ed, buf, sizeof(buf)); |
ab6ed3c4 |
526 | |
51f3a685 |
527 | ed->usbWriteByte('b'); |
ab6ed3c4 |
528 | } |
529 | |
530 | return 0; |
531 | } |
532 | |
533 | // vim:ts=4:sw=4:expandtab |