| 1 |
/* |
| 2 |
* mon_cmd.cpp - cxmon standard commands |
| 3 |
* |
| 4 |
* cxmon (C) 1997-2004 Christian Bauer, Marc Hellwig |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include "sysdeps.h" |
| 22 |
|
| 23 |
#include <stdlib.h> |
| 24 |
|
| 25 |
#include "mon.h" |
| 26 |
#include "mon_cmd.h" |
| 27 |
#include "mon_disass.h" |
| 28 |
|
| 29 |
#ifndef VERSION |
| 30 |
#define VERSION "3" |
| 31 |
#endif |
| 32 |
|
| 33 |
|
| 34 |
/* |
| 35 |
* range_args = [expression] [[COMMA] expression] END |
| 36 |
* |
| 37 |
* Read start address to "adr", end address to "end_adr". |
| 38 |
* "adr" defaults to '.', "end_adr" defaults to '.'+def_range |
| 39 |
* |
| 40 |
* true: OK, false: Error |
| 41 |
*/ |
| 42 |
|
| 43 |
static bool range_args(uintptr *adr, uintptr *end_adr, uint32 def_range) |
| 44 |
{ |
| 45 |
*adr = mon_dot_address; |
| 46 |
*end_adr = mon_dot_address + def_range; |
| 47 |
|
| 48 |
if (mon_token == T_END) |
| 49 |
return true; |
| 50 |
else { |
| 51 |
if (!mon_expression(adr)) |
| 52 |
return false; |
| 53 |
*end_adr = *adr + def_range; |
| 54 |
if (mon_token == T_END) |
| 55 |
return true; |
| 56 |
else { |
| 57 |
if (mon_token == T_COMMA) mon_get_token(); |
| 58 |
if (!mon_expression(end_adr)) |
| 59 |
return false; |
| 60 |
return mon_token == T_END; |
| 61 |
} |
| 62 |
} |
| 63 |
} |
| 64 |
|
| 65 |
|
| 66 |
/* |
| 67 |
* byte_string = (expression | STRING) {COMMA (expression | STRING)} END |
| 68 |
*/ |
| 69 |
|
| 70 |
static bool byte_string(uint8 *&str, uintptr &len) |
| 71 |
{ |
| 72 |
uintptr value; |
| 73 |
|
| 74 |
static const int GRANULARITY = 16; // must be a power of 2 |
| 75 |
str = NULL; |
| 76 |
len = 0; |
| 77 |
goto start; |
| 78 |
|
| 79 |
for (;;) { |
| 80 |
if (mon_token == T_COMMA) { |
| 81 |
mon_get_token(); |
| 82 |
|
| 83 |
start: |
| 84 |
if (mon_token == T_STRING) { |
| 85 |
unsigned n = strlen(mon_string); |
| 86 |
str = (uint8 *)realloc(str, (len + n - 1 + GRANULARITY) & ~(GRANULARITY - 1)); |
| 87 |
memcpy(str + len, mon_string, n); |
| 88 |
len += n; |
| 89 |
mon_get_token(); |
| 90 |
} else if (mon_expression(&value)) { |
| 91 |
str = (uint8 *)realloc(str, (len + GRANULARITY) & ~(GRANULARITY - 1)); |
| 92 |
str[len] = value; |
| 93 |
len++; |
| 94 |
} else { |
| 95 |
if (str) |
| 96 |
free(str); |
| 97 |
return false; |
| 98 |
} |
| 99 |
|
| 100 |
} else if (mon_token == T_END) { |
| 101 |
return true; |
| 102 |
} else { |
| 103 |
mon_error("',' expected"); |
| 104 |
if (str) |
| 105 |
free(str); |
| 106 |
return false; |
| 107 |
} |
| 108 |
} |
| 109 |
} |
| 110 |
|
| 111 |
|
| 112 |
/* |
| 113 |
* Convert character to printable character |
| 114 |
*/ |
| 115 |
|
| 116 |
static inline uint8 char2print(uint8 c) |
| 117 |
{ |
| 118 |
return (c >= 0x20 && c <= 0x7e) ? c : '.'; |
| 119 |
} |
| 120 |
|
| 121 |
|
| 122 |
/* |
| 123 |
* Show version |
| 124 |
* ver |
| 125 |
*/ |
| 126 |
|
| 127 |
void version(void) |
| 128 |
{ |
| 129 |
fprintf(monout, "cxmon V" VERSION "\n"); |
| 130 |
} |
| 131 |
|
| 132 |
|
| 133 |
/* |
| 134 |
* Redirect output |
| 135 |
* o [file] |
| 136 |
*/ |
| 137 |
|
| 138 |
void redir_output(void) |
| 139 |
{ |
| 140 |
// Close old file |
| 141 |
if (monout != monerr) { |
| 142 |
fclose(monout); |
| 143 |
monout = monerr; |
| 144 |
return; |
| 145 |
} |
| 146 |
|
| 147 |
// No argument given? |
| 148 |
if (mon_token == T_END) |
| 149 |
return; |
| 150 |
|
| 151 |
// Otherwise open file |
| 152 |
if (mon_token == T_STRING) { |
| 153 |
mon_get_token(); |
| 154 |
if (mon_token != T_END) { |
| 155 |
mon_error("Too many arguments"); |
| 156 |
return; |
| 157 |
} |
| 158 |
if (!(monout = fopen(mon_string, "w"))) |
| 159 |
mon_error("Unable to open file"); |
| 160 |
} else |
| 161 |
mon_error("'\"' around file name expected"); |
| 162 |
} |
| 163 |
|
| 164 |
|
| 165 |
/* |
| 166 |
* Compute and display expression |
| 167 |
* ? expression |
| 168 |
*/ |
| 169 |
|
| 170 |
void print_expr(void) |
| 171 |
{ |
| 172 |
uintptr val; |
| 173 |
|
| 174 |
if (!mon_expression(&val)) |
| 175 |
return; |
| 176 |
if (mon_token != T_END) { |
| 177 |
mon_error("Too many arguments"); |
| 178 |
return; |
| 179 |
} |
| 180 |
|
| 181 |
if (val > 0x7fffffff) { |
| 182 |
fprintf(monout, "Hex unsigned: $%08x\n" |
| 183 |
"Hex signed : -$%08x\n" |
| 184 |
"Dec unsigned: %u\n" |
| 185 |
"Dec signed : %d\n", val, -val, val, val); |
| 186 |
fprintf(monout, "Char : '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val)); |
| 187 |
} else { |
| 188 |
fprintf(monout, "Hex : $%08x\n" |
| 189 |
"Dec : %d\n", val, val); |
| 190 |
fprintf(monout, "Char: '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val)); |
| 191 |
} |
| 192 |
} |
| 193 |
|
| 194 |
|
| 195 |
/* |
| 196 |
* Execute shell command |
| 197 |
* \ "command" |
| 198 |
*/ |
| 199 |
|
| 200 |
void shell_command(void) |
| 201 |
{ |
| 202 |
if (mon_token != T_STRING) { |
| 203 |
mon_error("'\"' around command expected"); |
| 204 |
return; |
| 205 |
} |
| 206 |
mon_get_token(); |
| 207 |
if (mon_token != T_END) { |
| 208 |
mon_error("Too many arguments"); |
| 209 |
return; |
| 210 |
} |
| 211 |
system(mon_string); |
| 212 |
} |
| 213 |
|
| 214 |
|
| 215 |
/* |
| 216 |
* Memory dump |
| 217 |
* m [start [end]] |
| 218 |
*/ |
| 219 |
|
| 220 |
#define MEMDUMP_BPL 16 // Bytes per line |
| 221 |
|
| 222 |
void memory_dump(void) |
| 223 |
{ |
| 224 |
uintptr adr, end_adr; |
| 225 |
uint8 mem[MEMDUMP_BPL + 1]; |
| 226 |
|
| 227 |
mem[MEMDUMP_BPL] = 0; |
| 228 |
|
| 229 |
if (!range_args(&adr, &end_adr, 16 * MEMDUMP_BPL - 1)) // 16 lines unless end address specified |
| 230 |
return; |
| 231 |
|
| 232 |
while (adr <= end_adr && !mon_aborted()) { |
| 233 |
fprintf(monout, "%0*lx:", int(2 * sizeof(adr)), mon_use_real_mem ? adr: adr % mon_mem_size); |
| 234 |
for (int i=0; i<MEMDUMP_BPL; i++, adr++) { |
| 235 |
if (i % 4 == 0) |
| 236 |
fprintf(monout, " %08x", mon_read_word(adr)); |
| 237 |
mem[i] = char2print(mon_read_byte(adr)); |
| 238 |
} |
| 239 |
fprintf(monout, " '%s'\n", mem); |
| 240 |
} |
| 241 |
|
| 242 |
mon_dot_address = adr; |
| 243 |
} |
| 244 |
|
| 245 |
|
| 246 |
/* |
| 247 |
* ASCII dump |
| 248 |
* i [start [end]] |
| 249 |
*/ |
| 250 |
|
| 251 |
#define ASCIIDUMP_BPL 64 // Bytes per line |
| 252 |
|
| 253 |
void ascii_dump(void) |
| 254 |
{ |
| 255 |
uintptr adr, end_adr; |
| 256 |
uint8 str[ASCIIDUMP_BPL + 1]; |
| 257 |
|
| 258 |
str[ASCIIDUMP_BPL] = 0; |
| 259 |
|
| 260 |
if (!range_args(&adr, &end_adr, 16 * ASCIIDUMP_BPL - 1)) // 16 lines unless end address specified |
| 261 |
return; |
| 262 |
|
| 263 |
while (adr <= end_adr && !mon_aborted()) { |
| 264 |
fprintf(monout, "%0*lx:", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 265 |
for (int i=0; i<ASCIIDUMP_BPL; i++, adr++) |
| 266 |
str[i] = char2print(mon_read_byte(adr)); |
| 267 |
fprintf(monout, " '%s'\n", str); |
| 268 |
} |
| 269 |
|
| 270 |
mon_dot_address = adr; |
| 271 |
} |
| 272 |
|
| 273 |
|
| 274 |
/* |
| 275 |
* Binary dump |
| 276 |
* b [start [end]] |
| 277 |
*/ |
| 278 |
|
| 279 |
void binary_dump(void) |
| 280 |
{ |
| 281 |
uintptr adr, end_adr; |
| 282 |
uint8 str[9]; |
| 283 |
|
| 284 |
str[8] = 0; |
| 285 |
|
| 286 |
if (!range_args(&adr, &end_adr, 7)) // 8 lines unless end address specified |
| 287 |
return; |
| 288 |
|
| 289 |
while (adr <= end_adr && !mon_aborted()) { |
| 290 |
fprintf(monout, "%0*lx:", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 291 |
uint8 b = mon_read_byte(adr); |
| 292 |
for (int m=0x80, i=0; i<8; m>>=1, i++) |
| 293 |
str[i] = (b & m) ? '*' : '.'; |
| 294 |
fprintf(monout, " '%s'\n", str); |
| 295 |
adr++; |
| 296 |
} |
| 297 |
|
| 298 |
mon_dot_address = adr; |
| 299 |
} |
| 300 |
|
| 301 |
|
| 302 |
/* |
| 303 |
* Disassemble |
| 304 |
* d [start [end]] |
| 305 |
* d65 [start [end]] |
| 306 |
* d68 [start [end]] |
| 307 |
* d80 [start [end]] |
| 308 |
* d86 [start [end]] |
| 309 |
* d8086 [start [end]] |
| 310 |
*/ |
| 311 |
|
| 312 |
enum CPUType { |
| 313 |
CPU_PPC, |
| 314 |
CPU_6502, |
| 315 |
CPU_680x0, |
| 316 |
CPU_Z80, |
| 317 |
CPU_80x86_32, |
| 318 |
CPU_80x86_16, |
| 319 |
CPU_x86_64, |
| 320 |
CPU_MIPS, |
| 321 |
CPU_MIPS_LITTLE, |
| 322 |
}; |
| 323 |
|
| 324 |
static void disassemble(CPUType type) |
| 325 |
{ |
| 326 |
uintptr adr, end_adr; |
| 327 |
|
| 328 |
if (!range_args(&adr, &end_adr, 16 * 4 - 1)) // 16 lines unless end address specified |
| 329 |
return; |
| 330 |
|
| 331 |
switch (type) { |
| 332 |
case CPU_PPC: |
| 333 |
while (adr <= end_adr && !mon_aborted()) { |
| 334 |
uint32 w = mon_read_word(adr); |
| 335 |
fprintf(monout, "%0*lx: %08x\t", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size, w); |
| 336 |
disass_ppc(monout, mon_use_real_mem ? adr : adr % mon_mem_size, w); |
| 337 |
adr += 4; |
| 338 |
} |
| 339 |
break; |
| 340 |
|
| 341 |
case CPU_6502: |
| 342 |
while (adr <= end_adr && !mon_aborted()) { |
| 343 |
uint8 op = mon_read_byte(adr); |
| 344 |
uint8 lo = mon_read_byte(adr + 1); |
| 345 |
uint8 hi = mon_read_byte(adr + 2); |
| 346 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 347 |
adr += disass_6502(monout, mon_use_real_mem ? adr : adr % mon_mem_size, op, lo, hi); |
| 348 |
} |
| 349 |
break; |
| 350 |
|
| 351 |
case CPU_680x0: |
| 352 |
while (adr <= end_adr && !mon_aborted()) { |
| 353 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 354 |
adr += disass_68k(monout, mon_use_real_mem ? adr : adr % mon_mem_size); |
| 355 |
} |
| 356 |
break; |
| 357 |
|
| 358 |
case CPU_Z80: |
| 359 |
while (adr <= end_adr && !mon_aborted()) { |
| 360 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 361 |
adr += disass_z80(monout, mon_use_real_mem ? adr : adr % mon_mem_size); |
| 362 |
} |
| 363 |
break; |
| 364 |
|
| 365 |
case CPU_MIPS: |
| 366 |
case CPU_MIPS_LITTLE: |
| 367 |
while (adr <= end_adr && !mon_aborted()) { |
| 368 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 369 |
adr += disass_mips(monout, mon_use_real_mem ? adr : adr % mon_mem_size, type == CPU_MIPS_LITTLE); |
| 370 |
} |
| 371 |
break; |
| 372 |
|
| 373 |
case CPU_x86_64: |
| 374 |
while (adr <= end_adr && !mon_aborted()) { |
| 375 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 376 |
adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 64); |
| 377 |
} |
| 378 |
break; |
| 379 |
|
| 380 |
case CPU_80x86_32: |
| 381 |
while (adr <= end_adr && !mon_aborted()) { |
| 382 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 383 |
adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 32); |
| 384 |
} |
| 385 |
break; |
| 386 |
|
| 387 |
case CPU_80x86_16: |
| 388 |
while (adr <= end_adr && !mon_aborted()) { |
| 389 |
fprintf(monout, "%0*lx: ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 390 |
adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 16); |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
mon_dot_address = adr; |
| 395 |
} |
| 396 |
|
| 397 |
void disassemble_ppc(void) |
| 398 |
{ |
| 399 |
disassemble(CPU_PPC); |
| 400 |
} |
| 401 |
|
| 402 |
void disassemble_6502(void) |
| 403 |
{ |
| 404 |
disassemble(CPU_6502); |
| 405 |
} |
| 406 |
|
| 407 |
void disassemble_680x0(void) |
| 408 |
{ |
| 409 |
disassemble(CPU_680x0); |
| 410 |
} |
| 411 |
|
| 412 |
void disassemble_z80(void) |
| 413 |
{ |
| 414 |
disassemble(CPU_Z80); |
| 415 |
} |
| 416 |
|
| 417 |
void disassemble_80x86_32(void) |
| 418 |
{ |
| 419 |
disassemble(CPU_80x86_32); |
| 420 |
} |
| 421 |
|
| 422 |
void disassemble_80x86_16(void) |
| 423 |
{ |
| 424 |
disassemble(CPU_80x86_16); |
| 425 |
} |
| 426 |
|
| 427 |
void disassemble_x86_64(void) |
| 428 |
{ |
| 429 |
disassemble(CPU_x86_64); |
| 430 |
} |
| 431 |
|
| 432 |
void disassemble_mips(void) |
| 433 |
{ |
| 434 |
disassemble(CPU_MIPS); |
| 435 |
} |
| 436 |
|
| 437 |
void disassemble_mipsel(void) |
| 438 |
{ |
| 439 |
disassemble(CPU_MIPS_LITTLE); |
| 440 |
} |
| 441 |
|
| 442 |
|
| 443 |
/* |
| 444 |
* Modify memory |
| 445 |
* : addr bytestring |
| 446 |
*/ |
| 447 |
|
| 448 |
void modify(void) |
| 449 |
{ |
| 450 |
uintptr adr, len, src_adr = 0; |
| 451 |
uint8 *str; |
| 452 |
|
| 453 |
if (!mon_expression(&adr)) |
| 454 |
return; |
| 455 |
if (!byte_string(str, len)) |
| 456 |
return; |
| 457 |
|
| 458 |
while (src_adr < len) |
| 459 |
mon_write_byte(adr++, str[src_adr++]); |
| 460 |
mon_dot_address = adr; |
| 461 |
|
| 462 |
free(str); |
| 463 |
} |
| 464 |
|
| 465 |
|
| 466 |
/* |
| 467 |
* Fill |
| 468 |
* f start end bytestring |
| 469 |
*/ |
| 470 |
|
| 471 |
void fill(void) |
| 472 |
{ |
| 473 |
uintptr adr, end_adr, len, src_adr = 0; |
| 474 |
uint8 *str; |
| 475 |
|
| 476 |
if (!mon_expression(&adr)) |
| 477 |
return; |
| 478 |
if (!mon_expression(&end_adr)) |
| 479 |
return; |
| 480 |
if (!byte_string(str, len)) |
| 481 |
return; |
| 482 |
|
| 483 |
if (len) { |
| 484 |
while (adr <= end_adr) |
| 485 |
mon_write_byte(adr++, str[src_adr++ % len]); |
| 486 |
} |
| 487 |
|
| 488 |
free(str); |
| 489 |
} |
| 490 |
|
| 491 |
|
| 492 |
/* |
| 493 |
* Transfer memory |
| 494 |
* t start end dest |
| 495 |
*/ |
| 496 |
|
| 497 |
void transfer(void) |
| 498 |
{ |
| 499 |
uintptr adr, end_adr, dest; |
| 500 |
int num; |
| 501 |
|
| 502 |
if (!mon_expression(&adr)) |
| 503 |
return; |
| 504 |
if (!mon_expression(&end_adr)) |
| 505 |
return; |
| 506 |
if (!mon_expression(&dest)) |
| 507 |
return; |
| 508 |
if (mon_token != T_END) { |
| 509 |
mon_error("Too many arguments"); |
| 510 |
return; |
| 511 |
} |
| 512 |
|
| 513 |
num = end_adr - adr + 1; |
| 514 |
|
| 515 |
if (dest < adr) |
| 516 |
for (int i=0; i<num; i++) |
| 517 |
mon_write_byte(dest++, mon_read_byte(adr++)); |
| 518 |
else { |
| 519 |
dest += end_adr - adr; |
| 520 |
for (int i=0; i<num; i++) |
| 521 |
mon_write_byte(dest--, mon_read_byte(end_adr--)); |
| 522 |
} |
| 523 |
} |
| 524 |
|
| 525 |
|
| 526 |
/* |
| 527 |
* Compare |
| 528 |
* c start end dest |
| 529 |
*/ |
| 530 |
|
| 531 |
void compare(void) |
| 532 |
{ |
| 533 |
uintptr adr, end_adr, dest; |
| 534 |
int num = 0; |
| 535 |
|
| 536 |
if (!mon_expression(&adr)) |
| 537 |
return; |
| 538 |
if (!mon_expression(&end_adr)) |
| 539 |
return; |
| 540 |
if (!mon_expression(&dest)) |
| 541 |
return; |
| 542 |
if (mon_token != T_END) { |
| 543 |
mon_error("Too many arguments"); |
| 544 |
return; |
| 545 |
} |
| 546 |
|
| 547 |
while (adr <= end_adr && !mon_aborted()) { |
| 548 |
if (mon_read_byte(adr) != mon_read_byte(dest)) { |
| 549 |
fprintf(monout, "%0*lx ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 550 |
num++; |
| 551 |
if (!(num & 7)) |
| 552 |
fputc('\n', monout); |
| 553 |
} |
| 554 |
adr++; dest++; |
| 555 |
} |
| 556 |
|
| 557 |
if (num & 7) |
| 558 |
fputc('\n', monout); |
| 559 |
fprintf(monout, "%d byte(s) different\n", num); |
| 560 |
} |
| 561 |
|
| 562 |
|
| 563 |
/* |
| 564 |
* Search for byte string |
| 565 |
* h start end bytestring |
| 566 |
*/ |
| 567 |
|
| 568 |
void hunt(void) |
| 569 |
{ |
| 570 |
uintptr adr, end_adr, len; |
| 571 |
uint8 *str; |
| 572 |
int num = 0; |
| 573 |
|
| 574 |
if (!mon_expression(&adr)) |
| 575 |
return; |
| 576 |
if (!mon_expression(&end_adr)) |
| 577 |
return; |
| 578 |
if (!byte_string(str, len)) |
| 579 |
return; |
| 580 |
|
| 581 |
while ((adr+len-1) <= end_adr && !mon_aborted()) { |
| 582 |
uint32 i; |
| 583 |
|
| 584 |
for (i=0; i<len; i++) |
| 585 |
if (mon_read_byte(adr + i) != str[i]) |
| 586 |
break; |
| 587 |
|
| 588 |
if (i == len) { |
| 589 |
fprintf(monout, "%0*lx ", int(2 * sizeof(adr)), mon_use_real_mem ? adr : adr % mon_mem_size); |
| 590 |
num++; |
| 591 |
if (num == 1) |
| 592 |
mon_dot_address = adr; |
| 593 |
if (!(num & 7)) |
| 594 |
fputc('\n', monout); |
| 595 |
} |
| 596 |
adr++; |
| 597 |
} |
| 598 |
|
| 599 |
free(str); |
| 600 |
|
| 601 |
if (num & 7) |
| 602 |
fputc('\n', monout); |
| 603 |
fprintf(monout, "Found %d occurrences\n", num); |
| 604 |
} |
| 605 |
|
| 606 |
|
| 607 |
/* |
| 608 |
* Load data |
| 609 |
* [ start "file" |
| 610 |
*/ |
| 611 |
|
| 612 |
void load_data(void) |
| 613 |
{ |
| 614 |
uintptr start_adr; |
| 615 |
FILE *file; |
| 616 |
int fc; |
| 617 |
|
| 618 |
if (!mon_expression(&start_adr)) |
| 619 |
return; |
| 620 |
if (mon_token == T_END) { |
| 621 |
mon_error("Missing file name"); |
| 622 |
return; |
| 623 |
} |
| 624 |
if (mon_token != T_STRING) { |
| 625 |
mon_error("'\"' around file name expected"); |
| 626 |
return; |
| 627 |
} |
| 628 |
mon_get_token(); |
| 629 |
if (mon_token != T_END) { |
| 630 |
mon_error("Too many arguments"); |
| 631 |
return; |
| 632 |
} |
| 633 |
|
| 634 |
if (!(file = fopen(mon_string, "rb"))) |
| 635 |
mon_error("Unable to open file"); |
| 636 |
else { |
| 637 |
uintptr adr = start_adr; |
| 638 |
|
| 639 |
while ((fc = fgetc(file)) != EOF) |
| 640 |
mon_write_byte(adr++, fc); |
| 641 |
fclose(file); |
| 642 |
|
| 643 |
fprintf(monerr, "%08x bytes read from %0*lx to %0*lx\n", adr - start_adr, int(2 * sizeof(adr)), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, int(2 * sizeof(adr)), mon_use_real_mem ? adr-1 : (adr-1) % mon_mem_size); |
| 644 |
mon_dot_address = adr; |
| 645 |
} |
| 646 |
} |
| 647 |
|
| 648 |
|
| 649 |
/* |
| 650 |
* Save data |
| 651 |
* ] start size "file" |
| 652 |
*/ |
| 653 |
|
| 654 |
void save_data(void) |
| 655 |
{ |
| 656 |
uintptr start_adr, size; |
| 657 |
FILE *file; |
| 658 |
|
| 659 |
if (!mon_expression(&start_adr)) |
| 660 |
return; |
| 661 |
if (!mon_expression(&size)) |
| 662 |
return; |
| 663 |
if (mon_token == T_END) { |
| 664 |
mon_error("Missing file name"); |
| 665 |
return; |
| 666 |
} |
| 667 |
if (mon_token != T_STRING) { |
| 668 |
mon_error("'\"' around file name expected"); |
| 669 |
return; |
| 670 |
} |
| 671 |
mon_get_token(); |
| 672 |
if (mon_token != T_END) { |
| 673 |
mon_error("Too many arguments"); |
| 674 |
return; |
| 675 |
} |
| 676 |
|
| 677 |
if (!(file = fopen(mon_string, "wb"))) |
| 678 |
mon_error("Unable to create file"); |
| 679 |
else { |
| 680 |
uintptr adr = start_adr, end_adr = start_adr + size - 1; |
| 681 |
|
| 682 |
while (adr <= end_adr) |
| 683 |
fputc(mon_read_byte(adr++), file); |
| 684 |
fclose(file); |
| 685 |
|
| 686 |
fprintf(monerr, "%08x bytes written from %0*lx to %0*lx\n", size, int(2 * sizeof(adr)), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, int(2 * sizeof(adr)), mon_use_real_mem ? end_adr : end_adr % mon_mem_size); |
| 687 |
} |
| 688 |
} |
