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[/] [ao486/] [trunk/] [bochs486/] [main_reader.cpp] - Blame information for rev 3

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Line No. Rev Author Line
1 2 alfik 
#include <cstdio>
2 
#include <cstdlib>
3 
 
4 
#include <sys/mman.h>
5 
#include <sys/types.h>
6 
#include <sys/stat.h>
7 
#include <fcntl.h>
8 
#include <unistd.h>
9 
 
10 
#include "bochs.h"
11 
#include "cpu.h"
12 
#include "iodev/iodev.h"
13 
 
14 
//------------------------------------------------------------------------------
15 
//------------------------------------------------------------------------------
16 
//------------------------------------------------------------------------------
17 
 
18 
typedef unsigned char  uint8;
19 
typedef unsigned short uint16;
20 
typedef unsigned int   uint32;
21 
typedef unsigned long long uint64;
22 
 
23 
//------------------------------------------------------------------------------
24 
//------------------------------------------------------------------------------
25 
//------------------------------------------------------------------------------ logfunctions
26 
 
27 
void logfunctions::panic(const char *fmt, ...) {
28 
    printf("#bochs486_reader::logfunctions::panic(): ");
29 
 
30 
    va_list ap;
31 
    va_start(ap, fmt);
32 
    vprintf(fmt, ap);
33 
    va_end(ap);
34 
 
35 
    printf("\n");
36 
    fflush(stdout);
37 
 
38 
    if(strstr(fmt, "exception with no resolution") != NULL) {
39 
        printf("start_shutdown: 0\n");
40 
        printf("\n");
41 
        fflush(stdout);
42 
        exit(0);
43 
    }
44 
    else {
45 
        exit(-1);
46 
    }
47 
}
48 
void logfunctions::error(const char *fmt, ...) {
49 
    printf("#bochs486_reader::logfunctions::error(): ");
50 
 
51 
    va_list ap;
52 
    va_start(ap, fmt);
53 
    vprintf(fmt, ap);
54 
    va_end(ap);
55 
 
56 
    printf("\n");
57 
    fflush(stdout);
58 
}
59 
void logfunctions::ldebug(const char *fmt, ...) {
60 
    printf("#bochs486_reader::logfunctions::debug(): ");
61 
 
62 
    va_list ap;
63 
    va_start(ap, fmt);
64 
    vprintf(fmt, ap);
65 
    va_end(ap);
66 
 
67 
    printf("\n");
68 
    fflush(stdout);
69 
}
70 
void logfunctions::info(const char *fmt, ...) {
71 
    printf("#bochs486_reader::logfunctions::info(): ");
72 
 
73 
    va_list ap;
74 
    va_start(ap, fmt);
75 
    vprintf(fmt, ap);
76 
    va_end(ap);
77 
 
78 
    printf("\n");
79 
    fflush(stdout);
80 
}
81 
void logfunctions::put(const char *n, const char *p) {
82 
}
83 
logfunctions::logfunctions() {
84 
}
85 
logfunctions::~logfunctions() {
86 
}
87 
 
88 
static logfunctions theLog;
89 
logfunctions *pluginlog         = &theLog;
90 
logfunctions *siminterface_log  = &theLog;
91 
 
92 
//------------------------------------------------------------------------------
93 
//------------------------------------------------------------------------------
94 
//------------------------------------------------------------------------------ menu
95 
 
96 
void bx_param_string_c::text_print(FILE *fp) {
97 
printf("#bochs486_reader::bx_param_string_c::text_print()\n");
98 
}
99 
void bx_param_enum_c::text_print(FILE *fp) {
100 
printf("#bochs486_reader::bx_param_enum_c::text_print()\n");
101 
}
102 
void bx_param_bool_c::text_print(FILE *fp) {
103 
printf("#bochs486_reader::bx_param_bool_c::text_print()\n");
104 
}
105 
void bx_param_num_c::text_print(FILE *fp) {
106 
printf("#bochs486_reader::bx_param_num_c::text_print()\n");
107 
}
108 
void bx_list_c::text_print(FILE *fp) {
109 
printf("#bochs486_reader::bx_list_c::text_print()\n");
110 
}
111 
int bx_param_enum_c::text_ask(FILE *fpin, FILE *fpout) {
112 
printf("#bochs486_reader::bx_param_enum_c::text_ask()\n");
113 
    return 0;
114 
}
115 
int bx_param_bool_c::text_ask(FILE *fpin, FILE *fpout) {
116 
printf("#bochs486_reader::bx_param_bool_c::text_ask()\n");
117 
    return 0;
118 
}
119 
int bx_param_num_c::text_ask(FILE *fpin, FILE *fpout) {
120 
printf("#bochs486_reader::bx_param_num_c::text_ask()\n");
121 
    return 0;
122 
}
123 
int bx_param_string_c::text_ask(FILE *fpin, FILE *fpout) {
124 
printf("#bochs486_reader::bx_param_string_c::text_ask()\n");
125 
    return 0;
126 
}
127 
int bx_list_c::text_ask(FILE *fpin, FILE *fpout) {
128 
printf("#bochs486_reader::bx_list_c::text_ask()\n");
129 
    return 0;
130 
}
131 
 
132 
bx_list_c *root_param = NULL;
133 
 
134 
bx_gui_c *bx_gui = NULL;
135 
 
136 
//------------------------------------------------------------------------------
137 
//------------------------------------------------------------------------------
138 
//------------------------------------------------------------------------------ cpu
139 
 
140 
void BX_CPU_C::enter_system_management_mode(void) {
141 
printf("#bochs486_reader: enter_system_management_mod()\n");
142 
}
143 
void BX_CPU_C::init_SMRAM(void) {
144 
printf("#bochs486_reader: init_SMRAM()\n");
145 
}
146 
void BX_CPU_C::debug(bx_address offset) {
147 
printf("#bochs486_reader: debug(offset=%08x)\n", offset);
148 
}
149 
void BX_CPU_C::debug_disasm_instruction(bx_address offset) {
150 
printf("#bochs486_reader: debug_disasm_instruction(offset=%08x)\n", offset);
151 
}
152 
 
153 
//------------------------------------------------------------------------------
154 
//------------------------------------------------------------------------------
155 
//------------------------------------------------------------------------------ pc_system
156 
 
157 
void bx_pc_system_c::countdownEvent(void) {
158 
}
159 
bx_pc_system_c::bx_pc_system_c() {
160 
}
161 
int bx_pc_system_c::Reset(unsigned type) {
162 
    printf("#bochs486_reader: bx_pc_system_c::Reset(%d) unimplemented.\n", type);
163 
    std::exit(-1);
164 
}
165 
 
166 
bx_pc_system_c bx_pc_system;
167 
 
168 
const char* cpu_mode_string(unsigned cpu_mode) {
169 
  static const char *cpu_mode_name[] = {
170 
     "real mode",
171 
     "v8086 mode",
172 
     "protected mode",
173 
     "compatibility mode",
174 
     "long mode",
175 
     "unknown mode"
176 
  };
177 
 
178 
  if(cpu_mode >= 5) cpu_mode = 5;
179 
  return cpu_mode_name[cpu_mode];
180 
}
181 
 
182 
const char *choices[] = { "0_choice", NULL };
183 
 
184 
class bochs486_sim : public bx_simulator_interface_c {
185 
 
186 
    bx_param_bool_c *get_param_bool(const char *pname, bx_param_c *base) {
187 
        if(strcmp(pname, BXPN_CPUID_LIMIT_WINNT) == 0)      return new bx_param_bool_c(  NULL, "b0", "", "", 0);
188 
        if(strcmp(pname, BXPN_CPUID_SSE4A) == 0)            return new bx_param_bool_c(  NULL, "b1", "", "", 0);
189 
        if(strcmp(pname, BXPN_CPUID_SEP) == 0)              return new bx_param_bool_c(  NULL, "b2", "", "", 0);
190 
        if(strcmp(pname, BXPN_CPUID_XSAVE) == 0)            return new bx_param_bool_c(  NULL, "b3", "", "", 0);
191 
        if(strcmp(pname, BXPN_CPUID_XSAVEOPT) == 0)         return new bx_param_bool_c(  NULL, "b4", "", "", 0);
192 
        if(strcmp(pname, BXPN_CPUID_AES) == 0)              return new bx_param_bool_c(  NULL, "b5", "", "", 0);
193 
        if(strcmp(pname, BXPN_CPUID_MOVBE) == 0)            return new bx_param_bool_c(  NULL, "b6", "", "", 0);
194 
        if(strcmp(pname, BXPN_CPUID_SMEP) == 0)             return new bx_param_bool_c(  NULL, "b7", "", "", 0);
195 
        if(strcmp(pname, BXPN_RESET_ON_TRIPLE_FAULT) == 0)  return new bx_param_bool_c(  NULL, "b8", "", "", 0);
196 
        return NULL;
197 
    }
198 
    bx_param_string_c *get_param_string(const char *pname, bx_param_c *base) {
199 
        if(strcmp(pname, BXPN_VENDOR_STRING) == 0) return new bx_param_string_c(NULL, "s0", "", "", "GeniuneAO486");
200 
        if(strcmp(pname, BXPN_BRAND_STRING) == 0)  return new bx_param_string_c(NULL, "s1", "", "", "ao486                                           ");
201 
        return NULL;
202 
    }
203 
    bx_param_enum_c *get_param_enum(const char *pname, bx_param_c *base) {
204 
        if(strcmp(pname, BXPN_CPU_MODEL) == 0)  return new bx_param_enum_c(  NULL, "e0", "", "", choices, 0);
205 
        if(strcmp(pname, BXPN_CPUID_SSE) == 0)  return new bx_param_enum_c(  NULL, "e1", "", "", choices, 0);
206 
        return NULL;
207 
    }
208 
    bx_param_num_c *get_param_num(const char *pname, bx_param_c *base) {
209 
        if(strcmp(pname, BXPN_CPUID_STEPPING) == 0)  return new bx_param_num_c(   NULL, "n0", "", "", 0xB,0xB,0xB);
210 
        if(strcmp(pname, BXPN_CPUID_MODEL) == 0)     return new bx_param_num_c(   NULL, "n1", "", "", 0x5,0x5,0x5);
211 
        if(strcmp(pname, BXPN_CPUID_FAMILY) == 0)    return new bx_param_num_c(   NULL, "n2", "", "", 0x4,0x4,0x4);
212 
        if(strcmp(pname, BXPN_CPUID_LEVEL) == 0)     return new bx_param_num_c(   NULL, "n3", "", "", 0x4,0x4,0x4);
213 
        return NULL;
214 
    }
215 
};
216 
 
217 
//------------------------------------------------------------------------------
218 
 
219 
FILE *check_fp = NULL;
220 
 
221 
char check_line[256];
222 
char check_next[256];
223 
int check_state = 0;
224 
/*
225 
 
226 
1 - EOF is next
227 
2 - both full; line will be used
228 
*/
229 
 
230 
uint32 check_next_irq_at = 0;
231 
uint32 check_next_irq_vector = 0;
232 
 
233 
union memory_t {
234 
    uint8  bytes [134217728];
235 
    uint16 shorts[67108864];
236 
    uint32 ints  [33554432];
237 
};
238 
memory_t check_memory;
239 
 
240 
uint32 instr_counter = 0;
241 
 
242 
void load_file(const char *name, int byte_location) {
243 
    FILE *fp = fopen(name, "rb");
244 
    if(fp == NULL) {
245 
        fprintf(stderr, "#bochs486_reader: error opening file: %s\n", name);
246 
        exit(-1);
247 
    }
248 
 
249 
    int int_ret = fseek(fp, 0, SEEK_END);
250 
    if(int_ret != 0) {
251 
        fclose(fp);
252 
        fprintf(stderr, "#bochs486_reader: error stat file: %s\n", name);
253 
        exit(-1);
254 
    }
255 
 
256 
    long size = ftell(fp);
257 
    rewind(fp);
258 
 
259 
    int_ret = fread((void *)&check_memory.bytes[byte_location], size, 1, fp);
260 
    if(int_ret != 1) {
261 
        fclose(fp);
262 
        fprintf(stderr, "#bochs486_reader: error loading file: %s\n", name);
263 
        exit(-1);
264 
    }
265 
    fclose(fp);
266 
}
267 
 
268 
bool check_read_fp(char *line) {
269 
    while(true) {
270 
        char *endoffile = fgets(line, 256, check_fp);
271 
        if(endoffile == NULL) return false;
272 
printf("line: %s\n", line);
273 
        uint32 val1 = 0, val2 = 0;
274 
        int scan_ret = sscanf(line, "Exception 0x%x at %x", &val1, &val2);
275 
        if(scan_ret == 2) {
276 
            //ignore
277 
            continue;
278 
        }
279 
 
280 
        val1 = val2 = 0;
281 
        scan_ret = sscanf(line, "IAC 0x%x at %d", &val1, &val2);
282 
        if(scan_ret == 2) {
283 
            check_next_irq_vector = val1;
284 
            check_next_irq_at     = val2;
285 
 
286 
            continue;
287 
        }
288 
        break;
289 
    }
290 
    return true;
291 
}
292 
 
293 
uint64 total_size = 0;
294 
uint64 last_percent = 0;
295 
 
296 
void check_init() {
297 
    if(check_fp == NULL) {
298 
        //const char *filename = "./../backup/run-10/track.txt";
299 
        const char *filename = "./../ao486/io_win95pipeline_1_bochs.txt";
300 
 
301 
        check_fp = fopen(filename, "rb");
302 
        if(check_fp == NULL) {
303 
            fprintf(stderr, "#bochs486_reader: can not open reader file.\n");
304 
            exit(-1);
305 
        }
306 
 
307 
        struct stat st;
308 
        memset(&st, 0, sizeof(struct stat));
309 
        stat(filename, &st);
310 
        total_size = st.st_size;
311 
        fprintf(stderr, "#bochs486_reader: total file size: %d\n", total_size);
312 
    }
313 
 
314 
    uint64 curr_pos = ftell(check_fp);
315 
    uint64 curr_percent = curr_pos * 100 / total_size;
316 
    if(curr_percent != last_percent) {
317 
        last_percent = curr_percent;
318 
        fprintf(stderr, "#bochs486_reader: %d percent\n", (uint32)last_percent);
319 
    }
320 
 
321 
    if(check_state == 0) {
322 
        if(check_read_fp(check_line) == false) {
323 
            fprintf(stderr, "#bochs486_reader: EOF\n");
324 
            exit(0);
325 
        }
326 
        if(check_read_fp(check_next) == false) {
327 
            check_state = 1;
328 
            return;
329 
        }
330 
        check_state = 2;
331 
    }
332 
    else if(check_state == 1) {
333 
        fprintf(stderr, "#bochs486_reader: EOF\n");
334 
        exit(0);
335 
    }
336 
    else if(check_state == 2) {
337 
        memcpy(check_line, check_next, 256);
338 
 
339 
        if(check_read_fp(check_next) == false) {
340 
            check_state = 1;
341 
            return;
342 
        }
343 
        check_state = 2;
344 
    }
345 
}
346 
 
347 
uint32 check_io_rd(uint32 address, uint32 byteenable) {
348 
    check_init();
349 
 
350 
    uint32 io_addr = 0, io_byteena = 0, io_data = 0;
351 
    int scan_ret = sscanf(check_line, "io rd %x %x %x", &io_addr, &io_byteena, &io_data);
352 
 
353 
    if(scan_ret == 3) {
354 
        if(address != io_addr) {
355 
            fprintf(stderr, "#check_io_rd MISMATCH:%s != l:%04x %x\n", check_line, address, byteenable);
356 
            exit(-1);
357 
        }
358 
        if(byteenable != io_byteena) {
359 
            fprintf(stderr, "#check_io_rd MISMATCH:%s != l:%04x %x\n", check_line, address, byteenable);
360 
            exit(-1);
361 
        }
362 
    }
363 
    else {
364 
        fprintf(stderr, "#check_io_rd MISMATCH: f:%s != l:%04x %x\n", check_line, address, byteenable);
365 
        exit(-1);
366 
    }
367 
    return io_data;
368 
}
369 
 
370 
void check_io_wr(uint32 address, uint32 byteenable, uint32 data) {
371 
    check_init();
372 
 
373 
    uint32 io_addr = 0, io_byteena = 0, io_data = 0;
374 
    int scan_ret = sscanf(check_line, "io wr %x %x %x", &io_addr, &io_byteena, &io_data);
375 
 
376 
    if(scan_ret == 3) {
377 
        if(((byteenable>>0) & 1) == 0) { data &= 0xFFFFFF00; io_data &= 0xFFFFFF00; }
378 
        if(((byteenable>>1) & 1) == 0) { data &= 0xFFFF00FF; io_data &= 0xFFFF00FF; }
379 
        if(((byteenable>>2) & 1) == 0) { data &= 0xFF00FFFF; io_data &= 0xFF00FFFF; }
380 
        if(((byteenable>>3) & 1) == 0) { data &= 0x00FFFFFF; io_data &= 0x00FFFFFF; }
381 
 
382 
        if(address != io_addr) {
383 
            fprintf(stderr, "#check_io_wr MISMATCH:%s | %04x %x %08x\n", check_line, address, byteenable, data);
384 
            exit(-1);
385 
        }
386 
        if(byteenable != io_byteena) {
387 
            fprintf(stderr, "#check_io_wr MISMATCH:%s | %04x %x %08x\n", check_line, address, byteenable, data);
388 
            exit(-1);
389 
        }
390 
        if(data != io_data) {
391 
            fprintf(stderr, "#check_io_wr MISMATCH:%s | %04x %x %08x\n", check_line, address, byteenable, data);
392 
            exit(-1);
393 
        }
394 
    }
395 
    else {
396 
        fprintf(stderr, "#check_io_wr MISMATCH:%s | %04x %x %08x\n", check_line, address, byteenable, data);
397 
        exit(-1);
398 
    }
399 
}
400 
 
401 
void check_mem_wr(uint32 address, uint32 byteenable, uint32 data) {
402 
    check_init();
403 
 
404 
    uint32 mem_addr = 0, mem_byteena = 0, mem_data = 0;
405 
    int scan_ret = sscanf(check_line, "mem wr %x %x %x", &mem_addr, &mem_byteena, &mem_data);
406 
 
407 
    if(scan_ret == 3) {
408 
        if(((byteenable>>0) & 1) == 0) { data &= 0xFFFFFF00; mem_data &= 0xFFFFFF00; }
409 
        if(((byteenable>>1) & 1) == 0) { data &= 0xFFFF00FF; mem_data &= 0xFFFF00FF; }
410 
        if(((byteenable>>2) & 1) == 0) { data &= 0xFF00FFFF; mem_data &= 0xFF00FFFF; }
411 
        if(((byteenable>>3) & 1) == 0) { data &= 0x00FFFFFF; mem_data &= 0x00FFFFFF; }
412 
 
413 
        if(address != mem_addr) {
414 
            fprintf(stderr, "#check_mem_wr MISMATCH:%s != l:%08x %x %08x\n", check_line, address, byteenable, data);
415 
            exit(-1);
416 
        }
417 
        if(byteenable != mem_byteena) {
418 
            fprintf(stderr, "#check_mem_wr MISMATCH:%s != l:%08x %x %08x\n", check_line, address, byteenable, data);
419 
            exit(-1);
420 
        }
421 
        if(data != mem_data) {
422 
            fprintf(stderr, "#check_mem_wr MISMATCH:%s != l:%08x %x %08x\n", check_line, address, byteenable, data);
423 
            exit(-1);
424 
        }
425 
 
426 
        for(uint32 i=0; i<4; i++) {
427 
            if(byteenable & 1) {
428 
                check_memory.bytes[address + i] = data & 0xFF;
429 
            }
430 
            byteenable >>= 1;
431 
            data >>= 8;
432 
        }
433 
    }
434 
    else {
435 
        fprintf(stderr, "#check_io_wr MISMATCH:%s != l:%08x %x %08x\n", check_line, address, byteenable, data);
436 
        exit(-1);
437 
    }
438 
}
439 
 
440 
uint32 check_mem_rd(uint32 address, uint32 byteenable) {
441 
    check_init();
442 
 
443 
    uint32 mem_addr = 0, mem_byteena = 0, mem_data = 0;
444 
    int scan_ret = sscanf(check_line, "mem rd %x %x %x", &mem_addr, &mem_byteena, &mem_data);
445 
 
446 
    if(scan_ret == 3) {
447 
        if(address != mem_addr) {
448 
            fprintf(stderr, "#check_mem_rd MISMATCH:%s != l:%08x %x\n", check_line, address, byteenable);
449 
            exit(-1);
450 
        }
451 
        if(byteenable != mem_byteena) {
452 
            fprintf(stderr, "#check_mem_rd MISMATCH:%s != l:%08x %x\n", check_line, address, byteenable);
453 
            exit(-1);
454 
        }
455 
    }
456 
    else {
457 
        fprintf(stderr, "#check_mem_rd MISMATCH:%s != l:%04x %x\n", check_line, address, byteenable);
458 
        exit(-1);
459 
    }
460 
    return mem_data;
461 
}
462 
 
463 
//------------------------------------------------------------------------------
464 
 
465 
bx_simulator_interface_c *SIM;
466 
 
467 
BOCHSAPI BX_CPU_C bx_cpu;
468 
int interrupt_vector;
469 
 
470 
//------------------------------------------------------------------------------
471 
//------------------------------------------------------------------------------
472 
//------------------------------------------------------------------------------ devices
473 
 
474 
class bochs486_pic : public bx_pic_stub_c {
475 
    Bit8u IAC(void) { bx_cpu.clear_INTR(); return interrupt_vector & 0xFF; }
476 
};
477 
 
478 
int is_io_ignored(Bit16u address, Bit32u byteena) {
479 
 
480 
    bool read_ff =
481 
            (address >= 0x0010 && address < 0x0020)     ||
482 
            (address == 0x0020 && (byteena & 0x3) == 0) ||
483 
            (address >= 0x0024 &&  address < 0x0040)    ||
484 
            (address >= 0x0044 &&  address < 0x0060)    ||
485 
            (address >= 0x0068 &&  address < 0x0070)    ||
486 
            (address == 0x0070 && (byteena & 0x3) == 0) ||
487 
            (address >= 0x0074 &&  address < 0x0080)    ||
488 
            (address == 0x00A0 && (byteena & 0x3) == 0) ||
489 
            (address >= 0x00A4 &&  address < 0x00C0)    ||
490 
            (address >= 0x00E0 &&  address < 0x01F0)    ||
491 
            (address >= 0x01F8 &&  address < 0x0220)    ||
492 
            (address >= 0x0230 &&  address < 0x0388)    ||
493 
            (address == 0x0388 && (byteena & 0x3) == 0) ||
494 
            (address >= 0x038C &&  address < 0x03B0)    ||
495 
            (address >= 0x03E0 &&  address < 0x03F0)    ||
496 
            (address >= 0x03F8 &&  address < 0x8888)    ||
497 
            (address >= 0x8890);
498 
 
499 
    bool read_ff_part =
500 
            (address == 0x0020) ||
501 
            (address == 0x0070) ||
502 
            (address == 0x00A0) ||
503 
            (address == 0x0388);
504 
 
505 
    if(read_ff)         return 1;
506 
    if(read_ff_part)    return 2;
507 
    return 0;
508 
}
509 
 
510 
  Bit32u BX_CPP_AttrRegparmN(2)
511 
bx_devices_c::inp(Bit16u addr, unsigned io_len) {
512 
//printf("#bochs486_pc:inp(%04x, %d)\n", addr, io_len);
513 
    // read aligned to 4 bytes, with byteena
514 
 
515 
    bool two_reads = (addr & 0x3) + io_len > 4;
516 
 
517 
    Bit16u   addr1    = addr & 0xFFFC;
518 
    unsigned byteena1 = (io_len == 1)? 0x1 : (io_len == 2)? 0x3 : (io_len == 3)? 0x7 : 0xF;
519 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
520 
 
521 
    Bit16u   addr2    = (addr + 4) & 0xFFFC;
522 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
523 
 
524 
    //-------------------------------------------------------------------------- first read
525 
    int int_ret = is_io_ignored(addr1, byteena1 & 0xF);
526 
    unsigned int data1 = 0xFFFFFFFF;
527 
 
528 
    if(int_ret == 0 || int_ret == 2) {
529 
        data1 = ((int_ret == 2)? 0xFFFF0000 : 0x00000000) | check_io_rd(addr1, byteena1 & 0xF);
530 
    }
531 
    //-------------------------------------------------------------------------- second read
532 
    unsigned long long data = data1;
533 
//printf("#bochs486_pc:inp() read_one %d\n", two_reads);
534 
    if(two_reads) {
535 
        int_ret = is_io_ignored(addr2, byteena2 & 0xF);
536 
        unsigned int data2 = 0xFFFFFFFF;
537 
 
538 
        if(int_ret == 0 || int_ret == 2) {
539 
            data2 = ((int_ret == 2)? 0xFFFF0000 : 0x00000000) | check_io_rd(addr2, byteena2 & 0xF);
540 
        }
541 
        data = ((unsigned long long)data2 << 32) | data1;
542 
    }
543 
 
544 
    while((byteena1 & 1) == 0) {
545 
        byteena1 >>= 1;
546 
        data >>= 8;
547 
    }
548 
    Bit32u ret_val = (io_len == 1)? (data & 0xFFL) : (io_len == 2)? (data & 0xFFFFL) : (io_len == 3)? (data & 0xFFFFFFL) : (data & 0xFFFFFFFFL);
549 
printf("#bochs486_pc:inp(%04x, %d, =%08x)\n", addr, io_len, ret_val);
550 
    return ret_val;
551 
}
552 
 
553 
  void BX_CPP_AttrRegparmN(3)
554 
bx_devices_c::outp(Bit16u addr, Bit32u value, unsigned io_len) {
555 
printf("#bochs486_pc:outp(%04x, %d, %08x)\n", addr, io_len, value);
556 
    // write aligned to 4 bytes, with byteena
557 
 
558 
    bool two_writes = (addr & 0x3) + io_len > 4;
559 
 
560 
    Bit16u   addr1    = addr & 0xFFFC;
561 
    unsigned byteena1 = (io_len == 1)? 0x1 : (io_len == 2)? 0x3 : (io_len == 3)? 0x7 : 0xF;
562 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
563 
 
564 
    Bit16u   addr2    = (addr + 4) & 0xFFFC;
565 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
566 
 
567 
    if(io_len == 1) value &= 0x000000FF;
568 
    if(io_len == 2) value &= 0x0000FFFF;
569 
    if(io_len == 3) value &= 0x00FFFFFF;
570 
 
571 
    Bit64u value_full = ((addr & 0x3) == 0)? (Bit64u)value : ((addr & 0x3) == 1)? ((Bit64u)value << 8) : ((addr & 0x3) == 2)? ((Bit64u)value << 16) : ((Bit64u)value << 24);
572 
    Bit32u value1 = value_full;
573 
    Bit32u value2   = (value_full >> 32);
574 
 
575 
    //-------------------------------------------------------------------------- first write
576 
    int int_ret = is_io_ignored(addr1, byteena1 & 0xF);
577 
 
578 
    if(int_ret == 0 || int_ret == 2) {
579 
        check_io_wr(addr1, byteena1 & 0xF, value1);
580 
    }
581 
//printf("#bochs486_pc:outp() write_one %d\n", two_writes);
582 
    //-------------------------------------------------------------------------- second write
583 
 
584 
    if(two_writes) {
585 
        int_ret = is_io_ignored(addr2, byteena2 & 0xF);
586 
 
587 
        if(int_ret == 0 || int_ret == 2) {
588 
            check_io_wr(addr2, byteena2 & 0xF, value2);
589 
        }
590 
    }
591 
//printf("#bochs486_pc:outp() write_two\n");
592 
}
593 
 
594 
bx_devices_c::bx_devices_c() {
595 
    pluginPicDevice = new bochs486_pic();
596 
}
597 
 
598 
bx_devices_c::~bx_devices_c() {
599 
}
600 
 
601 
bx_devices_c bx_devices;
602 
 
603 
//------------------------------------------------------------------------------
604 
//------------------------------------------------------------------------------
605 
//------------------------------------------------------------------------------ memory
606 
 
607 
void BX_MEM_C::writePhysicalPage(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {
608 
printf("#bochs486_reader: writePhysicalPage: addr=%08x, len=%d ", addr, len);
609 
for(unsigned i=0; i<len; i++) printf("%02x ", ((uint8 *)data)[i]); printf("\n");
610 
 
611 
    addr &= 0x07FFFFFF;
612 
 
613 
    if(len > 4) {
614 
        printf("#bochs486_pc: writePhysicalPage() with len = %d\n", len);
615 
        exit(-1);
616 
    }
617 
 
618 
    bool two_writes = (addr & 0x3) + len > 4;
619 
 
620 
    Bit32u   addr1    = addr & 0xFFFFFFFC;
621 
    unsigned byteena1 = (len == 1)? 0x1 : (len == 2)? 0x3 : (len == 3)? 0x7 : 0xF;
622 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
623 
 
624 
    Bit32u   addr2    = (addr + 4) & 0xFFFFFFFC;
625 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
626 
 
627 
    Bit32u value = ((unsigned int *)data)[0];
628 
    if(len == 1) value &= 0x000000FF;
629 
    if(len == 2) value &= 0x0000FFFF;
630 
    if(len == 3) value &= 0x00FFFFFF;
631 
 
632 
    Bit64u value_full = ((addr & 0x3) == 0)? (Bit64u)value : ((addr & 0x3) == 1)? ((Bit64u)value << 8) : ((addr & 0x3) == 2)? ((Bit64u)value << 16) : ((Bit64u)value << 24);
633 
    Bit32u value1 = value_full;
634 
    Bit32u value2   = (value_full >> 32);
635 
 
636 
    //-------------------------------------------------------------------------- first write
637 
    check_mem_wr(addr1, byteena1 & 0xF, value1);
638 
 
639 
//printf("#bochs486_pc: writePhysicalPage: write_one, %d\n", two_writes);
640 
    if(two_writes) {
641 
        //---------------------------------------------------------------------- second write
642 
        check_mem_wr(addr2, byteena2 & 0xF, value2);
643 
    }
644 
//printf("#bochs486_pc: writePhysicalPage: write_two\n");
645 
}
646 
 
647 
void BX_MEM_C::readPhysicalPage(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {
648 
printf("#bochs486_pc: readPhysicalPage: addr=%08x, len=%d\n", addr, len);
649 
 
650 
        if(addr >= 0xFFFFF000) addr &= 0x000FFFFF;
651 
        addr &= 0x07FFFFFF;
652 
 
653 
    if(len == 4096) {
654 
        if((addr & 3) != 0) {
655 
            printf("#bochs486_pc: readPhysicalPage() with len = 4096 and addr not aligned to 4.\n");
656 
            exit(-1);
657 
        }
658 
 
659 
        if(addr >= 0xA0000 && addr <= 0xBFFFF) {
660 
            printf("#bochs486_pc: readPhysicalPage() with len = 4096 and addr in vga buffer.\n");
661 
            fflush(stdout);
662 
            exit(-1);
663 
        }
664 
 
665 
        memcpy((unsigned char *)data, (void *)(check_memory.bytes + addr), len);
666 
        return;
667 
    }
668 
 
669 
    //check if read crosses line boundry (16 bytes)
670 
    if( ((addr) & 0xFFFFFFF0) != ((addr + len - 1) & 0xFFFFFFF0) ) {
671 
        unsigned char *ptr = (unsigned char*)data;
672 
        readPhysicalPage(cpu, addr,             (addr | 0xF) - addr + 1,       ptr);
673 
        readPhysicalPage(cpu, (addr | 0xF) + 1, len - (addr | 0xF) + addr - 1, ptr + ((addr | 0xF) - addr + 1));
674 
        return;
675 
    }
676 
 
677 
    if(addr < 0xA0000 || addr > 0xBFFFF) {
678 
        memcpy((unsigned char *)data, (void *)(check_memory.bytes + addr), len);
679 
uint32 *val = (uint32 *)data;
680 
printf("read: %08x %08x\n", val[0], (len > 4)? val[1] : 0);
681 
        return;
682 
    }
683 
//printf("#bochs486_pc: readPhysicalPage: vga read.\n");
684 
    bool two_reads   = ((addr & 0x3) + len > 4) && ((addr & 0x3) + len <= 8);
685 
    bool three_reads = ((addr & 0x3) + len > 8);
686 
 
687 
    Bit32u   addr1    = addr & 0xFFFFFFFC;
688 
    unsigned byteena1 = (len == 1)? 0x1 : (len == 2)? 0x3 : (len == 3)? 0x7 : 0xF;
689 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
690 
 
691 
    Bit32u   addr2    = (addr + 4) & 0xFFFFFFFC;
692 
    Bit32u   addr3    = (addr + 8) & 0xFFFFFFFC;
693 
 
694 
    if(two_reads || three_reads) byteena1 = 0xF;
695 
    byteena1 &= 0xF;
696 
 
697 
    //-------------------------------------------------------------------------- first read
698 
    unsigned int data_read[3] = { 0,0,0 };
699 
 
700 
    data_read[0] = check_mem_rd(addr1, byteena1 & 0xF);
701 
 
702 
    if(two_reads || three_reads) {
703 
        //---------------------------------------------------------------------- second read
704 
        data_read[1] = check_mem_rd(addr2, 0xF);
705 
 
706 
        if(three_reads) {
707 
            //------------------------------------------------------------------ third read
708 
            data_read[2] = check_mem_rd(addr3, 0xF);
709 
        }
710 
    }
711 
 
712 
    unsigned char *ptr = (unsigned char *)data_read;
713 
 
714 
    for(int i=0; i<(addr & 0x3); i++) ptr++;
715 
 
716 
    memcpy((unsigned char *)data, ptr, len);
717 
}
718 
 
719 
Bit8u *BX_MEM_C::getHostMemAddr(BX_CPU_C *cpu, bx_phy_address addr, unsigned rw) {
720 
//printf("#bochs486_pc: getHostMemAddr: addr=%08x, rw=%d\n", addr, rw);
721 
 
722 
    if(addr >= 0xA0000 && addr < 0xC0000) return NULL;
723 
    if(rw != BX_EXECUTE) return NULL;
724 
 
725 
    if(addr >= 0xFFFFF000) addr &= 0x000FFFFF;
726 
    addr &= 0x07FFFFFF;
727 
 
728 
    return (Bit8u *)(check_memory.bytes + addr);
729 
}
730 
BX_MEM_C::BX_MEM_C() {
731 
}
732 
BX_MEM_C::~BX_MEM_C() {
733 
}
734 
 
735 
BOCHSAPI BX_MEM_C bx_mem;
736 
 
737 
//------------------------------------------------------------------------------
738 
//------------------------------------------------------------------------------
739 
//------------------------------------------------------------------------------ interrupt
740 
 
741 
void print_segment(bx_segment_reg_t *seg, const char *prefix) {
742 
 
743 
    printf("%s: %04x ",    prefix, seg->selector.value);
744 
    printf("val: %01x ",   seg->cache.valid & 1);
745 
    printf("rpl: %01hhx ", seg->selector.rpl);
746 
    printf("base: %08x ",  seg->cache.u.segment.base);
747 
    printf("limit: %08x ", (seg->cache.u.segment.g)? seg->cache.u.segment.limit_scaled >> 12 : seg->cache.u.segment.limit_scaled);
748 
    printf("g: %01x ",     seg->cache.u.segment.g);
749 
    printf("d_b: %01x ",   seg->cache.u.segment.d_b);
750 
    printf("avl: %01x ",   seg->cache.u.segment.avl);
751 
    printf("p: %01x ",     seg->cache.p);
752 
    printf("dpl: %01x ",   seg->cache.dpl);
753 
    printf("s: %01x ",     seg->cache.segment);
754 
    printf("type: %01x\n", seg->cache.type);
755 
}
756 
 
757 
void output_cpu_state() {
758 
    printf("eax: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EAX));
759 
    printf("ebx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EBX));
760 
    printf("ecx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_ECX));
761 
    printf("edx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EDX));
762 
    printf("esi: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_ESI));
763 
    printf("edi: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EDI));
764 
    printf("ebp: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EBP));
765 
    printf("esp: %08x\n", bx_cpu.get_reg32(BX_32BIT_REG_ESP));
766 
 
767 
    printf("eip: %08x\n", bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx);
768 
 
769 
    printf("cflag:  %01x ", bx_cpu.getB_CF());
770 
    printf("pflag:  %01x ", bx_cpu.getB_PF());
771 
    printf("aflag:  %01x ", bx_cpu.getB_AF());
772 
    printf("zflag:  %01x ", bx_cpu.getB_ZF());
773 
    printf("sflag:  %01x ", bx_cpu.getB_SF());
774 
    printf("tflag:  %01x ", bx_cpu.getB_TF()&1);
775 
    printf("iflag:  %01x ", bx_cpu.getB_IF()&1);
776 
    printf("dflag:  %01x ", bx_cpu.getB_DF()&1);
777 
    printf("oflag:  %01x ", bx_cpu.getB_OF()&1);
778 
    printf("iopl:   %01x ", bx_cpu.get_IOPL()&3);
779 
    printf("ntflag: %01x ", bx_cpu.getB_NT()&1);
780 
    printf("rflag:  %01x ", bx_cpu.getB_RF()&1);
781 
    printf("vmflag: %01x ", bx_cpu.getB_VM()&1);
782 
    printf("acflag: %01x ", bx_cpu.getB_AC()&1);
783 
    printf("idflag: %01x\n", bx_cpu.getB_ID()&1);
784 
 
785 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_CS]), "cs");
786 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_DS]), "ds");
787 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_ES]), "es");
788 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_FS]), "fs");
789 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_GS]), "gs");
790 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_SS]), "ss");
791 
    print_segment(&(bx_cpu.ldtr), "ldtr");
792 
    print_segment(&(bx_cpu.tr),   "tr");
793 
 
794 
    printf("gdtr_base:  %08x ", bx_cpu.gdtr.base);
795 
    printf("gdtr_limit: %02x\n", bx_cpu.gdtr.limit & 0xFFFF);
796 
 
797 
    printf("idtr_base:  %08x ", bx_cpu.idtr.base);
798 
    printf("idtr_limit: %02x\n", bx_cpu.idtr.limit & 0xFFFF);
799 
 
800 
    printf("cr0_pe: %01x ", bx_cpu.cr0.get_PE() & 1);
801 
    printf("cr0_mp: %01x ", bx_cpu.cr0.get_MP() & 1);
802 
    printf("cr0_em: %01x ", bx_cpu.cr0.get_EM() & 1);
803 
    printf("cr0_ts: %01x ", bx_cpu.cr0.get_TS() & 1);
804 
    printf("cr0_ne: %01x ", bx_cpu.cr0.get_NE() & 1);
805 
    printf("cr0_wp: %01x ", bx_cpu.cr0.get_WP() & 1);
806 
    printf("cr0_am: %01x ", bx_cpu.cr0.get_AM() & 1);
807 
    printf("cr0_nw: %01x ", bx_cpu.cr0.get_NW() & 1);
808 
    printf("cr0_cd: %01x ", bx_cpu.cr0.get_CD() & 1);
809 
    printf("cr0_pg: %01x\n", bx_cpu.cr0.get_PG() & 1);
810 
 
811 
    printf("cr2: %08x ", bx_cpu.cr2);
812 
    printf("cr3: %08x\n", bx_cpu.cr3);
813 
 
814 
    printf("dr0: %08x ", bx_cpu.dr[0]);
815 
    printf("dr1: %08x ", bx_cpu.dr[1]);
816 
    printf("dr2: %08x ", bx_cpu.dr[2]);
817 
    printf("dr3: %08x ", bx_cpu.dr[3]);
818 
 
819 
    printf("dr6: %08x ", bx_cpu.dr6.val32);
820 
    printf("dr7: %08x\n", bx_cpu.dr7.val32);
821 
 
822 
    fflush(stdout);
823 
}
824 
 
825 
uint32 seg_word_1(bx_segment_reg_t *seg) {
826 
    return  (seg->cache.u.segment.base & 0xFF000000) |
827 
            (seg->cache.u.segment.g?   0x00800000 : 0x00) |
828 
            (seg->cache.u.segment.d_b? 0x00400000 : 0x00) |
829 
            (seg->cache.u.segment.avl? 0x00100000 : 0x00) |
830 
            (((seg->cache.u.segment.limit_scaled >> (seg->cache.u.segment.g? 12 : 0)) << 16) & 0xF) |
831 
            (seg->cache.p?   0x00008000 : 0x0) |
832 
            ((seg->cache.dpl & 0x3) << 13) |
833 
            ((seg->cache.segment & 0x1) << 12) |
834 
            ((seg->cache.type & 0xF) << 8) |
835 
            ((seg->cache.u.segment.base >> 16) & 0xFF);
836 
}
837 
 
838 
uint32 seg_word_2(bx_segment_reg_t *seg) {
839 
    return ((seg->cache.u.segment.base & 0xFFFF) << 16) |
840 
           ((seg->cache.u.segment.limit_scaled >> (seg->cache.u.segment.g? 12 : 0)) & 0xFFFF);
841 
}
842 
 
843 
//------------------------------------------------------------------------------
844 
//------------------------------------------------------------------------------
845 
//------------------------------------------------------------------------------ instrument
846 
 
847 
bool bochs486_skip_rep_finish = false;
848 
 
849 
 
850 
void bx_instr_init_env(void) { }
851 
void bx_instr_exit_env(void) { }
852 
 
853 
void bx_instr_debug_promt() { }
854 
void bx_instr_debug_cmd(const char *cmd) { }
855 
 
856 
void bx_instr_cnear_branch_taken(unsigned cpu, bx_address branch_eip, bx_address new_eip) { }
857 
void bx_instr_cnear_branch_not_taken(unsigned cpu, bx_address branch_eip) { }
858 
void bx_instr_ucnear_branch(unsigned cpu, unsigned what, bx_address branch_eip, bx_address new_eip) { }
859 
void bx_instr_far_branch(unsigned cpu, unsigned what, Bit16u new_cs, bx_address new_eip) { }
860 
 
861 
void bx_instr_opcode(unsigned cpu, bxInstruction_c *i, const Bit8u *opcode, unsigned len, bx_bool is32, bx_bool is64) { }
862 
 
863 
void bx_instr_exception(unsigned cpu, unsigned vector, unsigned error_code) { }
864 
void bx_instr_hwinterrupt(unsigned cpu, unsigned vector, Bit16u cs, bx_address eip) { }
865 
 
866 
void bx_instr_tlb_cntrl(unsigned cpu, unsigned what, bx_phy_address new_cr3) { }
867 
void bx_instr_cache_cntrl(unsigned cpu, unsigned what) { }
868 
void bx_instr_prefetch_hint(unsigned cpu, unsigned what, unsigned seg, bx_address offset) { }
869 
void bx_instr_clflush(unsigned cpu, bx_address laddr, bx_phy_address paddr) { }
870 
 
871 
void bx_instr_initialize(unsigned cpu) { }
872 
void bx_instr_exit(unsigned cpu) { }
873 
void bx_instr_reset(unsigned cpu, unsigned type) { }
874 
 
875 
void bx_instr_inp(Bit16u addr, unsigned len) { }
876 
void bx_instr_inp2(Bit16u addr, unsigned len, unsigned val) { }
877 
void bx_instr_outp(Bit16u addr, unsigned len, unsigned val) { }
878 
 
879 
void bx_instr_lin_access(unsigned cpu, bx_address lin, bx_address phy, unsigned len, unsigned rw) { }
880 
void bx_instr_phy_access(unsigned cpu, bx_address phy, unsigned len, unsigned rw) { }
881 
 
882 
void bx_instr_wrmsr(unsigned cpu, unsigned addr, Bit64u value) { }
883 
 
884 
 
885 
//uint32 check_next_irq_at = 0;
886 
//uint32 check_next_irq_vector = 0;
887 
 
888 
bool intr_pending = false;
889 
bool double_exception = false;
890 
 
891 
void bx_instr_interrupt(unsigned cpu, unsigned vector, unsigned type, bx_bool push_error, Bit16u error_code) {
892 
 
893 
    bochs486_skip_rep_finish = false;
894 
    if(type == BX_EXTERNAL_INTERRUPT) intr_pending = false;
895 
 
896 
    if(type == BX_HARDWARE_EXCEPTION || type == BX_EXTERNAL_INTERRUPT) {
897 
        printf("bx_instr_interrupt(%d): %02x at %d\n", type, vector, instr_counter);
898 
        if(double_exception == false) instr_counter++;
899 
        else {
900 
            fprintf(stderr, "double exception: type: %d\n", type);
901 
        }
902 
        double_exception = true;
903 
 
904 
        if(instr_counter == check_next_irq_at) {
905 
            interrupt_vector = check_next_irq_vector;
906 
printf("raise_INTR(): %02x at %d\n", interrupt_vector, instr_counter);
907 
            bx_cpu.raise_INTR();
908 
            intr_pending = true;
909 
        }
910 
        else if(intr_pending && check_next_irq_at == 0) {
911 
printf("clear_INTR() at %d\n", instr_counter);
912 
            bx_cpu.clear_INTR();
913 
            intr_pending = false;
914 
        }
915 
    }
916 
}
917 
 
918 
void instr_after_execution() {
919 
 
920 
    instr_counter++;
921 
 
922 
bx_cpu.TLB_flush();
923 
 
924 
    if(instr_counter > 0) {
925 
        output_cpu_state();
926 
    }
927 
//if(instr_counter > 11491275) exit(0);
928 
 
929 
    if(instr_counter == check_next_irq_at) {
930 
        interrupt_vector = check_next_irq_vector;
931 
printf("raise_INTR(): %02x at %d\n", interrupt_vector, instr_counter);
932 
        bx_cpu.raise_INTR();
933 
        intr_pending = true;
934 
    }
935 
    else if(intr_pending && check_next_irq_at == 0) {
936 
printf("clear_INTR() at %d\n", instr_counter);
937 
        bx_cpu.clear_INTR();
938 
        intr_pending = false;
939 
    }
940 
 
941 
}
942 
 
943 
void bx_instr_before_execution(unsigned cpu, bxInstruction_c *i) {
944 
    double_exception = false;
945 
//printf("cs: %04x eip: %08x len: %d op: %02x\n", bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, i->ilen(), i->bochs486_opcode);
946 
 
947 
}
948 
 
949 
void bx_instr_after_execution(unsigned cpu, bxInstruction_c *i) {
950 
//printf("AFT cs: %04x eip: %08x len: %d op: %02x\n", bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, i->ilen(), i->bochs486_opcode);
951 
 
952 
    if(bochs486_skip_rep_finish) {
953 
        printf("#bx_instr_after_execution: bochs486_skip_rep_finished at %d\n", instr_counter);
954 
        bochs486_skip_rep_finish = false;
955 
        return;
956 
    }
957 
 
958 
printf("#instr: %02x %d\n", i->bochs486_opcode, instr_counter);
959 
    instr_after_execution();
960 
}
961 
void bx_instr_repeat_iteration(unsigned cpu, bxInstruction_c *i) {
962 
    bochs486_skip_rep_finish = true;
963 
 
964 
printf("#repeat: %d\n", instr_counter);
965 
    instr_after_execution();
966 
}
967 
void bx_instr_hlt(unsigned cpu) {
968 
    instr_after_execution();
969 
}
970 
 
971 
void bx_instr_mwait(unsigned cpu, bx_phy_address addr, unsigned len, Bit32u flags) { }
972 
 
973 
// memory trace callbacks from CPU, len=1,2,4 or 8
974 
void bx_dbg_lin_memory_access(unsigned cpu, bx_address lin, bx_phy_address phy, unsigned len, unsigned pl, unsigned rw, Bit8u *data) {
975 
}
976 
void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, unsigned attr, Bit8u *data) {
977 
}
978 
 
979 
//------------------------------------------------------------------------------
980 
//------------------------------------------------------------------------------
981 
//------------------------------------------------------------------------------ main
982 
 
983 
int main(int argc, char **argv) {
984 
 
985 
    load_file("./../sd/bios/bochs_legacy",    0xF0000);
986 
    load_file("./../sd/vgabios/vgabios_lgpl", 0xC0000);
987 
 
988 
    bx_pc_system.a20_mask = 0xFFFFFFFF;
989 
 
990 
    SIM = new bochs486_sim();
991 
 
992 
    bx_cpu.initialize();
993 
    bx_cpu.reset(BX_RESET_HARDWARE);
994 
 
995 
    printf("START\n");
996 
    bx_cpu.gen_reg[BX_32BIT_REG_EDX].dword.erx = 0x0000045b; //after reset EDX value
997 
    instr_counter++; //ao486 has extra instruction at 0xFFFFFFF0
998 
 
999 
    bx_cpu.async_event = 0;
1000 
    bx_cpu.handleCpuModeChange();
1001 
 
1002 
    bx_cpu.cpu_loop();
1003 
 
1004 
    printf("#bochs486_pc: finishing.\n");
1005 
 
1006 
    return 0;
1007 
}

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