OpenCores
URL https://opencores.org/ocsvn/ao486/ao486/trunk

Subversion Repositories ao486

[/] [ao486/] [trunk/] [bochs486/] [main_plugin.cpp] - Blame information for rev 6

Go to most recent revision | Details | Compare with Previous | View Log

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 
#include "shared_mem.h"
15 
 
16 
//------------------------------------------------------------------------------
17 
//------------------------------------------------------------------------------
18 
//------------------------------------------------------------------------------
19 
 
20 
volatile shared_mem_t *shared_ptr = NULL;
21 
 
22 
//------------------------------------------------------------------------------
23 
//------------------------------------------------------------------------------
24 
//------------------------------------------------------------------------------ logfunctions
25 
 
26 
void logfunctions::panic(const char *fmt, ...) {
27 
    printf("#bochs486_pc::logfunctions::panic(): ");
28 
 
29 
    va_list ap;
30 
    va_start(ap, fmt);
31 
    vprintf(fmt, ap);
32 
    va_end(ap);
33 
 
34 
    printf("\n");
35 
    fflush(stdout);
36 
 
37 
    if(strstr(fmt, "exception with no resolution") != NULL) {
38 
        printf("start_shutdown: 0\n");
39 
        printf("\n");
40 
        fflush(stdout);
41 
        exit(0);
42 
    }
43 
    else {
44 
        exit(-1);
45 
    }
46 
}
47 
void logfunctions::error(const char *fmt, ...) {
48 
    printf("#bochs486_pc::logfunctions::error(): ");
49 
 
50 
    va_list ap;
51 
    va_start(ap, fmt);
52 
    vprintf(fmt, ap);
53 
    va_end(ap);
54 
 
55 
    printf("\n");
56 
    fflush(stdout);
57 
}
58 
void logfunctions::ldebug(const char *fmt, ...) {
59 
    printf("#bochs486_pc::logfunctions::debug(): ");
60 
 
61 
    va_list ap;
62 
    va_start(ap, fmt);
63 
    vprintf(fmt, ap);
64 
    va_end(ap);
65 
 
66 
    printf("\n");
67 
    fflush(stdout);
68 
}
69 
void logfunctions::info(const char *fmt, ...) {
70 
    printf("#bochs486_pc::logfunctions::info(): ");
71 
 
72 
    va_list ap;
73 
    va_start(ap, fmt);
74 
    vprintf(fmt, ap);
75 
    va_end(ap);
76 
 
77 
    printf("\n");
78 
    fflush(stdout);
79 
}
80 
void logfunctions::put(const char *n, const char *p) {
81 
}
82 
logfunctions::logfunctions() {
83 
}
84 
logfunctions::~logfunctions() {
85 
}
86 
 
87 
static logfunctions theLog;
88 
logfunctions *pluginlog         = &theLog;
89 
logfunctions *siminterface_log  = &theLog;
90 
 
91 
//------------------------------------------------------------------------------
92 
//------------------------------------------------------------------------------
93 
//------------------------------------------------------------------------------ menu
94 
 
95 
void bx_param_string_c::text_print(FILE *fp) {
96 
printf("#bochs486_pc::bx_param_string_c::text_print()\n");
97 
}
98 
void bx_param_enum_c::text_print(FILE *fp) {
99 
printf("#bochs486_pc::bx_param_enum_c::text_print()\n");
100 
}
101 
void bx_param_bool_c::text_print(FILE *fp) {
102 
printf("#bochs486_pc::bx_param_bool_c::text_print()\n");
103 
}
104 
void bx_param_num_c::text_print(FILE *fp) {
105 
printf("#bochs486_pc::bx_param_num_c::text_print()\n");
106 
}
107 
void bx_list_c::text_print(FILE *fp) {
108 
printf("#bochs486_pc::bx_list_c::text_print()\n");
109 
}
110 
int bx_param_enum_c::text_ask(FILE *fpin, FILE *fpout) {
111 
printf("#bochs486_pc::bx_param_enum_c::text_ask()\n");
112 
    return 0;
113 
}
114 
int bx_param_bool_c::text_ask(FILE *fpin, FILE *fpout) {
115 
printf("#bochs486_pc::bx_param_bool_c::text_ask()\n");
116 
    return 0;
117 
}
118 
int bx_param_num_c::text_ask(FILE *fpin, FILE *fpout) {
119 
printf("#bochs486_pc::bx_param_num_c::text_ask()\n");
120 
    return 0;
121 
}
122 
int bx_param_string_c::text_ask(FILE *fpin, FILE *fpout) {
123 
printf("#bochs486_pc::bx_param_string_c::text_ask()\n");
124 
    return 0;
125 
}
126 
int bx_list_c::text_ask(FILE *fpin, FILE *fpout) {
127 
printf("#bochs486_pc::bx_list_c::text_ask()\n");
128 
    return 0;
129 
}
130 
 
131 
bx_list_c *root_param = NULL;
132 
 
133 
bx_gui_c *bx_gui = NULL;
134 
 
135 
//------------------------------------------------------------------------------
136 
//------------------------------------------------------------------------------
137 
//------------------------------------------------------------------------------ cpu
138 
 
139 
void BX_CPU_C::enter_system_management_mode(void) {
140 
printf("#bochs486_pc: enter_system_management_mod()\n");
141 
}
142 
void BX_CPU_C::init_SMRAM(void) {
143 
printf("#bochs486_pc: init_SMRAM()\n");
144 
}
145 
void BX_CPU_C::debug(bx_address offset) {
146 
printf("#bochs486_pc: debug(offset=%08x)\n", offset);
147 
}
148 
void BX_CPU_C::debug_disasm_instruction(bx_address offset) {
149 
printf("#bochs486_pc: debug_disasm_instruction(offset=%08x)\n", offset);
150 
}
151 
 
152 
//------------------------------------------------------------------------------
153 
//------------------------------------------------------------------------------
154 
//------------------------------------------------------------------------------ pc_system
155 
 
156 
void bx_pc_system_c::countdownEvent(void) {
157 
}
158 
bx_pc_system_c::bx_pc_system_c() {
159 
}
160 
int bx_pc_system_c::Reset(unsigned type) {
161 
    printf("#bochs486_pc: bx_pc_system_c::Reset(%d) unimplemented.\n", type);
162 
    std::exit(-1);
163 
}
164 
 
165 
bx_pc_system_c bx_pc_system;
166 
 
167 
const char* cpu_mode_string(unsigned cpu_mode) {
168 
  static const char *cpu_mode_name[] = {
169 
     "real mode",
170 
     "v8086 mode",
171 
     "protected mode",
172 
     "compatibility mode",
173 
     "long mode",
174 
     "unknown mode"
175 
  };
176 
 
177 
  if(cpu_mode >= 5) cpu_mode = 5;
178 
  return cpu_mode_name[cpu_mode];
179 
}
180 
 
181 
const char *choices[] = { "0_choice", NULL };
182 
 
183 
class bochs486_sim : public bx_simulator_interface_c {
184 
 
185 
    bx_param_bool_c *get_param_bool(const char *pname, bx_param_c *base) {
186 
        if(strcmp(pname, BXPN_CPUID_LIMIT_WINNT) == 0)      return new bx_param_bool_c(  NULL, "b0", "", "", 0);
187 
        if(strcmp(pname, BXPN_CPUID_SSE4A) == 0)            return new bx_param_bool_c(  NULL, "b1", "", "", 0);
188 
        if(strcmp(pname, BXPN_CPUID_SEP) == 0)              return new bx_param_bool_c(  NULL, "b2", "", "", 0);
189 
        if(strcmp(pname, BXPN_CPUID_XSAVE) == 0)            return new bx_param_bool_c(  NULL, "b3", "", "", 0);
190 
        if(strcmp(pname, BXPN_CPUID_XSAVEOPT) == 0)         return new bx_param_bool_c(  NULL, "b4", "", "", 0);
191 
        if(strcmp(pname, BXPN_CPUID_AES) == 0)              return new bx_param_bool_c(  NULL, "b5", "", "", 0);
192 
        if(strcmp(pname, BXPN_CPUID_MOVBE) == 0)            return new bx_param_bool_c(  NULL, "b6", "", "", 0);
193 
        if(strcmp(pname, BXPN_CPUID_SMEP) == 0)             return new bx_param_bool_c(  NULL, "b7", "", "", 0);
194 
        if(strcmp(pname, BXPN_RESET_ON_TRIPLE_FAULT) == 0)  return new bx_param_bool_c(  NULL, "b8", "", "", 0);
195 
        return NULL;
196 
    }
197 
    bx_param_string_c *get_param_string(const char *pname, bx_param_c *base) {
198 
        if(strcmp(pname, BXPN_VENDOR_STRING) == 0) return new bx_param_string_c(NULL, "s0", "", "", "GeniuneAO486");
199 
        if(strcmp(pname, BXPN_BRAND_STRING) == 0)  return new bx_param_string_c(NULL, "s1", "", "", "ao486                                           ");
200 
        return NULL;
201 
    }
202 
    bx_param_enum_c *get_param_enum(const char *pname, bx_param_c *base) {
203 
        if(strcmp(pname, BXPN_CPU_MODEL) == 0)  return new bx_param_enum_c(  NULL, "e0", "", "", choices, 0);
204 
        if(strcmp(pname, BXPN_CPUID_SSE) == 0)  return new bx_param_enum_c(  NULL, "e1", "", "", choices, 0);
205 
        return NULL;
206 
    }
207 
    bx_param_num_c *get_param_num(const char *pname, bx_param_c *base) {
208 
        if(strcmp(pname, BXPN_CPUID_STEPPING) == 0)  return new bx_param_num_c(   NULL, "n0", "", "", 0xB,0xB,0xB);
209 
        if(strcmp(pname, BXPN_CPUID_MODEL) == 0)     return new bx_param_num_c(   NULL, "n1", "", "", 0x5,0x5,0x5);
210 
        if(strcmp(pname, BXPN_CPUID_FAMILY) == 0)    return new bx_param_num_c(   NULL, "n2", "", "", 0x4,0x4,0x4);
211 
        if(strcmp(pname, BXPN_CPUID_LEVEL) == 0)     return new bx_param_num_c(   NULL, "n3", "", "", 0x4,0x4,0x4);
212 
        return NULL;
213 
    }
214 
};
215 
 
216 
bx_simulator_interface_c *SIM;
217 
 
218 
BOCHSAPI BX_CPU_C bx_cpu;
219 
 
220 
//------------------------------------------------------------------------------
221 
//------------------------------------------------------------------------------
222 
//------------------------------------------------------------------------------ devices
223 
 
224 
class bochs486_pic : public bx_pic_stub_c {
225 
    Bit8u IAC(void) {
226 
 
227 
        uint32 vec = shared_ptr->irq_do_vector;
228 
 
229 
        shared_ptr->irq_done_vector = vec;
230 
        shared_ptr->irq_done = STEP_REQ;
231 
 
232 
        const char *txt = "";
233 
 
234 
        if(shared_ptr->irq_do == STEP_IDLE)     txt = "-spurIDLE";
235 
        else if(shared_ptr->irq_do == STEP_ACK) txt = "-spurACK";
236 
 
237 
        FILE *fp = fopen("track.txt", "a");
238 
        fprintf(fp, "IAC%s 0x%02x at %d; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", txt, vec, shared_ptr->bochs486_pc.instr_counter,
239 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
240 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
241 
        fclose(fp);
242 
 
243 
        fp = fopen("interrupt.txt", "a");
244 
        fprintf(fp, "IAC%s 0x%02x at %d; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", txt, vec, shared_ptr->bochs486_pc.instr_counter,
245 
            bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
246 
            bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
247 
        fclose(fp);
248 
 
249 
        shared_ptr->irq_do = STEP_ACK;
250 
 
251 
        bx_cpu.clear_INTR();
252 
        return vec & 0xFF;
253 
    }
254 
 
255 
};
256 
 
257 
int is_io_ignored(Bit16u address, Bit32u byteena) {
258 
 
259 
    bool read_ff =
260 
            (address >= 0x0010 && address < 0x0020)     ||
261 
            (address == 0x0020 && (byteena & 0x3) == 0) ||
262 
            (address >= 0x0024 &&  address < 0x0040)    ||
263 
            (address >= 0x0044 &&  address < 0x0060)    ||
264 
            (address >= 0x0068 &&  address < 0x0070)    ||
265 
            (address == 0x0070 && (byteena & 0x3) == 0) ||
266 
            (address >= 0x0074 &&  address < 0x0080)    ||
267 
            (address == 0x00A0 && (byteena & 0x3) == 0) ||
268 
            (address >= 0x00A4 &&  address < 0x00C0)    ||
269 
            (address >= 0x00E0 &&  address < 0x01F0)    ||
270 
            (address >= 0x01F8 &&  address < 0x0220)    ||
271 
            (address >= 0x0230 &&  address < 0x0388)    ||
272 
            (address == 0x0388 && (byteena & 0x3) == 0) ||
273 
            (address >= 0x038C &&  address < 0x03B0)    ||
274 
            (address >= 0x03E0 &&  address < 0x03F0)    ||
275 
            (address >= 0x03F8 &&  address < 0x8888)    ||
276 
            (address >= 0x8890);
277 
 
278 
    bool read_ff_part =
279 
            (address == 0x0020) ||
280 
            (address == 0x0070) ||
281 
            (address == 0x00A0) ||
282 
            (address == 0x0388);
283 
 
284 
    if(read_ff)         return 1;
285 
    if(read_ff_part)    return 2;
286 
    return 0;
287 
}
288 
 
289 
  Bit32u BX_CPP_AttrRegparmN(2)
290 
bx_devices_c::inp(Bit16u addr, unsigned io_len) {
291 
//printf("#bochs486_pc:inp(%04x, %d)\n", addr, io_len);
292 
    // read aligned to 4 bytes, with byteena
293 
 
294 
    bool two_reads = (addr & 0x3) + io_len > 4;
295 
 
296 
    Bit16u   addr1    = addr & 0xFFFC;
297 
    unsigned byteena1 = (io_len == 1)? 0x1 : (io_len == 2)? 0x3 : (io_len == 3)? 0x7 : 0xF;
298 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
299 
 
300 
    Bit16u   addr2    = (addr + 4) & 0xFFFC;
301 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
302 
 
303 
    //-------------------------------------------------------------------------- first read
304 
    int int_ret = is_io_ignored(addr1, byteena1 & 0xF);
305 
    unsigned int data1 = 0xFFFFFFFF;
306 
 
307 
    if(int_ret == 0 || int_ret == 2) {
308 
        shared_ptr->bochs486_pc.io_address    = addr1;
309 
        shared_ptr->bochs486_pc.io_byteenable = byteena1 & 0xF;
310 
        shared_ptr->bochs486_pc.io_is_write   = 0;
311 
        shared_ptr->bochs486_pc.io_step       = STEP_REQ;
312 
        while(shared_ptr->bochs486_pc.io_step != STEP_ACK) {
313 
            fflush(stdout);
314 
            usleep(10);
315 
        }
316 
        data1 = ((int_ret == 2)? 0xFFFF0000 : 0x00000000) | shared_ptr->bochs486_pc.io_data;
317 
 
318 
        FILE *fp = fopen("track.txt", "a");
319 
        fprintf(fp, "io rd %04x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr1, byteena1 & 0xF, data1,
320 
            bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
321 
            bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
322 
        fclose(fp);
323 
 
324 
        shared_ptr->bochs486_pc.io_step = STEP_IDLE;
325 
    }
326 
    //-------------------------------------------------------------------------- second read
327 
    unsigned long long data = data1;
328 
//printf("#bochs486_pc:inp() read_one %d\n", two_reads);
329 
    if(two_reads) {
330 
        int_ret = is_io_ignored(addr2, byteena2 & 0xF);
331 
        unsigned int data2 = 0xFFFFFFFF;
332 
 
333 
        if(int_ret == 0 || int_ret == 2) {
334 
            shared_ptr->bochs486_pc.io_address    = addr2;
335 
            shared_ptr->bochs486_pc.io_byteenable = byteena2 & 0xF;
336 
            shared_ptr->bochs486_pc.io_is_write   = 0;
337 
            shared_ptr->bochs486_pc.io_step       = STEP_REQ;
338 
            while(shared_ptr->bochs486_pc.io_step != STEP_ACK) {
339 
                fflush(stdout);
340 
                usleep(10);
341 
            }
342 
            data2 = ((int_ret == 2)? 0xFFFF0000 : 0x00000000) | shared_ptr->bochs486_pc.io_data;
343 
 
344 
            FILE *fp = fopen("track.txt", "a");
345 
            fprintf(fp, "io rd %04x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr2, byteena2 & 0xF, data2,
346 
                    bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
347 
                    bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
348 
            fclose(fp);
349 
 
350 
            shared_ptr->bochs486_pc.io_step = STEP_IDLE;
351 
        }
352 
 
353 
        data = ((unsigned long long)data2 << 32) | data1;
354 
    }
355 
 
356 
    while((byteena1 & 1) == 0) {
357 
        byteena1 >>= 1;
358 
        data >>= 8;
359 
    }
360 
    Bit32u ret_val = (io_len == 1)? (data & 0xFFL) : (io_len == 2)? (data & 0xFFFFL) : (io_len == 3)? (data & 0xFFFFFFL) : (data & 0xFFFFFFFFL);
361 
printf("#bochs486_pc:inp(%04x, %d, =%08x)\n", addr, io_len, ret_val);
362 
    return ret_val;
363 
}
364 
 
365 
  void BX_CPP_AttrRegparmN(3)
366 
bx_devices_c::outp(Bit16u addr, Bit32u value, unsigned io_len) {
367 
printf("#bochs486_pc:outp(%04x, %d, %08x)\n", addr, io_len, value);
368 
    // write aligned to 4 bytes, with byteena
369 
 
370 
    bool two_writes = (addr & 0x3) + io_len > 4;
371 
 
372 
    Bit16u   addr1    = addr & 0xFFFC;
373 
    unsigned byteena1 = (io_len == 1)? 0x1 : (io_len == 2)? 0x3 : (io_len == 3)? 0x7 : 0xF;
374 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
375 
 
376 
    Bit16u   addr2    = (addr + 4) & 0xFFFC;
377 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
378 
 
379 
    if(io_len == 1) value &= 0x000000FF;
380 
    if(io_len == 2) value &= 0x0000FFFF;
381 
    if(io_len == 3) value &= 0x00FFFFFF;
382 
 
383 
    Bit64u value_full = ((addr & 0x3) == 0)? (Bit64u)value : ((addr & 0x3) == 1)? ((Bit64u)value << 8) : ((addr & 0x3) == 2)? ((Bit64u)value << 16) : ((Bit64u)value << 24);
384 
    Bit32u value1 = value_full;
385 
    Bit32u value2   = (value_full >> 32);
386 
 
387 
    //-------------------------------------------------------------------------- first write
388 
    int int_ret = is_io_ignored(addr1, byteena1 & 0xF);
389 
 
390 
    if(int_ret == 0 || int_ret == 2) {
391 
        shared_ptr->bochs486_pc.io_address    = addr1;
392 
        shared_ptr->bochs486_pc.io_byteenable = byteena1 & 0xF;
393 
        shared_ptr->bochs486_pc.io_is_write   = 1;
394 
        shared_ptr->bochs486_pc.io_data       = value1;
395 
        shared_ptr->bochs486_pc.io_step       = STEP_REQ;
396 
        while(shared_ptr->bochs486_pc.io_step != STEP_ACK) {
397 
            fflush(stdout);
398 
            usleep(10);
399 
        }
400 
 
401 
        FILE *fp = fopen("track.txt", "a");
402 
        fprintf(fp, "io wr %04x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr1, byteena1 & 0xF, value1,
403 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
404 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
405 
        fclose(fp);
406 
 
407 
        shared_ptr->bochs486_pc.io_step = STEP_IDLE;
408 
    }
409 
//printf("#bochs486_pc:outp() write_one %d\n", two_writes);
410 
    //-------------------------------------------------------------------------- second write
411 
 
412 
    if(two_writes) {
413 
        int_ret = is_io_ignored(addr2, byteena2 & 0xF);
414 
 
415 
        if(int_ret == 0 || int_ret == 2) {
416 
            shared_ptr->bochs486_pc.io_address    = addr2;
417 
            shared_ptr->bochs486_pc.io_byteenable = byteena2 & 0xF;
418 
            shared_ptr->bochs486_pc.io_is_write   = 1;
419 
            shared_ptr->bochs486_pc.io_data       = value2;
420 
            shared_ptr->bochs486_pc.io_step       = STEP_REQ;
421 
            while(shared_ptr->bochs486_pc.io_step != STEP_ACK) {
422 
                fflush(stdout);
423 
                usleep(10);
424 
            }
425 
 
426 
            FILE *fp = fopen("track.txt", "a");
427 
            fprintf(fp, "io wr %04x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr2, byteena2 & 0xF, value2,
428 
                    bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
429 
                    bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
430 
            fclose(fp);
431 
 
432 
            shared_ptr->bochs486_pc.io_step = STEP_IDLE;
433 
        }
434 
    }
435 
//printf("#bochs486_pc:outp() write_two\n");
436 
}
437 
 
438 
bx_devices_c::bx_devices_c() {
439 
    pluginPicDevice = new bochs486_pic();
440 
}
441 
 
442 
bx_devices_c::~bx_devices_c() {
443 
}
444 
 
445 
bx_devices_c bx_devices;
446 
 
447 
//------------------------------------------------------------------------------
448 
//------------------------------------------------------------------------------
449 
//------------------------------------------------------------------------------ memory
450 
 
451 
void BX_MEM_C::writePhysicalPage(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {
452 
printf("#bochs486_pc: writePhysicalPage: addr=%08x, len=%d ", addr, len);
453 
for(unsigned i=0; i<len; i++) printf("%02x ", ((uint8 *)data)[i]); printf("\n");
454 
 
455 
    addr &= 0x07FFFFFF;
456 
 
457 
    if(len > 4) {
458 
        printf("#bochs486_pc: writePhysicalPage() with len = %d\n", len);
459 
        exit(-1);
460 
    }
461 
 
462 
    bool two_writes = (addr & 0x3) + len > 4;
463 
 
464 
    Bit32u   addr1    = addr & 0xFFFFFFFC;
465 
    unsigned byteena1 = (len == 1)? 0x1 : (len == 2)? 0x3 : (len == 3)? 0x7 : 0xF;
466 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
467 
 
468 
    Bit32u   addr2    = (addr + 4) & 0xFFFFFFFC;
469 
    unsigned byteena2 = (byteena1 >> 4) & 0xF;
470 
 
471 
    Bit32u value = ((unsigned int *)data)[0];
472 
    if(len == 1) value &= 0x000000FF;
473 
    if(len == 2) value &= 0x0000FFFF;
474 
    if(len == 3) value &= 0x00FFFFFF;
475 
 
476 
    Bit64u value_full = ((addr & 0x3) == 0)? (Bit64u)value : ((addr & 0x3) == 1)? ((Bit64u)value << 8) : ((addr & 0x3) == 2)? ((Bit64u)value << 16) : ((Bit64u)value << 24);
477 
    Bit32u value1 = value_full;
478 
    Bit32u value2   = (value_full >> 32);
479 
 
480 
    //-------------------------------------------------------------------------- first write
481 
    shared_ptr->bochs486_pc.mem_address    = addr1;
482 
    shared_ptr->bochs486_pc.mem_byteenable = byteena1 & 0xF;
483 
    shared_ptr->bochs486_pc.mem_is_write   = 1;
484 
    shared_ptr->bochs486_pc.mem_data       = value1;
485 
    shared_ptr->bochs486_pc.mem_step       = STEP_REQ;
486 
    while(shared_ptr->bochs486_pc.mem_step != STEP_ACK) {
487 
        fflush(stdout);
488 
        usleep(10);
489 
    }
490 
 
491 
    FILE *fp = fopen("track.txt", "a");
492 
    fprintf(fp, "mem wr %08x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr1, byteena1 & 0xF, value1,
493 
            bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
494 
            bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
495 
    fclose(fp);
496 
 
497 
    shared_ptr->bochs486_pc.mem_step = STEP_IDLE;
498 
 
499 
//printf("#bochs486_pc: writePhysicalPage: write_one, %d\n", two_writes);
500 
    if(two_writes) {
501 
        //---------------------------------------------------------------------- second write
502 
        shared_ptr->bochs486_pc.mem_address    = addr2;
503 
        shared_ptr->bochs486_pc.mem_byteenable = byteena2 & 0xF;
504 
        shared_ptr->bochs486_pc.mem_is_write   = 1;
505 
        shared_ptr->bochs486_pc.mem_data       = value2;
506 
        shared_ptr->bochs486_pc.mem_step       = STEP_REQ;
507 
        while(shared_ptr->bochs486_pc.mem_step != STEP_ACK) {
508 
            fflush(stdout);
509 
            usleep(10);
510 
        }
511 
 
512 
        FILE *fp = fopen("track.txt", "a");
513 
        fprintf(fp, "mem wr %08x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr2, byteena2 & 0xF, value2,
514 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
515 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
516 
        fclose(fp);
517 
 
518 
        shared_ptr->bochs486_pc.mem_step = STEP_IDLE;
519 
    }
520 
//printf("#bochs486_pc: writePhysicalPage: write_two\n");
521 
}
522 
 
523 
void BX_MEM_C::readPhysicalPage(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, void *data) {
524 
printf("#bochs486_pc: readPhysicalPage: addr=%08x, len=%d\n", addr, len);
525 
 
526 
        if(addr >= 0xFFFFF000) addr &= 0x000FFFFF;
527 
        addr &= 0x07FFFFFF;
528 
 
529 
    if(len == 4096) {
530 
        if((addr & 3) != 0) {
531 
            printf("#bochs486_pc: readPhysicalPage() with len = 4096 and addr not aligned to 4.\n");
532 
            exit(-1);
533 
        }
534 
 
535 
        if(addr >= 0xA0000 && addr <= 0xBFFFF) {
536 
            printf("#bochs486_pc: readPhysicalPage() with len = 4096 and addr in vga buffer.\n");
537 
            fflush(stdout); while(1) { ; }
538 
            exit(-1);
539 
        }
540 
 
541 
        memcpy((unsigned char *)data, (void *)(shared_ptr->mem.bytes + addr), len);
542 
        return;
543 
    }
544 
 
545 
    //check if read crosses line boundry (16 bytes)
546 
    if( ((addr) & 0xFFFFFFF0) != ((addr + len - 1) & 0xFFFFFFF0) ) {
547 
        unsigned char *ptr = (unsigned char*)data;
548 
        readPhysicalPage(cpu, addr,             (addr | 0xF) - addr + 1,       ptr);
549 
        readPhysicalPage(cpu, (addr | 0xF) + 1, len - (addr | 0xF) + addr - 1, ptr + ((addr | 0xF) - addr + 1));
550 
        return;
551 
    }
552 
 
553 
    if(addr < 0xA0000 || addr > 0xBFFFF) {
554 
        memcpy((unsigned char *)data, (void *)(shared_ptr->mem.bytes + addr), len);
555 
        return;
556 
    }
557 
//printf("#bochs486_pc: readPhysicalPage: vga read.\n");
558 
    bool two_reads   = ((addr & 0x3) + len > 4) && ((addr & 0x3) + len <= 8);
559 
    bool three_reads = ((addr & 0x3) + len > 8);
560 
 
561 
    Bit32u   addr1    = addr & 0xFFFFFFFC;
562 
    unsigned byteena1 = (len == 1)? 0x1 : (len == 2)? 0x3 : (len == 3)? 0x7 : 0xF;
563 
    byteena1 = ((addr & 0x3) == 0)? byteena1 : ((addr & 0x3) == 1)? byteena1 << 1 : ((addr & 0x3) == 2)? byteena1 << 2 : byteena1 << 3;
564 
 
565 
    Bit32u   addr2    = (addr + 4) & 0xFFFFFFFC;
566 
    Bit32u   addr3    = (addr + 8) & 0xFFFFFFFC;
567 
 
568 
    if(two_reads || three_reads) byteena1 = 0xF;
569 
    byteena1 &= 0xF;
570 
 
571 
    //-------------------------------------------------------------------------- first read
572 
    unsigned int data_read[3] = { 0,0,0 };
573 
 
574 
    shared_ptr->bochs486_pc.mem_address    = addr1;
575 
    shared_ptr->bochs486_pc.mem_byteenable = byteena1 & 0xF;
576 
    shared_ptr->bochs486_pc.mem_is_write   = 0;
577 
    shared_ptr->bochs486_pc.mem_step       = STEP_REQ;
578 
    while(shared_ptr->bochs486_pc.mem_step != STEP_ACK) {
579 
        fflush(stdout);
580 
        usleep(10);
581 
    }
582 
    data_read[0] = shared_ptr->bochs486_pc.mem_data;
583 
 
584 
    FILE *fp = fopen("track.txt", "a");
585 
    fprintf(fp, "mem rd %08x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr1, byteena1 & 0xF, data_read[0],
586 
            bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
587 
            bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
588 
    fclose(fp);
589 
 
590 
    shared_ptr->bochs486_pc.mem_step = STEP_IDLE;
591 
 
592 
    if(two_reads || three_reads) {
593 
        //---------------------------------------------------------------------- second read
594 
        shared_ptr->bochs486_pc.mem_address    = addr2;
595 
        shared_ptr->bochs486_pc.mem_byteenable = 0xF;
596 
        shared_ptr->bochs486_pc.mem_is_write   = 0;
597 
        shared_ptr->bochs486_pc.mem_step       = STEP_REQ;
598 
        while(shared_ptr->bochs486_pc.mem_step != STEP_ACK) {
599 
            fflush(stdout);
600 
            usleep(10);
601 
        }
602 
        data_read[1] = shared_ptr->bochs486_pc.mem_data;
603 
 
604 
        FILE *fp = fopen("track.txt", "a");
605 
        fprintf(fp, "mem rd %08x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr2, 0xF, data_read[1],
606 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
607 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
608 
        fclose(fp);
609 
 
610 
        shared_ptr->bochs486_pc.mem_step = STEP_IDLE;
611 
 
612 
        if(three_reads) {
613 
            //------------------------------------------------------------------ third read
614 
            shared_ptr->bochs486_pc.mem_address    = addr3;
615 
            shared_ptr->bochs486_pc.mem_byteenable = 0xF;
616 
            shared_ptr->bochs486_pc.mem_is_write   = 0;
617 
            shared_ptr->bochs486_pc.mem_step       = STEP_REQ;
618 
            while(shared_ptr->bochs486_pc.mem_step != STEP_ACK) {
619 
                fflush(stdout);
620 
                usleep(10);
621 
            }
622 
            data_read[2] = shared_ptr->bochs486_pc.mem_data;
623 
 
624 
            FILE *fp = fopen("track.txt", "a");
625 
            fprintf(fp, "mem rd %08x %x %08x; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", addr3, 0xF, data_read[2],
626 
                    bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
627 
                    bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
628 
            fclose(fp);
629 
 
630 
            shared_ptr->bochs486_pc.mem_step = STEP_IDLE;
631 
        }
632 
    }
633 
 
634 
    unsigned char *ptr = (unsigned char *)data_read;
635 
 
636 
    for(int i=0; i<(addr & 0x3); i++) ptr++;
637 
 
638 
    memcpy((unsigned char *)data, ptr, len);
639 
}
640 
 
641 
Bit8u *BX_MEM_C::getHostMemAddr(BX_CPU_C *cpu, bx_phy_address addr, unsigned rw) {
642 
//printf("#bochs486_pc: getHostMemAddr: addr=%08x, rw=%d\n", addr, rw);
643 
 
644 
    if(addr >= 0xA0000 && addr < 0xC0000) return NULL;
645 
    if(rw != BX_EXECUTE) return NULL;
646 
 
647 
    if(addr >= 0xFFFFF000) addr &= 0x000FFFFF;
648 
    addr &= 0x07FFFFFF;
649 
 
650 
    return (Bit8u *)(shared_ptr->mem.bytes + addr);
651 
}
652 
BX_MEM_C::BX_MEM_C() {
653 
}
654 
BX_MEM_C::~BX_MEM_C() {
655 
}
656 
 
657 
BOCHSAPI BX_MEM_C bx_mem;
658 
 
659 
//------------------------------------------------------------------------------
660 
//------------------------------------------------------------------------------
661 
//------------------------------------------------------------------------------ interrupt
662 
 
663 
void print_segment(bx_segment_reg_t *seg, const char *prefix) {
664 
 
665 
    printf("%s: %04x ",    prefix, seg->selector.value);
666 
    printf("val: %01x ",   seg->cache.valid & 1);
667 
    printf("rpl: %01hhx ", seg->selector.rpl);
668 
    printf("base: %08x ",  seg->cache.u.segment.base);
669 
    printf("limit: %08x ", (seg->cache.u.segment.g)? seg->cache.u.segment.limit_scaled >> 12 : seg->cache.u.segment.limit_scaled);
670 
    printf("g: %01x ",     seg->cache.u.segment.g);
671 
    printf("d_b: %01x ",   seg->cache.u.segment.d_b);
672 
    printf("avl: %01x ",   seg->cache.u.segment.avl);
673 
    printf("p: %01x ",     seg->cache.p);
674 
    printf("dpl: %01x ",   seg->cache.dpl);
675 
    printf("s: %01x ",     seg->cache.segment);
676 
    printf("type: %01x\n", seg->cache.type);
677 
}
678 
 
679 
void output_cpu_state() {
680 
    printf("eax: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EAX));
681 
    printf("ebx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EBX));
682 
    printf("ecx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_ECX));
683 
    printf("edx: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EDX));
684 
    printf("esi: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_ESI));
685 
    printf("edi: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EDI));
686 
    printf("ebp: %08x ", bx_cpu.get_reg32(BX_32BIT_REG_EBP));
687 
    printf("esp: %08x\n", bx_cpu.get_reg32(BX_32BIT_REG_ESP));
688 
 
689 
    printf("eip: %08x\n", bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx);
690 
 
691 
    printf("cflag:  %01x ", bx_cpu.getB_CF());
692 
    printf("pflag:  %01x ", bx_cpu.getB_PF());
693 
    printf("aflag:  %01x ", bx_cpu.getB_AF());
694 
    printf("zflag:  %01x ", bx_cpu.getB_ZF());
695 
    printf("sflag:  %01x ", bx_cpu.getB_SF());
696 
    printf("tflag:  %01x ", bx_cpu.getB_TF()&1);
697 
    printf("iflag:  %01x ", bx_cpu.getB_IF()&1);
698 
    printf("dflag:  %01x ", bx_cpu.getB_DF()&1);
699 
    printf("oflag:  %01x ", bx_cpu.getB_OF()&1);
700 
    printf("iopl:   %01x ", bx_cpu.get_IOPL()&3);
701 
    printf("ntflag: %01x ", bx_cpu.getB_NT()&1);
702 
    printf("rflag:  %01x ", bx_cpu.getB_RF()&1);
703 
    printf("vmflag: %01x ", bx_cpu.getB_VM()&1);
704 
    printf("acflag: %01x ", bx_cpu.getB_AC()&1);
705 
    printf("idflag: %01x\n", bx_cpu.getB_ID()&1);
706 
 
707 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_CS]), "cs");
708 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_DS]), "ds");
709 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_ES]), "es");
710 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_FS]), "fs");
711 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_GS]), "gs");
712 
    print_segment(&(bx_cpu.sregs[BX_SEG_REG_SS]), "ss");
713 
    print_segment(&(bx_cpu.ldtr), "ldtr");
714 
    print_segment(&(bx_cpu.tr),   "tr");
715 
 
716 
    printf("gdtr_base:  %08x ", bx_cpu.gdtr.base);
717 
    printf("gdtr_limit: %02x\n", bx_cpu.gdtr.limit & 0xFFFF);
718 
 
719 
    printf("idtr_base:  %08x ", bx_cpu.idtr.base);
720 
    printf("idtr_limit: %02x\n", bx_cpu.idtr.limit & 0xFFFF);
721 
 
722 
    printf("cr0_pe: %01x ", bx_cpu.cr0.get_PE() & 1);
723 
    printf("cr0_mp: %01x ", bx_cpu.cr0.get_MP() & 1);
724 
    printf("cr0_em: %01x ", bx_cpu.cr0.get_EM() & 1);
725 
    printf("cr0_ts: %01x ", bx_cpu.cr0.get_TS() & 1);
726 
    printf("cr0_ne: %01x ", bx_cpu.cr0.get_NE() & 1);
727 
    printf("cr0_wp: %01x ", bx_cpu.cr0.get_WP() & 1);
728 
    printf("cr0_am: %01x ", bx_cpu.cr0.get_AM() & 1);
729 
    printf("cr0_nw: %01x ", bx_cpu.cr0.get_NW() & 1);
730 
    printf("cr0_cd: %01x ", bx_cpu.cr0.get_CD() & 1);
731 
    printf("cr0_pg: %01x\n", bx_cpu.cr0.get_PG() & 1);
732 
 
733 
    printf("cr2: %08x ", bx_cpu.cr2);
734 
    printf("cr3: %08x\n", bx_cpu.cr3);
735 
 
736 
    printf("dr0: %08x ", bx_cpu.dr[0]);
737 
    printf("dr1: %08x ", bx_cpu.dr[1]);
738 
    printf("dr2: %08x ", bx_cpu.dr[2]);
739 
    printf("dr3: %08x ", bx_cpu.dr[3]);
740 
 
741 
    printf("dr6: %08x ", bx_cpu.dr6.val32);
742 
    printf("dr7: %08x\n", bx_cpu.dr7.val32);
743 
 
744 
    fflush(stdout);
745 
}
746 
 
747 
uint32 seg_word_1(bx_segment_reg_t *seg) {
748 
    return  (seg->cache.u.segment.base & 0xFF000000) |
749 
            (seg->cache.u.segment.g?   0x00800000 : 0x00) |
750 
            (seg->cache.u.segment.d_b? 0x00400000 : 0x00) |
751 
            (seg->cache.u.segment.avl? 0x00100000 : 0x00) |
752 
            (((seg->cache.u.segment.limit_scaled >> (seg->cache.u.segment.g? 12 : 0)) << 16) & 0xF) |
753 
            (seg->cache.p?   0x00008000 : 0x0) |
754 
            ((seg->cache.dpl & 0x3) << 13) |
755 
            ((seg->cache.segment & 0x1) << 12) |
756 
            ((seg->cache.type & 0xF) << 8) |
757 
            ((seg->cache.u.segment.base >> 16) & 0xFF);
758 
}
759 
 
760 
uint32 seg_word_2(bx_segment_reg_t *seg) {
761 
    return ((seg->cache.u.segment.base & 0xFFFF) << 16) |
762 
           ((seg->cache.u.segment.limit_scaled >> (seg->cache.u.segment.g? 12 : 0)) & 0xFFFF);
763 
}
764 
 
765 
void output_for_verilator() {
766 
 
767 
    FILE *fp = fopen("./../rtl/ao486/startup_from_sim.v", "wb");
768 
 
769 
    fprintf(fp, "`define STARTUP_EAX   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_EAX));
770 
    fprintf(fp, "`define STARTUP_EBX   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_EBX));
771 
    fprintf(fp, "`define STARTUP_ECX   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_ECX));
772 
    fprintf(fp, "`define STARTUP_EDX   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_EDX));
773 
    fprintf(fp, "`define STARTUP_EBP   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_EBP));
774 
    fprintf(fp, "`define STARTUP_ESP   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_ESP));
775 
    fprintf(fp, "`define STARTUP_ESI   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_ESI));
776 
    fprintf(fp, "`define STARTUP_EDI   32'h%08x\n", bx_cpu.get_reg32(BX_32BIT_REG_EDI));
777 
 
778 
    fprintf(fp, "`define STARTUP_CR0_PE 1'b%d\n", bx_cpu.cr0.get_PE() & 1);
779 
    fprintf(fp, "`define STARTUP_CR0_MP 1'b%d\n", bx_cpu.cr0.get_MP() & 1);
780 
    fprintf(fp, "`define STARTUP_CR0_EM 1'b%d\n", bx_cpu.cr0.get_EM() & 1);
781 
    fprintf(fp, "`define STARTUP_CR0_TS 1'b%d\n", bx_cpu.cr0.get_TS() & 1);
782 
    fprintf(fp, "`define STARTUP_CR0_NE 1'b%d\n", bx_cpu.cr0.get_NE() & 1);
783 
    fprintf(fp, "`define STARTUP_CR0_WP 1'b%d\n", bx_cpu.cr0.get_WP() & 1);
784 
    fprintf(fp, "`define STARTUP_CR0_AM 1'b%d\n", bx_cpu.cr0.get_AM() & 1);
785 
    fprintf(fp, "`define STARTUP_CR0_NW 1'b%d\n", bx_cpu.cr0.get_NW() & 1);
786 
    fprintf(fp, "`define STARTUP_CR0_CD 1'b%d\n", bx_cpu.cr0.get_CD() & 1);
787 
    fprintf(fp, "`define STARTUP_CR0_PG 1'b%d\n", bx_cpu.cr0.get_PG() & 1);
788 
 
789 
    fprintf(fp, "`define STARTUP_CR2 32'h%08x\n", bx_cpu.cr2);
790 
    fprintf(fp, "`define STARTUP_CR3 32'h%08x\n", bx_cpu.cr3);
791 
 
792 
    fprintf(fp, "`define STARTUP_CFLAG  1'b%d\n", bx_cpu.getB_CF());
793 
    fprintf(fp, "`define STARTUP_PFLAG  1'b%d\n", bx_cpu.getB_PF());
794 
    fprintf(fp, "`define STARTUP_AFLAG  1'b%d\n", bx_cpu.getB_AF());
795 
    fprintf(fp, "`define STARTUP_ZFLAG  1'b%d\n", bx_cpu.getB_ZF());
796 
    fprintf(fp, "`define STARTUP_SFLAG  1'b%d\n", bx_cpu.getB_SF());
797 
    fprintf(fp, "`define STARTUP_OFLAG  1'b%d\n", bx_cpu.getB_OF()&1);
798 
    fprintf(fp, "`define STARTUP_TFLAG  1'b%d\n", bx_cpu.getB_TF()&1);
799 
    fprintf(fp, "`define STARTUP_IFLAG  1'b%d\n", bx_cpu.getB_IF()&1);
800 
    fprintf(fp, "`define STARTUP_DFLAG  1'b%d\n", bx_cpu.getB_DF()&1);
801 
    fprintf(fp, "`define STARTUP_IOPL   2'd%d\n", bx_cpu.get_IOPL()&3);
802 
    fprintf(fp, "`define STARTUP_NTFLAG 1'b%d\n", bx_cpu.getB_NT()&1);
803 
    fprintf(fp, "`define STARTUP_VMFLAG 1'b%d\n", bx_cpu.getB_VM()&1);
804 
    fprintf(fp, "`define STARTUP_ACFLAG 1'b%d\n", bx_cpu.getB_AC()&1);
805 
    fprintf(fp, "`define STARTUP_IDFLAG 1'b%d\n", bx_cpu.getB_ID()&1);
806 
    fprintf(fp, "`define STARTUP_RFLAG  1'b%d\n", bx_cpu.getB_RF()&1);
807 
 
808 
    fprintf(fp, "`define STARTUP_GDTR_BASE  32'h%08x\n", bx_cpu.gdtr.base);
809 
    fprintf(fp, "`define STARTUP_GDTR_LIMIT 16'h%04x\n", bx_cpu.gdtr.limit & 0xFFFF);
810 
 
811 
    fprintf(fp, "`define STARTUP_IDTR_BASE  32'h%08x\n", bx_cpu.idtr.base);
812 
    fprintf(fp, "`define STARTUP_IDTR_LIMIT 16'h%04x\n", bx_cpu.idtr.limit & 0xFFFF);
813 
 
814 
    fprintf(fp, "`define STARTUP_DR0 32'h%08x\n", bx_cpu.dr[0]);
815 
    fprintf(fp, "`define STARTUP_DR1 32'h%08x\n", bx_cpu.dr[1]);
816 
    fprintf(fp, "`define STARTUP_DR2 32'h%08x\n", bx_cpu.dr[2]);
817 
    fprintf(fp, "`define STARTUP_DR3 32'h%08x\n", bx_cpu.dr[3]);
818 
 
819 
    fprintf(fp, "`define STARTUP_DR6_BREAKPOINTS 4'h%01x\n", bx_cpu.dr6.val32 & 0xF);
820 
    fprintf(fp, "`define STARTUP_DR6_B12         1'b%01x\n", (bx_cpu.dr6.val32 >> 12) & 0x1);
821 
    fprintf(fp, "`define STARTUP_DR6_BD          1'b%01x\n", (bx_cpu.dr6.val32 >> 13) & 0x1);
822 
    fprintf(fp, "`define STARTUP_DR6_BS          1'b%01x\n", (bx_cpu.dr6.val32 >> 14) & 0x1);
823 
    fprintf(fp, "`define STARTUP_DR6_BT          1'b%01x\n", (bx_cpu.dr6.val32 >> 15) & 0x1);
824 
    fprintf(fp, "`define STARTUP_DR7            32'h%08x\n", bx_cpu.dr7.val32);
825 
 
826 
    fprintf(fp, "`define STARTUP_ES   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_ES].selector.value);
827 
    fprintf(fp, "`define STARTUP_DS   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_DS].selector.value);
828 
    fprintf(fp, "`define STARTUP_SS   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_SS].selector.value);
829 
    fprintf(fp, "`define STARTUP_FS   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_FS].selector.value);
830 
    fprintf(fp, "`define STARTUP_GS   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_GS].selector.value);
831 
    fprintf(fp, "`define STARTUP_CS   16'h%04x\n", bx_cpu.sregs[BX_SEG_REG_CS].selector.value);
832 
    fprintf(fp, "`define STARTUP_LDTR 16'h%04x\n", bx_cpu.ldtr.selector.value);
833 
    fprintf(fp, "`define STARTUP_TR   16'h%04x\n", bx_cpu.tr.selector.value);
834 
 
835 
    fprintf(fp, "`define STARTUP_ES_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_ES].selector.rpl);
836 
    fprintf(fp, "`define STARTUP_DS_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_DS].selector.rpl);
837 
    fprintf(fp, "`define STARTUP_SS_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_SS].selector.rpl);
838 
    fprintf(fp, "`define STARTUP_FS_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_FS].selector.rpl);
839 
    fprintf(fp, "`define STARTUP_GS_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_GS].selector.rpl);
840 
    fprintf(fp, "`define STARTUP_CS_RPL   2'd%d\n", bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl);
841 
    fprintf(fp, "`define STARTUP_LDTR_RPL 2'd%d\n", bx_cpu.ldtr.selector.rpl);
842 
    fprintf(fp, "`define STARTUP_TR_RPL   2'd%d\n", bx_cpu.tr.selector.rpl);
843 
 
844 
    fprintf(fp, "`define STARTUP_ES_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_ES])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_ES])));
845 
    fprintf(fp, "`define STARTUP_DS_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_DS])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_DS])));
846 
    fprintf(fp, "`define STARTUP_SS_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_SS])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_SS])));
847 
    fprintf(fp, "`define STARTUP_FS_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_FS])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_FS])));
848 
    fprintf(fp, "`define STARTUP_GS_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_GS])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_GS])));
849 
    fprintf(fp, "`define STARTUP_CS_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.sregs[BX_SEG_REG_CS])), seg_word_2(&(bx_cpu.sregs[BX_SEG_REG_CS])));
850 
    fprintf(fp, "`define STARTUP_LDTR_CACHE 64'h%08x%08x\n", seg_word_1(&(bx_cpu.ldtr)),                 seg_word_2(&(bx_cpu.ldtr)));
851 
    fprintf(fp, "`define STARTUP_TR_CACHE   64'h%08x%08x\n", seg_word_1(&(bx_cpu.tr)),                   seg_word_2(&(bx_cpu.tr)));
852 
 
853 
    fprintf(fp, "`define STARTUP_ES_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_ES].cache.valid & 1);
854 
    fprintf(fp, "`define STARTUP_DS_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_DS].cache.valid & 1);
855 
    fprintf(fp, "`define STARTUP_SS_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_SS].cache.valid & 1);
856 
    fprintf(fp, "`define STARTUP_FS_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_FS].cache.valid & 1);
857 
    fprintf(fp, "`define STARTUP_GS_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_GS].cache.valid & 1);
858 
    fprintf(fp, "`define STARTUP_CS_VALID   1'b%d\n", bx_cpu.sregs[BX_SEG_REG_CS].cache.valid & 1);
859 
    fprintf(fp, "`define STARTUP_LDTR_VALID 1'b%d\n", bx_cpu.ldtr.cache.valid & 1);
860 
    fprintf(fp, "`define STARTUP_TR_VALID   1'b%d\n", bx_cpu.tr.cache.valid & 1);
861 
 
862 
    fprintf(fp, "`define STARTUP_EIP 32'h%08x\n", bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx);
863 
 
864 
    fprintf(fp, "`define STARTUP_PREFETCH_LIMIT  32'h%08x\n",
865 
            (bx_cpu.sregs[BX_SEG_REG_CS].cache.u.segment.limit_scaled >> (bx_cpu.sregs[BX_SEG_REG_CS].cache.u.segment.g? 12 : 0)) - bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx + 1);
866 
    fprintf(fp, "`define STARTUP_PREFETCH_LINEAR 32'h%08x\n",
867 
            bx_cpu.sregs[BX_SEG_REG_CS].cache.u.segment.base + bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx);
868 
 
869 
    fflush(fp);
870 
    fclose(fp);
871 
}
872 
 
873 
//------------------------------------------------------------------------------
874 
//------------------------------------------------------------------------------
875 
//------------------------------------------------------------------------------ instrument
876 
 
877 
bool bochs486_skip_rep_finish = false;
878 
 
879 
 
880 
void bx_instr_init_env(void) { }
881 
void bx_instr_exit_env(void) { }
882 
 
883 
void bx_instr_debug_promt() { }
884 
void bx_instr_debug_cmd(const char *cmd) { }
885 
 
886 
void bx_instr_cnear_branch_taken(unsigned cpu, bx_address branch_eip, bx_address new_eip) { }
887 
void bx_instr_cnear_branch_not_taken(unsigned cpu, bx_address branch_eip) { }
888 
void bx_instr_ucnear_branch(unsigned cpu, unsigned what, bx_address branch_eip, bx_address new_eip) { }
889 
void bx_instr_far_branch(unsigned cpu, unsigned what, Bit16u new_cs, bx_address new_eip) { }
890 
 
891 
void bx_instr_opcode(unsigned cpu, bxInstruction_c *i, const Bit8u *opcode, unsigned len, bx_bool is32, bx_bool is64) { }
892 
 
893 
void bx_instr_exception(unsigned cpu, unsigned vector, unsigned error_code) { }
894 
void bx_instr_hwinterrupt(unsigned cpu, unsigned vector, Bit16u cs, bx_address eip) { }
895 
 
896 
void bx_instr_tlb_cntrl(unsigned cpu, unsigned what, bx_phy_address new_cr3) { }
897 
void bx_instr_cache_cntrl(unsigned cpu, unsigned what) { }
898 
void bx_instr_prefetch_hint(unsigned cpu, unsigned what, unsigned seg, bx_address offset) { }
899 
void bx_instr_clflush(unsigned cpu, bx_address laddr, bx_phy_address paddr) { }
900 
 
901 
void bx_instr_initialize(unsigned cpu) { }
902 
void bx_instr_exit(unsigned cpu) { }
903 
void bx_instr_reset(unsigned cpu, unsigned type) { }
904 
 
905 
void bx_instr_inp(Bit16u addr, unsigned len) { }
906 
void bx_instr_inp2(Bit16u addr, unsigned len, unsigned val) { }
907 
void bx_instr_outp(Bit16u addr, unsigned len, unsigned val) { }
908 
 
909 
void bx_instr_lin_access(unsigned cpu, bx_address lin, bx_address phy, unsigned len, unsigned rw) { }
910 
void bx_instr_phy_access(unsigned cpu, bx_address phy, unsigned len, unsigned rw) { }
911 
 
912 
void bx_instr_wrmsr(unsigned cpu, unsigned addr, Bit64u value) { }
913 
 
914 
 
915 
bool intr_pending = false;
916 
 
917 
void bx_instr_interrupt(unsigned cpu, unsigned vector, unsigned type, bx_bool push_error, Bit16u error_code) {
918 
 
919 
    bochs486_skip_rep_finish = false;
920 
    if(type == BX_EXTERNAL_INTERRUPT) intr_pending = false;
921 
 
922 
    if(type == BX_HARDWARE_EXCEPTION || type == BX_EXTERNAL_INTERRUPT) {
923 
        printf("bx_instr_interrupt(%d): %02x at %d\n", type, vector, shared_ptr->bochs486_pc.instr_counter);
924 
        shared_ptr->bochs486_pc.instr_counter++;
925 
 
926 
        if(type != BX_EXTERNAL_INTERRUPT) {
927 
            FILE *fp = fopen("track.txt", "a");
928 
            fprintf(fp, "Exception 0x%02x at %d; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", vector, shared_ptr->bochs486_pc.instr_counter,
929 
                    bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
930 
                    bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
931 
            fclose(fp);
932 
        }
933 
 
934 
        if(shared_ptr->irq_do == STEP_REQ && intr_pending == false) {
935 
printf("raise_INTR(): %02x at %d\n", shared_ptr->irq_do_vector, shared_ptr->bochs486_pc.instr_counter);
936 
            bx_cpu.raise_INTR();
937 
            intr_pending = true;
938 
        }
939 
 
940 
        if(shared_ptr->irq_do == STEP_IDLE && intr_pending == true) {
941 
printf("clear_INTR() at %d\n", shared_ptr->bochs486_pc.instr_counter);
942 
            bx_cpu.clear_INTR();
943 
            intr_pending = false;
944 
        }
945 
 
946 
/*
947 
        if(shared_ptr->bochs486_pc.instr_counter == shared_ptr->interrupt_at_counter) {
948 
            interrupt_vector = shared_ptr->interrupt_vector;
949 
 
950 
            FILE *fp = fopen("track.txt", "a");
951 
            fprintf(fp, "IAC 0x%02x at %x\n", vector, shared_ptr->bochs486_pc.instr_counter);
952 
            fclose(fp);
953 
 
954 
printf("raise_INTR(): %02x at %d\n", interrupt_vector, shared_ptr->bochs486_pc.instr_counter);
955 
            bx_cpu.raise_INTR();
956 
            intr_pending = true;
957 
        }
958 
        else if(intr_pending && shared_ptr->interrupt_at_counter == 0) {
959 
printf("clear_INTR() at %d\n", shared_ptr->bochs486_pc.instr_counter);
960 
            bx_cpu.clear_INTR();
961 
            intr_pending = false;
962 
        }
963 
*/
964 
    }
965 
    else {
966 
        FILE *fp = fopen("track.txt", "a");
967 
        fprintf(fp, "INT 0x%02x at %d; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", vector, shared_ptr->bochs486_pc.instr_counter,
968 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
969 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
970 
        fclose(fp);
971 
    }
972 
}
973 
 
974 
void instr_after_execution() {
975 
 
976 
    shared_ptr->bochs486_pc.instr_counter++;
977 
 
978 
bx_cpu.TLB_flush();
979 
 
980 
    if(shared_ptr->dump_enabled) {
981 
        output_cpu_state();
982 
    }
983 
 
984 
    if(shared_ptr->irq_do == STEP_REQ && intr_pending == false) {
985 
printf("raise_INTR(): %02x at %d\n", shared_ptr->irq_do_vector, shared_ptr->bochs486_pc.instr_counter);
986 
        bx_cpu.raise_INTR();
987 
        intr_pending = true;
988 
    }
989 
 
990 
    if(shared_ptr->irq_do == STEP_IDLE && intr_pending == true) {
991 
printf("clear_INTR() at %d\n", shared_ptr->bochs486_pc.instr_counter);
992 
        bx_cpu.clear_INTR();
993 
        intr_pending = false;
994 
    }
995 
 
996 
/*
997 
    if(shared_ptr->bochs486_pc.instr_counter == shared_ptr->interrupt_at_counter) {
998 
        interrupt_vector = shared_ptr->interrupt_vector;
999 
 
1000 
        FILE *fp = fopen("track.txt", "a");
1001 
        fprintf(fp, "IAC 0x%02x at %x\n", interrupt_vector, shared_ptr->bochs486_pc.instr_counter);
1002 
        fclose(fp);
1003 
 
1004 
printf("raise_INTR(): %02x at %d\n", interrupt_vector, shared_ptr->bochs486_pc.instr_counter);
1005 
        bx_cpu.raise_INTR();
1006 
        intr_pending = true;
1007 
    }
1008 
    else if(intr_pending && shared_ptr->interrupt_at_counter == 0) {
1009 
printf("clear_INTR() at %d\n", shared_ptr->bochs486_pc.instr_counter);
1010 
        bx_cpu.clear_INTR();
1011 
        intr_pending = false;
1012 
    }
1013 
*/
1014 
 
1015 
    if(shared_ptr->bochs486_pc.stop == STEP_REQ && bochs486_skip_rep_finish == false) {
1016 
        printf("stopping...\n");
1017 
        output_cpu_state();
1018 
        fflush(stdout);
1019 
 
1020 
        output_for_verilator();
1021 
 
1022 
        shared_ptr->bochs486_pc.stop = STEP_ACK;
1023 
        while(shared_ptr->bochs486_pc.stop != STEP_IDLE) {
1024 
            usleep(500);
1025 
        }
1026 
    }
1027 
}
1028 
 
1029 
void bx_instr_before_execution(unsigned cpu, bxInstruction_c *i) {
1030 
 
1031 
//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);
1032 
 
1033 
}
1034 
 
1035 
void bx_instr_after_execution(unsigned cpu, bxInstruction_c *i) {
1036 
//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);
1037 
 
1038 
    if(bochs486_skip_rep_finish) {
1039 
        printf("#bx_instr_after_execution: bochs486_skip_rep_finished at %d\n", shared_ptr->bochs486_pc.instr_counter);
1040 
        bochs486_skip_rep_finish = false;
1041 
        return;
1042 
    }
1043 
 
1044 
printf("#instr: %02x %d\n", i->bochs486_opcode, shared_ptr->bochs486_pc.instr_counter);
1045 
 
1046 
    if(i->bochs486_opcode == 0xCF) {
1047 
        FILE *fp = fopen("track.txt", "a");
1048 
        fprintf(fp, "IRET at %d; pe: %d, pg: %d, vm: %d, eip: %08x, cs: %04x, rpl: %d, ebx: %08x\n", shared_ptr->bochs486_pc.instr_counter,
1049 
                bx_cpu.cr0.get_PE() & 1, bx_cpu.cr0.get_PG() & 1, bx_cpu.getB_VM()&1, bx_cpu.gen_reg[BX_32BIT_REG_EIP].dword.erx, bx_cpu.sregs[BX_SEG_REG_CS].selector.value, bx_cpu.sregs[BX_SEG_REG_CS].selector.rpl,
1050 
                bx_cpu.gen_reg[BX_32BIT_REG_EBX].dword.erx);
1051 
        fclose(fp);
1052 
    }
1053 
 
1054 
    instr_after_execution();
1055 
}
1056 
void bx_instr_repeat_iteration(unsigned cpu, bxInstruction_c *i) {
1057 
    bochs486_skip_rep_finish = true;
1058 
 
1059 
printf("#repeat: %d\n", shared_ptr->bochs486_pc.instr_counter);
1060 
    instr_after_execution();
1061 
}
1062 
void bx_instr_hlt(unsigned cpu) {
1063 
    instr_after_execution();
1064 
}
1065 
 
1066 
void bx_instr_mwait(unsigned cpu, bx_phy_address addr, unsigned len, Bit32u flags) { }
1067 
 
1068 
// memory trace callbacks from CPU, len=1,2,4 or 8
1069 
void bx_dbg_lin_memory_access(unsigned cpu, bx_address lin, bx_phy_address phy, unsigned len, unsigned pl, unsigned rw, Bit8u *data) {
1070 
}
1071 
void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, unsigned attr, Bit8u *data) {
1072 
}
1073 
 
1074 
//------------------------------------------------------------------------------
1075 
//------------------------------------------------------------------------------
1076 
//------------------------------------------------------------------------------ main
1077 
 
1078 
int main(int argc, char **argv) {
1079 
 
1080 
    //map shared memory
1081 
    int fd = open("./../sim/sim_pc/shared_mem.dat", O_RDWR, S_IRUSR | S_IWUSR);
1082 
 
1083 
    if(fd == -1) {
1084 
        perror("open() failed for shared_mem.dat");
1085 
        return -1;
1086 
    }
1087 
 
1088 
    shared_ptr = (shared_mem_t *)mmap(NULL, sizeof(shared_mem_t), PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
1089 
 
1090 
    if(shared_ptr == MAP_FAILED) {
1091 
        perror("mmap() failed");
1092 
        close(fd);
1093 
        return -2;
1094 
    }
1095 
 
1096 
    //wait for ack
1097 
    shared_ptr->bochs486_pc.starting = STEP_REQ;
1098 
    printf("Waiting for startup ack...");
1099 
    fflush(stdout);
1100 
    while(shared_ptr->bochs486_pc.starting != STEP_ACK) {
1101 
        usleep(100000);
1102 
    }
1103 
    printf("done.\n");
1104 
 
1105 
 
1106 
 
1107 
    bx_pc_system.a20_mask = 0xFFFFFFFF;
1108 
 
1109 
    SIM = new bochs486_sim();
1110 
 
1111 
    bx_cpu.initialize();
1112 
    bx_cpu.reset(BX_RESET_HARDWARE);
1113 
 
1114 
    printf("START\n");
1115 
    bx_cpu.gen_reg[BX_32BIT_REG_EDX].dword.erx = 0x0000045b; //after reset EDX value
1116 
    shared_ptr->bochs486_pc.instr_counter++; //ao486 has extra instruction at 0xFFFFFFF0
1117 
 
1118 
    bx_cpu.async_event = 0;
1119 
    bx_cpu.handleCpuModeChange();
1120 
 
1121 
    bx_cpu.cpu_loop();
1122 
 
1123 
    printf("#bochs486_pc: finishing.\n");
1124 
 
1125 
    munmap((void *)shared_ptr, sizeof(shared_mem_t));
1126 
    close(fd);
1127 
 
1128 
    return 0;
1129 
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.