| 1 |
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/* |
| 2 |
< |
* mon.cpp - mon main program |
| 2 |
> |
* mon.cpp - cxmon main program |
| 3 |
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* |
| 4 |
< |
* mon (C) 1997-1999 Christian Bauer, Marc Hellwig |
| 4 |
> |
* cxmon (C) 1997-2002 Christian Bauer, Marc Hellwig |
| 5 |
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* |
| 6 |
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* This program is free software; you can redistribute it and/or modify |
| 7 |
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* it under the terms of the GNU General Public License as published by |
| 20 |
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| 21 |
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#include "sysdeps.h" |
| 22 |
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|
| 23 |
< |
#ifdef HAVE_READLINE_READLINE_H |
| 23 |
> |
#include <stdio.h> |
| 24 |
> |
#include <stdlib.h> |
| 25 |
> |
#include <signal.h> |
| 26 |
> |
#include <ctype.h> |
| 27 |
> |
#include <string> |
| 28 |
> |
#include <map> |
| 29 |
> |
|
| 30 |
> |
#if defined(HAVE_READLINE_H) |
| 31 |
> |
extern "C" { |
| 32 |
> |
#include <readline.h> |
| 33 |
> |
} |
| 34 |
> |
#elif defined(HAVE_READLINE_READLINE_H) |
| 35 |
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extern "C" { |
| 36 |
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#include <readline/readline.h> |
| 37 |
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} |
| 38 |
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#endif |
| 39 |
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|
| 40 |
< |
#ifdef HAVE_READLINE_HISTORY_H |
| 40 |
> |
#if defined(HAVE_HISTORY_H) |
| 41 |
> |
extern "C" { |
| 42 |
> |
#include <history.h> |
| 43 |
> |
} |
| 44 |
> |
#elif defined(HAVE_READLINE_HISTORY_H) |
| 45 |
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extern "C" { |
| 46 |
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#include <readline/history.h> |
| 47 |
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} |
| 49 |
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|
| 50 |
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#include "mon.h" |
| 51 |
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#include "mon_cmd.h" |
| 52 |
< |
#include "version.h" |
| 52 |
> |
#include "mon_lowmem.h" |
| 53 |
> |
|
| 54 |
> |
#ifndef VERSION |
| 55 |
> |
#define VERSION "2" |
| 56 |
> |
#endif |
| 57 |
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|
| 58 |
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|
| 59 |
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// Buffer we're operating on |
| 96 |
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|
| 97 |
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|
| 98 |
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// List of variables |
| 99 |
< |
struct Variable { |
| 100 |
< |
Variable *next; // Pointer to next variable (must be first element of struct) |
| 82 |
< |
char *name; // Variable name |
| 83 |
< |
uint32 value; // Variable value |
| 84 |
< |
}; |
| 85 |
< |
|
| 86 |
< |
static Variable *first_var; // Pointer to first variable |
| 99 |
> |
typedef map<string, uint32> var_map; |
| 100 |
> |
static var_map vars; |
| 101 |
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|
| 102 |
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|
| 103 |
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// Prototypes |
| 119 |
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static bool add_expr(uint32 *number); |
| 120 |
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static bool mul_expr(uint32 *number); |
| 121 |
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static bool factor(uint32 *number); |
| 108 |
– |
static Variable *lookup_var(const char *s); |
| 109 |
– |
static Variable *insert_var(const char *s); |
| 110 |
– |
static void remove_var(const char *s); |
| 122 |
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|
| 123 |
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|
| 124 |
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/* |
| 202 |
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* Access to buffer |
| 203 |
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*/ |
| 204 |
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|
| 205 |
< |
uint32 mon_read_byte(uint32 adr) |
| 205 |
> |
uint32 (*mon_read_byte)(uint32 adr); |
| 206 |
> |
|
| 207 |
> |
uint32 mon_read_byte_buffer(uint32 adr) |
| 208 |
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{ |
| 209 |
< |
if (mon_use_real_mem) |
| 197 |
< |
return *(uint8 *)adr; |
| 198 |
< |
else |
| 199 |
< |
return mem[adr % mon_mem_size]; |
| 209 |
> |
return mem[adr % mon_mem_size]; |
| 210 |
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} |
| 211 |
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|
| 212 |
< |
void mon_write_byte(uint32 adr, uint32 b) |
| 212 |
> |
uint32 mon_read_byte_real(uint32 adr) |
| 213 |
|
{ |
| 214 |
< |
if (mon_use_real_mem) |
| 215 |
< |
*(uint8 *)adr = b; |
| 216 |
< |
else |
| 217 |
< |
mem[adr % mon_mem_size] = b; |
| 214 |
> |
return *(uint8 *)adr; |
| 215 |
> |
} |
| 216 |
> |
|
| 217 |
> |
void (*mon_write_byte)(uint32 adr, uint32 b); |
| 218 |
> |
|
| 219 |
> |
void mon_write_byte_buffer(uint32 adr, uint32 b) |
| 220 |
> |
{ |
| 221 |
> |
mem[adr % mon_mem_size] = b; |
| 222 |
> |
} |
| 223 |
> |
|
| 224 |
> |
void mon_write_byte_real(uint32 adr, uint32 b) |
| 225 |
> |
{ |
| 226 |
> |
*(uint8 *)adr = b; |
| 227 |
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} |
| 228 |
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|
| 229 |
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uint32 mon_read_half(uint32 adr) |
| 230 |
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{ |
| 231 |
< |
if (mon_use_real_mem) |
| 213 |
< |
return ntohs(*(uint16 *)adr); |
| 214 |
< |
else |
| 215 |
< |
return mem[adr % mon_mem_size] << 8 | mem[(adr+1) % mon_mem_size]; |
| 231 |
> |
return (mon_read_byte(adr) << 8) | mon_read_byte(adr+1); |
| 232 |
|
} |
| 233 |
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|
| 234 |
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void mon_write_half(uint32 adr, uint32 w) |
| 235 |
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{ |
| 236 |
< |
if (mon_use_real_mem) |
| 237 |
< |
*(uint16 *)adr = htons(w); |
| 222 |
< |
else { |
| 223 |
< |
mem[adr % mon_mem_size] = w >> 8; |
| 224 |
< |
mem[(adr+1) % mon_mem_size] = w; |
| 225 |
< |
} |
| 236 |
> |
mon_write_byte(adr, w >> 8); |
| 237 |
> |
mon_write_byte(adr+1, w); |
| 238 |
|
} |
| 239 |
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|
| 240 |
|
uint32 mon_read_word(uint32 adr) |
| 241 |
|
{ |
| 242 |
< |
if (mon_use_real_mem) |
| 231 |
< |
return ntohl(*(uint32 *)adr); |
| 232 |
< |
else |
| 233 |
< |
return mon_read_byte(adr) << 24 | mon_read_byte(adr+1) << 16 | mon_read_byte(adr+2) << 8 | mon_read_byte(adr+3); |
| 242 |
> |
return (mon_read_byte(adr) << 24) | (mon_read_byte(adr+1) << 16) | (mon_read_byte(adr+2) << 8) | mon_read_byte(adr+3); |
| 243 |
|
} |
| 244 |
|
|
| 245 |
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void mon_write_word(uint32 adr, uint32 l) |
| 246 |
|
{ |
| 247 |
< |
if (mon_use_real_mem) |
| 248 |
< |
*(uint32 *)adr = htonl(l); |
| 249 |
< |
else { |
| 250 |
< |
mem[adr % mon_mem_size] = l >> 24; |
| 242 |
< |
mem[(adr+1) % mon_mem_size] = l >> 16; |
| 243 |
< |
mem[(adr+2) % mon_mem_size] = l >> 8; |
| 244 |
< |
mem[(adr+3) % mon_mem_size] = l; |
| 245 |
< |
} |
| 247 |
> |
mon_write_byte(adr, l >> 24); |
| 248 |
> |
mon_write_byte(adr+1, l >> 16); |
| 249 |
> |
mon_write_byte(adr+2, l >> 8); |
| 250 |
> |
mon_write_byte(adr+3, l); |
| 251 |
|
} |
| 252 |
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|
| 253 |
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|
| 702 |
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return true; |
| 703 |
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|
| 704 |
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case T_NAME:{ |
| 705 |
< |
Variable *var; |
| 706 |
< |
if ((var = lookup_var(mon_name)) != NULL) { |
| 707 |
< |
*number = var->value; |
| 705 |
> |
var_map::const_iterator v = vars.find(mon_name); |
| 706 |
> |
if (v == vars.end()) |
| 707 |
> |
return false; |
| 708 |
> |
else { |
| 709 |
> |
*number = v->second; |
| 710 |
|
mon_get_token(); |
| 711 |
|
return true; |
| 712 |
< |
} else |
| 706 |
< |
return false; |
| 712 |
> |
} |
| 713 |
|
} |
| 714 |
|
|
| 715 |
|
case T_DOT: |
| 769 |
|
|
| 770 |
|
|
| 771 |
|
/* |
| 766 |
– |
* Lookup the value of a variable |
| 767 |
– |
*/ |
| 768 |
– |
|
| 769 |
– |
static Variable *lookup_var(const char *s) |
| 770 |
– |
{ |
| 771 |
– |
// Lookup variable |
| 772 |
– |
for (Variable *var=first_var; var; var=var->next) |
| 773 |
– |
if (!strcmp(s, var->name)) |
| 774 |
– |
return var; |
| 775 |
– |
|
| 776 |
– |
// Not found, error |
| 777 |
– |
mon_error("Undefined variable"); |
| 778 |
– |
return NULL; |
| 779 |
– |
} |
| 780 |
– |
|
| 781 |
– |
|
| 782 |
– |
/* |
| 783 |
– |
* Insert new variable (or redefine old) |
| 784 |
– |
*/ |
| 785 |
– |
|
| 786 |
– |
static Variable *insert_var(const char *s) |
| 787 |
– |
{ |
| 788 |
– |
// Lookup variable |
| 789 |
– |
for (Variable *var=first_var; var; var=var->next) |
| 790 |
– |
if (!strcmp(s, var->name)) |
| 791 |
– |
return var; |
| 792 |
– |
|
| 793 |
– |
// Insert new variable |
| 794 |
– |
Variable *var = new Variable; |
| 795 |
– |
var->name = strdup(s); |
| 796 |
– |
var->next = first_var; |
| 797 |
– |
first_var = var; |
| 798 |
– |
return var; |
| 799 |
– |
} |
| 800 |
– |
|
| 801 |
– |
|
| 802 |
– |
/* |
| 803 |
– |
* Remove variable |
| 804 |
– |
*/ |
| 805 |
– |
|
| 806 |
– |
static void remove_var(const char *s) |
| 807 |
– |
{ |
| 808 |
– |
Variable *var, *prev = (Variable *)&first_var; |
| 809 |
– |
|
| 810 |
– |
// Lookup variable and remove it |
| 811 |
– |
for (var=prev->next; var; prev=var, var=var->next) |
| 812 |
– |
if (!strcmp(s, var->name)) { |
| 813 |
– |
prev->next = var->next; |
| 814 |
– |
free(var->name); |
| 815 |
– |
free(var); |
| 816 |
– |
return; |
| 817 |
– |
} |
| 818 |
– |
} |
| 819 |
– |
|
| 820 |
– |
|
| 821 |
– |
/* |
| 772 |
|
* Set/clear/show variables |
| 773 |
|
* set [var[=value]] |
| 774 |
|
*/ |
| 778 |
|
if (mon_token == T_END) { |
| 779 |
|
|
| 780 |
|
// Show all variables |
| 781 |
< |
if (first_var == NULL) |
| 781 |
> |
if (vars.empty()) |
| 782 |
|
fprintf(monout, "No variables defined\n"); |
| 783 |
< |
else |
| 784 |
< |
for (Variable *v=first_var; v; v=v->next) |
| 785 |
< |
fprintf(monout, "%s = %08x\n", v->name, v->value); |
| 783 |
> |
else { |
| 784 |
> |
var_map::const_iterator v = vars.begin(), end = vars.end(); |
| 785 |
> |
for (v=vars.begin(); v!=end; ++v) |
| 786 |
> |
fprintf(monout, "%s = %08x\n", v->first.c_str(), v->second); |
| 787 |
> |
} |
| 788 |
|
|
| 789 |
|
} else if (mon_token == T_NAME) { |
| 790 |
< |
char var_name[256]; |
| 839 |
< |
strcpy(var_name, mon_name); |
| 790 |
> |
string var_name = mon_name; |
| 791 |
|
mon_get_token(); |
| 792 |
|
if (mon_token == T_ASSIGN) { |
| 793 |
|
|
| 800 |
|
mon_error("Too many arguments"); |
| 801 |
|
return; |
| 802 |
|
} |
| 803 |
< |
insert_var(var_name)->value = value; |
| 803 |
> |
vars[var_name] = value; |
| 804 |
|
|
| 805 |
|
} else if (mon_token == T_END) { |
| 806 |
|
|
| 807 |
|
// Clear variable |
| 808 |
< |
remove_var(var_name); |
| 808 |
> |
vars.erase(var_name); |
| 809 |
|
|
| 810 |
|
} else |
| 811 |
|
mon_error("'=' expected"); |
| 821 |
|
|
| 822 |
|
static void clear_vars(void) |
| 823 |
|
{ |
| 824 |
< |
Variable *var, *next; |
| 874 |
< |
for (var=first_var; var; var=next) { |
| 875 |
< |
free(var->name); |
| 876 |
< |
next = var->next; |
| 877 |
< |
free(var); |
| 878 |
< |
} |
| 879 |
< |
first_var = NULL; |
| 824 |
> |
vars.clear(); |
| 825 |
|
} |
| 826 |
|
|
| 827 |
|
|
| 1003 |
|
num_cmds = 0; |
| 1004 |
|
cmd_help = NULL; |
| 1005 |
|
|
| 1006 |
< |
mon_add_command("??", mon_cmd_list, "?? Show list of commands\n"); |
| 1007 |
< |
mon_add_command("ver", version, "ver Show version\n"); |
| 1008 |
< |
mon_add_command("?", print_expr, "? expression Calculate expression\n"); |
| 1009 |
< |
mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n"); |
| 1010 |
< |
mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n"); |
| 1011 |
< |
mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n"); |
| 1012 |
< |
mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n"); |
| 1013 |
< |
mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n"); |
| 1014 |
< |
mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n"); |
| 1015 |
< |
mon_add_command("d80", disassemble_8080, "d80 [start [end]] Disassemble 8080 code\n"); |
| 1016 |
< |
mon_add_command("d86", disassemble_80x86, "d86 [start [end]] Disassemble 80x86 code\n"); |
| 1017 |
< |
mon_add_command(":", modify, ": start string Modify memory\n"); |
| 1018 |
< |
mon_add_command("f", fill, "f start end string Fill memory\n"); |
| 1019 |
< |
mon_add_command("y", apply_byte, "y[b|h|w] start end expr Apply expression to memory\n"); |
| 1006 |
> |
mon_add_command("??", mon_cmd_list, "?? Show list of commands\n"); |
| 1007 |
> |
mon_add_command("ver", version, "ver Show version\n"); |
| 1008 |
> |
mon_add_command("?", print_expr, "? expression Calculate expression\n"); |
| 1009 |
> |
mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n"); |
| 1010 |
> |
mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n"); |
| 1011 |
> |
mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n"); |
| 1012 |
> |
mon_add_command("b", binary_dump, "b [start [end]] Binary memory dump\n"); |
| 1013 |
> |
mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n"); |
| 1014 |
> |
mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n"); |
| 1015 |
> |
mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n"); |
| 1016 |
> |
mon_add_command("d80", disassemble_z80, "d80 [start [end]] Disassemble Z80 code\n"); |
| 1017 |
> |
mon_add_command("d86", disassemble_80x86_32, "d86 [start [end]] Disassemble 80x86 (32-bit) code\n"); |
| 1018 |
> |
mon_add_command("d8086", disassemble_80x86_16, "d8086 [start [end]] Disassemble 80x86 (16-bit) code\n"); |
| 1019 |
> |
mon_add_command(":", modify, ": start string Modify memory\n"); |
| 1020 |
> |
mon_add_command("f", fill, "f start end string Fill memory\n"); |
| 1021 |
> |
mon_add_command("y", apply_byte, "y[b|h|w] start end expr Apply expression to memory\n"); |
| 1022 |
|
mon_add_command("yb", apply_byte, NULL); |
| 1023 |
|
mon_add_command("yh", apply_half, NULL); |
| 1024 |
|
mon_add_command("yw", apply_word, NULL); |
| 1025 |
< |
mon_add_command("t", transfer, "t start end dest Transfer memory\n"); |
| 1026 |
< |
mon_add_command("c", compare, "c start end dest Compare memory\n"); |
| 1027 |
< |
mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n"); |
| 1028 |
< |
mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n"); |
| 1029 |
< |
mon_add_command("ls", mon_exec, "ls [args] List directory contents\n"); |
| 1030 |
< |
mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n"); |
| 1031 |
< |
mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n"); |
| 1032 |
< |
mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n"); |
| 1033 |
< |
mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n"); |
| 1034 |
< |
mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n"); |
| 1035 |
< |
mon_add_command("[", load_data, "[ start \"file\" Load data from file\n"); |
| 1036 |
< |
mon_add_command("]", save_data, "] start size \"file\" Save data to file\n"); |
| 1037 |
< |
mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n"); |
| 1038 |
< |
mon_add_command("cv", clear_vars, "cv Clear all variables\n"); |
| 1025 |
> |
mon_add_command("t", transfer, "t start end dest Transfer memory\n"); |
| 1026 |
> |
mon_add_command("c", compare, "c start end dest Compare memory\n"); |
| 1027 |
> |
mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n"); |
| 1028 |
> |
mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n"); |
| 1029 |
> |
mon_add_command("ls", mon_exec, "ls [args] List directory contents\n"); |
| 1030 |
> |
mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n"); |
| 1031 |
> |
mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n"); |
| 1032 |
> |
mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n"); |
| 1033 |
> |
mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n"); |
| 1034 |
> |
mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n"); |
| 1035 |
> |
mon_add_command("[", load_data, "[ start \"file\" Load data from file\n"); |
| 1036 |
> |
mon_add_command("]", save_data, "] start size \"file\" Save data to file\n"); |
| 1037 |
> |
mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n"); |
| 1038 |
> |
mon_add_command("cv", clear_vars, "cv Clear all variables\n"); |
| 1039 |
> |
|
| 1040 |
> |
mon_read_byte = NULL; |
| 1041 |
> |
mon_write_byte = NULL; |
| 1042 |
|
} |
| 1043 |
|
|
| 1044 |
|
|
| 1069 |
|
monout = stdout; |
| 1070 |
|
monerr = stdout; |
| 1071 |
|
|
| 1072 |
< |
if (argc) { |
| 1073 |
< |
// Access real memory if mon was started as "rmon" |
| 1074 |
< |
char *prgname = argv[0]; |
| 1075 |
< |
char *lastslash; |
| 1076 |
< |
if ((lastslash = strrchr(prgname, '/')) != NULL) |
| 1077 |
< |
prgname = lastslash + 1; |
| 1078 |
< |
if (strcmp(prgname, "rmon") == 0) |
| 1072 |
> |
// Make argc/argv point to the actual arguments |
| 1073 |
> |
const char *prg_name = argv[0]; |
| 1074 |
> |
if (argc) |
| 1075 |
> |
argc--; argv++; |
| 1076 |
> |
|
| 1077 |
> |
// Parse arguments |
| 1078 |
> |
mon_macos_mode = false; |
| 1079 |
> |
mon_use_real_mem = false; |
| 1080 |
> |
while (argc > 0) { |
| 1081 |
> |
if (strcmp(argv[0], "-h") == 0 || strcmp(argv[0], "--help") == 0) { |
| 1082 |
> |
printf("Usage: %s [-m] [-r] [command...]\n", prg_name); |
| 1083 |
> |
exit(0); |
| 1084 |
> |
} else if (strcmp(argv[0], "-m") == 0) |
| 1085 |
> |
mon_macos_mode = true; |
| 1086 |
> |
else if (strcmp(argv[0], "-r") == 0) |
| 1087 |
|
mon_use_real_mem = true; |
| 1088 |
+ |
else |
| 1089 |
+ |
break; |
| 1090 |
+ |
argc--; argv++; |
| 1091 |
+ |
} |
| 1092 |
+ |
interactive = (argc == 0); |
| 1093 |
|
|
| 1094 |
< |
// Make argc/argv point to the actual arguments |
| 1095 |
< |
argc--; |
| 1096 |
< |
argv++; |
| 1097 |
< |
interactive = (argc == 0); |
| 1094 |
> |
// Set up memory access functions if not supplied by the user |
| 1095 |
> |
if (mon_read_byte == NULL) { |
| 1096 |
> |
if (mon_use_real_mem) |
| 1097 |
> |
mon_read_byte = mon_read_byte_real; |
| 1098 |
> |
else |
| 1099 |
> |
mon_read_byte = mon_read_byte_buffer; |
| 1100 |
> |
} |
| 1101 |
> |
if (mon_write_byte == NULL) { |
| 1102 |
> |
if (mon_use_real_mem) |
| 1103 |
> |
mon_write_byte = mon_write_byte_real; |
| 1104 |
> |
else |
| 1105 |
> |
mon_write_byte = mon_write_byte_buffer; |
| 1106 |
|
} |
| 1107 |
|
|
| 1108 |
|
// Allocate buffer |
| 1112 |
|
|
| 1113 |
|
// Print banner |
| 1114 |
|
if (interactive) |
| 1115 |
< |
fprintf(monerr, "\n *** mon V%d.%d by Christian Bauer and Marc Hellwig ***\n" |
| 1116 |
< |
" *** Press 'h' for help ***\n\n", VERSION_MAJOR, VERSION_MINOR); |
| 1115 |
> |
fprintf(monerr, "\n *** cxmon V" VERSION " by Christian Bauer and Marc Hellwig ***\n" |
| 1116 |
> |
" *** Press 'h' for help ***\n\n"); |
| 1117 |
> |
} |
| 1118 |
> |
|
| 1119 |
> |
// Clear variables |
| 1120 |
> |
vars.clear(); |
| 1121 |
> |
|
| 1122 |
> |
// In MacOS mode, pull in the lowmem globals as variables |
| 1123 |
> |
if (mon_macos_mode) { |
| 1124 |
> |
const lowmem_info *l = lowmem; |
| 1125 |
> |
while (l->name) { |
| 1126 |
> |
vars[l->name] = l->addr; |
| 1127 |
> |
l++; |
| 1128 |
> |
} |
| 1129 |
|
} |
| 1130 |
|
|
| 1131 |
|
init_abort(); |
