mon/src/mon_cmd.cpp

/*
 *  mon_cmd.cpp - cxmon standard commands
 *
 *  cxmon (C) 1997-2003 Christian Bauer, Marc Hellwig
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "sysdeps.h"

#include <stdlib.h>

#include "mon.h"
#include "mon_cmd.h"
#include "mon_disass.h"

#ifndef VERSION
#define VERSION "3"
#endif


/*
 *  range_args = [expression] [[COMMA] expression] END
 *
 *  Read start address to "adr", end address to "end_adr".
 *  "adr" defaults to '.', "end_adr" defaults to '.'+def_range
 *
 *  true: OK, false: Error
 */

static bool range_args(uintptr *adr, uintptr *end_adr, uint32 def_range)
{
        *adr = mon_dot_address;
        *end_adr = mon_dot_address + def_range;

        if (mon_token == T_END)
                return true;
        else {
                if (!mon_expression(adr))
                        return false;
                *end_adr = *adr + def_range;
                if (mon_token == T_END)
                        return true;
                else {
                        if (mon_token == T_COMMA) mon_get_token();
                        if (!mon_expression(end_adr))
                                return false;
                        return mon_token == T_END;
                }
        }
}


/*
 *  byte_string = (expression | STRING) {COMMA (expression | STRING)} END
 */

static bool byte_string(uint8 *s, uintptr &len)
{
        uintptr value;

        len = 0;
        goto start;

        for (;;) {
                if (mon_token == T_COMMA) {
                        mon_get_token();

start:
                        if (mon_token == T_STRING) {
                                uint8 *p = (uint8 *)mon_string;
                                while ((*s++ = *p++) != 0) ;
                                s--;
                                len += strlen(mon_string);
                                mon_get_token();
                        } else if (mon_expression(&value)) {
                                *s++ = value;
                                len++;
                        } else
                                return false;

                } else if (mon_token == T_END)
                        return true;
                else {
                        mon_error("',' expected");
                        return false;
                }
        }
}


/*
 *  Convert character to printable character
 */

static inline uint8 char2print(uint8 c)
{
        return (c >= 0x20 && c <= 0x7e) ? c : '.';
}


/*
 *  Show version
 *  ver
 */

void version(void)
{
        fprintf(monout, "mon V" VERSION "\n");
}


/*
 *  Redirect output
 *  o [file]
 */

void redir_output(void)
{
        // Close old file
        if (monout != monerr) {
                fclose(monout);
                monout = monerr;
                return;
        }

        // No argument given?
        if (mon_token == T_END)
                return;

        // Otherwise open file
        if (mon_token == T_STRING) {
                mon_get_token();
                if (mon_token != T_END) {
                        mon_error("Too many arguments");
                        return;
                }
                if (!(monout = fopen(mon_string, "w")))
                        mon_error("Unable to open file");
        } else
                mon_error("'\"' around file name expected");
}


/*
 *  Compute and display expression
 *  ? expression
 */

void print_expr(void)
{
        uintptr val;

        if (!mon_expression(&val))
                return;
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }

        if (val > 0x7fffffff) {
                fprintf(monout, "Hex unsigned:  $%08x\n"
                                          "Hex signed  : -$%08x\n"
                                          "Dec unsigned:  %u\n"
                                          "Dec signed  : %d\n", val, -val, val, val);
                fprintf(monout, "Char        : '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val));
        } else {
                fprintf(monout, "Hex : $%08x\n"
                                          "Dec : %d\n", val, val);
                fprintf(monout, "Char: '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val));
        }
}


/*
 *  Execute shell command
 *  \ "command"
 */

void shell_command(void)
{
        if (mon_token != T_STRING) {
                mon_error("'\"' around command expected");
                return;
        }
        mon_get_token();
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }
        system(mon_string);
}


/*
 *  Memory dump
 *  m [start [end]]
 */

#define MEMDUMP_BPL 16  // Bytes per line

void memory_dump(void)
{
        uintptr adr, end_adr;
        uint8 mem[MEMDUMP_BPL + 1];

        mem[MEMDUMP_BPL] = 0;

        if (!range_args(&adr, &end_adr, 16 * MEMDUMP_BPL - 1))  // 16 lines unless end address specified
                return;

        while (adr <= end_adr && !mon_aborted()) {
                fprintf(monout, "%0*lx:", 2 * sizeof(adr), mon_use_real_mem ? adr: adr % mon_mem_size);
                for (int i=0; i<MEMDUMP_BPL; i++, adr++) {
                        if (i % 4 == 0)
                                fprintf(monout, " %08x", mon_read_word(adr));
                        mem[i] = char2print(mon_read_byte(adr));
                }
                fprintf(monout, "  '%s'\n", mem);
        }

        mon_dot_address = adr;
}


/*
 *  ASCII dump
 *  i [start [end]]
 */

#define ASCIIDUMP_BPL 64  // Bytes per line

void ascii_dump(void)
{
        uintptr adr, end_adr;
        uint8 str[ASCIIDUMP_BPL + 1];

        str[ASCIIDUMP_BPL] = 0;

        if (!range_args(&adr, &end_adr, 16 * ASCIIDUMP_BPL - 1))  // 16 lines unless end address specified
                return;

        while (adr <= end_adr && !mon_aborted()) {
                fprintf(monout, "%0*lx:", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                for (int i=0; i<ASCIIDUMP_BPL; i++, adr++)
                        str[i] = char2print(mon_read_byte(adr));
                fprintf(monout, " '%s'\n", str);
        }

        mon_dot_address = adr;
}


/*
 *  Binary dump
 *  b [start [end]]
 */

void binary_dump(void)
{
        uintptr adr, end_adr;
        uint8 str[9];

        str[8] = 0;

        if (!range_args(&adr, &end_adr, 7))  // 8 lines unless end address specified
                return;

        while (adr <= end_adr && !mon_aborted()) {
                fprintf(monout, "%0*lx:", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                uint8 b = mon_read_byte(adr);
                for (int m=0x80, i=0; i<8; m>>=1, i++)
                        str[i] = (b & m) ? '*' : '.';
                fprintf(monout, " '%s'\n", str);
                adr++;
        }

        mon_dot_address = adr;
}


/*
 *  Disassemble
 *  d [start [end]]
 *  d65 [start [end]]
 *  d68 [start [end]]
 *  d80 [start [end]]
 *  d86 [start [end]]
 *  d8086 [start [end]]
 */

enum CPUType {
        CPU_PPC,
        CPU_6502,
        CPU_680x0,
        CPU_Z80,
        CPU_80x86_32,
        CPU_80x86_16,
        CPU_x86_64
};

static void disassemble(CPUType type)
{
        uintptr adr, end_adr;

        if (!range_args(&adr, &end_adr, 16 * 4 - 1))  // 16 lines unless end address specified
                return;

        switch (type) {
                case CPU_PPC:
                        while (adr <= end_adr && !mon_aborted()) {
                                uint32 w = mon_read_word(adr);
                                fprintf(monout, "%0*lx: %08x\t", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size, w);
                                disass_ppc(monout, mon_use_real_mem ? adr : adr % mon_mem_size, w);
                                adr += 4;
                        }
                        break;

                case CPU_6502:
                        while (adr <= end_adr && !mon_aborted()) {
                                uint8 op = mon_read_byte(adr);
                                uint8 lo = mon_read_byte(adr + 1);
                                uint8 hi = mon_read_byte(adr + 2);
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_6502(monout, mon_use_real_mem ? adr : adr % mon_mem_size, op, lo, hi);
                        }
                        break;

                case CPU_680x0:
                        while (adr <= end_adr && !mon_aborted()) {
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_68k(monout, mon_use_real_mem ? adr : adr % mon_mem_size);
                        }
                        break;

                case CPU_Z80:
                        while (adr <= end_adr && !mon_aborted()) {
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_z80(monout, mon_use_real_mem ? adr : adr % mon_mem_size);
                        }
                        break;

                case CPU_x86_64:
                        while (adr <= end_adr && !mon_aborted()) {
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 64);
                        }
                        break;

                case CPU_80x86_32:
                        while (adr <= end_adr && !mon_aborted()) {
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 32);
                        }
                        break;

                case CPU_80x86_16:
                        while (adr <= end_adr && !mon_aborted()) {
                                fprintf(monout, "%0*lx: ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                                adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 16);
                        }
        }

        mon_dot_address = adr;
}

void disassemble_ppc(void)
{
        disassemble(CPU_PPC);
}

void disassemble_6502(void)
{
        disassemble(CPU_6502);
}

void disassemble_680x0(void)
{
        disassemble(CPU_680x0);
}

void disassemble_z80(void)
{
        disassemble(CPU_Z80);
}

void disassemble_80x86_32(void)
{
        disassemble(CPU_80x86_32);
}

void disassemble_80x86_16(void)
{
        disassemble(CPU_80x86_16);
}

void disassemble_x86_64(void)
{
        disassemble(CPU_x86_64);
}


/*
 *  Modify memory
 *  : addr bytestring
 */

void modify(void)
{
        uintptr adr, len, src_adr = 0;
        uint8 str[256];

        if (!mon_expression(&adr))
                return;
        if (!byte_string(str, len))
                return;

        while (src_adr < len)
                mon_write_byte(adr++, str[src_adr++]);

        mon_dot_address = adr;
}


/*
 *  Fill
 *  f start end bytestring
 */

void fill(void)
{
        uintptr adr, end_adr, len, src_adr = 0;
        uint8 str[256];

        if (!mon_expression(&adr))
                return;
        if (!mon_expression(&end_adr))
                return;
        if (!byte_string(str, len))
                return;

        while (adr <= end_adr)
                mon_write_byte(adr++, str[src_adr++ % len]);
}


/*
 *  Transfer memory
 *  t start end dest
 */

void transfer(void)
{
        uintptr adr, end_adr, dest;
        int num;

        if (!mon_expression(&adr))
                return;
        if (!mon_expression(&end_adr))
                return;
        if (!mon_expression(&dest))
                return;
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }

        num = end_adr - adr + 1;

        if (dest < adr)
                for (int i=0; i<num; i++)
                        mon_write_byte(dest++, mon_read_byte(adr++));
        else {
                dest += end_adr - adr;
                for (int i=0; i<num; i++)
                        mon_write_byte(dest--, mon_read_byte(end_adr--));
        }
}


/*
 *  Compare
 *  c start end dest
 */

void compare(void)
{
        uintptr adr, end_adr, dest;
        int num = 0;

        if (!mon_expression(&adr))
                return;
        if (!mon_expression(&end_adr))
                return;
        if (!mon_expression(&dest))
                return;
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }

        while (adr <= end_adr && !mon_aborted()) {
                if (mon_read_byte(adr) != mon_read_byte(dest)) {
                        fprintf(monout, "%0*lx ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                        num++;
                        if (!(num & 7))
                                fputc('\n', monout);
                }
                adr++; dest++;
        }

        if (num & 7)
                fputc('\n', monout);
        fprintf(monout, "%d byte(s) different\n", num);
}


/*
 *  Search for byte string
 *  h start end bytestring
 */

void hunt(void)
{
        uintptr adr, end_adr, len;
        uint8 str[256];
        int num = 0;

        if (!mon_expression(&adr))
                return;
        if (!mon_expression(&end_adr))
                return;
        if (!byte_string(str, len))
                return;

        while ((adr+len-1) <= end_adr && !mon_aborted()) {
                uint32 i;

                for (i=0; i<len; i++)
                        if (mon_read_byte(adr + i) != str[i])
                                break;

                if (i == len) {
                        fprintf(monout, "%0*lx ", 2 * sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
                        num++;
                        if (num == 1)
                                mon_dot_address = adr;
                        if (!(num & 7))
                                fputc('\n', monout);
                }
                adr++;
        }

        if (num & 7)
                fputc('\n', monout);
        fprintf(monout, "Found %d occurrences\n", num);
}


/*
 *  Load data
 *  [ start "file"
 */

void load_data(void)
{
        uintptr start_adr;
        FILE *file;
        int fc;

        if (!mon_expression(&start_adr))
                return;
        if (mon_token == T_END) {
                mon_error("Missing file name");
                return;
        }
        if (mon_token != T_STRING) {
                mon_error("'\"' around file name expected");
                return;
        }
        mon_get_token();
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }

        if (!(file = fopen(mon_string, "rb")))
                mon_error("Unable to open file");
        else {
                uintptr adr = start_adr;

                while ((fc = fgetc(file)) != EOF)
                        mon_write_byte(adr++, fc);
                fclose(file);

                fprintf(monerr, "%08x bytes read from %0*lx to %0*lx\n", adr - start_adr, 2 * sizeof(adr), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, 2 * sizeof(adr), mon_use_real_mem ? adr-1 : (adr-1) % mon_mem_size);
                mon_dot_address = adr;
        }
}


/*
 *  Save data
 *  ] start size "file"
 */

void save_data(void)
{
        uintptr start_adr, size;
        FILE *file;

        if (!mon_expression(&start_adr))
                return;
        if (!mon_expression(&size))
                return;
        if (mon_token == T_END) {
                mon_error("Missing file name");
                return;
        }
        if (mon_token != T_STRING) {
                mon_error("'\"' around file name expected");
                return;
        }
        mon_get_token();
        if (mon_token != T_END) {
                mon_error("Too many arguments");
                return;
        }

        if (!(file = fopen(mon_string, "wb")))
                mon_error("Unable to create file");
        else {
                uintptr adr = start_adr, end_adr = start_adr + size - 1;

                while (adr <= end_adr)
                        fputc(mon_read_byte(adr++), file);
                fclose(file);

                fprintf(monerr, "%08x bytes written from %0*lx to %0*lx\n", size, 2 * sizeof(adr), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, 2 * sizeof(adr), mon_use_real_mem ? end_adr : end_adr % mon_mem_size);
        }
}
Revision:	1.15
Committed:	2003-09-27T20:33:06Z (21 years, 1 month ago) by cebix
Branch:	MAIN
Changes since 1.14:	+1 -1 lines
Log Message:	2002 -> 2003
#	User	Rev	Content
1	cebix	1.1	/*
2	cebix	1.9	* mon_cmd.cpp - cxmon standard commands
3	cebix	1.1	*
4	cebix	1.15	* cxmon (C) 1997-2003 Christian Bauer, Marc Hellwig
5	cebix	1.2	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19	cebix	1.1	*/
20
21	cebix	1.2	#include "sysdeps.h"
22	cebix	1.1
23	cebix	1.4	#include <stdlib.h>
24
25	cebix	1.1	#include "mon.h"
26			#include "mon_cmd.h"
27	cebix	1.7	#include "mon_disass.h"
28	cebix	1.1
29	hellwig	1.6	#ifndef VERSION
30	cebix	1.12	#define VERSION "3"
31	hellwig	1.6	#endif
32
33	cebix	1.1
34			/*
35			* range_args = [expression] [[COMMA] expression] END
36			*
37			* Read start address to "adr", end address to "end_adr".
38			* "adr" defaults to '.', "end_adr" defaults to '.'+def_range
39			*
40			* true: OK, false: Error
41			*/
42
43	gbeauche	1.11	static bool range_args(uintptr adr, uintptr end_adr, uint32 def_range)
44	cebix	1.1	{
45			*adr = mon_dot_address;
46			*end_adr = mon_dot_address + def_range;
47
48			if (mon_token == T_END)
49			return true;
50			else {
51			if (!mon_expression(adr))
52			return false;
53			end_adr = adr + def_range;
54			if (mon_token == T_END)
55			return true;
56			else {
57			if (mon_token == T_COMMA) mon_get_token();
58			if (!mon_expression(end_adr))
59			return false;
60			return mon_token == T_END;
61			}
62			}
63			}
64
65
66			/*
67			* byte_string = (expression \| STRING) {COMMA (expression \| STRING)} END
68			*/
69
70	gbeauche	1.11	static bool byte_string(uint8 *s, uintptr &len)
71	cebix	1.1	{
72	gbeauche	1.11	uintptr value;
73	cebix	1.1
74			len = 0;
75			goto start;
76
77			for (;;) {
78			if (mon_token == T_COMMA) {
79			mon_get_token();
80
81			start:
82			if (mon_token == T_STRING) {
83			uint8 p = (uint8 )mon_string;
84			while ((s++ = p++) != 0) ;
85			s--;
86			len += strlen(mon_string);
87			mon_get_token();
88			} else if (mon_expression(&value)) {
89			*s++ = value;
90			len++;
91			} else
92			return false;
93
94			} else if (mon_token == T_END)
95			return true;
96			else {
97			mon_error("',' expected");
98			return false;
99			}
100			}
101			}
102
103
104			/*
105			* Convert character to printable character
106			*/
107
108			static inline uint8 char2print(uint8 c)
109			{
110			return (c >= 0x20 && c <= 0x7e) ? c : '.';
111			}
112
113
114			/*
115			* Show version
116			* ver
117			*/
118
119			void version(void)
120			{
121	cebix	1.5	fprintf(monout, "mon V" VERSION "\n");
122	cebix	1.1	}
123
124
125			/*
126			* Redirect output
127			* o [file]
128			*/
129
130			void redir_output(void)
131			{
132			// Close old file
133			if (monout != monerr) {
134			fclose(monout);
135			monout = monerr;
136			return;
137			}
138
139			// No argument given?
140			if (mon_token == T_END)
141			return;
142
143			// Otherwise open file
144			if (mon_token == T_STRING) {
145			mon_get_token();
146			if (mon_token != T_END) {
147			mon_error("Too many arguments");
148			return;
149			}
150			if (!(monout = fopen(mon_string, "w")))
151			mon_error("Unable to open file");
152			} else
153			mon_error("'\"' around file name expected");
154			}
155
156
157			/*
158			* Compute and display expression
159			* ? expression
160			*/
161
162			void print_expr(void)
163			{
164	gbeauche	1.11	uintptr val;
165	cebix	1.1
166			if (!mon_expression(&val))
167			return;
168			if (mon_token != T_END) {
169			mon_error("Too many arguments");
170			return;
171			}
172
173			if (val > 0x7fffffff) {
174	cebix	1.3	fprintf(monout, "Hex unsigned: $%08x\n"
175			"Hex signed : -$%08x\n"
176			"Dec unsigned: %u\n"
177			"Dec signed : %d\n", val, -val, val, val);
178	cebix	1.1	fprintf(monout, "Char : '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val));
179			} else {
180	cebix	1.3	fprintf(monout, "Hex : $%08x\n"
181			"Dec : %d\n", val, val);
182	cebix	1.1	fprintf(monout, "Char: '%c%c%c%c'\n", char2print(val >> 24), char2print(val >> 16), char2print(val >> 8), char2print(val));
183			}
184			}
185
186
187			/*
188			* Execute shell command
189			* \ "command"
190			*/
191
192			void shell_command(void)
193			{
194			if (mon_token != T_STRING) {
195			mon_error("'\"' around command expected");
196			return;
197			}
198			mon_get_token();
199			if (mon_token != T_END) {
200			mon_error("Too many arguments");
201			return;
202			}
203			system(mon_string);
204			}
205
206
207			/*
208			* Memory dump
209			* m [start [end]]
210			*/
211
212			#define MEMDUMP_BPL 16 // Bytes per line
213
214			void memory_dump(void)
215			{
216	gbeauche	1.11	uintptr adr, end_adr;
217	cebix	1.1	uint8 mem[MEMDUMP_BPL + 1];
218
219			mem[MEMDUMP_BPL] = 0;
220
221			if (!range_args(&adr, &end_adr, 16 * MEMDUMP_BPL - 1)) // 16 lines unless end address specified
222			return;
223
224			while (adr <= end_adr && !mon_aborted()) {
225	gbeauche	1.11	fprintf(monout, "%0lx:", 2 sizeof(adr), mon_use_real_mem ? adr: adr % mon_mem_size);
226	cebix	1.1	for (int i=0; i<MEMDUMP_BPL; i++, adr++) {
227			if (i % 4 == 0)
228	cebix	1.3	fprintf(monout, " %08x", mon_read_word(adr));
229	cebix	1.1	mem[i] = char2print(mon_read_byte(adr));
230			}
231			fprintf(monout, " '%s'\n", mem);
232			}
233
234			mon_dot_address = adr;
235			}
236
237
238			/*
239			* ASCII dump
240			* i [start [end]]
241			*/
242
243			#define ASCIIDUMP_BPL 64 // Bytes per line
244
245			void ascii_dump(void)
246			{
247	gbeauche	1.11	uintptr adr, end_adr;
248	cebix	1.1	uint8 str[ASCIIDUMP_BPL + 1];
249
250			str[ASCIIDUMP_BPL] = 0;
251
252			if (!range_args(&adr, &end_adr, 16 * ASCIIDUMP_BPL - 1)) // 16 lines unless end address specified
253			return;
254
255			while (adr <= end_adr && !mon_aborted()) {
256	gbeauche	1.13	fprintf(monout, "%0lx:", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
257	cebix	1.1	for (int i=0; i<ASCIIDUMP_BPL; i++, adr++)
258			str[i] = char2print(mon_read_byte(adr));
259			fprintf(monout, " '%s'\n", str);
260	cebix	1.5	}
261
262			mon_dot_address = adr;
263			}
264
265
266			/*
267			* Binary dump
268			* b [start [end]]
269			*/
270
271			void binary_dump(void)
272			{
273	gbeauche	1.11	uintptr adr, end_adr;
274	cebix	1.5	uint8 str[9];
275
276			str[8] = 0;
277
278			if (!range_args(&adr, &end_adr, 7)) // 8 lines unless end address specified
279			return;
280
281			while (adr <= end_adr && !mon_aborted()) {
282	gbeauche	1.13	fprintf(monout, "%0lx:", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
283	cebix	1.5	uint8 b = mon_read_byte(adr);
284			for (int m=0x80, i=0; i<8; m>>=1, i++)
285			str[i] = (b & m) ? '*' : '.';
286			fprintf(monout, " '%s'\n", str);
287			adr++;
288	cebix	1.1	}
289
290			mon_dot_address = adr;
291			}
292
293
294			/*
295			* Disassemble
296			* d [start [end]]
297			* d65 [start [end]]
298			* d68 [start [end]]
299			* d80 [start [end]]
300			* d86 [start [end]]
301	cebix	1.9	* d8086 [start [end]]
302	cebix	1.1	*/
303
304			enum CPUType {
305			CPU_PPC,
306			CPU_6502,
307			CPU_680x0,
308	cebix	1.9	CPU_Z80,
309	cebix	1.8	CPU_80x86_32,
310	gbeauche	1.13	CPU_80x86_16,
311			CPU_x86_64
312	cebix	1.1	};
313
314			static void disassemble(CPUType type)
315			{
316	gbeauche	1.11	uintptr adr, end_adr;
317	cebix	1.1
318			if (!range_args(&adr, &end_adr, 16 * 4 - 1)) // 16 lines unless end address specified
319			return;
320
321			switch (type) {
322			case CPU_PPC:
323			while (adr <= end_adr && !mon_aborted()) {
324			uint32 w = mon_read_word(adr);
325	gbeauche	1.13	fprintf(monout, "%0lx: %08x\t", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size, w);
326	cebix	1.1	disass_ppc(monout, mon_use_real_mem ? adr : adr % mon_mem_size, w);
327			adr += 4;
328			}
329			break;
330
331			case CPU_6502:
332			while (adr <= end_adr && !mon_aborted()) {
333			uint8 op = mon_read_byte(adr);
334			uint8 lo = mon_read_byte(adr + 1);
335			uint8 hi = mon_read_byte(adr + 2);
336	gbeauche	1.13	fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
337	cebix	1.1	adr += disass_6502(monout, mon_use_real_mem ? adr : adr % mon_mem_size, op, lo, hi);
338			}
339			break;
340
341			case CPU_680x0:
342			while (adr <= end_adr && !mon_aborted()) {
343	gbeauche	1.13	fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
344	cebix	1.7	adr += disass_68k(monout, mon_use_real_mem ? adr : adr % mon_mem_size);
345	cebix	1.1	}
346			break;
347
348	cebix	1.9	case CPU_Z80:
349	cebix	1.1	while (adr <= end_adr && !mon_aborted()) {
350	gbeauche	1.13	fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
351	cebix	1.9	adr += disass_z80(monout, mon_use_real_mem ? adr : adr % mon_mem_size);
352	cebix	1.1	}
353			break;
354
355	gbeauche	1.13	case CPU_x86_64:
356			while (adr <= end_adr && !mon_aborted()) {
357			fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
358			adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 64);
359			}
360			break;
361
362	cebix	1.8	case CPU_80x86_32:
363	cebix	1.1	while (adr <= end_adr && !mon_aborted()) {
364	gbeauche	1.13	fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
365			adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 32);
366	cebix	1.8	}
367			break;
368
369			case CPU_80x86_16:
370			while (adr <= end_adr && !mon_aborted()) {
371	gbeauche	1.13	fprintf(monout, "%0lx: ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
372			adr += disass_x86(monout, mon_use_real_mem ? adr : adr % mon_mem_size, 16);
373	cebix	1.1	}
374			}
375
376			mon_dot_address = adr;
377			}
378
379			void disassemble_ppc(void)
380			{
381			disassemble(CPU_PPC);
382			}
383
384			void disassemble_6502(void)
385			{
386			disassemble(CPU_6502);
387			}
388
389			void disassemble_680x0(void)
390			{
391			disassemble(CPU_680x0);
392			}
393
394	cebix	1.9	void disassemble_z80(void)
395	cebix	1.1	{
396	cebix	1.9	disassemble(CPU_Z80);
397	cebix	1.1	}
398
399	cebix	1.8	void disassemble_80x86_32(void)
400			{
401			disassemble(CPU_80x86_32);
402			}
403
404			void disassemble_80x86_16(void)
405	cebix	1.1	{
406	cebix	1.8	disassemble(CPU_80x86_16);
407	cebix	1.1	}
408
409	gbeauche	1.13	void disassemble_x86_64(void)
410			{
411			disassemble(CPU_x86_64);
412			}
413
414	cebix	1.1
415			/*
416			* Modify memory
417			* : addr bytestring
418			*/
419
420			void modify(void)
421			{
422	gbeauche	1.11	uintptr adr, len, src_adr = 0;
423	cebix	1.1	uint8 str[256];
424
425			if (!mon_expression(&adr))
426			return;
427			if (!byte_string(str, len))
428			return;
429
430			while (src_adr < len)
431			mon_write_byte(adr++, str[src_adr++]);
432
433			mon_dot_address = adr;
434			}
435
436
437			/*
438			* Fill
439			* f start end bytestring
440			*/
441
442			void fill(void)
443			{
444	gbeauche	1.11	uintptr adr, end_adr, len, src_adr = 0;
445	cebix	1.1	uint8 str[256];
446
447			if (!mon_expression(&adr))
448			return;
449			if (!mon_expression(&end_adr))
450			return;
451			if (!byte_string(str, len))
452			return;
453
454			while (adr <= end_adr)
455			mon_write_byte(adr++, str[src_adr++ % len]);
456			}
457
458
459			/*
460			* Transfer memory
461			* t start end dest
462			*/
463
464			void transfer(void)
465			{
466	gbeauche	1.11	uintptr adr, end_adr, dest;
467	cebix	1.1	int num;
468
469			if (!mon_expression(&adr))
470			return;
471			if (!mon_expression(&end_adr))
472			return;
473			if (!mon_expression(&dest))
474			return;
475			if (mon_token != T_END) {
476			mon_error("Too many arguments");
477			return;
478			}
479
480			num = end_adr - adr + 1;
481
482			if (dest < adr)
483			for (int i=0; i<num; i++)
484			mon_write_byte(dest++, mon_read_byte(adr++));
485			else {
486			dest += end_adr - adr;
487			for (int i=0; i<num; i++)
488			mon_write_byte(dest--, mon_read_byte(end_adr--));
489			}
490			}
491
492
493			/*
494			* Compare
495			* c start end dest
496			*/
497
498			void compare(void)
499			{
500	gbeauche	1.11	uintptr adr, end_adr, dest;
501	cebix	1.1	int num = 0;
502
503			if (!mon_expression(&adr))
504			return;
505			if (!mon_expression(&end_adr))
506			return;
507			if (!mon_expression(&dest))
508			return;
509			if (mon_token != T_END) {
510			mon_error("Too many arguments");
511			return;
512			}
513
514			while (adr <= end_adr && !mon_aborted()) {
515			if (mon_read_byte(adr) != mon_read_byte(dest)) {
516	gbeauche	1.13	fprintf(monout, "%0lx ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
517	cebix	1.1	num++;
518			if (!(num & 7))
519			fputc('\n', monout);
520			}
521			adr++; dest++;
522			}
523
524			if (num & 7)
525			fputc('\n', monout);
526			fprintf(monout, "%d byte(s) different\n", num);
527			}
528
529
530			/*
531			* Search for byte string
532			* h start end bytestring
533			*/
534
535			void hunt(void)
536			{
537	gbeauche	1.11	uintptr adr, end_adr, len;
538	cebix	1.1	uint8 str[256];
539			int num = 0;
540
541			if (!mon_expression(&adr))
542			return;
543			if (!mon_expression(&end_adr))
544			return;
545			if (!byte_string(str, len))
546			return;
547
548			while ((adr+len-1) <= end_adr && !mon_aborted()) {
549			uint32 i;
550
551			for (i=0; i<len; i++)
552			if (mon_read_byte(adr + i) != str[i])
553			break;
554
555			if (i == len) {
556	gbeauche	1.13	fprintf(monout, "%0lx ", 2 sizeof(adr), mon_use_real_mem ? adr : adr % mon_mem_size);
557	cebix	1.1	num++;
558			if (num == 1)
559			mon_dot_address = adr;
560			if (!(num & 7))
561			fputc('\n', monout);
562			}
563			adr++;
564			}
565
566			if (num & 7)
567			fputc('\n', monout);
568			fprintf(monout, "Found %d occurrences\n", num);
569			}
570
571
572			/*
573			* Load data
574			* [ start "file"
575			*/
576
577			void load_data(void)
578			{
579	gbeauche	1.11	uintptr start_adr;
580	cebix	1.1	FILE *file;
581			int fc;
582
583			if (!mon_expression(&start_adr))
584			return;
585			if (mon_token == T_END) {
586			mon_error("Missing file name");
587			return;
588			}
589			if (mon_token != T_STRING) {
590			mon_error("'\"' around file name expected");
591			return;
592			}
593			mon_get_token();
594			if (mon_token != T_END) {
595			mon_error("Too many arguments");
596			return;
597			}
598
599			if (!(file = fopen(mon_string, "rb")))
600			mon_error("Unable to open file");
601			else {
602	gbeauche	1.11	uintptr adr = start_adr;
603	cebix	1.1
604			while ((fc = fgetc(file)) != EOF)
605			mon_write_byte(adr++, fc);
606			fclose(file);
607
608	gbeauche	1.13	fprintf(monerr, "%08x bytes read from %0lx to %0lx\n", adr - start_adr, 2 * sizeof(adr), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, 2 * sizeof(adr), mon_use_real_mem ? adr-1 : (adr-1) % mon_mem_size);
609	cebix	1.1	mon_dot_address = adr;
610			}
611			}
612
613
614			/*
615			* Save data
616			* ] start size "file"
617			*/
618
619			void save_data(void)
620			{
621	gbeauche	1.11	uintptr start_adr, size;
622	cebix	1.1	FILE *file;
623
624			if (!mon_expression(&start_adr))
625			return;
626			if (!mon_expression(&size))
627			return;
628			if (mon_token == T_END) {
629			mon_error("Missing file name");
630			return;
631			}
632			if (mon_token != T_STRING) {
633			mon_error("'\"' around file name expected");
634			return;
635			}
636			mon_get_token();
637			if (mon_token != T_END) {
638			mon_error("Too many arguments");
639			return;
640			}
641
642			if (!(file = fopen(mon_string, "wb")))
643			mon_error("Unable to create file");
644			else {
645	gbeauche	1.11	uintptr adr = start_adr, end_adr = start_adr + size - 1;
646	cebix	1.1
647			while (adr <= end_adr)
648			fputc(mon_read_byte(adr++), file);
649			fclose(file);
650
651	cebix	1.14	fprintf(monerr, "%08x bytes written from %0lx to %0lx\n", size, 2 * sizeof(adr), mon_use_real_mem ? start_adr : start_adr % mon_mem_size, 2 * sizeof(adr), mon_use_real_mem ? end_adr : end_adr % mon_mem_size);
652	cebix	1.1	}
653			}