[ViewVC] Diff of: cebix/mon/src/mon.cpp

Comparing mon/src/mon.cpp (file contents):
Revision 1.1.1.1 by cebix, 1999-10-04T19:31:09Z vs.
Revision 1.26 by cebix, 2007-01-21T17:32:05Z

#	Line 1 \| Line 1
1		/*
2	<	* mon.cpp - Machine language monitor
2	>	* mon.cpp - cxmon main program
3		*
4	<	* (C) 1997-1999 Christian Bauer
4	>	* cxmon (C) 1997-2004 Christian Bauer, Marc Hellwig
5	>	*
6	>	* This program is free software; you can redistribute it and/or modify
7	>	* it under the terms of the GNU General Public License as published by
8	>	* the Free Software Foundation; either version 2 of the License, or
9	>	* (at your option) any later version.
10	>	*
11	>	* This program is distributed in the hope that it will be useful,
12	>	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	>	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	>	* GNU General Public License for more details.
15	>	*
16	>	* You should have received a copy of the GNU General Public License
17	>	* along with this program; if not, write to the Free Software
18	>	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19		*/
20
21	<	#include <sys/types.h>
22	<	#include <netinet/in.h>
21	>	#include "sysdeps.h"
22	>
23		#include <stdio.h>
24		#include <stdlib.h>
11	–	#include <string.h>
25		#include <signal.h>
26		#include <ctype.h>
27	<	#include <unistd.h>
28	<	#include <errno.h>
27	>	#include <string>
28	>	#include <map>
29
30	+	#if defined(HAVE_READLINE_H)
31		extern "C" {
32	<	extern char readline(char prompt);
19	<	extern void add_history(char *str);
32	>	#include <readline.h>
33		}
34	+	#elif defined(HAVE_READLINE_READLINE_H)
35	+	extern "C" {
36	+	#include <readline/readline.h>
37	+	}
38	+	#endif
39	+
40	+	#if defined(HAVE_HISTORY_H)
41	+	extern "C" {
42	+	#include <history.h>
43	+	}
44	+	#elif defined(HAVE_READLINE_HISTORY_H)
45	+	extern "C" {
46	+	#include <readline/history.h>
47	+	}
48	+	#endif
49
50		#include "mon.h"
51		#include "mon_cmd.h"
52	+	#include "mon_lowmem.h"
53	+
54	+	#ifndef VERSION
55	+	#define VERSION "3"
56	+	#endif
57
58
59		// Buffer we're operating on
#	Line 33 \| Line 66 \| *static uint8 mem;**
66		FILE monin, monout, *monerr;
67
68		// Input line
69	<	static char input[INPUT_LENGTH];
69	>	static char *input;
70		static char *in_ptr;
71		char *mon_args_ptr;
72
73		// Current address, value of '.' in expressions
74	<	uint32 mon_dot_address;
74	>	uintptr mon_dot_address;
75
76		// Current value of ':' in expression
77		static uint32 colon_value;
78
79
80		// Scanner variables
81	<	enum Token mon_token; // Last token read
82	<	uint32 mon_number; // Contains the number if mon_token==T_NUMBER
83	<	char mon_string[INPUT_LENGTH]; // Contains the string if mon_token==T_STRING
84	<	char mon_name[INPUT_LENGTH]; // Contains the variable name if mon_token==T_NAME
81	>	enum Token mon_token; // Last token read
82	>	uintptr mon_number; // Contains the number if mon_token==T_NUMBER
83	>	char *mon_string; // Contains the string if mon_token==T_STRING
84	>	char *mon_name; // Contains the variable name if mon_token==T_NAME
85
86
87		// List of installed commands
88		struct CmdSpec {
89	<	const char *name; // Name of command
90	<	void (*func)(void); // Function that executes this command
89	>	const char *name; // Name of command
90	>	void (*func)(); // Function that executes this command
91		};
92
93	<	static CmdSpec *cmds; // Array of CmdSpecs
94	<	static int num_cmds; // Number of installed commands
95	<	static char *cmd_help; // Help text for commands
93	>	static CmdSpec *cmds; // Array of CmdSpecs
94	>	static int num_cmds; // Number of installed commands
95	>	static char *cmd_help; // Help text for commands
96
97
98		// List of variables
99	<	struct Variable {
100	<	Variable *next; // Pointer to next variable (must be first element of struct)
68	<	char *name; // Variable name
69	<	uint32 value; // Variable value
70	<	};
71	<
72	<	static Variable *first_var; // Pointer to first variable
99	>	typedef std::map<std::string, uintptr> var_map;
100	>	static var_map vars;
101
102
103		// Prototypes
104	<	static void init_abort(void);
105	<	static void exit_abort(void);
104	>	static void init_abort();
105	>	static void exit_abort();
106
107		static void read_line(char *prompt); // Scanner
108	<	static char get_char(void);
108	>	static char get_char();
109		static void put_back(char c);
110	<	static enum Token get_hex_number(uint32 &i);
111	<	static enum Token get_dec_number(uint32 &i);
112	<	static enum Token get_char_number(uint32 &i);
113	<	static enum Token get_string(char *str);
114	<	static enum Token get_hex_or_name(uint32 &i, char *name);
115	<
116	<	static bool eor_expr(uint32 *number); // Parser
117	<	static bool and_expr(uint32 *number);
118	<	static bool shift_expr(uint32 *number);
119	<	static bool add_expr(uint32 *number);
120	<	static bool mul_expr(uint32 *number);
121	<	static bool factor(uint32 *number);
94	<	static Variable lookup_var(const char s);
95	<	static Variable insert_var(const char s);
96	<	static void remove_var(const char *s);
110	>	static enum Token get_hex_number(uintptr &i);
111	>	static enum Token get_dec_number(uintptr &i);
112	>	static enum Token get_char_number(uintptr &i);
113	>	static enum Token get_string(char *&str);
114	>	static enum Token get_hex_or_name(uintptr &i, char *&name);
115	>
116	>	static bool eor_expr(uintptr *number); // Parser
117	>	static bool and_expr(uintptr *number);
118	>	static bool shift_expr(uintptr *number);
119	>	static bool add_expr(uintptr *number);
120	>	static bool mul_expr(uintptr *number);
121	>	static bool factor(uintptr *number);
122
123
124		/*
125		* Add command to mon
126		*/
127
128	<	void mon_add_command(const char name, void (func)(void), const char *help_text)
128	>	void mon_add_command(const char name, void (func)(), const char *help_text)
129		{
130		num_cmds++;
131		if (cmds)
#	Line 145 \| Line 170 \| static void handle_abort(int sig)
170		was_aborted = true;
171		}
172
173	<	static void init_abort(void)
173	>	static void init_abort()
174		{
175		was_aborted = false;
176		sigemptyset(&my_sa.sa_mask);
#	Line 159 \| Line 184 \| static void init_abort(void)
184		sigaction(SIGINT, &my_sa, NULL);
185		}
186
187	<	static void exit_abort(void)
187	>	static void exit_abort()
188		{
189		my_sa.sa_handler = SIG_DFL;
190		sigaction(SIGINT, &my_sa, NULL);
191		}
192
193	<	bool mon_aborted(void)
193	>	bool mon_aborted()
194		{
195		bool ret = was_aborted;
196		was_aborted = false;
#	Line 177 \| Line 202 \| bool mon_aborted(void)
202		* Access to buffer
203		*/
204
205	<	uint32 mon_read_byte(uint32 adr)
205	>	uint32 (*mon_read_byte)(uintptr adr);
206	>
207	>	uint32 mon_read_byte_buffer(uintptr adr)
208		{
209	<	if (mon_use_real_mem)
183	<	return (uint8 )adr;
184	<	else
185	<	return mem[adr % mon_mem_size];
209	>	return mem[adr % mon_mem_size];
210		}
211
212	<	void mon_write_byte(uint32 adr, uint32 b)
212	>	uint32 mon_read_byte_real(uintptr adr)
213		{
214	<	if (mon_use_real_mem)
191	<	(uint8 )adr = b;
192	<	else
193	<	mem[adr % mon_mem_size] = b;
214	>	return (uint8 )adr;
215		}
216
217	<	uint32 mon_read_half(uint32 adr)
217	>	void (*mon_write_byte)(uintptr adr, uint32 b);
218	>
219	>	void mon_write_byte_buffer(uintptr adr, uint32 b)
220		{
221	<	if (mon_use_real_mem)
199	<	return ntohs((uint16 )adr);
200	<	else
201	<	return mem[adr % mon_mem_size] << 8 \| mem[(adr+1) % mon_mem_size];
221	>	mem[adr % mon_mem_size] = b;
222		}
223
224	<	void mon_write_half(uint32 adr, uint32 w)
224	>	void mon_write_byte_real(uintptr adr, uint32 b)
225		{
226	<	if (mon_use_real_mem)
207	<	(uint16 )adr = htons(w);
208	<	else {
209	<	mem[adr % mon_mem_size] = w >> 8;
210	<	mem[(adr+1) % mon_mem_size] = w;
211	<	}
226	>	(uint8 )adr = b;
227		}
228
229	<	uint32 mon_read_word(uint32 adr)
229	>	uint32 mon_read_half(uintptr adr)
230		{
231	<	if (mon_use_real_mem)
217	<	return ntohl((uint32 )adr);
218	<	else
219	<	return mon_read_byte(adr) << 24 \| mon_read_byte(adr+1) << 16 \| mon_read_byte(adr+2) << 8 \| mon_read_byte(adr+3);
231	>	return (mon_read_byte(adr) << 8) \| mon_read_byte(adr+1);
232		}
233
234	<	void mon_write_word(uint32 adr, uint32 l)
234	>	void mon_write_half(uintptr adr, uint32 w)
235		{
236	<	if (mon_use_real_mem)
237	<	(uint32 )adr = htonl(l);
238	<	else {
239	<	mem[adr % mon_mem_size] = l >> 24;
240	<	mem[(adr+1) % mon_mem_size] = l >> 16;
241	<	mem[(adr+2) % mon_mem_size] = l >> 8;
242	<	mem[(adr+3) % mon_mem_size] = l;
243	<	}
236	>	mon_write_byte(adr, w >> 8);
237	>	mon_write_byte(adr+1, w);
238	>	}
239	>
240	>	uint32 mon_read_word(uintptr adr)
241	>	{
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	>	void mon_write_word(uintptr adr, uint32 l)
246	>	{
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
253
#	Line 238 \| Line 257 \| void mon_write_word(uint32 adr, uint32 l
257
258		static void read_line(char *prompt)
259		{
260	<	static char *line_read = NULL;
261	<
262	<	if (line_read) {
263	<	free(line_read);
264	<	line_read = NULL;
260	>	#ifdef HAVE_LIBREADLINE
261	>	if (input)
262	>	free(input);
263	>	input = readline(prompt);
264	>
265	>	if (input) {
266	>	if (*input)
267	>	add_history(input);
268	>	} else {
269	>	// EOF, quit cxmon
270	>	input = (char *)malloc(2);
271	>	input[0] = 'x';
272	>	input[1] = 0;
273	>	fprintf(monout, "x\n");
274		}
275
276	<	line_read = readline(prompt);
277	<
278	<	if (line_read && *line_read)
279	<	add_history(line_read);
280	<
281	<	strncpy(in_ptr = input, line_read, INPUT_LENGTH);
282	<	input[INPUT_LENGTH-1] = 0;
276	>	in_ptr = input;
277	>	#else
278	>	static const unsigned INPUT_LENGTH = 256;
279	>	if (!input)
280	>	input = (char *)malloc(INPUT_LENGTH);
281	>	fprintf(monout, prompt);
282	>	fflush(monout);
283	>	fgets(in_ptr = input, INPUT_LENGTH, monin);
284	>	char *s = strchr(input, '\n');
285	>	if (s != NULL)
286	>	*s = 0;
287	>	#endif
288		}
289
290
#	Line 259 \| Line 292 \| *static void read_line(char prompt)**
292		* Read a character from the input line
293		*/
294
295	<	static char get_char(void)
295	>	static char get_char()
296		{
297		return *in_ptr++;
298		}
#	Line 279 \| Line 312 \| static void put_back(char c)
312		* Scanner: Get a token from the input line
313		*/
314
315	<	enum Token mon_get_token(void)
315	>	enum Token mon_get_token()
316		{
317	<	char c;
317	>	char c = get_char();
318
319		// Skip spaces
320	<	while ((c = get_char()) == ' ') ;
320	>	while (isspace(c))
321	>	c = get_char();
322
323		switch (c) {
324		case 0:
#	Line 357 \| Line 391 \| enum Token mon_get_token(void)
391		}
392		}
393
394	<	static enum Token get_hex_number(uint32 &i)
394	>	static enum Token get_hex_number(uintptr &i)
395		{
396		char c = get_char();
397
#	Line 366 \| Line 400 \| static enum Token get_hex_number(uint32
400		return T_NULL;
401
402		do {
403	+	c = tolower(c);
404		if (c < 'a')
405		i = (i << 4) + (c - '0');
406		else
#	Line 381 \| Line 416 \| static enum Token get_hex_number(uint32
416		}
417		}
418
419	<	static enum Token get_dec_number(uint32 &i)
419	>	static enum Token get_dec_number(uintptr &i)
420		{
421		char c = get_char();
422
#	Line 402 \| Line 437 \| static enum Token get_dec_number(uint32
437		}
438		}
439
440	<	static enum Token get_char_number(uint32 &i)
440	>	static enum Token get_char_number(uintptr &i)
441		{
442		char c;
443
#	Line 417 \| Line 452 \| static enum Token get_char_number(uint32
452		return T_NULL;
453		}
454
455	<	static enum Token get_string(char *str)
455	>	static enum Token get_string(char *&str)
456		{
457	<	char c;
457	>	// Remember start of string
458	>	char *old_in_ptr = in_ptr;
459
460	+	// Determine string length
461	+	char c;
462	+	unsigned n = 0;
463		while ((c = get_char()) != 0) {
464	<	if (c == '"') {
465	<	*str = 0;
466	<	return T_STRING;
467	<	}
468	<	*str++ = c;
464	>	n++;
465	>	if (c == '"')
466	>	break;
467	>	}
468	>	if (c == 0) {
469	>	mon_error("Unterminated string");
470	>	return T_NULL;
471		}
472
473	<	mon_error("Unterminated string");
474	<	return T_NULL;
473	>	// Allocate new buffer (n: size needed including terminating 0)
474	>	str = (char *)realloc(str, n);
475	>
476	>	// Copy string to buffer
477	>	char *p = str;
478	>	in_ptr = old_in_ptr;
479	>	while (--n)
480	>	*p++ = get_char();
481	>	*p++ = 0;
482	>	get_char(); // skip closing '"'
483	>	return T_STRING;
484		}
485
486	<	static enum Token get_hex_or_name(uint32 &i, char *name)
486	>	static enum Token get_hex_or_name(uintptr &i, char *&name)
487		{
488	+	// Remember start of token
489		char *old_in_ptr = in_ptr;
439	–	char c;
490
491		// Try hex number first
492		if (get_hex_number(i) == T_NUMBER)
493		return T_NUMBER;
494
495	<	// Not a hex number, must be a variable name
495	>	// Not a hex number, must be a variable name; determine its length
496		in_ptr = old_in_ptr;
497	<	c = get_char();
497	>	char c = get_char();
498	>	unsigned n = 1;
499		do {
500	<	*name++ = c;
500	>	n++;
501		c = get_char();
502		} while (isalnum(c));
503
504	<	*name = 0;
505	<	put_back(c);
504	>	// Allocate new buffer (n: size needed including terminating 0)
505	>	name = (char *)realloc(name, n);
506	>
507	>	// Copy name to buffer
508	>	in_ptr = old_in_ptr;
509	>	char *p = name;
510	>	while (--n)
511	>	*p++ = get_char();
512	>	*p = 0;
513		return T_NAME;
514		}
515
#	Line 461 \| Line 519 \| static enum Token get_hex_or_name(uint32
519		* true: OK, false: Error
520		*/
521
522	<	bool mon_expression(uint32 *number)
522	>	bool mon_expression(uintptr *number)
523		{
524	<	uint32 accu, expr;
524	>	uintptr accu, expr;
525
526		if (!eor_expr(&accu))
527		return false;
#	Line 489 \| Line 547 \| *bool mon_expression(uint32 number)**
547		* true: OK, false: Error
548		*/
549
550	<	static bool eor_expr(uint32 *number)
550	>	static bool eor_expr(uintptr *number)
551		{
552	<	uint32 accu, expr;
552	>	uintptr accu, expr;
553
554		if (!and_expr(&accu))
555		return false;
#	Line 517 \| Line 575 \| *static bool eor_expr(uint32 number)**
575		* true: OK, false: Error
576		*/
577
578	<	static bool and_expr(uint32 *number)
578	>	static bool and_expr(uintptr *number)
579		{
580	<	uint32 accu, expr;
580	>	uintptr accu, expr;
581
582		if (!shift_expr(&accu))
583		return false;
#	Line 545 \| Line 603 \| *static bool and_expr(uint32 number)**
603		* true: OK, false: Error
604		*/
605
606	<	static bool shift_expr(uint32 *number)
606	>	static bool shift_expr(uintptr *number)
607		{
608	<	uint32 accu, expr;
608	>	uintptr accu, expr;
609
610		if (!add_expr(&accu))
611		return false;
#	Line 580 \| Line 638 \| *static bool shift_expr(uint32 number)**
638		* true: OK, false: Error
639		*/
640
641	<	static bool add_expr(uint32 *number)
641	>	static bool add_expr(uintptr *number)
642		{
643	<	uint32 accu, expr;
643	>	uintptr accu, expr;
644
645		if (!mul_expr(&accu))
646		return false;
#	Line 615 \| Line 673 \| *static bool add_expr(uint32 number)**
673		* true: OK, false: Error
674		*/
675
676	<	static bool mul_expr(uint32 *number)
676	>	static bool mul_expr(uintptr *number)
677		{
678	<	uint32 accu, fact;
678	>	uintptr accu, fact;
679
680		if (!factor(&accu))
681		return false;
#	Line 665 \| Line 723 \| *static bool mul_expr(uint32 number)**
723		* true: OK, false: Error
724		*/
725
726	<	static bool factor(uint32 *number)
726	>	static bool factor(uintptr *number)
727		{
728		switch (mon_token) {
729		case T_NUMBER:
#	Line 674 \| Line 732 \| *static bool factor(uint32 number)**
732		return true;
733
734		case T_NAME:{
735	<	Variable *var;
736	<	if ((var = lookup_var(mon_name)) != NULL) {
737	<	*number = var->value;
735	>	var_map::const_iterator v = vars.find(mon_name);
736	>	if (v == vars.end())
737	>	return false;
738	>	else {
739	>	*number = v->second;
740		mon_get_token();
741		return true;
742	<	} else
683	<	return false;
742	>	}
743		}
744
745		case T_DOT:
#	Line 740 \| Line 799 \| *static bool factor(uint32 number)**
799
800
801		/*
743	–	* Lookup the value of a variable
744	–	*/
745	–
746	–	static Variable lookup_var(const char s)
747	–	{
748	–	// Lookup variable
749	–	for (Variable *var=first_var; var; var=var->next)
750	–	if (!strcmp(s, var->name))
751	–	return var;
752	–
753	–	// Not found, error
754	–	mon_error("Undefined variable");
755	–	return NULL;
756	–	}
757	–
758	–
759	–	/*
760	–	* Insert new variable (or redefine old)
761	–	*/
762	–
763	–	static Variable insert_var(const char s)
764	–	{
765	–	// Lookup variable
766	–	for (Variable *var=first_var; var; var=var->next)
767	–	if (!strcmp(s, var->name))
768	–	return var;
769	–
770	–	// Insert new variable
771	–	Variable *var = new Variable;
772	–	var->name = strdup(s);
773	–	var->next = first_var;
774	–	first_var = var;
775	–	return var;
776	–	}
777	–
778	–
779	–	/*
780	–	* Remove variable
781	–	*/
782	–
783	–	static void remove_var(const char *s)
784	–	{
785	–	Variable var, prev = (Variable *)&first_var;
786	–
787	–	// Lookup variable and remove it
788	–	for (var=prev->next; var; prev=var, var=var->next)
789	–	if (!strcmp(s, var->name)) {
790	–	prev->next = var->next;
791	–	free(var->name);
792	–	free(var);
793	–	return;
794	–	}
795	–	}
796	–
797	–
798	–	/*
802		* Set/clear/show variables
803		* set [var[=value]]
804		*/
805
806	<	static void set_var(void)
806	>	static void set_var()
807		{
808		if (mon_token == T_END) {
809
810		// Show all variables
811	<	if (first_var == NULL)
811	>	if (vars.empty())
812		fprintf(monout, "No variables defined\n");
813	<	else
814	<	for (Variable *v=first_var; v; v=v->next)
815	<	fprintf(monout, "%s = %08lx\n", v->name, v->value);
813	>	else {
814	>	var_map::const_iterator v = vars.begin(), end = vars.end();
815	>	for (v=vars.begin(); v!=end; ++v)
816	>	fprintf(monout, "%s = %08lx\n", v->first.c_str(), v->second);
817	>	}
818
819		} else if (mon_token == T_NAME) {
820	<	char var_name[256];
816	<	strcpy(var_name, mon_name);
820	>	std::string var_name = mon_name;
821		mon_get_token();
822		if (mon_token == T_ASSIGN) {
823
824		// Set variable
825	<	uint32 value;
825	>	uintptr value;
826		mon_get_token();
827		if (!mon_expression(&value))
828		return;
#	Line 826 \| Line 830 \| static void set_var(void)
830		mon_error("Too many arguments");
831		return;
832		}
833	<	insert_var(var_name)->value = value;
833	>	vars[var_name] = value;
834
835		} else if (mon_token == T_END) {
836
837		// Clear variable
838	<	remove_var(var_name);
838	>	vars.erase(var_name);
839
840		} else
841		mon_error("'=' expected");
#	Line 845 \| Line 849 \| static void set_var(void)
849		* cv
850		*/
851
852	<	static void clear_vars(void)
852	>	static void clear_vars()
853		{
854	<	Variable var, next;
851	<	for (var=first_var; var; var=next) {
852	<	free(var->name);
853	<	next = var->next;
854	<	free(var);
855	<	}
856	<	first_var = NULL;
854	>	vars.clear();
855		}
856
857
#	Line 862 \| Line 860 \| static void clear_vars(void)
860		* h
861		*/
862
863	<	static void help_or_hunt(void)
863	>	static void help_or_hunt()
864		{
865		if (mon_token != T_END) {
866		hunt();
#	Line 879 \| Line 877 \| static void help_or_hunt(void)
877		* ??
878		*/
879
880	<	static void mon_cmd_list(void)
880	>	static void mon_cmd_list()
881		{
882		for (int i=0; i<num_cmds; i++)
883		fprintf(monout, "%s ", cmds[i].name);
#	Line 892 \| Line 890 \| static void mon_cmd_list(void)
890		* @ [size]
891		*/
892
893	<	static void reallocate(void)
893	>	static void reallocate()
894		{
895	<	uint32 size;
895	>	uintptr size;
896
897		if (mon_use_real_mem) {
898		fprintf(monerr, "Cannot reallocate buffer in real mode\n");
#	Line 902 \| Line 900 \| static void reallocate(void)
900		}
901
902		if (mon_token == T_END) {
903	<	fprintf(monerr, "Buffer size: %08lx bytes\n", mon_mem_size);
903	>	fprintf(monerr, "Buffer size: %08x bytes\n", mon_mem_size);
904		return;
905		}
906
#	Line 914 \| Line 912 \| static void reallocate(void)
912		}
913
914		if ((mem = (uint8 *)realloc(mem, size)) != NULL)
915	<	fprintf(monerr, "Buffer size: %08lx bytes\n", mon_mem_size = size);
915	>	fprintf(monerr, "Buffer size: %08x bytes\n", mon_mem_size = size);
916		else
917		fprintf(monerr, "Unable to reallocate buffer\n");
918		}
#	Line 927 \| Line 925 \| static void reallocate(void)
925
926		static void apply(int size)
927		{
928	<	uint32 adr, end_adr, value;
928	>	uintptr adr, end_adr, value;
929		char c;
930
931		if (!mon_expression(&adr))
#	Line 941 \| Line 939 \| static void apply(int size)
939		return;
940		}
941
942	<	uint32 (*read_func)(uint32 adr);
943	<	void (*write_func)(uint32 adr, uint32 val);
942	>	uint32 (*read_func)(uintptr adr);
943	>	void (*write_func)(uintptr adr, uint32 val);
944		switch (size) {
945		case 1:
946		read_func = mon_read_byte;
#	Line 956 \| Line 954 \| static void apply(int size)
954		read_func = mon_read_word;
955		write_func = mon_write_word;
956		break;
957	+	default:
958	+	abort();
959	+	break;
960		}
961
962		while (adr<=end_adr) {
#	Line 979 \| Line 980 \| static void apply(int size)
980		mon_dot_address = adr;
981		}
982
983	<	static void apply_byte(void)
983	>	static void apply_byte()
984		{
985		apply(1);
986		}
987
988	<	static void apply_half(void)
988	>	static void apply_half()
989		{
990		apply(2);
991		}
992
993	<	static void apply_word(void)
993	>	static void apply_word()
994		{
995		apply(4);
996		}
#	Line 999 \| Line 1000 \| static void apply_word(void)
1000		* Execute command via system() (for ls, rm, etc.)
1001		*/
1002
1003	<	static void mon_exec(void)
1003	>	static void mon_exec()
1004		{
1005		system(input);
1006		}
#	Line 1009 \| Line 1010 \| static void mon_exec(void)
1010		* Change current directory
1011		*/
1012
1013	<	static void mon_change_dir(void)
1013	>	void mon_change_dir()
1014		{
1014	–	char c;
1015		in_ptr = input;
1016	<	while ((c = get_char()) == ' ') ;
1017	<	while ((c = get_char()) != ' ') ;
1018	<	while ((c = get_char()) == ' ') ;
1016	>	char c = get_char();
1017	>	while (isspace(c))
1018	>	c = get_char();
1019	>	while (isgraph(c))
1020	>	c = get_char();
1021	>	while (isspace(c))
1022	>	c = get_char();
1023		put_back(c);
1024		if (chdir(in_ptr) != 0)
1025		mon_error("Cannot change directory");
#	Line 1026 \| Line 1030 \| static void mon_change_dir(void)
1030		* Initialize mon
1031		*/
1032
1033	<	void mon_init(void)
1033	>	void mon_init()
1034		{
1035		cmds = NULL;
1036		num_cmds = 0;
1037		cmd_help = NULL;
1038
1039	<	mon_add_command("??", mon_cmd_list, "?? Show list of commands\n");
1040	<	mon_add_command("ver", version, "ver Show version\n");
1041	<	mon_add_command("?", print_expr, "? expression Calculate expression\n");
1042	<	mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n");
1043	<	mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n");
1044	<	mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n");
1045	<	mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n");
1046	<	mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n");
1047	<	mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n");
1048	<	mon_add_command("d80", disassemble_8080, "d80 [start [end]] Disassemble 8080 code\n");
1049	<	mon_add_command("d86", disassemble_80x86, "d86 [start [end]] Disassemble 80x86 code\n");
1050	<	mon_add_command(":", modify, ": start string Modify memory\n");
1051	<	mon_add_command("f", fill, "f start end string Fill memory\n");
1052	<	mon_add_command("y", apply_byte, "y[b\|h\|w] start end expr Apply expression to memory\n");
1039	>	mon_add_command("??", mon_cmd_list, "?? Show list of commands\n");
1040	>	mon_add_command("ver", version, "ver Show version\n");
1041	>	mon_add_command("?", print_expr, "? expression Calculate expression\n");
1042	>	mon_add_command("@", reallocate, "@ [size] Reallocate buffer\n");
1043	>	mon_add_command("i", ascii_dump, "i [start [end]] ASCII memory dump\n");
1044	>	mon_add_command("m", memory_dump, "m [start [end]] Hex/ASCII memory dump\n");
1045	>	mon_add_command("b", binary_dump, "b [start [end]] Binary memory dump\n");
1046	>	mon_add_command("d", disassemble_ppc, "d [start [end]] Disassemble PowerPC code\n");
1047	>	mon_add_command("d65", disassemble_6502, "d65 [start [end]] Disassemble 6502 code\n");
1048	>	mon_add_command("d68", disassemble_680x0, "d68 [start [end]] Disassemble 680x0 code\n");
1049	>	mon_add_command("d80", disassemble_z80, "d80 [start [end]] Disassemble Z80 code\n");
1050	>	mon_add_command("d86", disassemble_80x86_32, "d86 [start [end]] Disassemble 80x86 (32-bit) code\n");
1051	>	mon_add_command("d8086", disassemble_80x86_16, "d8086 [start [end]] Disassemble 80x86 (16-bit) code\n");
1052	>	mon_add_command("d8664", disassemble_x86_64, "d8664 [start [end]] Disassemble x86-64 code\n");
1053	>	mon_add_command(":", modify, ": start string Modify memory\n");
1054	>	mon_add_command("f", fill, "f start end string Fill memory\n");
1055	>	mon_add_command("y", apply_byte, "y[b\|h\|w] start end expr Apply expression to memory\n");
1056		mon_add_command("yb", apply_byte, NULL);
1057		mon_add_command("yh", apply_half, NULL);
1058		mon_add_command("yw", apply_word, NULL);
1059	<	mon_add_command("t", transfer, "t start end dest Transfer memory\n");
1060	<	mon_add_command("c", compare, "c start end dest Compare memory\n");
1061	<	mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n");
1062	<	mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n");
1063	<	mon_add_command("ls", mon_exec, "ls [args] List directory contents\n");
1064	<	mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n");
1065	<	mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n");
1066	<	mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n");
1067	<	mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n");
1068	<	mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n");
1069	<	mon_add_command("[", load_data, "[ start \"file\" Load data from file\n");
1070	<	mon_add_command("]", save_data, "] start size \"file\" Save data to file\n");
1071	<	mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n");
1072	<	mon_add_command("cv", clear_vars, "cv Clear all variables\n");
1059	>	mon_add_command("t", transfer, "t start end dest Transfer memory\n");
1060	>	mon_add_command("c", compare, "c start end dest Compare memory\n");
1061	>	mon_add_command("h", help_or_hunt, "h start end string Search for byte string\n");
1062	>	mon_add_command("\\", shell_command, "\\ \"command\" Execute shell command\n");
1063	>	mon_add_command("ls", mon_exec, "ls [args] List directory contents\n");
1064	>	mon_add_command("rm", mon_exec, "rm [args] Remove file(s)\n");
1065	>	mon_add_command("cp", mon_exec, "cp [args] Copy file(s)\n");
1066	>	mon_add_command("mv", mon_exec, "mv [args] Move file(s)\n");
1067	>	mon_add_command("cd", mon_change_dir, "cd directory Change current directory\n");
1068	>	mon_add_command("o", redir_output, "o [\"file\"] Redirect output\n");
1069	>	mon_add_command("[", load_data, "[ start \"file\" Load data from file\n");
1070	>	mon_add_command("]", save_data, "] start size \"file\" Save data to file\n");
1071	>	mon_add_command("set", set_var, "set [var[=value]] Set/clear/show variables\n");
1072	>	mon_add_command("cv", clear_vars, "cv Clear all variables\n");
1073	>
1074	>	mon_read_byte = NULL;
1075	>	mon_write_byte = NULL;
1076	>
1077	>	input = NULL;
1078	>	mon_string = NULL;
1079	>	mon_name = NULL;
1080		}
1081
1082
#	Line 1070 \| Line 1084 \| void mon_init(void)
1084		* Deinitialize mon
1085		*/
1086
1087	<	void mon_exit(void)
1087	>	void mon_exit()
1088		{
1089	<	free(cmds);
1090	<	cmds = NULL;
1089	>	if (cmds) {
1090	>	free(cmds);
1091	>	cmds = NULL;
1092	>	}
1093		num_cmds = 0;
1094		cmd_help = NULL;
1095	+
1096	+	if (input) {
1097	+	free(input);
1098	+	input = NULL;
1099	+	}
1100	+	if (mon_string) {
1101	+	free(mon_string);
1102	+	mon_string = NULL;
1103	+	}
1104	+	if (mon_name) {
1105	+	free(mon_name);
1106	+	mon_name = NULL;
1107	+	}
1108		}
1109
1110
#	Line 1086 \| Line 1115 \| void mon_exit(void)
1115		void mon(int argc, char **argv)
1116		{
1117		bool done = false, interactive = true;
1089	–	char c, cmd[INPUT_LENGTH];
1118
1119		// Setup input/output streams
1120		monin = stdin;
1121		monout = stdout;
1122		monerr = stdout;
1123
1124	<	if (argc) {
1125	<	// Access real memory if mon was started as "rmon"
1126	<	char *prgname = argv[0];
1127	<	char *lastslash;
1128	<	if ((lastslash = strrchr(prgname, '/')) != NULL)
1129	<	prgname = lastslash + 1;
1130	<	if (strcmp(prgname, "rmon") == 0)
1124	>	// Make argc/argv point to the actual arguments
1125	>	const char *prg_name = argv[0];
1126	>	if (argc)
1127	>	argc--; argv++;
1128	>
1129	>	// Parse arguments
1130	>	mon_macos_mode = false;
1131	>	mon_use_real_mem = false;
1132	>	while (argc > 0) {
1133	>	if (strcmp(argv[0], "-h") == 0 \|\| strcmp(argv[0], "--help") == 0) {
1134	>	printf("Usage: %s [-m] [-r] [command...]\n", prg_name);
1135	>	exit(0);
1136	>	} else if (strcmp(argv[0], "-m") == 0)
1137	>	mon_macos_mode = true;
1138	>	else if (strcmp(argv[0], "-r") == 0)
1139		mon_use_real_mem = true;
1140	+	else
1141	+	break;
1142	+	argc--; argv++;
1143	+	}
1144	+	interactive = (argc == 0);
1145
1146	<	// Make argc/argv point to the actual arguments
1147	<	argc--;
1148	<	argv++;
1149	<	interactive = (argc == 0);
1146	>	// Set up memory access functions if not supplied by the user
1147	>	if (mon_read_byte == NULL) {
1148	>	if (mon_use_real_mem)
1149	>	mon_read_byte = mon_read_byte_real;
1150	>	else
1151	>	mon_read_byte = mon_read_byte_buffer;
1152	>	}
1153	>	if (mon_write_byte == NULL) {
1154	>	if (mon_use_real_mem)
1155	>	mon_write_byte = mon_write_byte_real;
1156	>	else
1157	>	mon_write_byte = mon_write_byte_buffer;
1158		}
1159
1160		// Allocate buffer
#	Line 1115 \| Line 1164 \| void mon(int argc, char argv)**
1164
1165		// Print banner
1166		if (interactive)
1167	<	fprintf(monerr, "\n * mon V%d.%d by Christian Bauer *\n"
1168	<	" * Press 'h' for help *\n\n", MON_VERSION, MON_REVISION);
1167	>	fprintf(monerr, "\n * cxmon V" VERSION " by Christian Bauer and Marc Hellwig *\n"
1168	>	" * Press 'h' for help *\n\n");
1169	>	}
1170	>
1171	>	// Clear variables
1172	>	vars.clear();
1173	>
1174	>	// In MacOS mode, pull in the lowmem globals as variables
1175	>	if (mon_macos_mode) {
1176	>	const lowmem_info *l = lowmem;
1177	>	while (l->name) {
1178	>	vars[l->name] = l->addr;
1179	>	l++;
1180	>	}
1181		}
1182
1183		init_abort();
1184
1185		// Read and parse command line
1186	+	char *cmd = NULL;
1187		while (!done) {
1188		if (interactive) {
1189		char prompt[16];
1190	<	sprintf(prompt, "[%08lx]-> ", mon_dot_address);
1190	>	sprintf(prompt, "[%0lx]-> ", int(2 sizeof(mon_dot_address)), mon_dot_address);
1191		read_line(prompt);
1192	+	if (!input) {
1193	+	done = true;
1194	+	continue;
1195	+	}
1196		} else {
1197		if (argc == 0) {
1198		done = true;
1199		break;
1200		} else {
1201	<	strncpy(in_ptr = input, argv[0], INPUT_LENGTH);
1201	>	unsigned n = strlen(argv[0]) + 1;
1202	>	input = (char *)realloc(input, n);
1203	>	strcpy(in_ptr = input, argv[0]);
1204		argc--;
1205		argv++;
1206		}
1207		}
1208
1209		// Skip leading spaces
1210	<	while ((c = get_char()) == ' ') ;
1210	>	char c = get_char();
1211	>	while (isspace(c))
1212	>	c = get_char();
1213	>	put_back(c);
1214	>	if (!c)
1215	>	continue; // blank line
1216
1217		// Read command word
1218	<	char *p = cmd;
1219	<	do {
1147	<	*p++ = c;
1218	>	char *p = in_ptr;
1219	>	while (isgraph(c))
1220		c = get_char();
1149	–	} while (isgraph(c));
1150	–	*p = 0;
1221		put_back(c);
1222	+	unsigned n = in_ptr - p;
1223	+	cmd = (char *)realloc(cmd, n + 1);
1224	+	memcpy(cmd, p, n);
1225	+	cmd[n] = 0;
1226
1227		// Execute command
1154	–	if (cmd[0] == 0) // Blank line
1155	–	continue;
1228		if (strcmp(cmd, "x") == 0) { // Exit
1229		done = true;
1230		continue;
#	Line 1168 \| Line 1240 \| void mon(int argc, char argv)**
1240		cmd_done: ;
1241		}
1242
1243	+	if (cmd)
1244	+	free(cmd);
1245	+
1246		exit_abort();
1247
1248		// Free buffer

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Comparing mon/src/mon.cpp (file contents): Revision 1.1.1.1 by cebix, 1999-10-04T19:31:09Z vs. Revision 1.26 by cebix, 2007-01-21T17:32:05Z

Diff Legend

Comparing mon/src/mon.cpp (file contents):
Revision 1.1.1.1 by cebix, 1999-10-04T19:31:09Z vs.
Revision 1.26 by cebix, 2007-01-21T17:32:05Z