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/*
* mon_util.c - Utilities for the VICE built-in monitor.
*
* Written by
* Spiro Trikaliotis <spiro.trikaliotis@gmx.de>
*
* This file is part of VICE, the Versatile Commodore Emulator.
* See README for copyright notice.
*
* 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 "vice.h"
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "archdep.h"
#include "console.h"
#include "lib.h"
#include "mem.h"
#include "mon_disassemble.h"
#include "mon_util.h"
#include "monitor.h"
#include "monitor_network.h"
#include "types.h"
#include "uimon.h"
static char * bigbuffer = NULL;
static const unsigned int bigbuffersize = 10000;
static unsigned int bigbufferwrite = 0;
static void mon_buffer_alloc(void)
{
if (!bigbuffer) {
bigbuffer = lib_malloc(bigbuffersize + 1);
bigbuffer[bigbuffersize] = 0;
}
}
static int mon_buffer_flush(void)
{
int rv = 0;
if (bigbuffer && bigbufferwrite) {
bigbufferwrite = 0;
rv = uimon_out(bigbuffer);
}
return rv;
}
/* like strncpy, but:
* 1. always add a null character
* 2. do not fill the rest of the buffer
*/
static void stringcopy_n(char *dest, const char *src, unsigned int len)
{
while (*src && len--)
*dest++ = *src++;
*dest = 0;
}
static void mon_buffer_add(const char *buffer, unsigned int bufferlen)
{
if (bigbufferwrite + bufferlen > bigbuffersize) {
/* the buffer does not fit into bigbuffer, thus,
flush the buffer! */
mon_buffer_flush();
}
if (bigbufferwrite + bufferlen <= bigbuffersize) {
stringcopy_n(&bigbuffer[bigbufferwrite], buffer, bufferlen);
bigbufferwrite += bufferlen;
assert(bigbufferwrite <= bigbuffersize);
}
}
static int mon_out_buffered(const char *buffer)
{
int rv = 0;
if (!console_log || console_log->console_cannot_output) {
mon_buffer_alloc();
mon_buffer_add(buffer, (unsigned int)strlen(buffer));
} else {
rv = mon_buffer_flush();
rv = uimon_out(buffer) || rv;
}
return rv;
}
int mon_out(const char *format, ...)
{
va_list ap;
char *buffer;
int rc = 0;
va_start(ap, format);
buffer = lib_mvsprintf(format, ap);
va_end(ap);
#ifdef HAVE_NETWORK
if (monitor_is_remote()) {
rc = monitor_network_transmit(buffer, strlen(buffer));
}
else {
#endif
rc = mon_out_buffered(buffer);
#ifdef HAVE_NETWORK
}
#endif
lib_free(buffer);
if (rc < 0)
monitor_abort();
return rc;
}
char *mon_disassemble_with_label(MEMSPACE memspace, WORD loc, int hex,
unsigned *opc_size_p, unsigned *label_p)
{
const char *p;
if (*label_p == 0) {
/* process a label, if available */
p = mon_symbol_table_lookup_name(memspace, loc);
if (p) {
*label_p = 1;
*opc_size_p = 0;
return lib_msprintf("%s:",p);
}
} else {
*label_p = 0;
}
/* process the disassembly itself */
p = mon_disassemble_to_string_ex(memspace, loc,
mon_get_mem_val(memspace, loc),
mon_get_mem_val(memspace,
(WORD)(loc + 1)),
mon_get_mem_val(memspace,
(WORD)(loc + 2)),
mon_get_mem_val(memspace,
(WORD)(loc + 3)),
hex,
opc_size_p);
return lib_msprintf((hex ? "%04X: %s%10s" : "05u: %s%10s"), loc, p, "");
}
char *mon_dump_with_label(MEMSPACE memspace, WORD loc, int hex, unsigned *label_p)
{
const char *p;
BYTE val;
if (*label_p == 0) {
/* process a label, if available */
p = mon_symbol_table_lookup_name(memspace, loc);
if (p) {
*label_p = 1;
return lib_msprintf("%s:",p);
}
} else {
*label_p = 0;
}
val = mon_get_mem_val(memspace, loc);
return lib_msprintf((hex ? "%04X: $%02X %03u '%c'" : "%05u: $%02X %03u '%c'"), loc, val, val, isprint(val)?val:' ');
}
#ifndef __OS2__
static char *pchCommandLine = NULL;
void mon_set_command(console_t *console_log, char *command,
void (*pAfter)(void))
{
pchCommandLine = command;
uimon_out(command);
uimon_out("\n");
if (pAfter)
(*pAfter)();
}
char *uimon_in(const char *prompt)
{
char *p = NULL;
while (!p && !pchCommandLine) {
/* as long as we don't have any return value... */
#ifdef HAVE_NETWORK
if (monitor_is_remote()) {
monitor_network_transmit(prompt, strlen(prompt));
p = monitor_network_get_command_line();
if (p == NULL) {
mon_set_command(NULL, "x", NULL);
}
}
else {
#endif
/* make sure to flush the output buffer */
mon_buffer_flush();
/* get input from the user */
p = uimon_get_in(&pchCommandLine, prompt);
#ifdef HAVE_NETWORK
}
#endif
}
if (pchCommandLine) {
/* we have an "artificially" generated command line */
lib_free(p);
p = lib_stralloc(pchCommandLine);
pchCommandLine = NULL;
}
/* return the command (the one or other way...) */
return p;
}
#endif
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