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/*
* Copyright © 2008 Keith Packard <keithp@keithp.com>
*
* 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 "s51.h"
static enum command_result
parse_int(char *value, int *result)
{
char *endptr;
*result = strtol(value, &endptr, 0);
if (endptr == value)
return command_syntax;
return command_proceed;
}
static enum command_result
parse_uint16(char *value, uint16_t *uint16)
{
int v;
enum command_result result;
result = parse_int(value, &v);
if (result != command_proceed)
return command_error;
if (v < 0 || v > 0xffff)
return command_error;
*uint16 = v;
return command_proceed;
}
enum command_result
command_quit (FILE *output, int argc, char **argv)
{
exit(0);
return command_error;
}
enum command_result
command_di (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_ds (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_dx (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_set (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_dump (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_pc (FILE *output, int argc, char **argv)
{
uint16_t pc;
if (argv[1]) {
enum command_result result;
result = parse_uint16(argv[1], &pc);
if (result != command_proceed)
return result;
ccdbg_set_pc(s51_dbg, pc);
} else {
pc = ccdbg_get_pc(s51_dbg);
printf (" 0x%04x\n", pc);
}
return command_proceed;
}
enum command_result
command_break (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_clear (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_run (FILE *output, int argc, char **argv)
{
uint16_t start, end;
enum command_result result;
if (argv[1]) {
result = parse_uint16(argv[1], &start);
if (result != command_proceed)
return result;
if (argv[2]) {
result = parse_uint16(argv[2], &end);
if (result != command_proceed)
return result;
}
ccdbg_set_pc(s51_dbg, start);
}
else
start = ccdbg_get_pc(s51_dbg);
fprintf(output, "Resume at 0x%04x\n", start);
ccdbg_resume(s51_dbg);
return command_proceed;
}
enum command_result
command_next (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_step (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_load (FILE *output, int argc, char **argv)
{
return command_error;
}
enum command_result
command_halt (FILE *output, int argc, char **argv)
{
uint16_t pc;
ccdbg_halt(s51_dbg);
pc = ccdbg_get_pc(s51_dbg);
fprintf(output, "Halted at 0x%04x\n", pc);
return command_proceed;
}
enum command_result
command_reset (FILE *output, int argc, char **argv)
{
ccdbg_debug_mode(s51_dbg);
return command_proceed;
}
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