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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 "ccdbg.h"
#define MOV_direct_data 0x75
#define LJMP 0x02
#define MOV_Rn_data(n) (0x78 | (n))
#define DJNZ_Rn_rel(n) (0xd8 | (n))
#if 0
static uint8_t instructions[] = {
3, MOV_direct_data, 0xfe, 0x02,
3, MOV_direct_data, 0x90, 0xff,
0
};
#endif
static uint8_t mem_instr[] = {
MOV_direct_data, 0xfe, 0x02,
MOV_direct_data, 0x90, 0xff,
MOV_Rn_data(2), 0x10,
MOV_Rn_data(0), 0xff,
MOV_Rn_data(1), 0xff,
DJNZ_Rn_rel(1), 0xfe,
DJNZ_Rn_rel(0), 0xfa,
DJNZ_Rn_rel(2), 0xf6,
MOV_direct_data, 0x90, 0xfd,
MOV_Rn_data(2), 0x10,
MOV_Rn_data(0), 0xff,
MOV_Rn_data(1), 0xff,
DJNZ_Rn_rel(1), 0xfe,
DJNZ_Rn_rel(0), 0xfa,
DJNZ_Rn_rel(2), 0xf6,
LJMP, 0xf0, 0x03
};
static uint8_t jump_mem[] = {
3, LJMP, 0xf0, 0x00,
0
};
int
main (int argc, char **argv)
{
struct ccdbg *dbg;
uint8_t status;
uint16_t chip_id;
uint16_t pc;
uint8_t memory[0x10];
int i;
struct hex_file *hex;
dbg = ccdbg_open("/dev/ttyUSB0");
if (!dbg)
exit (1);
#if 0
ccdbg_manual(dbg, stdin);
#endif
hex = ccdbg_hex_file_read(stdin, "<stdin>");
if (!hex)
exit (1);
ccdbg_reset(dbg);
ccdbg_debug_mode(dbg);
status = ccdbg_read_status(dbg);
printf("Status: 0x%02x\n", status);
chip_id = ccdbg_get_chip_id(dbg);
printf("Chip id: 0x%04x\n", chip_id);
status = ccdbg_halt(dbg);
printf ("halt status: 0x%02x\n", status);
ccdbg_write_hex(dbg, hex);
ccdbg_hex_file_free(hex);
for (i = 0; i < sizeof (memory); i++)
printf (" %02x", memory[i]);
printf ("\n");
ccdbg_execute(dbg, jump_mem);
pc = ccdbg_get_pc(dbg);
printf ("pc starts at 0x%04x\n", pc);
status = ccdbg_resume(dbg);
printf ("resume status: 0x%02x\n", status);
#if 0
/* ccdbg_execute(dbg, instructions); */
ccdbg_write_memory(dbg, 0xf000, mem_instr, sizeof (mem_instr));
ccdbg_read_memory(dbg, 0xf000, memory, sizeof (memory));
#endif
ccdbg_close(dbg);
exit (0);
}
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