#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"
#include "serial.h"
#include "regcache.h"
#include "value.h"
#include "m68k-tdep.h"
static void rom68k_open (char *args, int from_tty);
static int
is_hex_digit (int c)
{
return (('0' <= c && c <= '9')
|| ('a' <= c && c <= 'f')
|| ('A' <= c && c <= 'F'));
}
static int
hex_digit_value (int a)
{
if (a >= '0' && a <= '9')
return a - '0';
else if (a >= 'a' && a <= 'f')
return a - 'a' + 10;
else if (a >= 'A' && a <= 'F')
return a - 'A' + 10;
else
error (_("Invalid hex digit %d"), a);
}
static int
is_whitespace (int c)
{
return (c == ' '
|| c == '\r'
|| c == '\n'
|| c == '\t'
|| c == '\f');
}
static char *
rom68k_supply_one_register (int regno, unsigned char *hex)
{
ULONGEST value;
unsigned char regbuf[MAX_REGISTER_SIZE];
value = 0;
while (*hex != '\0')
if (is_hex_digit (*hex))
value = (value * 16) + hex_digit_value (*hex++);
else
break;
while (is_whitespace (*hex))
hex++;
store_unsigned_integer (regbuf, register_size (current_gdbarch, regno), value);
regcache_raw_supply (current_regcache, regno, regbuf);
return hex;
}
static void
rom68k_supply_register (char *regname, int regnamelen, char *val, int vallen)
{
int numregs;
int regno;
numregs = 1;
regno = -1;
if (regnamelen == 2)
switch (regname[0])
{
case 'S':
if (regname[1] == 'R')
regno = PS_REGNUM;
break;
case 'P':
if (regname[1] == 'C')
regno = PC_REGNUM;
break;
case 'D':
if (regname[1] != 'R')
break;
regno = M68K_D0_REGNUM;
numregs = 8;
break;
case 'A':
if (regname[1] != 'R')
break;
regno = M68K_A0_REGNUM;
numregs = 7;
break;
}
else if (regnamelen == 3)
switch (regname[0])
{
case 'I':
if (regname[1] == 'S' && regname[2] == 'P')
regno = SP_REGNUM;
}
if (regno >= 0)
while (numregs-- > 0)
val = rom68k_supply_one_register (regno++, val);
}
static const char *
rom68k_regname (int index)
{
static char *regnames[] =
{
"D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
"A0", "A1", "A2", "A3", "A4", "A5", "A6", "ISP",
"SR", "PC"
};
if ((index >= (sizeof (regnames) / sizeof(regnames[0])))
|| (index < 0) || (index >= NUM_REGS))
return NULL;
else
return regnames[index];
}
static struct target_ops rom68k_ops;
static char *rom68k_inits[] =
{".\r\r", NULL};
static struct monitor_ops rom68k_cmds;
static void
init_rom68k_cmds (void)
{
rom68k_cmds.flags = MO_PRINT_PROGRAM_OUTPUT;
rom68k_cmds.init = rom68k_inits;
rom68k_cmds.cont = "go\r";
rom68k_cmds.step = "st\r";
rom68k_cmds.stop = NULL;
rom68k_cmds.set_break = "db %x\r";
rom68k_cmds.clr_break = "cb %x\r";
rom68k_cmds.clr_all_break = "cb *\r";
rom68k_cmds.fill = "fm %x %x %x\r";
rom68k_cmds.setmem.cmdb = "pm %x %x\r";
rom68k_cmds.setmem.cmdw = "pm.w %x %x\r";
rom68k_cmds.setmem.cmdl = "pm.l %x %x\r";
rom68k_cmds.setmem.cmdll = NULL;
rom68k_cmds.setmem.resp_delim = NULL;
rom68k_cmds.setmem.term = NULL;
rom68k_cmds.setmem.term_cmd = NULL;
rom68k_cmds.getmem.cmdb = "dm %x %x\r";
rom68k_cmds.getmem.cmdw = "dm.w %x %x\r";
rom68k_cmds.getmem.cmdl = "dm.l %x %x\r";
rom68k_cmds.getmem.cmdll = NULL;
rom68k_cmds.getmem.resp_delim = " ";
rom68k_cmds.getmem.term = NULL;
rom68k_cmds.getmem.term_cmd = NULL;
rom68k_cmds.setreg.cmd = "pr %s %x\r";
rom68k_cmds.setreg.resp_delim = NULL;
rom68k_cmds.setreg.term = NULL;
rom68k_cmds.setreg.term_cmd = NULL;
rom68k_cmds.getreg.cmd = "pr %s\r";
rom68k_cmds.getreg.resp_delim = ": ";
rom68k_cmds.getreg.term = "= ";
rom68k_cmds.getreg.term_cmd = ".\r";
rom68k_cmds.dump_registers = "dr\r";
rom68k_cmds.register_pattern =
"\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)";
rom68k_cmds.supply_register = rom68k_supply_register;
rom68k_cmds.load_routine = NULL;
rom68k_cmds.load = "dc\r";
rom68k_cmds.loadresp = "Waiting for S-records from host... ";
rom68k_cmds.prompt = "ROM68K :-> ";
rom68k_cmds.line_term = "\r";
rom68k_cmds.cmd_end = ".\r";
rom68k_cmds.target = &rom68k_ops;
rom68k_cmds.stopbits = SERIAL_1_STOPBITS;
rom68k_cmds.regnames = NULL;
rom68k_cmds.regname = rom68k_regname;
rom68k_cmds.magic = MONITOR_OPS_MAGIC;
}
static void
rom68k_open (char *args, int from_tty)
{
monitor_open (args, &rom68k_cmds, from_tty);
}
extern initialize_file_ftype _initialize_rom68k;
void
_initialize_rom68k (void)
{
init_rom68k_cmds ();
init_monitor_ops (&rom68k_ops);
rom68k_ops.to_shortname = "rom68k";
rom68k_ops.to_longname = "Rom68k debug monitor for the IDP Eval board";
rom68k_ops.to_doc = "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
rom68k_ops.to_open = rom68k_open;
add_target (&rom68k_ops);
}