darling-gdb/gdb/w89k-rom.c

#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"

extern int baud_rate;

void w89k_open();
void monitor_open();

/*
 * this array of registers need to match the indexes used by GDB. The
 * whole reason this exists is cause the various ROM monitors use
 * different strings than GDB does, and doesn't support all the
 * registers either. So, typing "info reg sp" becomes a "r30".
 */
static char *w89k_regnames[] = {
  "r0",   "r1",    "r2",   "r3",   "r4",  "r5",  "r6",  "r7",  "r8",  "r9",
  "r10",  "r11",   "r12",  "r13",  "r14", "r15", "r16", "r17", "r18", "r19",
  "r20",  "r21",   "r22",  "r23",  "r24", "r25", "r26", "r27", "r28", "r29",
  "r30",  "r31",   "sar",  "pc",   "",    "",    "",
  "eiem", "iir",   "iva",  "ior",  "ipsw","",    "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "ccr", "",    "",
  "tr0",  "tr1",   "",     "",     "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    "",
  "",     "",      "",     "",     "",    "",    "",    ""
};

/*
 * Define the monitor command strings. Since these are passed directly
 * through to a printf style function, we need can include formatting
 * strings. We also need a CR or LF on the end.
 */

struct target_ops w89k_ops = {
  "w89k",
  "WinBond's debug monitor for the W89k Eval board",
  "Debug on a WinBond W89K eval board.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).",
  w89k_open,
  monitor_close, 
  monitor_attach,
  monitor_detach,
  monitor_resume,
  monitor_wait,
  monitor_fetch_register,
  monitor_store_register,
  monitor_prepare_to_store,
  monitor_xfer_inferior_memory,
  monitor_files_info,
  monitor_insert_breakpoint,
  monitor_remove_breakpoint,	/* Breakpoints */
  0,
  0,
  0,
  0,
  0,				/* Terminal handling */
  monitor_kill,
  monitor_load,			/* load */
  0,				/* lookup_symbol */
  monitor_create_inferior,
  monitor_mourn_inferior,
  0,				/* can_run */
  0, 				/* notice_signals */
  0,				/* to_stop */
  process_stratum,
  0,				/* next */
  1,
  1,
  1,
  1,
  1,				/* all mem, mem, stack, regs, exec */
  0,
  0,				/* Section pointers */
  OPS_MAGIC,			/* Always the last thing */
};

struct monitor_ops w89k_cmds = {
  1,					/* 1 for ASCII, 0 for binary */
  "\n",					/* monitor init string */
  "g = %x\n",				/* execute or usually GO command */
  "g\n",				/* continue command */
  "t\n",				/* single step */
  "bp %x\n",				/* set a breakpoint */
  "bc %x\n",				/* clear a breakpoint */
  0,					/* 0 for number, 1 for address */
  {
    "e %x %x\n",			/* set memory */
    "",				        /* delimiter */
    "",					/* the result */
  },
  {
    "db %x %x\n",			/* get memory */
    "",				        /* delimiter */
    "",					/* the result */
  },
  {
    "r %s %x\n",			/* set a register */
    "",				        /* delimiter between registers */
    "",					/* the result */
  },
  {
    "r %s\n",				/* get a register */
    "",				        /* delimiter between registers */
    "",					/* the result */
  },
  "U\r",				/* download command */
  "ROM>",				/* monitor command prompt */
  "",					/* end-of-command delimitor */
  "",					/* optional command terminator */
  &w89k_ops,				/* target operations */
  "srec,xmodem-ascii,xmodem-srec,default",/* load types */
  w89k_regnames				/* registers names */
};

void
w89k_open(args, from_tty)
     char *args;
     int from_tty;
{
  target_preopen(from_tty);
  push_target  (&w89k_ops);
  push_monitor (&w89k_cmds);
  monitor_open (args, "w89k", from_tty);
}

void
_initialize_w89k ()
{
  add_target (&w89k_ops);

  /* this is the default, since it's the only baud rate supported by the hardware */
  baud_rate = 9600;
}