Initial revision

1 files changed, 198 insertions, 0 deletions

diff --git a/gdb/dink32-rom.c b/gdb/dink32-rom.c
new file mode 100644
index 00000000000..c0c2e510202
--- /dev/null
+++ b/gdb/dink32-rom.c
@@ -0,0 +1,198 @@
+/* Remote debugging interface for DINK32 (PowerPC) ROM monitor for
+   GDB, the GNU debugger.
+   Copyright 1997 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+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 "defs.h"
+#include "gdbcore.h"
+#include "target.h"
+#include "monitor.h"
+#include "serial.h"
+
+static void dink32_open PARAMS ((char *args, int from_tty));
+
+static void
+dink32_supply_register (regname, regnamelen, val, vallen)
+     char *regname;
+     int regnamelen;
+     char *val;
+     int vallen;
+{
+  int regno = 0, base = 0;
+
+  if (regnamelen < 2 || regnamelen > 4)
+    return;
+
+  switch (regname[0])
+    {
+    case 'R':
+      if (regname[1] < '0' || regname[1] > '9')
+	return;
+      if (regnamelen == 2)
+	regno = regname[1] - '0';
+      else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
+	regno = (regname[1] - '0') * 10 + (regname[2] - '0');
+      else
+	return;
+      break;
+    case 'F':
+      if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9')
+	return;
+      if (regnamelen == 3)
+	regno = 32 + regname[2] - '0';
+      else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
+	regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
+      else
+	return;
+      break;
+    case 'I':
+      if (regnamelen != 2 || regname[1] != 'P')
+	return;
+      regno = 64;
+      break;
+    case 'M':
+      if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R')
+	return;
+      regno = 65;
+      break;
+    case 'C':
+      if (regnamelen != 2 || regname[1] != 'R')
+	return;
+      regno = 66;
+      break;
+    case 'S':
+      if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R')
+	return;
+      else if (regname[3] == '8')
+	regno = 67;
+      else if (regname[3] == '9')
+	regno = 68;
+      else if (regname[3] == '1')
+	regno = 69;
+      else if (regname[3] == '0')
+	regno = 70;
+      else
+	return;
+      break;
+    default:
+      return;
+    }
+
+  monitor_supply_register (regno, val);
+}
+
+static void
+dink32_load (monops, filename, from_tty)
+     struct monitor_ops *monops;
+     char *filename;
+     int from_tty;
+{
+  extern int inferior_pid;
+
+  generic_load (filename, from_tty);
+
+  /* Finally, make the PC point at the start address */
+  if (exec_bfd)
+    write_pc (bfd_get_start_address (exec_bfd));
+
+  inferior_pid = 0;             /* No process now */
+}
+
+
+/* This array of registers needs to match the indexes used by GDB. The
+   whole reason this exists is because the various ROM monitors use
+   different names than GDB does, and don't support all the registers
+   either.  */
+
+static char *dink32_regnames[NUM_REGS] =
+{
+  "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",
+
+  "f0",   "f1",   "f2",   "f3",   "f4",   "f5",   "f6",   "f7",
+  "f8",   "f9",   "f10",  "f11",  "f12",  "f13",  "f14",  "f15",
+  "f16",  "f17",  "f18",  "f19",  "f20",  "f21",  "f22",  "f23",
+  "f24",  "f25",  "f26",  "f27",  "f28",  "f29",  "f30",  "f31",
+
+  "srr0", "msr",  "cr",   "lr",   "ctr",  "xer",  "xer"
+};
+
+static struct target_ops dink32_ops;
+
+static char *dink32_inits[] = {"\r", NULL};
+
+static struct monitor_ops dink32_cmds;
+
+static void
+dink32_open (args, from_tty)
+     char *args;
+     int from_tty;
+{
+  monitor_open (args, &dink32_cmds, from_tty);
+}
+
+void
+_initialize_dink32_rom ()
+{
+  dink32_cmds.flags = MO_HEX_PREFIX | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR | MO_HANDLE_NL | MO_32_REGS_PAIRED | MO_SETREG_INTERACTIVE | MO_SETMEM_INTERACTIVE | MO_GETMEM_16_BOUNDARY | MO_CLR_BREAK_1_BASED | MO_SREC_ACK | MO_SREC_ACK_ROTATE;
+  dink32_cmds.init = dink32_inits;
+  dink32_cmds.cont = "go +\r";
+  dink32_cmds.step = "tr +\r";
+  dink32_cmds.set_break = "bp 0x%x\r";
+  dink32_cmds.clr_break = "bp %d\r";
+#if 0 /* Would need to follow strict alignment rules.. */
+  dink32_cmds.fill = "mf %x %x %x\r";
+#endif
+  dink32_cmds.setmem.cmdb = "mm -b %x\r";
+  dink32_cmds.setmem.cmdw = "mm -w %x\r";
+  dink32_cmds.setmem.cmdl = "mm %x\r";
+  dink32_cmds.setmem.term = " ?  ";
+  dink32_cmds.getmem.cmdb = "md %x\r";
+  dink32_cmds.getmem.resp_delim = "        ";
+  dink32_cmds.setreg.cmd = "rm %s\r";
+  dink32_cmds.setreg.term = " ?  ";
+  dink32_cmds.getreg.cmd = "rd %s\r";
+  dink32_cmds.getreg.resp_delim = ": ";
+  dink32_cmds.dump_registers = "rd r\r";
+  dink32_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
+  dink32_cmds.supply_register = dink32_supply_register;
+  /* S-record download, via "keyboard port".  */
+  dink32_cmds.load = "dl -k\r";
+  dink32_cmds.loadresp = "Set Input Port : set to Keyboard Port\r";
+#if 0 /* slow load routine not needed if S-records work... */
+  dink32_cmds.load_routine = dink32_load;
+#endif
+  dink32_cmds.prompt = "DINK32_603 >>";
+  dink32_cmds.line_term = "\r";
+  dink32_cmds.target = &dink32_ops;
+  dink32_cmds.stopbits = SERIAL_1_STOPBITS;
+  dink32_cmds.regnames = dink32_regnames;
+  dink32_cmds.magic = MONITOR_OPS_MAGIC;
+
+  init_monitor_ops (&dink32_ops);
+
+  dink32_ops.to_shortname = "dink32";
+  dink32_ops.to_longname = "DINK32 monitor";
+  dink32_ops.to_doc = "Debug using the DINK32 monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+  dink32_ops.to_open = dink32_open;
+
+  add_target (&dink32_ops);
+}