* Makefile.in: Add Timer A support.

* cpu.h (m32c_opcode_pc): New.
(in_gdb): New.
* gdb-if.c (sim_open): Add Timer A support.  Support unbuffered
console.
* int.c (trigger_interrupt): Manage the U flag properly.
(trigger_based_interrupt): Likewise.
(trigger_fixed_interrupt): New.
(trigger_peripheral_interrupt): New.
* int.h (trigger_peripheral_interrupt): New.
* m32c.opc: Use m32c_opcode_pc throughout, as needed.
(decode_m32c): Detect jump-to-zero with traceback.
(BRK): Try to do the right thing, keeping track of whether we're
in gdb or not, and if the user has provided a handler or not.
(GBRK): Alternate break opcode for gdb, in case the user's app
needs to use BRK for itself.
(BRK2): Implement.
* main.c: Add Timer A support.  Support TCP-based console.
(setup_tcp_console): New.
(main): Add Timer A support.  Support TCP-based console.
* mem.c: Add Timer A support.  Support TCP-based console.
(mem_ptr): Enhance NULL pointer detection.
(stdin_ready): New.
(m32c_sim_restore_console): New.
(mem_get_byte): Check for console input ready.
(update_timer_a): New.
* r8c.opc (SSTR): Use r0l, not r0h.
(REIT): Fix return frame logic.
* reg.c (print_flags): New.
(trace_register_changes): Use it.
(m32c_dump_all_registers): New.
* timer_a.h: New.

* load.c: Fix indentation.
* trace.c: Fix indentation.
* trace.h: Fix indentation.

1 files changed, 58 insertions, 1 deletions

diff --git a/sim/m32c/reg.c b/sim/m32c/reg.c
index 912c32e..f553161 100644
--- a/sim/m32c/reg.c
+++ b/sim/m32c/reg.c
@@ -28,6 +28,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 int verbose = 0;
 int trace = 0;
 int enable_counting = 0;
+int in_gdb = 1;
 
 regs_type regs;
 int addr_mask = 0xffff;
@@ -75,6 +76,8 @@ int b2minsigned[] = { 0, -128, -32768, -8388608, -2147483647 - 1 };
 
 static regs_type oldregs;
 
+int m32c_opcode_pc;
+
 void
 init_regs (void)
 {
@@ -581,6 +584,17 @@ put_reg_ll (reg_id id, DI v)
     }
 }
 
+static void
+print_flags (int f)
+{
+  int i;
+  static char fn[] = "CDZSBOIU";
+  printf ("%d.", (f >> 12) & 7);
+  for (i = 7; i >= 0; i--)
+    if (f & (1 << i))
+      putchar (fn[i]);
+}
+
 #define TRC(f,n, id) \
   if (oldregs.f != regs.f) \
     { \
@@ -617,6 +631,49 @@ trace_register_changes ()
   TRC (r_usp, "usp", usp);
   TRC (r_isp, "isp", isp);
   TRC (r_pc, "pc", pc);
-  TRC (r_flags, "flags", flags);
+  if (oldregs.r_flags != regs.r_flags)
+    {
+      printf ("  flags ");
+      print_flags (oldregs.r_flags);
+      printf (":");
+      print_flags (regs.r_flags);
+    }
+  printf ("\033[0m\n");
+}
+
+#define DRC(f, n, id) \
+  printf("  %-3s %0*x", n,			       \
+	 reg_bytes[id]*2, (unsigned int)regs.f);       \
+
+void
+m32c_dump_all_registers ()
+{
+  printf ("\033[36mREGS:");
+  DRC (r[0].r_r0, "r0", r0);
+  DRC (r[0].r_r1, "r1", r1);
+  DRC (r[0].r_r2, "r2", r2);
+  DRC (r[0].r_r3, "r3", r3);
+  DRC (r[0].r_a0, "a0", a0);
+  DRC (r[0].r_a1, "a1", a1);
+  DRC (r[0].r_sb, "sb", sb);
+  DRC (r[0].r_fb, "fb", fb);
+  printf ("\n     ");
+  DRC (r[1].r_r0, "r0'", r0);
+  DRC (r[1].r_r1, "r1'", r1);
+  DRC (r[1].r_r2, "r2'", r2);
+  DRC (r[1].r_r3, "r3'", r3);
+  DRC (r[1].r_a0, "a0'", a0);
+  DRC (r[1].r_a1, "a1'", a1);
+  DRC (r[1].r_sb, "sb'", sb);
+  DRC (r[1].r_fb, "fb'", fb);
+  printf ("     \n");
+  DRC (r_intbh, "intbh", intbh);
+  DRC (r_intbl, "intbl", intbl);
+  DRC (r_usp, "usp", usp);
+  DRC (r_isp, "isp", isp);
+  DRC (r_pc, "pc", pc);
+  printf ("  flags ");
+  print_flags (regs.r_flags);
   printf ("\033[0m\n");
+  /*sim_disasm_one (); */
 }