Pretty printing for m68k status register

Pretty printing for m68k status register

[Andreas Schwab]

This implements pretty printing of the bits in the m68k status register.

Andreas.

2007-06-30  Andreas Schwab  <schwab@suse.de>

	* m68k-tdep.c (m68k_ps_type): New.
	(m68k_init_types): New.
	(m68k_register_type): Use m68k_ps_type for PS register.
	(_initialize_m68k_tdep): Call m68k_init_types.

Index: gdb/m68k-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/m68k-tdep.c,v
retrieving revision 1.121
diff -u -a -p -a -u -p -r1.121 gdb/m68k-tdep.c
--- gdb/m68k-tdep.c	30 Jun 2007 15:35:19 -0000	1.121
+++ gdb/m68k-tdep.c	30 Jun 2007 17:11:32 -0000
@@ -69,6 +69,32 @@ m68k_local_breakpoint_from_pc (CORE_ADDR
   *lenptr = sizeof (break_insn);
   return break_insn;
 }
+\f
+
+/* Type for %ps.  */
+struct type *m68k_ps_type;
+
+/* Construct types for ISA-specific registers.  */
+static void
+m68k_init_types (void)
+{
+  struct type *type;
+
+  type = init_flags_type ("builtin_type_m68k_ps", 4);
+  append_flags_type_flag (type, 0, "C");
+  append_flags_type_flag (type, 1, "V");
+  append_flags_type_flag (type, 2, "Z");
+  append_flags_type_flag (type, 3, "N");
+  append_flags_type_flag (type, 4, "X");
+  append_flags_type_flag (type, 8, "I0");
+  append_flags_type_flag (type, 9, "I1");
+  append_flags_type_flag (type, 10, "I2");
+  append_flags_type_flag (type, 12, "M");
+  append_flags_type_flag (type, 13, "S");
+  append_flags_type_flag (type, 14, "T0");
+  append_flags_type_flag (type, 15, "T1");
+  m68k_ps_type = type;
+}
 
 /* Return the GDB type object for the "standard" data type of data in
    register N.  This should be int for D0-D7, SR, FPCONTROL and
@@ -112,6 +138,9 @@ m68k_register_type (struct gdbarch *gdba
   if (regnum >= M68K_A0_REGNUM && regnum <= M68K_A0_REGNUM + 7)
     return builtin_type_void_data_ptr;
 
+  if (regnum == M68K_PS_REGNUM)
+    return m68k_ps_type;
+
   return builtin_type_int32;
 }
 
@@ -1249,4 +1278,7 @@ void
 _initialize_m68k_tdep (void)
 {
   gdbarch_register (bfd_arch_m68k, m68k_gdbarch_init, m68k_dump_tdep);
+
+  /* Initialize the m68k-specific register types.  */
+  m68k_init_types ();
 }

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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