* defs.h, findvar.c (extract_floating, store_floating): New functions.

	* Move SWAP_TARGET_AND_HOST from defs.h to findvar.c because it is
	now used only by extract_floating and store_floating.
	* valprint.c (print_floating): Use unsigned arithmetic.  Use
	extract_unsigned_integer instead of SWAP_TARGET_AND_HOST.
	Change sizeof (float) to 4 and sizeof (double) to 8 (those are always
	the relevant sizes for this code, which is in #ifdef IEEE_FLOAT).
	* values.c (unpack_long, unpack_double, value_from_double),
	valarith.c (value_binop), stabsread.c (define_symbol):
	Use extract_floating and store_floating instead of
	SWAP_TARGET_AND_HOST.
	* config/m68k/tm-m68k.h, config/i960/tm-i960.h (REGISTER_CONVERT_*):
	Use extract_floating and store_floating.
	* config/m88k/tm-m88k.h: Add comments (it should be doing the same).
	* i386-tdep.c (i386_extract_return_value),
	* remote-nindy.c (nindy_store_registers): Use store_floating.

3 files changed, 34 insertions, 16 deletions

diff --git a/gdb/config/i960/tm-i960.h b/gdb/config/i960/tm-i960.h
index 1337362..9523800 100644
--- a/gdb/config/i960/tm-i960.h
+++ b/gdb/config/i960/tm-i960.h
@@ -169,26 +169,32 @@ extern CORE_ADDR saved_pc_after_call ();
 
 extern struct ext_format ext_format_i960;
 
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO)     \
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO)	\
 { \
-  if ((REGNUM) >= FP0_REGNUM)   \
-    ieee_extended_to_double (&ext_format_i960, (FROM), (double *)(TO));     \
-  else                                  \
+  double val; \
+  if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \
+    { \
+      ieee_extended_to_double (&ext_format_i960, (FROM), &val); \
+      store_floating ((TO), REGISTER_VIRTUAL_SIZE (REGNUM), val); \
+    } \
+  else					\
     memcpy ((TO), (FROM), 4);	\
 }
 
 /* Convert data from virtual format for register REGNUM
    to raw format for register REGNUM.  */
 
-#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO)	\
 { \
-  if ((REGNUM) >= FP0_REGNUM)   \
-    double_to_ieee_extended (&ext_format_i960, (double *)(FROM), (TO));     \
-  else                                  \
-    memcpy ((TO), (FROM), 4); 	\
+  if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM)	\
+    { \
+      double val = extract_floating ((FROM), REGISTER_VIRTUAL_SIZE (REGNUM)); \
+      double_to_ieee_extended (&ext_format_i960, &val, (TO)); \
+    } \
+  else					\
+    memcpy ((TO), (FROM), 4);	\
 }
 
-
 /* Return the GDB type object for the "standard" data type
    of data in register N.  */
 
diff --git a/gdb/config/m68k/tm-m68k.h b/gdb/config/m68k/tm-m68k.h
index db7b6a4..a57db13 100644
--- a/gdb/config/m68k/tm-m68k.h
+++ b/gdb/config/m68k/tm-m68k.h
@@ -156,8 +156,12 @@ extern const struct ext_format ext_format_68881;
 
 #define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO)	\
 { \
-  if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM)	\
-    ieee_extended_to_double (&ext_format_68881, (FROM), (double *)(TO)); \
+  double val; \
+  if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \
+    { \
+      ieee_extended_to_double (&ext_format_68881, (FROM), &val); \
+      store_floating ((TO), REGISTER_VIRTUAL_SIZE (REGNUM), val); \
+    } \
   else					\
     memcpy ((TO), (FROM), 4);	\
 }
@@ -168,7 +172,10 @@ extern const struct ext_format ext_format_68881;
 #define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO)	\
 { \
   if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM)	\
-    double_to_ieee_extended (&ext_format_68881, (double *)(FROM), (TO)); \
+    { \
+      double val = extract_floating ((FROM), REGISTER_VIRTUAL_SIZE (REGNUM)); \
+      double_to_ieee_extended (&ext_format_68881, &val, (TO)); \
+    } \
   else					\
     memcpy ((TO), (FROM), 4);	\
 }
diff --git a/gdb/config/m88k/tm-m88k.h b/gdb/config/m88k/tm-m88k.h
index 68bdd61..c8a7d9b 100644
--- a/gdb/config/m88k/tm-m88k.h
+++ b/gdb/config/m88k/tm-m88k.h
@@ -386,10 +386,13 @@ if (!target_is_m88110) \
 
 #define REGISTER_CONVERTIBLE(N) ((N) >= XFP_REGNUM)
 
-  /* Convert data from raw format for register REGNUM
-     to virtual format for register REGNUM.  */
+extern const struct ext_format ext_format_m88110;
+
+/* Convert data from raw format for register REGNUM
+   to virtual format for register REGNUM.  */
+
+/* FIXME: Use store_floating like tm-m68k.h.  */
 
-  extern const struct ext_format ext_format_m88110;
 #define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
 { \
   if ((REGNUM) < XFP_REGNUM) \
@@ -401,6 +404,8 @@ if (!target_is_m88110) \
 /* Convert data from virtual format for register REGNUM
    to raw format for register REGNUM.  */
 
+/* FIXME: Use extract_floating like tm-m68k.h.  */
+
 #define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
 { \
     if ((REGNUM) < XFP_REGNUM) \