diff -Nru gcc-3.2.1/gcc/config/float-h8300.h gcc-3.2.1-h8300/gcc/config/float-h8300.h
--- gcc-3.2.1/gcc/config/float-h8300.h	1970-01-01 09:00:00.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config/float-h8300.h	2003-10-10 02:14:45.000000000 +0900
@@ -0,0 +1,128 @@
+/* float.h for target h8300-elf with optional IEEE 32 bit double format: based float-sh.h */
+#ifndef _FLOAT_H_
+#define _FLOAT_H_
+#include "config/h8300/h8300.h"
+
+/* Produced by enquire version 4.3, CWI, Amsterdam */
+
+   /* Radix of exponent representation */
+#undef FLT_RADIX
+#define FLT_RADIX 2
+   /* Number of base-FLT_RADIX digits in the significand of a float */
+#undef FLT_MANT_DIG
+#define FLT_MANT_DIG 24
+   /* Number of decimal digits of precision in a float */
+#undef FLT_DIG
+#define FLT_DIG 6
+   /* Addition rounds to 0: zero, 1: nearest, 2: +inf, 3: -inf, -1: unknown */
+#undef FLT_ROUNDS
+#define FLT_ROUNDS 1
+   /* Difference between 1.0 and the minimum float greater than 1.0 */
+#undef FLT_EPSILON
+#define FLT_EPSILON 1.19209290e-07F
+   /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */
+#undef FLT_MIN_EXP
+#define FLT_MIN_EXP (-125)
+   /* Minimum normalised float */
+#undef FLT_MIN
+#define FLT_MIN 1.17549435e-38F
+   /* Minimum int x such that 10**x is a normalised float */
+#undef FLT_MIN_10_EXP
+#define FLT_MIN_10_EXP (-37)
+   /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */
+#undef FLT_MAX_EXP
+#define FLT_MAX_EXP 128
+   /* Maximum float */
+#undef FLT_MAX
+#define FLT_MAX 3.40282347e+38F
+   /* Maximum int x such that 10**x is a representable float */
+#undef FLT_MAX_10_EXP
+#define FLT_MAX_10_EXP 38
+
+   /* Number of base-FLT_RADIX digits in the significand of a double */
+#undef DBL_MANT_DIG
+#define DBL_MANT_DIG (DOUBLE_TYPE_SIZE == 64?53:24)
+   /* Number of decimal digits of precision in a double */
+#undef DBL_DIG
+#define DBL_DIG (DOUBLE_TYPE_SIZE == 64?15:6)
+   /* Difference between 1.0 and the minimum double greater than 1.0 */
+#undef DBL_EPSILON
+#define DBL_EPSILON (DOUBLE_TYPE_SIZE == 64?2.2204460492503131e-16:1.19209290e-07F)
+   /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
+#undef DBL_MIN_EXP
+#define DBL_MIN_EXP (DOUBLE_TYPE_SIZE == 64?(-1021):(-125))
+   /* Minimum normalised double */
+#undef DBL_MIN
+#define DBL_MIN (DOUBLE_TYPE_SIZE == 64?2.2250738585072014e-308:1.17549435e-38F)
+   /* Minimum int x such that 10**x is a normalised double */
+#undef DBL_MIN_10_EXP
+#define DBL_MIN_10_EXP (DOUBLE_TYPE_SIZE == 64?(-307):(-37))
+   /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
+#undef DBL_MAX_EXP
+#define DBL_MAX_EXP (DOUBLE_TYPE_SIZE == 64?1024:128)
+   /* Maximum double */
+#undef DBL_MAX
+#define DBL_MAX (DOUBLE_TYPE_SIZE == 64?1.7976931348623157e+308:3.40282347e+38F)
+   /* Maximum int x such that 10**x is a representable double */
+#undef DBL_MAX_10_EXP
+#define DBL_MAX_10_EXP (DOUBLE_TYPE_SIZE == 64?308:38)
+
+/* Because -m3e and -m4-single-only have 32-bit doubles, we append L
+   to the doubles below, so that they're not truncated.  */
+
+   /* Number of base-FLT_RADIX digits in the significand of a long double */
+#undef LDBL_MANT_DIG
+#define LDBL_MANT_DIG (DOUBLE_TYPE_SIZE == 64?53:24)
+   /* Number of decimal digits of precision in a long double */
+#undef LDBL_DIG
+#define LDBL_DIG (DOUBLE_TYPE_SIZE == 64?15:6)
+   /* Difference between 1.0 and the minimum long double greater than 1.0 */
+#undef LDBL_EPSILON
+#define LDBL_EPSILON (DOUBLE_TYPE_SIZE == 64?2.2204460492503131e-16L:1.19209290e-07F)
+   /* Minimum int x such that FLT_RADIX**(x-1) is a normalised long double */
+#undef LDBL_MIN_EXP
+#define LDBL_MIN_EXP (DOUBLE_TYPE_SIZE == 64?(-1021):(-125))
+   /* Minimum normalised long double */
+#undef LDBL_MIN
+#define LDBL_MIN (DOUBLE_TYPE_SIZE == 64?2.2250738585072014e-308L:1.17549435e-38F)
+   /* Minimum int x such that 10**x is a normalised long double */
+#undef LDBL_MIN_10_EXP
+#define LDBL_MIN_10_EXP (DOUBLE_TYPE_SIZE == 64?(-307):(-37))
+   /* Maximum int x such that FLT_RADIX**(x-1) is a representable long double */
+#undef LDBL_MAX_EXP
+#define LDBL_MAX_EXP (DOUBLE_TYPE_SIZE == 64?1024:128)
+   /* Maximum long double */
+#undef LDBL_MAX
+#define LDBL_MAX (DOUBLE_TYPE_SIZE == 64?1.7976931348623157e+308L:3.40282347e+38F)
+   /* Maximum int x such that 10**x is a representable long double */
+#undef LDBL_MAX_10_EXP
+#define LDBL_MAX_10_EXP (DOUBLE_TYPE_SIZE == 64?308:38)
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+   /* The floating-point expression evaluation method.
+        -1  indeterminate
+         0  evaluate all operations and constants just to the range and
+            precision of the type
+         1  evaluate operations and constants of type float and double
+            to the range and precision of the double type, evaluate
+            long double operations and constants to the range and
+            precision of the long double type
+         2  evaluate all operations and constants to the range and
+            precision of the long double type
+   */
+# undef FLT_EVAL_METHOD
+# define FLT_EVAL_METHOD	0
+
+   /* Number of decimal digits to enable rounding to the given number of
+      decimal digits without loss of precision.
+         if FLT_RADIX == 10^n:  #mantissa * log10 (FLT_RADIX)
+         else                :  ceil (1 + #mantissa * log10 (FLT_RADIX))
+      where #mantissa is the number of bits in the mantissa of the widest
+      supported floating-point type.
+   */
+# undef DECIMAL_DIG
+# define DECIMAL_DIG	17
+
+#endif	/* C99 */
+
+#endif /*  _FLOAT_H_ */
diff -Nru gcc-3.2.1/gcc/config/h8300/extfloatlib.c gcc-3.2.1-h8300/gcc/config/h8300/extfloatlib.c
--- gcc-3.2.1/gcc/config/h8300/extfloatlib.c	1970-01-01 09:00:00.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config/h8300/extfloatlib.c	2003-10-10 02:14:45.000000000 +0900
@@ -0,0 +1,11 @@
+/* from /gcc/config/m68k/fpgnulib.c */
+
+/* convert float to int */
+long
+__fixdfsi (double a1);
+int
+__fixsfsi (float a1)
+{
+  double foo = a1;
+  return __fixdfsi (foo);
+}
diff -Nru gcc-3.2.1/gcc/config/h8300/h8300.c gcc-3.2.1-h8300/gcc/config/h8300/h8300.c
--- gcc-3.2.1/gcc/config/h8300/h8300.c	2002-02-23 23:17:25.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config/h8300/h8300.c	2003-10-10 02:14:45.000000000 +0900
@@ -1393,6 +1393,8 @@
       if (from == ARG_POINTER_REGNUM && to == STACK_POINTER_REGNUM)
 	offset += UNITS_PER_WORD;	/* Skip saved PC */
     }
+  if ((TARGET_H8300H || TARGET_H8300S) && TARGET_MODE)
+    offset -= 2;
   return offset;
 }
 
diff -Nru gcc-3.2.1/gcc/config/h8300/h8300.h gcc-3.2.1-h8300/gcc/config/h8300/h8300.h
--- gcc-3.2.1/gcc/config/h8300/h8300.h	2002-05-22 08:44:58.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config/h8300/h8300.h	2003-10-10 02:14:45.000000000 +0900
@@ -38,9 +38,12 @@
 extern const char * const *h8_reg_names;
 
 /* Names to predefine in the preprocessor for this target machine.  */
-
+/*
 #define CPP_PREDEFINES \
 "-D__LONG_MAX__=2147483647L -D__LONG_LONG_MAX__=2147483647L"
+*/
+#define CPP_PREDEFINES \
+"-D__LONG_MAX__=2147483647L"
 
 #define CPP_SPEC \
   "%{!mh:%{!ms:-D__H8300__}} %{mh:-D__H8300H__} %{ms:-D__H8300S__} \
@@ -51,6 +54,7 @@
    %{mh:-Acpu=h8300h -Amachine=h8300h} \
    %{ms:-Acpu=h8300s -Amachine=h8300s} \
    %{!mint32:-D__INT_MAX__=32767} %{mint32:-D__INT_MAX__=2147483647} \
+   %{!mint32:-D__LONG_LONG_MAX__=2147483647L} %{mint32:-D__LONG_LONG_MAX__=9223372036854775807LL} \
    %(subtarget_cpp_spec)"
 
 #define SUBTARGET_CPP_SPEC ""
@@ -107,6 +111,8 @@
    alignment.  */
 #define TARGET_ALIGN_300 (target_flags & 8192)
 
+#define TARGET_MODE (target_flags & 16384)
+
 /* Macro to define tables used to set the flags.
    This is a list in braces of pairs in braces,
    each pair being { "NAME", VALUE }
@@ -131,6 +137,7 @@
     {"h",		4096,  N_("Generate H8/300H code")},		\
     {"no-h",		-4096, N_("Do not generate H8/300H code")},	\
     {"align-300",	8192,  N_("Use H8/300 alignment rules")},	\
+    {"n",               16384, N_("Normal Mode Stackframe")},           \
     { "", TARGET_DEFAULT, NULL}}
 
 #ifdef IN_LIBGCC2
@@ -220,9 +227,9 @@
 #define SHORT_TYPE_SIZE	16
 #define INT_TYPE_SIZE		(TARGET_INT32 ? 32 : 16)
 #define LONG_TYPE_SIZE		32
-#define LONG_LONG_TYPE_SIZE	32
+#define LONG_LONG_TYPE_SIZE	(TARGET_INT32 ? 64 : 32)
 #define FLOAT_TYPE_SIZE	32
-#define DOUBLE_TYPE_SIZE	32
+#define DOUBLE_TYPE_SIZE	(TARGET_INT32 ? 64 : 32)
 #define LONG_DOUBLE_TYPE_SIZE	DOUBLE_TYPE_SIZE
 
 #define MAX_FIXED_MODE_SIZE	32
@@ -1337,4 +1344,20 @@
 
 #define MOVE_RATIO 3
 
+#ifdef IN_LIBGCC2
+#undef LONG_LONG_TYPE_SIZE
+#undef DOUBLE_TYPE_SIZE
+#undef LONG_DOUBLE_TYPE_SIZE
+#if __INT_MAX__ == 32767
+#define DI SI
+#define DF SF
+#define LONG_LONG_TYPE_SIZE 32
+#define DOUBLE_TYPE_SIZE 32
+#else
+#define LONG_LONG_TYPE_SIZE 64
+#define DOUBLE_TYPE_SIZE 64
+#endif
+#define LONG_DOUBLE_TYPE_SIZE	DOUBLE_TYPE_SIZE
+#endif
+
 #endif /* ! GCC_H8300_H */
diff -Nru gcc-3.2.1/gcc/config/h8300/t-h8300 gcc-3.2.1-h8300/gcc/config/h8300/t-h8300
--- gcc-3.2.1/gcc/config/h8300/t-h8300	2001-08-31 02:51:04.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config/h8300/t-h8300	2003-10-10 02:37:29.000000000 +0900
@@ -5,18 +5,16 @@
 LIB1ASMFUNCS = _cmpsi2 _ucmpsi2 _divhi3 _divsi3 _mulhi3 _mulsi3 \
   _floatdisf _fixsfdi _fixunssfdi _fixunssfsi_asm
 
-LIB2FUNCS_EXTRA = $(srcdir)/config/h8300/fixunssfsi.c
+LIB2FUNCS_EXTRA = $(srcdir)/config/h8300/fixunssfsi.c $(srcdir)/floatlib.c $(srcdir)/config/h8300/extfloatlib.c
 
-# We do not have DF or DI types, so fake out the libgcc2 compilation.
-TARGET_LIBGCC2_CFLAGS = -DDF=SF -DDI=SI
 
 # We want fine grained libraries, so use the new code to build the
 # floating point emulation libraries.
 FPBIT = fp-bit.c
+DPBIT = dp-bit.c
 
 fp-bit.c: $(srcdir)/config/fp-bit.c
 	echo '#define FLOAT' > fp-bit.c
-	echo '#define FLOAT_ONLY' >> fp-bit.c
 	echo '#define SMALL_MACHINE' >> fp-bit.c
 	echo '#ifdef __H8300__' >> fp-bit.c
 	echo '#define CMPtype HItype' >> fp-bit.c
@@ -25,8 +23,17 @@
 	echo '#endif' >> fp-bit.c
 	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
 
-MULTILIB_OPTIONS = mh/ms mint32
-MULTILIB_DIRNAMES = h8300h h8300s int32
+dp-bit.c: $(srcdir)/config/fp-bit.c
+	echo '#define SMALL_MACHINE' > dp-bit.c
+	echo '#ifdef __H8300__' >> dp-bit.c
+	echo '#define CMPtype HItype' >> dp-bit.c
+	echo '#else' >> dp-bit.c
+	echo '#define CMPtype SItype' >> dp-bit.c
+	echo '#endif' >> dp-bit.c
+	cat $(srcdir)/config/fp-bit.c >> dp-bit.c
+
+MULTILIB_OPTIONS = mh/ms mn mint32
+MULTILIB_DIRNAMES = h8300h h8300s normal int32
 MULTILIB_EXCEPTIONS = mint32
 
 LIBGCC = stmp-multilib
diff -Nru gcc-3.2.1/gcc/config.gcc gcc-3.2.1-h8300/gcc/config.gcc
--- gcc-3.2.1/gcc/config.gcc	2002-10-24 02:28:29.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/config.gcc	2003-10-10 02:14:45.000000000 +0900
@@ -859,7 +859,7 @@
 h8300-*-elf*)
 	tmake_file="h8300/t-h8300 h8300/t-elf"
 	tm_file="h8300/h8300.h h8300/elf.h"
-	float_format=i32
+	float_format=h8300
 	;;
 h8300-*-*)
 	float_format=i32
diff -Nru gcc-3.2.1/gcc/floatlib.c gcc-3.2.1-h8300/gcc/floatlib.c
--- gcc-3.2.1/gcc/floatlib.c	2001-10-11 12:15:38.000000000 +0900
+++ gcc-3.2.1-h8300/gcc/floatlib.c	2003-10-10 02:14:45.000000000 +0900
@@ -430,13 +430,13 @@
 float
 __floatsisf (long a1)
 {
-    (float)__floatsidf(a1);
+    return (float)__floatsidf(a1);
 }
 
 float
 __floatdisf (long long a1)
 {
-    (float)__floatdidf(a1);
+    return (float)__floatdidf(a1);
 }
 
 /* negate a float */