diff --git a/programs/develop/fasm/trunk/WHATSNEW.TXT b/programs/develop/fasm/trunk/WHATSNEW.TXT
index 2df13d5ea..79ddb1787 100644
--- a/programs/develop/fasm/trunk/WHATSNEW.TXT
+++ b/programs/develop/fasm/trunk/WHATSNEW.TXT
@@ -2,9 +2,23 @@
 Visit http://flatassembler.net/ for more information.
 
 
+version 1.70.03 (Jun 29, 2012)
+
+[-] Allowed to freely upgrade or downgrade the relocatable addresses in
+    object format between the 32-bit or 64-bit size.
+
+
+version 1.70.02 (May 22, 2012)
+
+[-] Corrected the optimization of segment prefixes when the extended syntax
+    of some string instructions ("cmps", "lods", "movs" and "outs") is
+    used in long mode. Now it is consistent with optimizations done with
+    all the other instructions.
+
+
 version 1.70.01 (Apr 30, 2012)
 
-[-] Corrected a recently introduced bug that caused some incorrect
+[-] Corrected a recently introduced bug that caused some illegal
     address expressions to cause an error prematurely during the
     parsing stage.
 
@@ -19,7 +33,7 @@ version 1.70 (Apr 17, 2012)
 [+] Extended the syntax of "rept" directive to allow numerical expressions
     to be calculated by preprocessor in its arguments.
 
-[+] Added "large" and "NX" settings from PE format.
+[+] Added "large" and "NX" settings for PE format.
 
 [+] Allowed PE fixups to be resolved anywhere in the generated executable.
 
diff --git a/programs/develop/fasm/trunk/exprcalc.inc b/programs/develop/fasm/trunk/exprcalc.inc
index dd0414a7a..633c91f06 100644
--- a/programs/develop/fasm/trunk/exprcalc.inc
+++ b/programs/develop/fasm/trunk/exprcalc.inc
@@ -1560,18 +1560,18 @@ get_address_value:
 	or	[address_size],al
 	shr	al,4
 	or	ah,ah
-	jz	address_size_ok
-	cmp	al,ah
-	je	address_size_ok
-	cmp	ax,0804h
-	jne	address_sizes_do_not_agree
-	cmp	[value_type],2
-	ja	value_type_correction_ok
-	mov	[value_type],2
-      value_type_correction_ok:
-	mov	eax,[edi]
-	cdq
-	cmp	edx,[edi+4]
+	jz	address_size_ok
+	cmp	al,ah
+	je	address_size_ok
+	cmp	ax,0408h
+	je	address_sizes_mixed
+	cmp	ax,0804h
+	jne	address_sizes_do_not_agree
+      address_sizes_mixed:
+	mov	[value_type],2
+	mov	eax,[edi]
+	cdq
+	cmp	edx,[edi+4]
 	je	address_size_ok
 	cmp	[error_line],0
 	jne	address_size_ok
@@ -1802,7 +1802,10 @@ calculate_relative_offset:
 	jnz	relative_offset_unallowed
 	cmp	bl,6
 	je	plt_relative_offset
-	cmp	bl,[labels_type]
+	mov	bh,[labels_type]
+	cmp	bl,bh
+	je	set_relative_offset_type
+	cmp	bx,0402h
 	je	set_relative_offset_type
       relative_offset_unallowed:
 	call	recoverable_misuse
diff --git a/programs/develop/fasm/trunk/version.inc b/programs/develop/fasm/trunk/version.inc
index 6903edad7..18fd49c9d 100644
--- a/programs/develop/fasm/trunk/version.inc
+++ b/programs/develop/fasm/trunk/version.inc
@@ -33,7 +33,7 @@
 ; cannot simply be copied and put under another distribution licence
 ; (including the GNU Public Licence).
 
-VERSION_STRING equ "1.70.01"
+VERSION_STRING equ "1.70.03"
 
 VERSION_MAJOR = 1
 VERSION_MINOR = 70
diff --git a/programs/develop/fasm/trunk/x86_64.inc b/programs/develop/fasm/trunk/x86_64.inc
index 8f91dd237..bc7954eef 100644
--- a/programs/develop/fasm/trunk/x86_64.inc
+++ b/programs/develop/fasm/trunk/x86_64.inc
@@ -3312,10 +3312,8 @@ movs_instruction:
 	je	invalid_address_size
 	call	address_16bit_prefix
       movs_store:
-	cmp	[segment_register],4
-	je	movs_segment_ok
-	call	store_segment_prefix
-      movs_segment_ok:
+	xor	ebx,ebx
+	call	store_segment_prefix_if_necessary
 	mov	al,0A4h
       movs_check_size:
 	mov	bl,[operand_size]
@@ -3359,10 +3357,8 @@ lods_instruction:
 	je	invalid_address_size
 	call	address_16bit_prefix
       lods_store:
-	cmp	[segment_register],4
-	je	lods_segment_ok
-	call	store_segment_prefix
-      lods_segment_ok:
+	xor	ebx,ebx
+	call	store_segment_prefix_if_necessary
 	mov	al,0ACh
 	jmp	movs_check_size
 stos_instruction:
@@ -3452,10 +3448,8 @@ cmps_instruction:
 	je	invalid_address_size
 	call	address_16bit_prefix
       cmps_store:
-	cmp	[segment_register],4
-	je	cmps_segment_ok
-	call	store_segment_prefix
-      cmps_segment_ok:
+	xor	ebx,ebx
+	call	store_segment_prefix_if_necessary
 	mov	al,0A6h
 	jmp	movs_check_size
 ins_instruction:
@@ -3537,10 +3531,8 @@ outs_instruction:
 	je	invalid_address_size
 	call	address_16bit_prefix
       outs_store:
-	cmp	[segment_register],4
-	je	outs_segment_ok
-	call	store_segment_prefix
-      outs_segment_ok:
+	xor	ebx,ebx
+	call	store_segment_prefix_if_necessary
 	mov	al,6Eh
 	jmp	ins_check_size
 xlat_instruction:
@@ -6880,6 +6872,8 @@ store_instruction:
 	je	address_immediate_sib
 	test	ch,44h
 	jnz	address_immediate_32bit
+	test	ch,88h
+	jnz	address_immediate_32bit
 	test	ch,22h
 	jnz	address_immediate_16bit
 	or	ch,ch