[Blackfin] arch: Let the pre-processor do the math to save a few cycl…

…es - no functional changes Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
git-mirror · Dec 21, 2007 · d5c4b5e · d5c4b5e
1 parent 6f3ed70
commit d5c4b5e
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
@@ -633,9 +633,7 @@ ENTRY(_ret_from_exception)
 	[sp + PT_IPEND] = r0;
 
 1:
-	r1 = 0x37(Z);
-	r2 = ~r1;
-	r2.h = 0;
+	r2 = LO(~0x37) (Z);
 	r0 = r2 & r0;
 	cc = r0 == 0;
 	if !cc jump 4f;	/* if not return to user mode, get out */