added stix_isint(), stix_inttooow(), stix_oowtoint().

added stix_eqints(), stix_neints(), stix_gtints(), stix_geints(), stix_ltints(), stix_leints().
enhanced some primitive handlers to support large integers

stix/kernel/Apex.st

@@ -43,6 +43,18 @@
 		self primitiveFailed.
 	}
 
+	#method(#class) ngcNew
+	{
+		<primitive: #_ngc_new>
+		self primitiveFailed.
+	}
+
+	#method(#class) ngcNew: anInteger
+	{
+		<primitive: #_ngc_new_with_size>
+		self primitiveFailed.
+	}
+
 	#method(#class) new
 	{
 		| x |
@@ -66,6 +78,11 @@
 		^self.
 	}
 
+	#method ngcDispose
+	{
+		<primitive: #_ngc_dispose>
+		self primitiveFailed.
+	}
 	## -------------------------------------------------------
 	## -------------------------------------------------------
 	#method shallowCopy

stix/kernel/Stix.st

@@ -186,6 +186,19 @@
 	{
 		^self to: end by: 1 do: aBlock.
 	}
+
+	#method abs
+	{
+		self < 0 ifTrue: [^self negated].
+		^self.
+	}
+
+	#method sign
+	{
+		self < 0 ifTrue: [^-1].
+		self > 0 ifTrue: [^1].
+		^0.
+	}
 }
 
 #class SmallInteger(Number)

stix/kernel/test-005.st

@@ -407,6 +407,7 @@ PROCESS TESTING
 
 		##self a: 1 b: 2 c: 3 d: 4 e: 5 f: 6 g: 7.
 		##self a: 1 b: 2 c: 3.
+
 "
 		FFI isNil dump.
 		FFI notNil dump.