--- a/SmallInteger.st	Thu Mar 10 16:21:42 2016 +0100
+++ b/SmallInteger.st	Thu Mar 10 16:21:48 2016 +0100
@@ -2608,9 +2608,9 @@
 !
 
 digitLength
-    "return the number bytes required to represent this Integer.
-     For negative receivers, the digitLength of its absolute value
-     is returned."
+    "return the number of bytes needed for the unsigned binary representation of the receiver.
+     For negative receivers, the result is not defined by the language standard.
+     ST/X returns the digitLength of its absolute value."
 
 %{  /* NOCONTEXT */
 #ifdef __SCHTEAM__
@@ -2619,21 +2619,21 @@
 
     if (val < 0) val = -val;
     if ((val & 0xFFFFFFFF00000000L) != 0) {
-	val >>= 32;
-	offs = 4;
+        val >>= 32;
+        offs = 4;
     }
     if ((val & 0xFFFF0000) != 0) {
-	if ((val & 0xFF000000) != 0) {
-	    offs += 4;
-	} else {
-	    offs += 3;
-	}
+        if ((val & 0xFF000000) != 0) {
+            offs += 4;
+        } else {
+            offs += 3;
+        }
     } else {
-	if ((val & 0x0000FF00)!= 0) {
-	    offs += 2;
-	} else {
-	    offs += 1;
-	}
+        if ((val & 0x0000FF00)!= 0) {
+            offs += 2;
+        } else {
+            offs += 1;
+        }
     }
     return __c__._RETURN( STInteger._qnew(offs) );
 #else
@@ -2641,27 +2641,27 @@
     int offs = 0;
 
     if (val < 0) {
-	val = -val;
+        val = -val;
     }
 # if __POINTER_SIZE__ == 8
     if (val & 0xFFFFFFFF00000000L) {
-	val >>= 32;
-	offs = 4;
+        val >>= 32;
+        offs = 4;
     }
 # endif
 
     if (val & 0xFFFF0000) {
-	if (val & 0xFF000000) {
-	    RETURN ( __mkSmallInteger(4+offs));
-	} else {
-	    RETURN ( __mkSmallInteger(3+offs));
-	}
+        if (val & 0xFF000000) {
+            RETURN ( __mkSmallInteger(4+offs));
+        } else {
+            RETURN ( __mkSmallInteger(3+offs));
+        }
     } else {
-	if (val & 0x0000FF00) {
-	    RETURN ( __mkSmallInteger(2+offs));
-	} else {
-	    RETURN ( __mkSmallInteger(1+offs));
-	}
+        if (val & 0x0000FF00) {
+            RETURN ( __mkSmallInteger(2+offs));
+        } else {
+            RETURN ( __mkSmallInteger(1+offs));
+        }
     }
 #endif /* not SCHTEAM */
 %}.