+ if (set_property_bit)
+ property_bits |= property_bitmask;
+ else
+ property_bits &= ~property_bitmask;
+
+ if (property_bits == tape->property_bits)
+ {
+ Print("Tape already patched for '%s'!\n", mode);
+
+ return FALSE;
+ }
+
+ tape->property_bits = property_bits;