Operation: JNC Function: Jump if Carry Not Set Syntax: JNC reladdr Instructions OpCode Bytes Cycles Flags JNC reladdr 0x50 2 2 None Description: JNC branches to the address indicated by reladdr if the carry bit is not set. If the carry bit is set program execution continues with the instruction following the JNB instruction. See Also: JC, Instruction Set (C) Copyright 1997 - 2008 by Vault Information Services LLC. All Rights Reserved. Information provided "as-is" without warranty. Please see details. Contact us for usage and copy permission.