symbol eip undefined
c get instruction pointer
extended instruction pointer
stack pointer in cnasm eip undefined

10 Feb 2015 The Z80 spec states that the PC (Zilog for instruction pointer) is life interesting back in the bad old 8086 days, when a long pointer of null (0:0) 23 Feb 2012 Execution should never reach these filler instructions, so we needed to we arrived at this bad instruction pointer from a call or a ret instruction. EIP is the instruction pointer, and it cannot me a subject of MOV instructions, because its purpose is very special. For example, if your execution moves from one 25 Sep 2008 Bad-IP is Bad Instruction Pointer. From the description of your problem, I would assume it is a stack corruption instead of a stack overflow. Your problem is ASLR randomly choosing where your program is loaded. You can turn off ASLR in Linux using sudo sysctl -w