Instructions affecting the Instruction Counter

• At the end of each operation the instruction counter is incremented by one.
• I.e., it points to the next address in memory.
• Notice, that this implies that only a fixed sequence of operations can be performed.
• To allow for different sequences of execution conditional and unconditional JUMPs are available.
• A conditional jump, might check if the result of the last operation was zero.
• If so, the instruction counter is not incremented by one but by a specified amount.
• This capability translates to ``if''-statements in higher-level programming languages.
• It is crucial for conditional execution of program segments.