JUMP Instruction Property 2

The jump (JUMP) instruction does not affect memory values. More formally:

if the following are true:

  • instruction #i is jump imm=jump_to
  • the PC at time t = i

then value of cell x at time (t + 1) = value of cell x at time t

Here is an example where the first instruction is a JUMP instruction.

Instructions
Memory Cells
Program Counter Time
0 0
LW Computer Simulator

Note that memory cell #3, among others, remains unchanged when the JUMP instruction is executed. In other words:

if the following are true:

  • instruction #0 is jump imm=2
  • the PC at time 0 = 0

then value of cell 3 at time (0 + 1) = value of cell 3 at time 0


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