RePage: A Novel Over-Air Reprogramming Approach Based on Paging Mechanism Applied in Fog Computing

Figure 3

Memory layout and two-step calling process: for instance, function Time1.fired contained has address 0x1250 and is cached in page FunPage1. Once one call instruction needs to invocate Timer.fired, it will jump to AddressFunPagex saved in IDML and then obtain real entry address of Timer.fired (0xB013H) by register relative addressing. After obtaining real entry address, the invocation procedure is completed.