I've tried to mod the xbanking link file to generate paging for my device. I was trying to use segment B which is defined between 8000-BFFF. Then page into this to give 128k. I have set the HData to 0000-1FFFF in the options for far data. Here are the mods i made. LOAD_BANK MACRO LOCAL lab MOV DPL,R1 MOV DPH,R2 ORL DPH,#80H ;Now generate the page MOV A,R2 RL A RL A ANL A,#03H MOV ?C?XPAGE1SFR,A Then used one of the examples from banking and tried this. FVAR (char, 0x15678) = 0x5A; i = FVAR (char, 0x15678); i comes out to be 1. Stepping through the assembly code looks fine. Is this correct usage? David