in the example in the folder Keil\C51\EXAMPLES\FarMemory\16MB RAM on ADuC812.
FVAR (char, 0x015678) = 0x5A; i = FVAR (char, 0x015678);
FVAR (char, 0x016000) = 0x5A; i = FVAR (char, 0x016000);
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