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I define an area of memory that in 'non-volatile' so it doesn't get cleared on powerup. I do this is a module called memmap.asm like this: MyData DS 512 ;Located at 0x801C In another module, I want to declare an array of structures starting at the address of MyData. I tried this: struct tagData { BYTE Num1[32]; BYTE Num2[32]; }; struct tagData xdata MyArray[8] _at_ 0x801C But this doesn't complile. What's wrong? Thanks for any suggestions, RickL
hello, A member of a structure or a parameter may not contain the specification of a memory type. The object to which the pointer refers may, however, contain a memory type. For example: struct vp { char code c; int xdata i; }; generates error 258. struct v1 { char c; int xdata *i; }; is the correct declaration for the struct. a+ khemaies changuel@yahoo.com