Hi Patrick,

the fastest way:
You let your array start at XDATA address 0x0000 and you reserve 256 bytes for every member. Then no multiplication and no addition needed:


#include <types.h>

uchar xdata member_array[50][256] _at_ 0x0000;

uchar readbyte( uchar member_no, uchar byte_no )
{
return *((uchar xdata *) ((uint)member_no * 256 | byte_no));
}


My <types.h> can you found on my web.


Peter