First post, by superfury
When is this bit set? Is it set when the descriptor is read from memory during a segment register load(mov segreg,reg with the descriptor A-bit in memory being 0)? Or is this set when a write to a segment occurs(e.g. mov [mem],xxx with DS's A-bit bding 0)? Or when a read/write occurs(any access through a segment register that's cached with the bit being 0)?
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