In NASM, call far [edi] gets converted to 67 48 FF 1F which is translated as call far tword ptr ds:[edi] by my debugger. Why is the destination of size tword?
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user1432882
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2Because there's a 2-byte segment selector as well as the 8-byte absolute address. Far call sets a new CS:RIP, not just RIP. Are you sure you want a far, not just near indirect? Also, are you sure you want to be using a 32-bit register to hold the pointer to that memory operand? – Peter Cordes Nov 19 '21 at 04:39