c.instoffset = int64(c.autosize) + a.Offset - int64(c.extrasize)
			return autoclass(c.instoffset)

		case obj.NAME_PARAM:
			if a.Reg == REGSP {
				// unset base register for better printing, since
				// a.Offset is still relative to pseudo-FP.
				a.Reg = obj.REG_NONE
			}
			c.instoffset = int64(c.autosize) + a.Offset + 8
			return autoclass(c.instoffset)

		case obj.NAME_NONE:
			if a.Index != 0 {