// Nothing may follow.
			return
		}
	}
	if r2 != 0 {
		p.errorf("indirect through register pair")
	}
	if prefix == '$' {
		a.Type = obj.TYPE_ADDR
	}
	if r1 == arch.RPC && prefix != 0 {
		p.errorf("illegal addressing mode for PC")
	}
	if scale == 0 && p.peek() == '(' {
		// General form (R)(R*scale).
		p.next()
		tok := p.next()
		if p.atRegisterExtension() {