LDPSW	8(R1), (ZR, R2)     // 3f084169
	STP	(R3, R4), (R5)      // a31000a9
	STP	(R3, R4), 8(R5)     // a39000a9
	STP.W	(R3, R4), 8(R5)     // a39080a9
	STP.P	(R3, R4), 8(R5)     // a39080a8
	STP	(R3, R4), -8(R5)    // a3903fa9
	STP	(R3, R4), -4(R5)    // bb1000d1631300a9
	STP	(R3, R4), 11(R0)    // 1b2c0091631300a9
	STP	(R3, R4), 1024(R0)  // 1b001091631300a9
	STP	(R3, R4), (RSP)     // e31300a9

		// TODO: Consistency in the encoding would be nice here.
		if p.arch.InFamily(sys.ARM, sys.ARM64) {
			// Special form
			// ARM: destination register pair (R1, R2).
			// ARM64: register pair (R1, R2) for LDP/STP.
			if prefix != 0 || scale != 0 {
				p.errorf("illegal address mode for register pair")
				return
			}
			a.Type = obj.TYPE_REGREG
			a.Offset = int64(r2)
			// Nothing may follow
			return
		}