a[1] = a[uint8(v>>25)]
	// ppc64x: -"CLRLSLDI", "RLWNM\t[$]9, R[0-9]+, [$]23, [$]29, R[0-9]+"
	a[2] = a[v>>25&0x7F]
	// ppc64x: -"CLRLSLDI", "RLWNM\t[$]3, R[0-9]+, [$]29, [$]29, R[0-9]+"
	a[3] = a[(v>>31)&0x01]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[4] = a[(v>>30)&0x07]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[5] = a[(v>>32)&0x01]
	// ppc64x: "SRD", "CLRLSLDI", -"RLWNM"
	a[6] = a[(v>>34)&0x03]

		{name: "RLWINM", argLength: 1, reg: gp11, asm: "RLWNM", aux: "Int64"},                           // Rotate and mask by immediate "rlwinm". encodePPC64RotateMask describes aux
		{name: "RLWNM", argLength: 2, reg: gp21, asm: "RLWNM", aux: "Int64"},                            // Rotate and mask by "rlwnm". encodePPC64RotateMask describes aux

	if sys.Setctty {
		_, _, err1 = RawSyscall(SYS_IOCTL, uintptr(sys.Ctty), uintptr(TIOCSCTTY), 1)
		if err1 != 0 {
			goto childerror
		}
	}

	// Restore original rlimit.
	if rlim != nil {
		rawSetrlimit(RLIMIT_NOFILE, rlim)
	}

	// Enable tracing if requested.
	// Do this right before exec so that we don't unnecessarily trace the runtime
	// setting up after the fork. See issue #21428.
	if sys.Ptrace {