SUBU	R6, R26, R27	// 0346d823
	SUBV	R16, R17, R26	// 0230d02e
	SUBVU	R16, R17, R26	// 0230d02f

//	LSUBW imm ',' sreg ',' rreg
//	{
//		outcode(int($1), &$2, int($4), &$6);
//	}
	SUB	$-3126, R17, R22	// 22360c36
	SUB	$3126, R17, R22		// 2236f3ca
	SUBU	$16384, R17, R12	// 262cc000
	SUBV	$-6122, R10, R9		// 614917ea
	SUBV	$6122, R10, R9		// 6149e816
	SUBVU	$1203, R17, R12		// 662cfb4d

//	LSUBW rreg ',' rreg
//	{

	{"32(SP)(BX*2)", "32(SP)(BX*2)"},
	{"32323(SP)(R8*4)", "32323(SP)(R8*4)"},
	{"+3(PC)", "3(PC)"},
	{"-1(DI)(BX*1)", "-1(DI)(BX*1)"},
	{"-3(PC)", "-3(PC)"},
	{"-64(SI)(BX*1)", "-64(SI)(BX*1)"},
	{"-96(SI)(BX*1)", "-96(SI)(BX*1)"},
	{"AL", "AL"},
	{"AX", "AX"},
	{"BP", "BP"},
	{"BX", "BX"},
	{"CX", "CX"},
	{"DI", "DI"},
	{"DX", "DX"},
	{"R10", "R10"},
	{"R10", "R10"},
	{"R11", "R11"},

	// the base register of shift operations must be general register.
	if reg > arm64.REG_R31 || reg < arm64.REG_R0 {
		return 0, errors.New("invalid register for shift operation")
	}
	return int64(reg&31)<<16 | int64(op)<<22 | int64(uint16(count)), nil
}

// ARM64RegisterExtension constructs an ARM64 register with extension or arrangement.

	KORQ K0, K7, K5       // c4e1c445e8
	KSHIFTLB $0, K7, K0   // c4e37932c700
	KSHIFTLB $196, K1, K5 // c4e37932e9c4
	KSHIFTLW $0, K7, K0   // c4e3f932c700
	KSHIFTLW $196, K1, K5 // c4e3f932e9c4
	KSHIFTLD $0, K7, K0   // c4e37933c700
	KSHIFTLD $196, K1, K5 // c4e37933e9c4
	KSHIFTLQ $0, K7, K0   // c4e3f933c700
	KSHIFTLQ $196, K1, K5 // c4e3f933e9c4
	// EVEX: masking with K1-K7.
	VADDPD X2, X1, K1, X0            // 62f1f50958c2

	// 'Gjnf oevyyvt naq gur fyvgul tbcure...
}

func ExampleReader_Len() {
	fmt.Println(bytes.NewReader([]byte("Hi!")).Len())
	fmt.Println(bytes.NewReader([]byte("こんにちは!")).Len())
	// Output:
	// 3
	// 16
}

func ExampleRepeat() {
	fmt.Printf("ba%s", bytes.Repeat([]byte("na"), 2))
	// Output: banana
}

func ExampleReplace() {

pkg syscall (linux-arm), const SYS_LSETXATTR = 227
pkg syscall (linux-arm), const SYS_LSTAT = 107
pkg syscall (linux-arm), const SYS_LSTAT64 = 196
pkg syscall (linux-arm), const SYS_MADVISE = 220
pkg syscall (linux-arm), const SYS_MBIND = 319
pkg syscall (linux-arm), const SYS_MINCORE = 219
pkg syscall (linux-arm), const SYS_MKDIR = 39
pkg syscall (linux-arm), const SYS_MKDIRAT = 323

pkg syscall (freebsd-arm64), const DLT_RIO ideal-int
pkg syscall (freebsd-arm64), const DLT_SCCP = 142
pkg syscall (freebsd-arm64), const DLT_SCCP ideal-int
pkg syscall (freebsd-arm64), const DLT_SITA = 196
pkg syscall (freebsd-arm64), const DLT_SITA ideal-int
pkg syscall (freebsd-arm64), const DLT_SLIP = 8
pkg syscall (freebsd-arm64), const DLT_SLIP ideal-int
pkg syscall (freebsd-arm64), const DLT_SLIP_BSDOS = 15

pkg syscall (darwin-arm64), const SYS_ACCT ideal-int
pkg syscall (darwin-arm64), const SYS_ADJTIME = 140
pkg syscall (darwin-arm64), const SYS_ADJTIME ideal-int
pkg syscall (darwin-arm64), const SYS_AIO_CANCEL = 316
pkg syscall (darwin-arm64), const SYS_AIO_CANCEL ideal-int
pkg syscall (darwin-arm64), const SYS_AIO_ERROR = 317
pkg syscall (darwin-arm64), const SYS_AIO_ERROR ideal-int