You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: defs_windows_arm64.go
    path of file: ./repos/gccrs/libgo/go/runtime
    
    the code of the file until where you have to start completion: // Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package runtime

// NOTE(rsc): _CONTEXT_CONTROL is actually 0x400001 and should include PC, SP, and LR.
// However, empirically, LR doesn't come along on Windows 10
// unless you also set _CONTEXT_INTEGER (0x400002).
// Without LR, we skip over the next-to-bottom function in profiles
// when the bottom function is frameless.
// So we set both here, to make a working _CONTEXT_CONTROL.
const _CONT
    
func dumpregs(r *context) {
	print("r0   ", hex(r.x[0]), "\n")
	print("r1   ", hex(r.x[1]), "\n")
	print("r2   ", hex(r.x[2]), "\n")
	print("r3   ", hex(r.x[3]), "\n")
	print("r4   ", hex(r.x[4]), "\n")
	print("r5   ", hex(r.x[5]), "\n")
	print("r6   ", hex(r.x[6]), "\n")
	print("r7   ", hex(r.x[7]), "\n")
	print("r8   ", hex(r.x[8]), "\n")
	print("r9   ", hex(r.x[9]), "\n")
	print("r10  ", hex(r.x[10]), "\n")
	print("r11  ", hex(r.x[11]), "\n")
	print("r12  ", hex(r.x[12]), "\n")
	print("r13  ", hex(r.x[13]), "\n")
	print("r14  ", hex(r.x[14]), "\n")
	print("r15  ", hex(r.x[15]), "\n")
	print("r16  ", hex(r.x[16]), "\n")
	print("r17  ", hex(r.x[17]), "\n")
	print("r18  ", hex(r.x[18]), "\n")
	print("r19  ", hex(r.x[19]), "\n")
	print("r20  ", hex(r.x[20]), "\n")
	print("r21  ", hex(r.x[21]), "\n")
	print("r22  ", hex(r.x[22]), "\n")
	print("r23  ", hex(r.x[23]), "\n")
	print("r24  ", hex(r.x[24]), "\n")
	print("r25  ", hex(r.x[25]), "\n")
	print("r26  ", hex(r.x[26]), "\n")
	print("r27  ", hex(r.x[27]), "\n")
	print("r28  ", hex(r.x[28]), "\n")
	print("r29  ", hex(r.x[29]), "\n")
	print("lr   ", hex(r.x[30]), "\n")
	print("sp   ", hex(r.xsp), "\n")
	print("pc   ", hex(r.pc), "\n")
	print("cpsr ", hex(r.cpsr), "\n")
}