/********************************************************/

/*  ntapi: Native API core library                      */

/*  Copyright (C) 2013--2021  SysDeer Technologies, LLC */

/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */

/********************************************************/

#include <psxtypes/psxtypes.h>

__attr_protected__

wchar16_t * __cdecl __ntapi_tt_aligned_memcpy_utf16(

	__in	uintptr_t *	dst,

	__in	uintptr_t *	src,

	__in	size_t		bytes)

{

	size_t 		aligned_block;

	size_t		copied;

	wchar16_t *	wch_src;

	wchar16_t *	wch_dst;

	#if defined (__X86_64_MODEL)

	uint32_t *	uint32_src;

	uint32_t *	uint32_dst;

	#endif

	aligned_block = bytes;

	aligned_block /= sizeof(uintptr_t);

	aligned_block *= sizeof(uintptr_t);

	copied = 0;

	while (copied < aligned_block) {

		*dst = *src;

		src++;

		dst++;

		copied += sizeof(uintptr_t);

	}

	#if defined (__X86_64_MODEL)

		switch (bytes % sizeof(uintptr_t)) {

			case 6:

				uint32_src = (uint32_t *)src;

				uint32_dst = (uint32_t *)dst;

				*uint32_dst = *uint32_src;

				uint32_src++;

				uint32_dst++;

				/* make the compiler happy */

				wch_src = (wchar16_t *)uint32_src;

				wch_dst = (wchar16_t *)uint32_dst;

				*wch_dst = *wch_src;

				break;

			case 4:

				uint32_src = (uint32_t *)src;

				uint32_dst = (uint32_t *)dst;

				*uint32_dst = *uint32_src;

				break;

		}

	#endif

	if (bytes % sizeof(uintptr_t)) {

		/* the remainder must be 2 */

		wch_src = (wchar16_t *)src;

		wch_dst = (wchar16_t *)dst;

		*wch_dst = *wch_src;

	}

	return (wchar16_t *)dst;

}