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/********************************************************/
/* ntapi: Native API core library */
/* Copyright (C) 2013--2017 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
/********************************************************/
#include <psxtypes/psxtypes.h>
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;
}
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