| title | __movsb | Microsoft Docs | |||||||||
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| ms.date | 11/04/2016 | |||||||||
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| ms.assetid | ba5469f6-f797-4cd2-bee8-74c7666c26d4 | |||||||||
| caps.latest.revision | 15 | |||||||||
| author | corob-msft | |||||||||
| ms.author | corob | |||||||||
| manager | ghogen | |||||||||
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Microsoft Specific
Generates a Move String (rep movsb) instruction.
void __movsb(
unsigned char* Destination,
unsigned const char* Source,
size_t Count
);
[out] Destination
A pointer to the destination of the copy.
[in] Source
A pointer to the source of the copy.
[in] Count
The number of bytes to copy.
| Intrinsic | Architecture |
|---|---|
__movsb |
x86, [!INCLUDEvcprx64] |
Header file <intrin.h>
The result is that the first Count bytes pointed to by Source are copied to the Destination string.
This routine is only available as an intrinsic.
// movsb.cpp
// processor: x86, x64
#include <stdio.h>
#include <intrin.h>
#pragma intrinsic(__movsb)
int main()
{
unsigned char s1[100];
unsigned char s2[100] = "A big black dog.";
__movsb(s1, s2, 100);
printf_s("%s %s", s1, s2);
}
A big black dog. A big black dog.
END Microsoft Specific