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Microsoft Specific

Generates the rep outsb instruction,which sends the first Count bytes of data pointed to by Buffer to the port specified by Port.

void __outbytestring( 
   unsigned short Port, 
   unsigned char* Buffer, 
   unsigned long Count 


[in] Port

The port to send the data to.

[in] Buffer

The data to be sent out the specified port.

[in] Count

The number of bytes of data to be sent.

Intrinsic Architecture


x86, x64

Header file <intrin.h>

This routine is only available as an intrinsic.

END Microsoft Specific

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