# _xsusldtrk

## Synopsis

    void _xsusldtrk ()

Type | Value
--- | ---
Header file | `#include <immintrin.h>`
Instruction | `XSUSLDTRK`
CPUID flags | `TSXLDTRK`

## Description

Mark the start of a TSX (HLE/RTM) suspend load address tracking region. If this is used inside a transactional region, subsequent loads are not added to the read set of the transaction. If this is used inside a suspend load address tracking region it will cause transaction abort. If this is used outside of a transactional region it behaves like a NOP.

## Technology

Other

## Category

Miscellaneous

Parent topic: TSXLDTRK