# HVX Revision history

HVX revision history

| **Revision** | **Date** | **Description** |
| --- | --- | --- |
| AA | December 2024 | <ul class="simple"><br><li><p>Permute resource now allows shift resource instructions (See <a href="https://docs.qualcomm.com/doc/80-N3040-23/topic/vector-instructions.html#v79-vliw-packing-rules"><span class="std std-ref">VLIW packing rules</span></a>)</p></li><br><li><p>Qfloat is now referred to as <a href="https://docs.qualcomm.com/doc/80-N3040-23/topic/hvx-floating-point.html#v79-hvx-floating-point"><span class="std std-ref">HVX floating point</span></a></p><br><ul><br><li><p>HVX floating point changed to achieve IEEE-754 compliance</p></li><br></ul><br></li><br><li><p>New multiply by scalar register HVX floating point instructions</p><br><ul><br><li><p>Vd.qf16=vmpy(Vu.hf,Rt.hf)</p></li><br><li><p>Vd.qf16=vmpy(Vu.qf16,Rt.hf)</p></li><br><li><p>Vd.qf32=vmpy(Vu.sf,Rt.sf)</p></li><br></ul><br></li><br><li><p>Updated <a href="https://docs.qualcomm.com/doc/80-N3040-23/topic/src_registers.html#v79-reversed-vector-pairs"><span class="std std-ref">reversed vector pair</span></a> wording</p></li><br><li><p>Added <a href="https://docs.qualcomm.com/doc/80-N3040-23/topic/hvx-instruction-set.html#v79-new-value-operands"><span class="std std-ref">Dot-new vector operations</span></a> description</p></li><br></ul> |

Last Published: Oct 06, 2026

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