vwsub.vx

Vector widening signed subtraction with scalar

Performs signed subtraction on elements from vector register vs2 and scalar register xs1, widens the results, and stores them in vector register vd, using vector mask vm. The operation follows standard signed arithmetic rules.

This instruction must have data-independent timing when extension Zkt is enabled.

Assembly format

vwsub.vx vd, vs2, xs1, vm

Decode Variables

Bits<1> vm = $encoding[25];
Bits<5> vs2 = $encoding[24:20];
Bits<5> xs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];

Execution

Encoding

svg

Defining extension

Access

M

Always

Containing profiles

  • Mandatory: None

  • Optional: None