vfwsub.vv

Vector floating-point widening subtraction

This instruction is defined by:

Encoding

svg

Synopsis

Performs floating-point subtraction on elements from vector registers vs2 and vs1, widens the results, and stores them in vector register vd, using vector mask vm. The operation follows IEEE 754 floating-point arithmetic rules.

Access

M HS U VS VU

Always

Always

Always

Always

Always

Decode Variables

Bits<1> vm = $encoding[25];
Bits<5> vs2 = $encoding[24:20];
Bits<5> vs1 = $encoding[19:15];
Bits<5> vd = $encoding[11:7];

Execution

  • Pruned, XLEN == 64

  • Original