RISC-V ISA Explorer · Vector Subsets (Zv/Zve)
Zvfbfwma: Vector BF16 Widening MAC
Ratified 2024-06 · version 1.0.0
Widening multiply-add over BF16 vector elements accumulating into FP32, the inner loop of BF16 matrix math.
Typical use: BF16 GEMM-style MAC
Open Zvfbfwma in the explorerDependencies
Requires
Instructions (2)
| Mnemonic | Name | Encoding | Match | Mask |
|---|---|---|---|---|
VFWMACCBF16.VF | Vector widening BFloat16 multiply-accumulate with scalar | 111011-----------101-----1010111 | 0xec005057 | 0xfc00707f |
VFWMACCBF16.VV | Vector widening BFloat16 multiply-accumulate | 111011-----------001-----1010111 | 0xec001057 | 0xfc00707f |