pub fn frflags() -> u32🔬This is a nightly-only experimental API. (
stdsimd #48556)Available on RISC-V RV32 only.
Expand description
Reads the floating-point accrued exception flags register fflags
The accrued exception flags indicate the exception conditions that have arisen on any floating-point arithmetic instruction since the field was last reset by software.
Accoding to “F” Standard Extension for Single-Precision Floating-Point, Version 2.2, the accured exception flags is defined as a bit vector of 5 bits. The meaning of each binary bit is listed in the table below.
| Bit index | Mnemonic | Meaning |
|---|---|---|
| 4 | NV | Invalid Operation |
| 3 | DZ | Divide by Zero |
| 2 | OF | Overflow |
| 1 | UF | Underflow |
| 0 | NX | Inexact |