pub fn frflags() -> u32
🔬This is a nightly-only experimental API. (
stdsimd
#27731)Available on RISC-V RV64 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.
According to “F” Standard Extension for Single-Precision Floating-Point, Version 2.2, the accrued 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 |