Function core::arch::riscv64::frflags

source ·
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 indexMnemonicMeaning
4NVInvalid Operation
3DZDivide by Zero
2OFOverflow
1UFUnderflow
0NXInexact
This documentation is an old archive. Please see https://rust.docs.kernel.org instead.