pub fn frrm() -> u32
🔬This is a nightly-only experimental API. (
stdsimd
#48556)Available on RISC-V RV32 only.
Expand description
读取浮点舍入模式的寄存器 frm
根据 “F” 单精度浮点标准扩展,版本 2.2,舍入模式字段定义如下表所示:
Rounding Mode | Mnemonic | Meaning |
---|---|---|
000 | RNE | Round to Nearest, ties to Even |
001 | RTZ | Round towards Zero |
010 | RDN | Round Down (towards −∞) |
011 | RUP | Round Up (towards +∞) |
100 | RMM | Round to Nearest, ties to Max Magnitude |
101 | Reserved for future use. | |
110 | Reserved for future use. | |
111 | DYN | In Rounding Mode register, reserved. |