From cdf6a33665caffb2a10ee889087caf8f5ef93b80 Mon Sep 17 00:00:00 2001 From: Ales Katona Date: Sat, 31 Aug 2019 16:10:56 -0600 Subject: [PATCH] remove XS and FS from ustatus --- src/register/ustatus.rs | 39 --------------------------------------- 1 file changed, 39 deletions(-) diff --git a/src/register/ustatus.rs b/src/register/ustatus.rs index d450611..81890ba 100644 --- a/src/register/ustatus.rs +++ b/src/register/ustatus.rs @@ -2,8 +2,6 @@ // TODO: Virtualization, Memory Privilege and Extension Context Fields use bit_field::BitField; -use core::mem::size_of; -pub use super::mstatus::{XS, FS}; /// ustatus register #[derive(Clone, Copy, Debug)] @@ -23,45 +21,8 @@ impl Ustatus { pub fn upie(&self) -> bool { self.bits.get_bit(4) } - - /// Floating-point extension state - /// - /// Encodes the status of the floating-point unit, - /// including the CSR `fcsr` and floating-point data registers `f0–f31`. - #[inline] - pub fn fs(&self) -> FS { - match self.bits.get_bits(13..15) { - 0b00 => FS::Off, - 0b01 => FS::Initial, - 0b10 => FS::Clean, - 0b11 => FS::Dirty, - _ => unreachable!(), - } - } - - /// Additional extension state - /// - /// Encodes the status of additional user-mode extensions and associated state. - #[inline] - pub fn xs(&self) -> XS { - match self.bits.get_bits(15..17) { - 0b00 => XS::AllOff, - 0b01 => XS::NoneDirtyOrClean, - 0b10 => XS::NoneDirtySomeClean, - 0b11 => XS::SomeDirty, - _ => unreachable!(), - } - } - - /// Whether either the FS field or XS field - /// signals the presence of some dirty state - #[inline] - pub fn sd(&self) -> bool { - self.bits.get_bit(size_of::() * 8 - 1) - } } - read_csr_as!(Ustatus, 0x000, __read_ustatus); write_csr!(0x000, __write_ustatus); set!(0x000, __set_ustatus);