remove rust module

src/register/fcsr.rs

@@ -1,134 +0,0 @@
-//! Floating-point control and status register
-
-/// Floating-point control and status register
-#[derive(Clone, Copy, Debug)]
-pub struct FCSR {
-    bits: u32,
-}
-
-/// Accrued Exception Flags
-#[derive(Clone, Copy, Debug)]
-pub struct Flags(u32);
-
-/// Accrued Exception Flag
-#[derive(Clone, Copy, Debug)]
-pub enum Flag {
-    /// Inexact
-    NX = 0b00001,
-
-    /// Underflow
-    UF = 0b00010,
-
-    /// Overflow
-    OF = 0b00100,
-
-    /// Divide by Zero
-    DZ = 0b01000,
-
-    /// Invalid Operation
-    NV = 0b10000,
-}
-
-impl Flags {
-    /// Inexact
-    #[inline]
-    pub fn nx(&self) -> bool {
-        self.0 & (1 << 0) != 0
-    }
-
-    /// Underflow
-    #[inline]
-    pub fn uf(&self) -> bool {
-        self.0 & (1 << 1) != 0
-    }
-
-    /// Overflow
-    #[inline]
-    pub fn of(&self) -> bool {
-        self.0 & (1 << 2) != 0
-    }
-
-    /// Divide by Zero
-    #[inline]
-    pub fn dz(&self) -> bool {
-        self.0 & (1 << 3) != 0
-    }
-
-    /// Invalid Operation
-    #[inline]
-    pub fn nv(&self) -> bool {
-        self.0 & (1 << 4) != 0
-    }
-}
-
-/// Rounding Mode
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub enum RoundingMode {
-    RoundToNearestEven = 0b000,
-    RoundTowardsZero = 0b001,
-    RoundDown = 0b010,
-    RoundUp = 0b011,
-    RoundToNearestMaxMagnitude = 0b100,
-    Invalid = 0b111,
-}
-
-impl FCSR {
-    /// Returns the contents of the register as raw bits
-    #[inline]
-    pub fn bits(&self) -> u32 {
-        self.bits
-    }
-
-    /// Accrued Exception Flags
-    #[inline]
-    pub fn fflags(&self) -> Flags {
-        Flags(self.bits & 0x1F) // bits 0-4
-    }
-
-    /// Rounding Mode
-    #[inline]
-    pub fn frm(&self) -> RoundingMode {
-        let frm = (self.bits >> 5) & 0x7; // bits 5-7
-        match frm {
-            0b000 => RoundingMode::RoundToNearestEven,
-            0b001 => RoundingMode::RoundTowardsZero,
-            0b010 => RoundingMode::RoundDown,
-            0b011 => RoundingMode::RoundUp,
-            0b100 => RoundingMode::RoundToNearestMaxMagnitude,
-            _ => RoundingMode::Invalid,
-        }
-    }
-}
-
-read_csr!(0x003);
-write_csr!(0x003);
-clear!(0x003);
-
-/// Reads the CSR
-#[inline]
-pub fn read() -> FCSR {
-    FCSR {
-        bits: unsafe { _read() as u32 },
-    }
-}
-
-/// Writes the CSR
-#[inline]
-pub unsafe fn set_rounding_mode(frm: RoundingMode) {
-    let old = read();
-    let bits = ((frm as u32) << 5) | old.fflags().0;
-    _write(bits as usize);
-}
-
-/// Resets `fflags` field bits
-#[inline]
-pub unsafe fn clear_flags() {
-    let mask = 0b11111;
-    _clear(mask);
-}
-
-/// Resets `fflags` field bit
-#[inline]
-pub unsafe fn clear_flag(flag: Flag) {
-    _clear(flag as usize);
-}