remove unused "mask" code

crsn/src/asm/data/mask.rs

@@ -1,65 +0,0 @@
-//! Mask applied to a data source or destination
-
-use crate::asm::error::AsmError;
-
-/// Bit mask to apply to a value
-#[derive(Debug, Clone, Copy, Eq, PartialEq)]
-pub struct Mask {
-    /// Length of the selected bit slice
-    len: u8,
-    /// Offset of the selected bit slice from bit zero
-    offset: u8,
-}
-
-impl Default for Mask {
-    fn default() -> Self {
-        Mask {
-            len: 64,
-            offset: 0,
-        }
-    }
-}
-
-impl Mask {
-    pub const BYTE: Mask = Mask {
-        len: 8,
-        offset: 0,
-    };
-    pub const HALF_WORD: Mask = Mask {
-        len: 16,
-        offset: 0,
-    };
-    pub const WORD: Mask = Mask {
-        len: 32,
-        offset: 0,
-    };
-    pub const DOUBLE_WORD: Mask = Mask {
-        len: 64,
-        offset: 0,
-    };
-    pub const FULL: Mask = Self::DOUBLE_WORD;
-
-    pub fn new(len: u8, offset: u8) -> Result<Self, AsmError> {
-        if len == 0 || offset >= 64 {
-            // create the invalid mask to display it in the error
-            return Err(AsmError::BadMask(Mask {
-                len,
-                offset,
-            }));
-        }
-
-        Ok(Self {
-            len: len.min(64 - offset),
-            offset,
-        })
-    }
-
-    /// Get a binary mask representing the span
-    pub fn as_bitmask(self) -> u64 {
-        ((1 << self.len) - 1) << self.offset
-    }
-
-    pub fn is_default(self) -> bool {
-        self == Self::default()
-    }
-}

crsn/src/asm/data/mod.rs

@@ -2,7 +2,6 @@ use std::convert::TryFrom;
 use std::fmt::{Debug, Display, Formatter};
 use std::fmt;
 
-pub use mask::Mask;
 pub use rd::Rd;
 pub use rd::RdObj;
 pub use reg::Register;
@@ -14,7 +13,6 @@ use super::error::AsmError;
 
 pub mod literal;
 pub mod reg;
-pub mod mask;
 
 mod rd;
 

crsn/src/asm/data/rd.rs

@@ -1,28 +1,22 @@
 use std::fmt::{Debug, Display, Formatter};
 use std::fmt;
 
-use crate::asm::data::{DataDisp, Mask, RdData, Register};
+use crate::asm::data::{RdData, Register};
 use crate::asm::data::literal::Value;
 
 /// Data source argument (read-only)
 #[derive(Clone, Copy, Eq, PartialEq)]
-pub struct Rd(pub RdData, pub Mask);
+pub struct Rd(pub RdData);
 
 impl Rd {
     pub const fn new(src: RdData) -> Self {
-        Rd(src, Mask::FULL)
+        Rd(src)
     }
-
     pub const fn data(self) -> RdData {
         self.0
     }
-
-    pub const fn mask(self) -> Mask {
-        self.1
-    }
-
     pub const fn immediate(val: Value) -> Rd {
-        Rd(RdData::Immediate(val), Mask::FULL)
+        Rd(RdData::Immediate(val))
     }
 }
 
@@ -34,13 +28,7 @@ impl Display for Rd {
 
 impl Debug for Rd {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "Rd(")?;
-        let disp: DataDisp = self.0.into();
-        write!(f, "{}", disp)?;
-        if !self.mask().is_default() {
-            write!(f, ",{:?}", self.mask())?;
-        }
-        write!(f, ")")
+        write!(f, "Rd({})", self.0)
     }
 }
 
@@ -66,8 +54,6 @@ impl Display for RdObj {
 
 impl Debug for RdObj {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "Obj(")?;
-        write!(f, "{}", self.reg())?;
-        write!(f, ")")
+        write!(f, "Obj({})", self.reg())
     }
 }

crsn/src/asm/data/wr.rs

@@ -1,28 +1,25 @@
 use std::fmt::{Debug, Display, Formatter};
 use std::fmt;
 
-use crate::asm::data::{DataDisp, Mask, Rd, WrData};
+use crate::asm::data::{Rd, WrData};
 
 /// Data destination argument (read-write)
 #[derive(Clone, Copy, Eq, PartialEq)]
-pub struct Wr(WrData, Mask);
+pub struct Wr(WrData);
 
 impl Wr {
     pub fn new(dst: WrData) -> Self {
-        Wr(dst, Mask::default())
+        Wr(dst)
     }
     pub fn d(self) -> WrData {
         self.0
     }
-    pub fn mask(self) -> Mask {
-        self.1
-    }
     pub fn as_rd(self) -> Rd {
-        Rd(self.0.into(), self.1)
+        Rd(self.0.into())
     }
 
     pub fn discard() -> Wr {
-        Wr(WrData::Discard, Mask::default())
+        Wr(WrData::Discard)
     }
 
     pub fn is_discard(self) -> bool {
@@ -35,18 +32,12 @@ impl Wr {
 
 impl Display for Wr {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "{}", self.0) // TODO mask, when implemented
+        write!(f, "{}", self.0)
     }
 }
 
 impl Debug for Wr {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
-        write!(f, "Wr(")?;
-        let disp: DataDisp = self.0.into();
-        write!(f, "{}", disp)?;
-        if !self.mask().is_default() {
-            write!(f, ",{:?}", self.mask())?;
-        }
-        write!(f, ")")
+        write!(f, "Wr({})", self.0)
     }
 }

crsn/src/asm/error.rs

@@ -5,7 +5,7 @@ use thiserror::Error;
 
 use sexp::SourcePosition;
 
-use crate::asm::data::{Mask, Register};
+use crate::asm::data::{Register};
 use crate::asm::data::literal::Label;
 use crate::asm::instr::Cond;
 
@@ -27,10 +27,6 @@ pub enum CrsnError {
 pub enum AsmError {
     #[error("Unknown instruction")]
     UnknownInstruction,
-    #[error("Bad bit mask")]
-    BadMask(Mask),
-    #[error("Uneven operand size")]
-    UnevenOperandSize(Mask, Mask),
     #[error("Value provided as output argument")]
     ValueAsOutput,
     #[error("Discard (_) provided as input argument")]

crsn/src/asm/parse/arg_parser.rs

@@ -1,6 +1,6 @@
 use sexp::{Sexp, SourcePosition};
 
-use crate::asm::data::{Mask, Rd, RdData, RdObj, Wr};
+use crate::asm::data::{Rd, RdData, RdObj, Wr};
 use crate::asm::error::CrsnError;
 use crate::asm::parse::parse_data::{parse_rd, parse_wr};
 use crate::asm::parse::ParserContext;
@@ -93,7 +93,7 @@ impl<'a> TokenParser<'a> {
     /// Get the next entry as an object location
     pub fn next_rdobj(&mut self) -> Result<RdObj, CrsnError> {
         match parse_rd(self.next_or_err()?, self.pcx)? {
-            Rd(RdData::RegObject(reg), Mask::FULL) => {
+            Rd(RdData::RegObject(reg)) => {
                 Ok(RdObj::new(reg))
             }
             other => {

crsn/src/module/mod.rs

@@ -6,7 +6,6 @@ pub use eval_res::EvalRes;
 use sexp::{Sexp, SourcePosition};
 
 use crate::asm::data::literal::Value;
-use crate::asm::data::Mask;
 use crate::asm::error::CrsnError;
 use crate::asm::instr::Flatten;
 use crate::asm::instr::op::OpKind;
@@ -107,7 +106,7 @@ pub trait CrsnExtension: Debug + Send + Sync + 'static {
     }
 
     /// Run-time method called to read an object (using the object handle syntax)
-    fn read_obj(&self, state: &mut RunState, handle: Value, _mask: Mask)
+    fn read_obj(&self, state: &mut RunState, handle: Value)
                 -> Result<Option<Value>, Fault>
     {
         // Default impl - we do not support reading this object
@@ -115,7 +114,7 @@ pub trait CrsnExtension: Debug + Send + Sync + 'static {
     }
 
     /// Run-time method called to write an object (using the object handle syntax)
-    fn write_obj(&self, state: &mut RunState, handle: Value, _mask: Mask, value: Value) -> Result<Option<()>, Fault>
+    fn write_obj(&self, state: &mut RunState, handle: Value, value: Value) -> Result<Option<()>, Fault>
     {
         // Default impl - we do not support writing this object
         Ok(None)

crsn/src/runtime/run_thread/state.rs

@@ -1,7 +1,7 @@
 use std::any::{Any, TypeId};
 use std::collections::HashMap;
 
-use crate::asm::data::{Rd, RdData, RdObj, Register, Wr, WrData, Mask};
+use crate::asm::data::{Rd, RdData, RdObj, Register, Wr, WrData};
 use crate::asm::data::literal::{Addr, Value};
 use crate::asm::instr::Cond;
 use crate::runtime::fault::Fault;
@@ -122,22 +122,22 @@ impl RunState {
             }
             RdData::RegObject(register) => {
                 let reference = self.read(Rd::new(RdData::Register(register)))?;
-                self.read_object(reference, rd.mask())
+                self.read_object(reference)
             }
             RdData::ImmObject(reference) => {
-                self.read_object(reference, rd.mask())
+                self.read_object(reference)
             }
         }
     }
 
-    fn read_object(&mut self, reference: Value, mask: Mask) -> Result<Value, Fault> {
+    fn read_object(&mut self, reference: Value) -> Result<Value, Fault> {
         // This is a shitty dirty hack to allow iterating over the extensions while passing a mutable reference
         // to self to the reading methods. Since the extensions array is in an Arc, it can't be mutated internally
         // anyway, and we know it will still live after the method returns - unless someone does something incredibly stupid.
         let ti: &ThreadInfo = unsafe { &*(self.thread_info.as_ref() as *const _) }; // If this fails, just clone the arc for the loop...
 
         for ext in ti.extensions.iter() {
-            if let Some(value) = ext.read_obj(self, reference, mask)? {
+            if let Some(value) = ext.read_obj(self, reference)? {
                 return Ok(value);
             }
         }
@@ -145,14 +145,14 @@ impl RunState {
         Err(Fault::ObjectNotExist(reference))
     }
 
-    fn write_object(&mut self, reference: Value, mask: Mask, value: Value) -> Result<(), Fault> {
+    fn write_object(&mut self, reference: Value, value: Value) -> Result<(), Fault> {
         // This is a shitty dirty hack to allow iterating over the extensions while passing a mutable reference
         // to self to the reading methods. Since the extensions array is in an Arc, it can't be mutated internally
         // anyway, and we know it will still live after the method returns - unless someone does something incredibly stupid.
         let ti: &ThreadInfo = unsafe { &*(self.thread_info.as_ref() as *const _) }; // If this fails, just clone the arc for the loop...
 
         for ext in ti.extensions.iter() {
-            if ext.write_obj(self, reference, mask, value)?.is_some() {
+            if ext.write_obj(self, reference, value)?.is_some() {
                 return Ok(());
             }
         }
@@ -193,10 +193,10 @@ impl RunState {
             }
             WrData::RegObject(register) => {
                 let reference = self.read(Rd::new(RdData::Register(register)))?;
-                self.write_object(reference, wr.mask(), val)
+                self.write_object(reference, val)
             }
             WrData::ImmObject(reference) => {
-                self.write_object(reference, wr.mask(), val)
+                self.write_object(reference, val)
             }
         }
     }

crsn_stdio/src/lib.rs

@@ -6,7 +6,6 @@ use crsn::module::{CrsnExtension, ParseRes, CrsnUniq};
 use crsn::runtime::fault::Fault;
 use crsn::runtime::run_thread::{RunState};
 use crsn::sexp::SourcePosition;
-use crsn::asm::data::Mask;
 use std::io::{Write};
 use std::convert::TryFrom;
 use crsn::asm::instr::Cond;
@@ -66,7 +65,7 @@ impl CrsnExtension for StdioOps {
     }
 
     /// Run-time method called to read an object (using the object handle syntax)
-    fn read_obj(&self, state: &mut RunState, handle: Value, _mask: Mask)
+    fn read_obj(&self, state: &mut RunState, handle: Value)
                 -> Result<Option<Value>, Fault>
     {
         if handle == self.hdl_stdin {
@@ -82,7 +81,7 @@ impl CrsnExtension for StdioOps {
     }
 
     /// Run-time method called to write an object (using the object handle syntax)
-    fn write_obj(&self, state: &mut RunState, handle: Value, _mask: Mask, value: Value) -> Result<Option<()>, Fault>
+    fn write_obj(&self, state: &mut RunState, handle: Value, value: Value) -> Result<Option<()>, Fault>
     {
         state.clear_status();