Enum o1vm::interpreters::riscv32im::interpreter::IInstruction

pub enum IInstruction {
    LoadByte,
    LoadHalf,
    LoadWord,
    LoadByteUnsigned,
    LoadHalfUnsigned,
    ShiftLeftLogicalImmediate,
    ShiftRightLogicalImmediate,
    ShiftRightArithmeticImmediate,
    SetLessThanImmediate,
    SetLessThanImmediateUnsigned,
    AddImmediate,
    XorImmediate,
    OrImmediate,
    AndImmediate,
    JumpAndLinkRegister,
}

Variants

LoadByte

Format: lb rd, offset(rs1)

Description: Loads a 8-bit value from memory and sign-extends this to 32 bits before storing it in register rd.

LoadHalf

Format: lh rd, offset(rs1)

Description: Loads a 16-bit value from memory and sign-extends this to 32 bits before storing it in register rd.

LoadWord

Format: lw rd, offset(rs1)

Description: Loads a 32-bit value from memory and sign-extends this to 32 bits before storing it in register rd.

LoadByteUnsigned

Format: lbu rd, offset(rs1)

Description: Loads a 8-bit value from memory and zero-extends this to 32 bits before storing it in register rd.

LoadHalfUnsigned

Format: lhu rd, offset(rs1)

Description: Loads a 16-bit value from memory and zero-extends this to 32 bits before storing it in register rd.

ShiftLeftLogicalImmediate

Format: slli rd, rs1, shamt

Description: Performs logical left shift on the value in register rs1 by the shift amount held in the lower 5 bits of the immediate

ShiftRightLogicalImmediate

Format: srli rd, rs1, shamt

Description: Performs logical right shift on the value in register rs1 by the shift amount held in the lower 5 bits of the immediate

ShiftRightArithmeticImmediate

Format: srai rd, rs1, shamt

Description: Performs arithmetic right shift on the value in register rs1 by the shift amount held in the lower 5 bits of the immediate

SetLessThanImmediate

Format: slti rd, rs1, imm

Description: Place the value 1 in register rd if register rs1 is less than the signextended immediate when both are treated as signed numbers, else 0 is written to rd.

SetLessThanImmediateUnsigned

Format: sltiu rd, rs1, imm

Description: Place the value 1 in register rd if register rs1 is less than the immediate when both are treated as unsigned numbers, else 0 is written to rd.

AddImmediate

Format: addi rd, rs1, imm

Description: Adds the sign-extended 12-bit immediate to register rs1. Arithmetic overflow is ignored and the result is simply the low 32 bits of the result. ADDI rd, rs1, 0 is used to implement the MV rd, rs1 assembler pseudo-instruction.

XorImmediate

Format: xori rd, rs1, imm

Description: Performs bitwise XOR on register rs1 and the sign-extended 12-bit immediate and place the result in rd Note, “XORI rd, rs1, -1” performs a bitwise logical inversion of register rs1(assembler pseudo-instruction NOT rd, rs)

OrImmediate

Format: ori rd, rs1, imm

Description: Performs bitwise OR on register rs1 and the sign-extended 12-bit immediate and place the result in rd

AndImmediate

Format: andi rd, rs1, imm

Description: Performs bitwise AND on register rs1 and the sign-extended 12-bit immediate and place the result in rd

JumpAndLinkRegister

Format: jalr rd, rs1, imm

Description: Jump to address and place return address in rd.

Trait Implementations

impl Clone for IInstruction

fn clone(&self) -> IInstruction

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IInstruction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IInstruction

fn default() -> IInstruction

Returns the “default value” for a type.

impl Display for IInstruction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl EnumCount for IInstruction

const COUNT: usize = 15usize

impl Hash for IInstruction

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoEnumIterator for IInstruction

type Iterator = IInstructionIter

fn iter() -> IInstructionIter

impl Ord for IInstruction

fn cmp(&self, other: &IInstruction) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<IInstruction> for IInstruction

fn eq(&self, other: &IInstruction) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<IInstruction> for IInstruction

fn partial_cmp(&self, other: &IInstruction) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for IInstruction

impl Eq for IInstruction

impl StructuralEq for IInstruction

impl StructuralPartialEq for IInstruction