Enum Instruction

pub enum Instruction {
    Nop,
    Push(Value),
    Drop,
    Clone,
    Call(usize),
    SetMp(isize),
    RelToAddr(isize),
    Ret,
    Exit,
    Jmp(usize),
    JmpFalse(usize),
    SetVarImm(Pointer),
    SetVar,
    GetVar,
    Cast(Type),
    Neg,
    Not,
    Add,
    Sub,
    Mul,
    Pow,
    Div,
    Rem,
    Eq,
    Ne,
    Lt,
    Gt,
    Le,
    Ge,
    Shl,
    Shr,
    BitOr,
    BitAnd,
    BitXor,
}

Variants

Nop

Does nothing.

Push(Value)

Adds a new constant to stack.

Drop

Pops the top-most value off the stack and discards the value.

Clone

Clones the top value on the stack: […, top] -> […, top, top].

Call(usize)

Calls a function (specified by index).

SetMp(isize)

Adjusts the memory pointer by the given offset.

RelToAddr(isize)

Pushes a pointer which points to the absolute address of the given relative offset.

Ret

Returns from the current function call.

Exit

Special instruction for exit calls.

Jmp(usize)

Jumps to the specified index.

JmpFalse(usize)

Jumps to the specified index if the value on the stack is false.

SetVarImm(Pointer)

Pops the top of the stack in order to use it as the variable’s value. Saves this value at the specified memory location.

SetVar

Pops the top value from the stack in order to use it as the variable’s value. Then pops the second value from the stack which is a pointer. Saves this value at the memory location specified by the pointer.

GetVar

Pops the top value from the stack because it is a pointer specifying the target memory address. The value saved at this address is then loaded and pushed onto the stack.

Cast(Type)

Cast the current item on the stack to the specified type.

Neg

Not

Add

Sub

Mul

Pow

Div

Rem

Eq

Ne

Lt

Gt

Le

Ge

Shl

Shr

BitOr

BitAnd

BitXor

Trait Implementations

impl Debug for Instruction

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

Formats the value using the given formatter.

impl Display for Instruction

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

Formats the value using the given formatter.

impl From<InfixOp> for Instruction

fn from(src: InfixOp) -> Self

Converts to this type from the input type.

impl TryFrom<AssignOp> for Instruction

type Error = ()

The type returned in the event of a conversion error.

fn try_from(src: AssignOp) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<PrefixOp> for Instruction

type Error = ()

The type returned in the event of a conversion error.

fn try_from(src: PrefixOp) -> Result<Self, Self::Error>

Performs the conversion.