procem_default 0.1.0

A default implementation of an instruction set for the procem library
Documentation 
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use core::ops::Deref;

use procem::{processor::Processor, register::Register, word::Word};

use crate::instruction::Instruction;

/// Operand for the instruction set.
#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub enum Operand<W> {
    Register(Register),
    Value(W),
}

impl<W: Word> Operand<W> {
    /// Resolve the operand to a value.
    #[inline]
    pub(crate) const fn resolve<const STACK_SIZE: usize, P>(
        self,
        processor: &Processor<STACK_SIZE, Instruction<W>, P, W>,
    ) -> W
    where
        P: Deref<Target = [Instruction<W>]>,
    {
        match self {
            Self::Register(reg) => processor.registers.get_reg(reg),
            Self::Value(val) => val,
        }
    }
}