src/devices/math.rs


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pub struct MathDevice {
    pub operand_1: u16,
    pub operand_2: u16,
}

impl MathDevice {
    pub fn new() -> Self {
        Self {
            operand_1: 0x0000,
            operand_2: 0x0000,
        }
    }

    pub fn multiply_high(&mut self) -> u16 {
        let (_, high) = self.operand_1.widening_mul(self.operand_2);
        return high;
    }

    pub fn multiply_low(&mut self) -> u16 {
        let (low, _) = self.operand_1.widening_mul(self.operand_2);
        return low;
    }

    pub fn divide(&mut self) -> u16 {
        self.operand_1.checked_div(self.operand_2).unwrap_or(0)
    }

    pub fn modulo(&mut self) -> u16 {
        self.operand_1.checked_rem(self.operand_2).unwrap_or(0)
    }
}