Method read_doubleword

crates/virtual-machine/src/memory/rom.rs:70–74

(&mut self, addr: u64)

    fn read_doubleword(&mut self, addr: u64) -> Result<u64, VmError> {
        let lo = self.read_word(addr)? as u64;
        let hi = self.read_word(addr + 4)? as u64;
        Ok(lo | (hi << 32))
    }

    fn write_byte(&mut self, _addr: u64, _data: u8) -> Result<(), VmError> {
        Err(VmError::WriteToRom)
    }