Function load_fp

crates/virtual-machine/src/cpu/pipeline/memory.rs:309–327

(bus: &mut SystemBus, addr: u64, funct3: u8)

        2 => {
            // FSW: lower 32 bits
            bus.write_word(addr, bits as u32)
                .map_err(|_| VmError::StoreAccessFault(addr))
        }
        3 => {
            // FSD
            bus.write_doubleword(addr, bits)
                .map_err(|_| VmError::StoreAccessFault(addr))
        }
        _ => Err(VmError::StoreAccessFault(addr)),
    }
}

// --- Atomics ---

fn handle_atomic(
    bus: &mut SystemBus,
    reservation: &mut Option<u64>,
    funct5: u8,
    funct3: u8,
    rd: usize,
    addr: u64,
    val: u64,