#[allow(unused)] pub const USER_STACK_SIZE: usize = 4096 * 2; pub const KERNEL_STACK_SIZE: usize = 4096 * 2; pub const KERNEL_HEAP_SIZE: usize = 0x100_0000; pub const MEMORY_END: usize = 0x88000000; pub const PAGE_SIZE: usize = 0x1000; pub const PAGE_SIZE_BITS: usize = 0xc; pub const TRAMPOLINE: usize = usize::MAX - PAGE_SIZE + 1; pub const TRAP_CONTEXT_BASE: usize = TRAMPOLINE - PAGE_SIZE; pub use crate::board::{CLOCK_FREQ, MMIO};