mirror of
https://github.com/logos-storage/plonky2.git
synced 2026-01-16 12:43:11 +00:00
96 lines
2.7 KiB
Rust
96 lines
2.7 KiB
Rust
use std::borrow::{Borrow, BorrowMut};
|
|
use std::mem::{size_of, transmute};
|
|
use std::ops::{Deref, DerefMut};
|
|
|
|
use crate::util::transmute_no_compile_time_size_checks;
|
|
|
|
/// Structure representing the flags for the various opcodes.
|
|
#[repr(C)]
|
|
#[derive(Clone, Copy, Eq, PartialEq, Debug)]
|
|
pub struct OpsColumnsView<T: Copy> {
|
|
/// Combines ADD, MUL, SUB, DIV, MOD, LT, GT and BYTE flags.
|
|
pub binary_op: T,
|
|
/// Combines ADDMOD, MULMOD and SUBMOD flags.
|
|
pub ternary_op: T,
|
|
/// Combines ADD_FP254, MUL_FP254 and SUB_FP254 flags.
|
|
pub fp254_op: T,
|
|
/// Combines EQ and ISZERO flags.
|
|
pub eq_iszero: T,
|
|
/// Combines AND, OR and XOR flags.
|
|
pub logic_op: T,
|
|
/// Combines NOT and POP flags.
|
|
pub not_pop: T,
|
|
/// Combines SHL and SHR flags.
|
|
pub shift: T,
|
|
/// Flag for KECCAK_GENERAL.
|
|
pub keccak_general: T,
|
|
/// Flag for PROVER_INPUT.
|
|
pub prover_input: T,
|
|
/// Combines JUMP and JUMPI flags.
|
|
pub jumps: T,
|
|
/// Flag for JUMPDEST.
|
|
pub jumpdest: T,
|
|
/// Flag for PUSH.
|
|
pub push: T,
|
|
/// Combines DUP and SWAP flags.
|
|
pub dup_swap: T,
|
|
/// Combines GET_CONTEXT and SET_CONTEXT flags.
|
|
pub context_op: T,
|
|
/// Flag for MSTORE_32BYTES.
|
|
pub mstore_32bytes: T,
|
|
/// Flag for MLOAD_32BYTES.
|
|
pub mload_32bytes: T,
|
|
/// Flag for EXIT_KERNEL.
|
|
pub exit_kernel: T,
|
|
/// Combines MSTORE_GENERAL and MLOAD_GENERAL flags.
|
|
pub m_op_general: T,
|
|
/// Combines PC and PUSH0
|
|
pub pc_push0: T,
|
|
|
|
/// Flag for syscalls.
|
|
pub syscall: T,
|
|
/// Flag for exceptions.
|
|
pub exception: T,
|
|
}
|
|
|
|
/// Number of columns in Cpu Stark.
|
|
/// `u8` is guaranteed to have a `size_of` of 1.
|
|
pub const NUM_OPS_COLUMNS: usize = size_of::<OpsColumnsView<u8>>();
|
|
|
|
impl<T: Copy> From<[T; NUM_OPS_COLUMNS]> for OpsColumnsView<T> {
|
|
fn from(value: [T; NUM_OPS_COLUMNS]) -> Self {
|
|
unsafe { transmute_no_compile_time_size_checks(value) }
|
|
}
|
|
}
|
|
|
|
impl<T: Copy> From<OpsColumnsView<T>> for [T; NUM_OPS_COLUMNS] {
|
|
fn from(value: OpsColumnsView<T>) -> Self {
|
|
unsafe { transmute_no_compile_time_size_checks(value) }
|
|
}
|
|
}
|
|
|
|
impl<T: Copy> Borrow<OpsColumnsView<T>> for [T; NUM_OPS_COLUMNS] {
|
|
fn borrow(&self) -> &OpsColumnsView<T> {
|
|
unsafe { transmute(self) }
|
|
}
|
|
}
|
|
|
|
impl<T: Copy> BorrowMut<OpsColumnsView<T>> for [T; NUM_OPS_COLUMNS] {
|
|
fn borrow_mut(&mut self) -> &mut OpsColumnsView<T> {
|
|
unsafe { transmute(self) }
|
|
}
|
|
}
|
|
|
|
impl<T: Copy> Deref for OpsColumnsView<T> {
|
|
type Target = [T; NUM_OPS_COLUMNS];
|
|
fn deref(&self) -> &Self::Target {
|
|
unsafe { transmute(self) }
|
|
}
|
|
}
|
|
|
|
impl<T: Copy> DerefMut for OpsColumnsView<T> {
|
|
fn deref_mut(&mut self) -> &mut Self::Target {
|
|
unsafe { transmute(self) }
|
|
}
|
|
}
|