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use crate::{RANGE_CHECK_AUX_TRACE_OFFSET, RANGE_CHECK_TRACE_OFFSET};

// CONSTANTS
// ================================================================================================

// --- Column accessors in the main trace ---------------------------------------------------------

/// A binary selector column to track whether a transition currently in the 8-bit or 16-bit portion
/// of the range checker table.
pub const T_COL_IDX: usize = RANGE_CHECK_TRACE_OFFSET;
/// A binary selector column to help specify whether or not the value should be included in the
/// running product.
pub const S0_COL_IDX: usize = RANGE_CHECK_TRACE_OFFSET + 1;
/// A binary selector column to help specify whether or not the value should be included in the
/// running product.
pub const S1_COL_IDX: usize = RANGE_CHECK_TRACE_OFFSET + 2;
/// A column to hold the values being range-checked.
pub const V_COL_IDX: usize = RANGE_CHECK_TRACE_OFFSET + 3;

// --- Column accessors in the auxiliary columns --------------------------------------------------

/// The 8-bit running product column used for multiset checks.
pub const P0_COL_IDX: usize = RANGE_CHECK_AUX_TRACE_OFFSET;

/// The running product column used for verifying that the range check lookups performed in the
/// Stack and the Memory chiplet match the values checked in the Range Checker.
pub const P1_COL_IDX: usize = P0_COL_IDX + 1;

/// An auxiliary trace column of intermediate values used to enforce AIR constraints on `p1`. It
/// contains the product of the lookups performed by the Stack processor at each cycle.
pub const Q_COL_IDX: usize = P1_COL_IDX + 1;