ExpBitsLenCols

openvm_recursion_circuit::primitives::exp_bits_len::air

Struct ExpBitsLenCols 

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#[repr(C)]
pub struct ExpBitsLenCols<T> {
Show 16 fields
    pub is_valid: T,
    pub is_first: T,
    pub bit_idx: T,
    pub base: T,
    pub bit_src: T,
    pub num_bits: T,
    pub apply_bit: T,
    pub low_bits_left: T,
    pub in_low_region: T,
    pub result: T,
    pub result_multiplier: T,
    pub bit_src_mod_2: T,
    pub low_bits_are_zero: T,
    pub high_bits_all_one: T,
    pub bit_src_original: T,
    pub shift_mult: T,

}

Fields§

§is_valid: T

Marks rows that belong to an ExpBitsLen request rather than trailing padding.

§is_first: T

Marks the first row of a 32-row request block. Only these rows publish on the lookup bus.

§bit_idx: T

Bit position carried by this row. Rows 0..30 decompose bits, row 31 is terminal.

§base: T

base^(2^bit_idx).

§bit_src: T

Remaining suffix of the canonical 31-bit decomposition after shifting by bit_idx.

§num_bits: T

Remaining number of low bits that still affect result.

§apply_bit: T

Boolean witness for num_bits != 0.

§low_bits_left: T

Countdown for the low 27 bits used in the BabyBear < p canonicality check.

§in_low_region: T

Boolean witness for low_bits_left != 0.

§result: T

Running product for the requested low-bit exponentiation.

§result_multiplier: T

Multiplies result by either 1 or base on the next transition.

§bit_src_mod_2: T

Current decomposition bit.

§low_bits_are_zero: T

Running flag: all low bits b0..b26 seen so far are zero.

§high_bits_all_one: T

Running flag: all high bits b27..b30 seen so far are one.

§bit_src_original: T

Original bit_src value

§shift_mult: T

Indicator for if this show should send a shift message

Implementations§

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impl<T> ExpBitsLenCols<T>

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pub const fn width() -> usize

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pub fn as_slice(&self) -> &[T]

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pub fn as_slice_mut(&mut self) -> &mut [T]

Mutable view of the whole struct as a contiguous slice of T.

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pub fn to_vec(&self) -> Vec<T>
where T: Clone,

Copy out the contents as a Vec. Requires T: Clone for the slice .to_vec().

Trait Implementations§

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impl<T> Borrow<ExpBitsLenCols<T>> for [T]

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fn borrow(&self) -> &ExpBitsLenCols<T>

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<ExpBitsLenCols<T>> for [T]

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fn borrow_mut(&mut self) -> &mut ExpBitsLenCols<T>

Mutably borrows from an owned value. Read more
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impl<T> StructReflectionHelper for ExpBitsLenCols<T>

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fn struct_reflection() -> Option<Vec<String>>

Auto Trait Implementations§

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impl<T> Freeze for ExpBitsLenCols<T>
where T: Freeze,

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impl<T> RefUnwindSafe for ExpBitsLenCols<T>
where T: RefUnwindSafe,

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impl<T> Send for ExpBitsLenCols<T>
where T: Send,

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impl<T> Sync for ExpBitsLenCols<T>
where T: Sync,

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impl<T> Unpin for ExpBitsLenCols<T>
where T: Unpin,

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impl<T> UnwindSafe for ExpBitsLenCols<T>
where T: UnwindSafe,

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