    function calculateAmount0ForLiquidity(
        uint160 sqrtRatioA,
        uint160 sqrtRatioB,
        uint256 liquidityAmount,
        bool isRoundUp
    ) internal pure returns (int256) {
        if (liquidityAmount == 0 || sqrtRatioA == sqrtRatioB) {
            return 0;
        }

        bool swaped = sqrtRatioA > sqrtRatioB;//@audit

        if (sqrtRatioA > sqrtRatioB) (sqrtRatioA, sqrtRatioB) = (sqrtRatioB, sqrtRatioA);

        int256 r;

        bool _isRoundUp = swaped ? !isRoundUp : isRoundUp;
        uint256 numerator = liquidityAmount;

        if (_isRoundUp) {
            uint256 r0 = FullMath.mulDivRoundingUp(numerator, FixedPoint96.Q96, sqrtRatioA);
            uint256 r1 = FullMath.mulDiv(numerator, FixedPoint96.Q96, sqrtRatioB);

            r = SafeCast.toInt256(r0) - SafeCast.toInt256(r1);
        } else {
            uint256 r0 = FullMath.mulDiv(numerator, FixedPoint96.Q96, sqrtRatioA);
            uint256 r1 = FullMath.mulDivRoundingUp(numerator, FixedPoint96.Q96, sqrtRatioB);

            r = SafeCast.toInt256(r0) - SafeCast.toInt256(r1);
        }

        if (swaped) {
            return -r;
        } else {
            return r;
        }
    }
    /**
     * @notice Computes reuired amounts to increase or decrease sqrt positions.
     * (L/sqrt{x}, L * sqrt{x})
     */
    function computeRequiredAmounts(
        SqrtPerpAssetStatus storage _sqrtAssetStatus,
        bool _isQuoteZero,
        UserStatus memory _userStatus,
        int256 _tradeSqrtAmount
    ) internal returns (int256 requiredAmountUnderlying, int256 requiredAmountStable) {
        if (_tradeSqrtAmount == 0) {
            return (0, 0);
        }

        if (!Reallocation.isInRange(_sqrtAssetStatus)) {
            revert OutOfRangeError();
        }
    function calculateAmount0ForLiquidity(
        uint160 sqrtRatioA,
        uint160 sqrtRatioB,
        uint256 liquidityAmount,
        bool isRoundUp
    ) internal pure returns (int256) {
        if (liquidityAmount == 0 || sqrtRatioA == sqrtRatioB) {
            return 0;
        }

-        bool swaped = sqrtRatioA > sqrtRatioB;
+        bool swapped = sqrtRatioA > sqrtRatioB;

        if (sqrtRatioA > sqrtRatioB) (sqrtRatioA, sqrtRatioB) = (sqrtRatioB, sqrtRatioA);

        int256 r;

-        bool _isRoundUp = swaped ? !isRoundUp : isRoundUp;
+        bool _isRoundUp = swapped ? !isRoundUp : isRoundUp;
        uint256 numerator = liquidityAmount;

        if (_isRoundUp) {
            uint256 r0 = FullMath.mulDivRoundingUp(numerator, FixedPoint96.Q96, sqrtRatioA);
            uint256 r1 = FullMath.mulDiv(numerator, FixedPoint96.Q96, sqrtRatioB);

            r = SafeCast.toInt256(r0) - SafeCast.toInt256(r1);
        } else {
            uint256 r0 = FullMath.mulDiv(numerator, FixedPoint96.Q96, sqrtRatioA);
            uint256 r1 = FullMath.mulDivRoundingUp(numerator, FixedPoint96.Q96, sqrtRatioB);

            r = SafeCast.toInt256(r0) - SafeCast.toInt256(r1);
        }

-        if (swaped) {
+        if (swapped) {
            return -r;
        } else {
            return r;
        }
    }
