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/*
* CHU - Misc utilities
* Copyright (C) 2026 Javier S. Pedro
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef UTILS_H
#define UTILS_H
#define SWAPNC_32(w) (\
(((w) & 0x000000FFUL) << 24) |\
(((w) & 0x0000FF00UL) << 8) |\
(((w) & 0x00FF0000UL) >> 8) |\
(((w) & 0xFF000000UL) >> 24)\
)
/** Computes log2 for an unsigned integer, uses 386+ bsr instruction */
static inline unsigned ulog2(uint32_t x);
#pragma aux ulog2 = "bsr eax, eax" parm [eax] value [eax] modify exact [] nomemory
#endif // UTILS_H
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