mirror of https://github.com/ZDoom/qzdoom.git
66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
/*
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TiMidity++ -- MIDI to WAVE converter and player
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Copyright (C) 1999-2002 Masanao Izumo <mo@goice.co.jp>
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Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef OPTCODE_H_INCLUDED
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#define OPTCODE_H_INCLUDED 1
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#include <stdint.h>
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namespace TimidityPlus
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{
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/*****************************************************************************/
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/*****************************************************************************/
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/* Generic version of imuldiv. */
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inline int32_t imuldiv8(int32_t a, int32_t b)
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{
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return (int32_t)(((int64_t)(a) * (int64_t)(b)) >> 8);
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}
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inline int32_t imuldiv16(int32_t a, int32_t b)
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{
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return (int32_t)(((int64_t)(a) * (int64_t)(b)) >> 16);
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}
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inline int32_t imuldiv24(int32_t a, int32_t b)
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{
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return (int32_t)(((int64_t)(a) * (int64_t)(b)) >> 24);
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}
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inline int32_t imuldiv28(int32_t a, int32_t b)
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{
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return (int32_t)(((int64_t)(a) * (int64_t)(b)) >> 28);
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}
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static inline int32_t signlong(int32_t a)
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{
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return ((a | 0x7fffffff) >> 30);
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}
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}
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/*****************************************************************************/
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#endif /* OPTCODE_H_INCLUDED */
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