| 1 | /* $Id: udivmoddi4.c 93115 2022-01-01 11:31:46Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - __udivmoddi4 implementation
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2022 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 | #include <iprt/stdint.h>
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| 28 | #include <iprt/uint64.h>
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| 29 |
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| 30 | uint64_t __udivmoddi4(uint64_t u64A, uint64_t u64B, uint64_t *pu64R);
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| 31 |
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| 32 | /**
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| 33 | * __udivmoddi4() implementation to satisfy external references from 32-bit
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| 34 | * code generated by gcc-7 or later.
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| 35 | *
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| 36 | * @param u64A The divident value.
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| 37 | * @param u64B The divisor value.
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| 38 | * @param pu64R A pointer to the reminder. May be NULL.
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| 39 | * @returns u64A / u64B
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| 40 | */
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| 41 | uint64_t __udivmoddi4(uint64_t u64A, uint64_t u64B, uint64_t *pu64R)
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| 42 | {
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| 43 | RTUINT64U Divident;
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| 44 | RTUINT64U Divisor;
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| 45 | RTUINT64U Quotient;
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| 46 | RTUINT64U Reminder;
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| 47 | Divident.u = u64A;
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| 48 | Divisor.u = u64B;
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| 49 | Quotient.u = 0; /* shut up gcc 10 */
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| 50 | Reminder.u = 0; /* shut up gcc 10 */
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| 51 | RTUInt64DivRem(&Quotient, &Reminder, &Divident, &Divisor);
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| 52 | if (pu64R)
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| 53 | *pu64R = Reminder.u;
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| 54 | return Quotient.u;
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| 55 | }
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