83 lines
3.0 KiB
NASM
83 lines
3.0 KiB
NASM
;*****************************************************************************
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;*
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;* Open Watcom Project
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;*
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;* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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;*
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;* ========================================================================
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;*
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;* This file contains Original Code and/or Modifications of Original
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;* Code as defined in and that are subject to the Sybase Open Watcom
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;* Public License version 1.0 (the 'License'). You may not use this file
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;* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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;* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
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;* provided with the Original Code and Modifications, and is also
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;* available at www.sybase.com/developer/opensource.
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;*
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;* The Original Code and all software distributed under the License are
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;* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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;* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
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;* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
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;* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
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;* NON-INFRINGEMENT. Please see the License for the specific language
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;* governing rights and limitations under the License.
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;*
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;* ========================================================================
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;*
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;* Description: Signed 64-bit division for 386.
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;*
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;*****************************************************************************
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;========================================================================
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;== Name: LLDIV ==
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;== Operation: Signed 8 byte divide ==
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;== Inputs: EAX;EDX Dividend ==
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;== ECX;EBX Divisor ==
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;== SS:ESI pointer to result structure ==
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;== Volatile: none ==
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;========================================================================
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include mdef.inc
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include struct.inc
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ifdef _PROFILE
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include p5prof.inc
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endif
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modstart lldiv386
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xref __I8D
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; defpe imaxdiv
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; xdefp "C",imaxdiv
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defpe lldiv
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xdefp "C",lldiv
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ifdef _PROFILE
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P5Prolog
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endif
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ifdef __STACK__
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push EBX ; save EBX
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mov EAX,08[ESP] ; get numerator
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mov EDX,12[ESP]
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mov EBX,16[ESP] ; get denominator
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mov ECX,20[ESP]
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endif
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docall __I8D ; call long division routine
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mov [ESI],EAX ; store quotient
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mov 4[ESI],EDX
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mov 8[ESI],EBX ; store remainder
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mov 12[ESI],ECX
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ifdef __STACK__
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pop EBX ; restore EBX
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endif
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ifdef _PROFILE
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P5Epilog
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endif
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ret ; return
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endproc lldiv
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; endproc imaxdiv
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endmod
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end
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