forked from KolibriOS/kolibrios
151 lines
5.3 KiB
NASM
151 lines
5.3 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: WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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;* DESCRIBE IT HERE!
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;*
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;*****************************************************************************
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; These compiler support routines are called by the Fast code generator
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; when compiling with the -fpc option.
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;
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name fdmath
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extrn __FDA : near
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extrn __FDS : near
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extrn __FDM : near
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extrn __FDD : near
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extrn __FDC : near
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_TEXT segment use32 dword public 'CODE'
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assume cs:_TEXT
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public __FADD
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__FADD proc near
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push ecx ; save regs
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push ebx ; ...
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mov ebx,12[esp] ; load op2
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mov ecx,16[esp] ; ...
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call __FDA ; do the add
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op2
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__FADD endp
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public __FSUB
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__FSUB proc near
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push ecx ; save regs
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push ebx ; ...
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mov ebx,12[esp] ; load op2
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mov ecx,16[esp] ; ...
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call __FDS ; do the subtract
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op2
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__FSUB endp
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public __FSUBR
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__FSUBR proc near
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push ecx ; save regs
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push ebx ; ...
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mov ecx,edx ; load op2
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mov ebx,eax ; ...
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mov eax,12[esp] ; load op1
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mov edx,16[esp] ; ...
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call __FDS ; do the subtract
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op1
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__FSUBR endp
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public __FMUL
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__FMUL proc near
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push ecx ; save regs
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push ebx ; ...
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mov ebx,12[esp] ; load op2
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mov ecx,16[esp] ; ...
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call __FDM ; do the multiply
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op2
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__FMUL endp
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public __FDIV
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__FDIV proc near
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push ecx ; save regs
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push ebx ; ...
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mov ebx,12[esp] ; load op2
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mov ecx,16[esp] ; ...
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call __FDD ; do the divide
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op2
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__FDIV endp
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public __FDIVR
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__FDIVR proc near
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push ecx ; save regs
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push ebx ; ...
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mov ecx,edx ; load op2
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mov ebx,eax ; ...
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mov eax,12[esp] ; load op1
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mov edx,16[esp] ; ...
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call __FDD ; do the divide
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op1
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__FDIVR endp
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public __FCMP
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__FCMP proc near
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push ecx ; save regs
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push ebx ; ...
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mov ebx,12[esp] ; load op2
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mov ecx,16[esp] ; ...
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call __FDC ; do the compare
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op2
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__FCMP endp
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public __FCMPR
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__FCMPR proc near
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push ecx ; save regs
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push ebx ; ...
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mov ecx,edx ; load op2
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mov ebx,eax ; ...
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mov eax,12[esp] ; load op1
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mov edx,16[esp] ; ...
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call __FDC ; do the compare
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pop ebx ; restore regs
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pop ecx ; ...
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ret 8 ; return and remove op1
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__FCMPR endp
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_TEXT ends
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end
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