Source code of Windows XP (NT5)
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page ,132 title 87ctrig - C interfaces - sin, cos, tan;***;87ctrig.asm - trig functions (8087/emulator version);; Copyright (c) 1984-2001, Microsoft Corporation. All rights reserved.;;Purpose:; C interfaces for the sin, cos, and tan functions (8087/emulator version);;Revision History:; 07-04-84 GFW initial version; 05-08-87 BCM added C intrinsic interface (_CI...); 10-12-87 BCM changes for OS/2 Support Library; 11-24-87 BCM added _loadds under ifdef DLL; 01-18-88 BCM eliminated IBMC20; ifos2,noos2 ==> ifmt,nomt; 08-26-88 WAJ 386 version; 11-20-89 WAJ Don't need pascal for MTHREAD 386.;;*******************************************************************************
.xlist include cruntime.inc.list
.dataextrn _OP_SINjmptab:wordextrn _OP_COSjmptab:wordextrn _OP_TANjmptab:word
page
CODESEG
extrn _ctrandisp1:nearextrn _ctrandisp2:near
public oldsinoldsin proc
mov edx, OFFSET _OP_SINjmptabtrigdisp:: jmp _ctrandisp1
oldsin endp
public oldcosoldcos proc
mov edx, OFFSET _OP_COSjmptab jmp trigdisp
oldcos endp
public oldtanoldtan proc
mov edx, OFFSET _OP_TANjmptab jmp trigdisp
oldtan endp
extrn _cintrindisp1:nearextrn _cintrindisp2:near
public _old_CIsin_old_CIsin proc
mov edx, OFFSET _OP_SINjmptabitrigdisp:: jmp _cintrindisp1
_old_CIsin endp
public _old_CIcos_old_CIcos proc
mov edx, OFFSET _OP_COSjmptab jmp itrigdisp
_old_CIcos endp
public _old_CItan_old_CItan proc
mov edx, OFFSET _OP_TANjmptab jmp itrigdisp
_old_CItan endp
end
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