230 lines
4.4 KiB
PHP
230 lines
4.4 KiB
PHP
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;***
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;elem87.inc -
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;
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; Copyright (c) 1988-2001, Microsoft Corporation. All rights reserved.
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;
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;Purpose: Include file for 8087 transcendental dunctions.
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; Has jump table and common dispatch code definitions
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;
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;
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;Revision History:
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;
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; 04/21/88 WAJ Added this header. Added wUser1/wUser2/bUser3 to
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; common dispatch code stack frame. These are used
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; for multi thread fortran.
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;
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; 08/25/88 WAJ 386 version
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;
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; 11/16/91 GDP put exception structure on stack frame
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;
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; 02/05/01 GDP modified DispLocals, added DOMAIN_QNAN
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;
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; 03/25/92 GDP added IEEE exception opcodes
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;
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; 09/06/94 CFW Replace MTHREAD with _MT.
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;
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; 08-28-96 JWM Added default_CW & DEFAULT_CW_without_precision for Intel mods.
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;
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;*******************************************************************************
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SBUFSIZE EQU 108 ; length of buffer used by fsave
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; local temps for common dispatch code
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DispLocals struc
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wUser1 dw ?
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wUser2 dw ?
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savCntrl dw ?
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setCntrl dw ?
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StatusWord dw ?
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Fac dt ?
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ifdef I386
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Function dd ?
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else
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Function dw ?
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endif
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ErrorType db ?
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ifdef _MT
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__cpower db ?
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else
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bUser3 db ?
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endif
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typ dd ?
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nam dd ?
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arg1 dq ?
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arg2 dq ?
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retval dq ?
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savebuf db SBUFSIZE dup (?) ; buffer used for fsave'ing
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DispLocals ends
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DSFISize equ ((size DispLocals) + ISIZE - 1) and (not (ISIZE-1))
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DSF equ [rbp-DSFISize] ; Dispatch Stack Frame
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CondCode equ byte ptr [DSF.StatusWord+1]
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savCntrlbyte equ byte ptr [DSF.savCntrl+1]
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ifdef _MT
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_cpower equ <DSF.__cpower>
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endif
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; 8087 control word structure
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tranCntrl= 13h ; 64 bits, round even, affine inf
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Affine= 10h ; affine inf
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default_CW= 027fh ; C default control word
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DEFAULT_CW_without_precision = 007fh ; C default control word, with zero precision bits
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; error types for matherr
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CHECKRANGE= -2 ; check for possible overflow or underflow
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CHECKOVER= -1 ; check for possible overflow
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DOMAIN= 1
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SING= 2
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OVERFLOW= 3
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UNDERFLOW= 4
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TLOSS= 5
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PLOSS= 6
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DOMAIN_QNAN= 7 ; should be changed to DOMAIN
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; before calling matherr
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INEXACT= 8
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; function jump table structure
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funtab struc
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fnamlen db ?
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fnam db 6 dup (?)
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fuseval db 6 dup (?)
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fnumarg db ?
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fnumber db ?
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db ? ;; padding
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funtab ends
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jmptab macro nam,namlen,strnam,useval,numarg
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labelW _&nam&jmptab, PUBLIC
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db namlen ;; 1
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db strnam ;; 6
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db useval ;; 6
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db numarg ;; 1
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db nam ;; 1
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db ? ;; 1
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endm
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Z = 1*ISIZE ; 0.0
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H = 2*ISIZE ; HUGE
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mH = 3*ISIZE ; -HUGE
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Pentry macro pnam,nam,narg
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extrn __&nam&jmptab:word
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extrn __ptrandisp&narg&s:near
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extrn __ptrandisp&narg&d"near
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labelP pnam&SRQQ, PUBLIC
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mov rdx, dataoffset __&nam&jmptab
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jmp __ptrandisp&narg&s
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labelP pnam&DRQQ, PUBLIC
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mov rdx, dataoffset __&nam&jmptab
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jmp __ptrandisp&narg&d
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endm
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; This macro is used to generate the necessary code and declarations
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; for Fortran intrinsics with one argument
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F1ArgEntry macro nam
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extrn _&nam&jmptab:word
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extrn _ctrand1:near
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labelP _FI&nam, PUBLIC
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mov rdx, dataoffset _&nam&jmptab
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jmp _ctrand1
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endm
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; This macro is used to generate the necessary code and declarations
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; for Fortran intrinsics with two arguments
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F2ArgEntry macro nam
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extrn _&nam&jmptab:word
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extrn _ctrand2:near
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labelP _FI&nam, PUBLIC
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mov rdx, dataoffset _&nam&jmptab
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jmp _ctrand2
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endm
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; C/FORTRAN/BASIC floatcall macro
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fc macro JSS,JDS,FCNAM,INS,SIZE,WAITI
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;; JSS - SS:BX and ES:BX offset
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;; JDS - DS:BX offset
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;; FCNAM - float call name suffix
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;; INS - 8087 instruction.
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;; SIZE - byte,word,dword,qword,tbyte
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;; WAIT - 8087 wait.
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;;
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;; if large model, then frame floatcalls for BASIC error recovery
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ifnb <JSS>
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labelP _s&FCNAM, PUBLIC
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push ss
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pop es
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_e&FCNAM proc
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f&ins&size& ptr es:[rbx] ;; Perform instruction.
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waiti
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ret
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_e&FCNAM endp
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endif ;;JES
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ifnb <JDS>
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_f&FCNAM proc
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ifnb <SIZE>
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f&ins&size& ptr [rbx] ;; Perform instruction.
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waiti
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else
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ifnb <ins>
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f&ins
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waiti
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endif
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endif ;;SIZE
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_f&FCNAM endp
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endif ;;JDS
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endm
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; IEEE exception opcodes
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; should be in sync with fpieee.h, ntxcapi.h
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OP_SQRT = 05h
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OP_ACOS = 0dh
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OP_ASIN = 0eh
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OP_ATAN = 0fh
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OP_ATAN2 = 10h
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OP_COS = 12h
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OP_COSH = 13h
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OP_EXP = 14h
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OP_FMOD = 16h
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OP_LOG = 1ah
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OP_LOG10 = 1bh
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OP_POW = 1dh
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OP_SIN = 1eh
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OP_SINH = 1fh
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OP_TAN = 20h
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OP_TANH = 21h
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