CydandClaude Fable 5
63312e07f9
- BORLAND/: Borland C++ 4.52 (chosen over 4.5 by byte-match: CODE/RP/CW32.LIB
is identical to 4.52's install lib). BCC32/TLINK32/TLIB/MAKE run natively on
Win11; CODE/BT/OPT.MAK is the shipped BTL4OPT.EXE's exact flag recipe
(extender = Borland PowerPack DPMI32, not Phar Lap TNT).
- restoration/source410/: the literal 1995-form reconstruction of the missing
BT game source (never mixed into CODE/). Round 1-3 state:
* 6 of 10 surviving original TUs COMPILE CLEAN under the period toolchain
(BTMSSN, BTCNSL, BTSCNRL, BTTEAM, BTL4MODE, BTL4ARND) - first builds
since 1996.
* BT_L4/BTL4APP.CPP pilot reconstruction: 12/12 functions, Fail() lands on
its binary-recorded line 400 exactly.
* BT/BTCNSL.HPP: console wire IDs recovered from the binary's ctors
(Killed=9, Damaged=10, ScoreUpdate=13, DeathWithoutHonor=15 [T1];
TeamScore=12 flagged [T4]).
* MUNGA/: 8 engine-header backfills back-dated from the BT412 WinTesla tree
(VDATA numbering decomp-verified; AUDREND's OpenAL-era virtual removed -
the period compiler is the drift detector).
* Tooling: backdate.py (WinTesla->1995 header transform), compile410.sh
(per-TU verification sweep under authentic OPT.MAK flags).
* README: corrected roadmap - MECH.HPP is the capstone grown with the mech
TU reconstructions; BTREG.CPP green = the header-family milestone.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
93 lines
2.4 KiB
Plaintext
93 lines
2.4 KiB
Plaintext
/*------------------------------------------------------------------------
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* filename - poly.cas
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*
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* function(s)
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* poly - generates a polynomial from arguments
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*-----------------------------------------------------------------------*/
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/*
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* C/C++ Run Time Library - Version 6.5
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*
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* Copyright (c) 1987, 1994 by Borland International
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* All Rights Reserved.
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*
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*/
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#pragma inline
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#include <asmrules.h>
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#include <_math.h>
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#include <math.h>
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#include <errno.h>
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/*--------------------------------------------------------------------------*
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Name poly - generates a polynomial from arguments
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Usage double poly(double x, int n, double c []);
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Prototype in math.h
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Description poly generates a polynomial in x, of degree n, with
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coefficients c[0], c[1], ..., c[n]. For example, if n=4,
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the generated polynomial is
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c[4].x^4 + c[3].x^3 + c[2].x^2] + c[1].x + c[0]
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The polynomial is calculated using Horner's method:
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polynom = (..((x.c[n] + c[n-1]).x + c[n-2])..).x + c[0]
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Return value poly returns the value of the polynomial as evaluated for
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the given x.
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If n < 0 then the result is a domain error.
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A range error occurs if the result exceeds double range.
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*---------------------------------------------------------------------------*/
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#pragma warn -use
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double _FARFUNC poly (double x, int n, double c [])
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{
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volatile unsigned sw;
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asm FLD DOUBLE (x)
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asm mov si, n
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asm mov cl, 3
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asm shl si, cl
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asm or si, si
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asm jl ply_domain
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asm LES_ bx, c
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asm FLD DOUBLE (ES_ [bx+si])
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asm jz short ply_end
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ply_loop:
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asm FMUL ST, ST(1)
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asm sub si, 8
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asm FADD DOUBLE (ES_ [bx+si])
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asm jg ply_loop
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ply_end:
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asm FXAM
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asm FSTSW W0 (sw)
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asm FSTP ST(1) /* discard ST(1) */
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asm mov ax, sw
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asm sahf
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asm jc ply_range
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#pragma noretval
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return;
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ply_domain:
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asm mov si, DOMAIN
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asm jmp short ply_err
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ply_range:
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asm mov si, OVERFLOW
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ply_err:
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asm FSTP ST(0) /* discard ST */
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#pragma warn -ret
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return __matherr (_SI, "poly", &x, c, HUGE_VAL);
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#pragma warn .ret
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}
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#pragma warn .use
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