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248 lines
6.0 KiB
C
248 lines
6.0 KiB
C
/************************************************************
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Created: Wednesday, September 27, 1989 at 2:58 PM
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SANE.h
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C Interface to the Macintosh Libraries
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Copyright Apple Computer, Inc. 1985-1991
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All rights reserved
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This file is used in these builds: ROM System
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Change History (most recent first):
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<4> 2/17/92 MH Move def on extended80 to types.h, and include types.h
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<3> 8/8/91 JL Updated copyright
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26 Oct 89 - Jon Okada
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Removed initialization of IEEEDEFAULTENV for -mc68881 mode
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(deferred to CLib881.o); declared IEEEDEFAULTENV extern.
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Installed #include of Math.h.
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Removed declarations of sqrt, log, exp, tan, cos, sin, and
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atan (deferred to Math.h).
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Changed declarations of functions power and inf to macro
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definitions using pow and __inf.
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************************************************************/
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#ifndef __SANE__
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#define __SANE__
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#ifndef __TYPES__
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#include <Types.h>
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#endif
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#ifndef __MATH__
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#include <Math.h>
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#endif
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#ifdef mc68881
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/* specific to the MC68881 SANE library */
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#define INEXACT ((exception)(8))
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#define DIVBYZERO ((exception)(16))
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#define UNDERFLOW ((exception)(32))
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#define OVERFLOW ((exception)(64))
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#define INVALID ((exception)(128))
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#define CURINEX1 ((exception)(256))
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#define CURINEX2 ((exception)(512))
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#define CURDIVBYZERO ((exception)(1024))
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#define CURUNDERFLOW ((exception)(2048))
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#define CUROVERFLOW ((exception)(4096))
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#define CUROPERROR ((exception)(8192))
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#define CURSIGNAN ((exception)(16384))
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#define CURBSONUNOR ((exception)(32768))
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#else
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/* specific to the software SANE library */
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#define INVALID ((exception)(1))
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#define UNDERFLOW ((exception)(2))
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#define OVERFLOW ((exception)(4))
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#define DIVBYZERO ((exception)(8))
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#define INEXACT ((exception)(16))
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#define IEEEDEFAULTENV ((environment)(0)) /*IEEE-default floating-point environment*/
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#endif /* mc68881 */
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/* The common interface to the SANE library */
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/* Decimal Representation Constants */
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#define SIGDIGLEN 20 /* significant decimal digits */
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#define DECSTROUTLEN 80 /* max length for dec2str output */
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/* Decimal Formatting Styles */
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#define FLOATDECIMAL ((char)(0))
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#define FIXEDDECIMAL ((char)(1))
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/* Ordering Relations */
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#define GREATERTHAN ((relop)(0))
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#define LESSTHAN ((relop)(1))
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#define EQUALTO ((relop)(2))
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#define UNORDERED ((relop)(3))
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/* Inquiry Classes */
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#define SNAN ((numclass)(0))
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#define QNAN ((numclass)(1))
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#define INFINITE ((numclass)(2))
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#define ZERONUM ((numclass)(3))
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#define NORMALNUM ((numclass)(4))
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#define DENORMALNUM ((numclass)(5))
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/* Rounding Directions */
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#define TONEAREST ((rounddir)(0))
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#define UPWARD ((rounddir)(1))
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#define DOWNWARD ((rounddir)(2))
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#define TOWARDZERO ((rounddir)(3))
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/* Rounding Precisions */
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#define EXTPRECISION ((roundpre)(0))
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#define DBLPRECISION ((roundpre)(1))
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#define FLOATPRECISION ((roundpre)(2))
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#ifdef mc68881
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typedef long exception;
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struct environment {
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long FPCR;
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long FPSR;
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};
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typedef struct environment environment;
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extern environment IEEEDEFAULTENV;
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struct trapvector {
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void (*unordered)();
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void (*inexact)();
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void (*divbyzero)();
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void (*underflow)();
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void (*operror)();
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void (*overflow)();
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void (*signan)();
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};
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typedef struct trapvector trapvector;
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#else
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typedef short exception;
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typedef short environment;
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typedef struct {short w[6];} extended96;
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struct mischaltinfo {
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unsigned short haltexceptions;
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unsigned short pendingCCR;
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long pendingD0;
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};
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typedef struct mischaltinfo mischaltinfo;
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typedef pascal void (*haltvector)(mischaltinfo *misc, void *src2, void *src, void *dst, short opcode);
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#endif
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typedef short relop; /* relational operator */
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typedef short numclass; /* inquiry class */
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typedef short rounddir; /* rounding direction */
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typedef short roundpre; /* rounding precision */
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struct decimal {
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char sgn; /*sign 0 for +, 1 for -*/
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char unused;
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short exp; /*decimal exponent*/
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struct{
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unsigned char length;
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unsigned char text[SIGDIGLEN]; /*significant digits */
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unsigned char unused;
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}sig;
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};
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typedef struct decimal decimal;
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struct decform {
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char style; /*FLOATDECIMAL or FIXEDDECIMAL*/
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char unused;
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short digits;
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};
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typedef struct decform decform;
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef mc68881
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struct trapvector gettrapvector(void);
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void settrapvector(const trapvector *v);
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void x96tox80(const extended *x,extended80 *x80);
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void x80tox96(const extended80 *x80,extended *x);
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#else
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haltvector gethaltvector(void);
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void sethaltvector(haltvector v);
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void x96tox80(const extended96 *x96,extended *x);
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void x80tox96(const extended *x,extended96 *x96);
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#endif
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void num2dec(const decform *f,extended x,decimal *d);
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extended dec2num(const decimal *d);
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void dec2str(const decform *f,const decimal *d,char *s);
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void str2dec(const char *s,short *ix,decimal *d,short *vp);
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extended remainder(extended x,extended y,short *quo);
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extended rint(extended x);
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extended scalb(short n,extended x);
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extended logb(extended x);
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extended copysign(extended x,extended y);
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extended nextfloat(extended x,extended y);
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extended nextdouble(extended x,extended y);
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extended nextextended(extended x,extended y);
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extended log2(extended x);
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extended log1(extended x);
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extended exp2(extended x);
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extended exp1(extended x);
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#define power(x,y) pow(x,y)
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extended ipower(extended x,short i);
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extended compound(extended r,extended n);
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extended annuity(extended r,extended n);
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extended randomx(extended *x);
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numclass classfloat(extended x);
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numclass classdouble(extended x);
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numclass classcomp(extended x);
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numclass classextended(extended x);
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long signnum(extended x);
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void setexception(exception e,long s);
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long testexception(exception e);
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void sethalt(exception e,long s);
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long testhalt(exception e);
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void setround(rounddir r);
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rounddir getround(void);
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void setprecision(roundpre p);
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roundpre getprecision(void);
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void setenvironment(environment e);
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void getenvironment(environment *e);
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void procentry(environment *e);
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void procexit(environment e);
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relop relation(extended x,extended y);
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extended nan(unsigned char c);
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#define inf() __inf()
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extended pi(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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