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185 lines
5.4 KiB
C
185 lines
5.4 KiB
C
/*
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* File: SANE.h
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*
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* Declarations, macros and prototypes for the SANE glue functions
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* in library lsaneglue.
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*
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* Written in 1997 by Soenke Behrens.
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* This code is hereby placed into the Public Domain.
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*
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* $Id: sane.h,v 1.2 1997/09/21 21:51:02 gdr Exp $
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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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/* Decimal representation constants */
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#define SIGDIGLEN 0x001C
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#define DECSTROUTLEN 0x0050
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/* IEEE default environment constant */
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#define IEEEDEFAULTENV 0x0000
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typedef short environment;
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/* Decimal formatting styles */
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#define FLOATDECIMAL 0x0000
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#define FIXEDDECIMAL 0x0001
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/* Exceptions */
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#define INVALID 0x0001
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#define UNDERFLOW 0x0002
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#define OVERFLOW 0x0004
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#define DIVBYZERO 0x0008
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#define INEXACT 0x0010
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typedef short exception;
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/* Ordering relations */
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#define GREATERTHAN 0
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#define LESSTHAN 1
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#define EQUALTO 2
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#define UNORDERED 3
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typedef short relop;
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/* Inquiry classes */
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#define SNAN 0
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#define QNAN 1
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#define INFINITE 2
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#define ZERONUM 3
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#define NORMALNUM 4
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#define DENORMALNUM 5
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typedef short numclass;
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/* Environmental control */
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/* Rounding directions */
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#define TONEAREST 0
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#define UPWARD 1
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#define DOWNWARD 2
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#define TOWARDZERO 3
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typedef short rounddir;
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/* Rounding precisions */
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#define EXTPRECISION 0
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#define DBLPRECISION 1
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#define FLOATPRECISION 2
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typedef short roundpre;
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/* NAN codes */
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#define NANSQRT 1 /* Invalid square root such as sqrt(-1) */
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#define NANADD 2 /* Invalid addition such as +INF - +INF */
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#define NANDIV 4 /* Invalid division such as 0/0 */
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#define NANMUL 8 /* Invalid multiply such as 0 * INF */
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#define NANREM 9 /* Invalid rem or mod such as x REM 0 */
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#define NANASCBIN 17 /* Conversion of invalid ASCII string */
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#define NANCOMP 20 /* Comp NaN converted to floating */
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#define NANZERO 21 /* Attempt to create a NaN with zero code */
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#define NANTRIG 33 /* Invalid argument to trig routine */
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#define NANINVTRIG 34 /* Invalid arg to inverse trig routine */
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#define NANLOG 36 /* Invalid argument to log routine */
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#define NANPOWER 37 /* Invalid argument to x^i or x^y routine */
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#define NANFINAN 38 /* Invalid argument to financial function */
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typedef struct decimal
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{
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short sgn; /* sign 0 for +, 1 for - */
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short exp; /* decimal exponent */
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struct
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{
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unsigned char length, text[SIGDIGLEN], unused;
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}sig; /* significant digits */
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} decimal, Decimal;
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typedef struct decform
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{
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short style; /* FLOATDECIMAL or FIXEDDECIMAL */
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short digits;
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} decform, DecForm;
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typedef void (*haltvector)(void);
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/* SANE types are:
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* float -- IEEE single precision
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* double -- IEEE double precision
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* extended -- IEEE extended precision
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* comp -- SANE comp type
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* Decimal -- SANE decimal string
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* DecForm -- Controls formatting of decimal strings
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*/
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/* Function declarations */
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void s_num2dec(DecForm *, extended, Decimal *);
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extended s_dec2num(Decimal *);
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void s_str2dec(char *, short *, Decimal *, short *);
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void s_dec2str(DecForm *, Decimal *, char *);
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extended s_fabs(extended);
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extended s_fneg(extended);
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extended s_remainder(extended, extended, short *);
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extended s_sqrt(extended);
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extended s_rint(extended);
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extended s_scalb(short, extended);
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extended s_logb(extended);
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extended s_copysign(extended, extended);
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extended s_nextfloat(extended, extended);
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extended s_nextdouble(extended, extended);
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extended s_nextextended(extended, extended);
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extended s_log2(extended);
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extended s_log(extended);
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extended s_log1(extended);
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extended s_exp2(extended);
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extended s_exp(extended);
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extended s_exp1(extended);
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extended s_power(extended, extended);
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extended s_ipower(extended, short);
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extended s_compound(extended, extended);
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extended s_annuity(extended, extended);
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extended s_tan(extended);
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extended s_sin(extended);
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extended s_cos(extended);
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extended s_atan(extended);
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extended s_randomx(extended *);
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numclass s_classfloat(extended);
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numclass s_classdouble(extended);
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numclass s_classcomp(extended);
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numclass s_classextended(extended);
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long s_signnum(extended);
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void s_setexception(exception, long);
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long s_testexception(exception);
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void s_sethalt(exception, long);
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long s_testhalt(exception);
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void s_setround(rounddir);
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rounddir s_getround(void);
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void s_setprecision(roundpre);
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roundpre s_getprecision(void);
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void s_setenvironment(environment);
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void s_getenvironment(environment *);
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void s_procentry(environment *);
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void s_procexit(environment);
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haltvector s_gethaltvector(void);
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void s_sethaltvector(haltvector);
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relop s_relation(extended, extended);
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extended s_nan(unsigned char);
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extended s_inf(void);
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extended s_pi(void);
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/* SANE tool calls */
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extern pascal void SANEBootInit(void) inline(0x010A,dispatcher);
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extern pascal void SANEStartUp(Word) inline(0x020A,dispatcher);
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extern pascal void SANEShutDown(void) inline(0x030A,dispatcher);
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extern pascal Word SANEVersion(void) inline(0x040A,dispatcher);
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extern pascal void SANEReset(void) inline(0x050A,dispatcher);
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extern pascal Boolean SANEStatus(void) inline(0x060A,dispatcher);
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extern pascal void SANEFP816(Word, ...) inline(0x090A,dispatcher);
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extern pascal void SANEDecStr816(Word, ...) inline(0x0A0A,dispatcher);
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extern pascal void SANEElems816(Word, ...) inline(0x0B0A,dispatcher);
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/* FPCP find routine, not part of SANE tool set, found in lsaneglue */
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int findfpcp(void); /* Returns slot number of FPCP card or -1 if not found */
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#endif
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