{
     File:       FixMath.p
 
     Contains:   Fixed Math Interfaces.
 
     Version:    Technology: Mac OS 8
                 Release:    Universal Interfaces 3.4.2
 
     Copyright:  © 1985-2002 by Apple Computer, Inc., all rights reserved
 
     Bugs?:      For bug reports, consult the following page on
                 the World Wide Web:
 
                     http://www.freepascal.org/bugs.html
 
}


{
    Modified for use with Free Pascal
    Version 200
    Please report any bugs to <gpc@microbizz.nl>
}

{$mode macpas}
{$packenum 1}
{$macro on}
{$inline on}
{$CALLING MWPASCAL}

unit FixMath;
interface
{$setc UNIVERSAL_INTERFACES_VERSION := $0342}
{$setc GAP_INTERFACES_VERSION := $0200}

{$ifc not defined USE_CFSTR_CONSTANT_MACROS}
    {$setc USE_CFSTR_CONSTANT_MACROS := TRUE}
{$endc}

{$ifc defined CPUPOWERPC and defined CPUI386}
	{$error Conflicting initial definitions for CPUPOWERPC and CPUI386}
{$endc}
{$ifc defined FPC_BIG_ENDIAN and defined FPC_LITTLE_ENDIAN}
	{$error Conflicting initial definitions for FPC_BIG_ENDIAN and FPC_LITTLE_ENDIAN}
{$endc}

{$ifc not defined __ppc__ and defined CPUPOWERPC}
	{$setc __ppc__ := 1}
{$elsec}
	{$setc __ppc__ := 0}
{$endc}
{$ifc not defined __i386__ and defined CPUI386}
	{$setc __i386__ := 1}
{$elsec}
	{$setc __i386__ := 0}
{$endc}

{$ifc defined __ppc__ and __ppc__ and defined __i386__ and __i386__}
	{$error Conflicting definitions for __ppc__ and __i386__}
{$endc}

{$ifc defined __ppc__ and __ppc__}
	{$setc TARGET_CPU_PPC := TRUE}
	{$setc TARGET_CPU_X86 := FALSE}
{$elifc defined __i386__ and __i386__}
	{$setc TARGET_CPU_PPC := FALSE}
	{$setc TARGET_CPU_X86 := TRUE}
{$elsec}
	{$error Neither __ppc__ nor __i386__ is defined.}
{$endc}
{$setc TARGET_CPU_PPC_64 := FALSE}

{$ifc defined FPC_BIG_ENDIAN}
	{$setc TARGET_RT_BIG_ENDIAN := TRUE}
	{$setc TARGET_RT_LITTLE_ENDIAN := FALSE}
{$elifc defined FPC_LITTLE_ENDIAN}
	{$setc TARGET_RT_BIG_ENDIAN := FALSE}
	{$setc TARGET_RT_LITTLE_ENDIAN := TRUE}
{$elsec}
	{$error Neither FPC_BIG_ENDIAN nor FPC_LITTLE_ENDIAN are defined.}
{$endc}
{$setc ACCESSOR_CALLS_ARE_FUNCTIONS := TRUE}
{$setc CALL_NOT_IN_CARBON := FALSE}
{$setc OLDROUTINENAMES := FALSE}
{$setc OPAQUE_TOOLBOX_STRUCTS := TRUE}
{$setc OPAQUE_UPP_TYPES := TRUE}
{$setc OTCARBONAPPLICATION := TRUE}
{$setc OTKERNEL := FALSE}
{$setc PM_USE_SESSION_APIS := TRUE}
{$setc TARGET_API_MAC_CARBON := TRUE}
{$setc TARGET_API_MAC_OS8 := FALSE}
{$setc TARGET_API_MAC_OSX := TRUE}
{$setc TARGET_CARBON := TRUE}
{$setc TARGET_CPU_68K := FALSE}
{$setc TARGET_CPU_MIPS := FALSE}
{$setc TARGET_CPU_SPARC := FALSE}
{$setc TARGET_OS_MAC := TRUE}
{$setc TARGET_OS_UNIX := FALSE}
{$setc TARGET_OS_WIN32 := FALSE}
{$setc TARGET_RT_MAC_68881 := FALSE}
{$setc TARGET_RT_MAC_CFM := FALSE}
{$setc TARGET_RT_MAC_MACHO := TRUE}
{$setc TYPED_FUNCTION_POINTERS := TRUE}
{$setc TYPE_BOOL := FALSE}
{$setc TYPE_EXTENDED := FALSE}
{$setc TYPE_LONGLONG := TRUE}
uses MacTypes;


{$ALIGN MAC68K}


const
	fixed1						= $00010000;
	fract1						= $40000000;
	positiveInfinity			= $7FFFFFFF;
	negativeInfinity			= $80000000;

	{	
	    FixRatio, FixMul, and FixRound were previously in ToolUtils.h
		}
	{
	 *  FixRatio()
	 *  
	 *  Availability:
	 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
	 *    CarbonLib:        in CarbonLib 1.0 and later
	 *    Mac OS X:         in version 10.0 and later
	 	}
function FixRatio(numer: SInt16; denom: SInt16): Fixed; external name '_FixRatio';
{
 *  FixMul()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FixMul(a: Fixed; b: Fixed): Fixed; external name '_FixMul';
{
 *  FixRound()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FixRound(x: Fixed): SInt16; external name '_FixRound';
{
 *  Fix2Frac()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Fix2Frac(x: Fixed): Fract; external name '_Fix2Frac';
{
 *  Fix2Long()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Fix2Long(x: Fixed): SInt32; external name '_Fix2Long';
{
 *  Long2Fix()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Long2Fix(x: SInt32): Fixed; external name '_Long2Fix';
{
 *  Frac2Fix()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Frac2Fix(x: Fract): Fixed; external name '_Frac2Fix';
{
 *  FracMul()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FracMul(x: Fract; y: Fract): Fract; external name '_FracMul';
{
 *  FixDiv()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FixDiv(x: Fixed; y: Fixed): Fixed; external name '_FixDiv';
{
 *  FracDiv()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FracDiv(x: Fract; y: Fract): Fract; external name '_FracDiv';
{
 *  FracSqrt()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FracSqrt(x: Fract): Fract; external name '_FracSqrt';
{
 *  FracSin()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FracSin(x: Fixed): Fract; external name '_FracSin';
{
 *  FracCos()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FracCos(x: Fixed): Fract; external name '_FracCos';
{
 *  FixATan2()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function FixATan2(x: SInt32; y: SInt32): Fixed; external name '_FixATan2';
{
    Frac2X, Fix2X, X2Fix, and X2Frac translate to and from
    the floating point type "extended" (that's what the X is for).
    On the original Mac this was 80-bits and the functions could be
    accessed via A-Traps.  When the 68881 co-processor was added,
    it used 96-bit floating point types, so the A-Traps could not 
    be used.  When PowerPC was added, it used 64-bit floating point
    types, so yet another prototype was added.
}
{$ifc TARGET_CPU_68K}
{$ifc TARGET_RT_MAC_68881}
{$ifc CALL_NOT_IN_CARBON}
{
 *  Frac2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function Frac2X(x: Fract): extended; external name '_Frac2X';

{
 *  Fix2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function Fix2X(x: Fixed): extended; external name '_Fix2X';

{
 *  X2Fix()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function X2Fix(x: extended): Fixed; external name '_X2Fix';

{
 *  X2Frac()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function X2Frac(x: extended): Fract; external name '_X2Frac';

{$endc}  {CALL_NOT_IN_CARBON}
{$elsec}
{$ifc CALL_NOT_IN_CARBON}
{
 *  Frac2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function Frac2X(x: Fract): extended; external name '_Frac2X';
{
 *  Fix2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function Fix2X(x: Fixed): extended; external name '_Fix2X';
{
 *  X2Fix()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function X2Fix(x: extended): Fixed; external name '_X2Fix';
{
 *  X2Frac()
 *  
 *  Availability:
 *    Non-Carbon CFM:   not available
 *    CarbonLib:        not available
 *    Mac OS X:         not available
 }
function X2Frac(x: extended): Fract; external name '_X2Frac';
{$endc}  {CALL_NOT_IN_CARBON}
{$endc}  {TARGET_RT_MAC_68881}
{$elsec}
{
 *  Frac2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Frac2X(x: Fract): Double; external name '_Frac2X';

{
 *  Fix2X()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function Fix2X(x: Fixed): Double; external name '_Fix2X';

{
 *  X2Fix()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function X2Fix(x: Double): Fixed; external name '_X2Fix';

{
 *  X2Frac()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function X2Frac(x: Double): Fract; external name '_X2Frac';

{$endc}  {TARGET_CPU_68K}

{  QuickTime 3.0 makes these Wide routines available on other platforms }
{$ifc TARGET_CPU_PPC OR NOT TARGET_OS_MAC}
{
 *  WideCompare()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideCompare(const (*var*) target: wide; const (*var*) source: wide): SInt16; external name '_WideCompare';

{
 *  WideAdd()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideAdd(var target: wide; const (*var*) source: wide): widePtr; external name '_WideAdd';

{
 *  WideSubtract()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideSubtract(var target: wide; const (*var*) source: wide): widePtr; external name '_WideSubtract';

{
 *  WideNegate()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideNegate(var target: wide): widePtr; external name '_WideNegate';

{
 *  WideShift()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideShift(var target: wide; shift: SInt32): widePtr; external name '_WideShift';

{
 *  WideSquareRoot()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideSquareRoot(const (*var*) source: wide): UInt32; external name '_WideSquareRoot';

{
 *  WideMultiply()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideMultiply(multiplicand: SInt32; multiplier: SInt32; var target: wide): widePtr; external name '_WideMultiply';

{ returns the quotient }
{
 *  WideDivide()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideDivide(const (*var*) dividend: wide; divisor: SInt32; var remainder: SInt32): SInt32; external name '_WideDivide';

{ quotient replaces dividend }
{
 *  WideWideDivide()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideWideDivide(var dividend: wide; divisor: SInt32; var remainder: SInt32): widePtr; external name '_WideWideDivide';

{
 *  WideBitShift()
 *  
 *  Availability:
 *    Non-Carbon CFM:   in InterfaceLib 7.1 and later
 *    CarbonLib:        in CarbonLib 1.0 and later
 *    Mac OS X:         in version 10.0 and later
 }
function WideBitShift(var src: wide; shift: SInt32): widePtr; external name '_WideBitShift';

{$endc}


{$ALIGN MAC68K}


end.