Plan 9 from Bell Labs’s /usr/web/sources/contrib/de0u/root/sys/src/cmd/squeak/Cross/plugins/FloatMathPlugin/FloatMathPlugin.st

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'From Croquet1.0beta of 24 March 2006 [latest update: #6665] on 26 March 2006 at 6:00:28 pm'!
InterpreterPlugin subclass: #FloatMathPlugin
	instanceVariableNames: ''
	classVariableNames: ''
	poolDictionaries: ''
	category: 'VMMaker-Plugins'!

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcCos
	"Computes acos(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_acos(rcvr)' inSmalltalk: [rcvr arcCos].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcCosH
	"Computes acosh(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_acosh(rcvr)' inSmalltalk: [rcvr arcCosH].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcSin
	"Computes asin(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_asin(rcvr)' inSmalltalk: [rcvr arcSin].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcSinH
	"Computes asinh(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_asinh(rcvr)' inSmalltalk: [rcvr arcSinH].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcTan
	"Computes atan(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_atan(rcvr)' inSmalltalk: [rcvr arcTan].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcTan2
	"Computes atan2(receiver, arg)"
	| rcvr arg result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #arg type: 'double'.
	self var: #result type: 'double'.
	arg := interpreterProxy stackFloatValue: 0.
	rcvr := interpreterProxy stackFloatValue: 1.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_atan2(rcvr, arg)' inSmalltalk: [rcvr arcTan: arg].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveArcTanH
	"Computes atanh(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_atanh(rcvr)' inSmalltalk: [rcvr arcTanH].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveCos
	"Computes cos(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_cos(rcvr)' inSmalltalk: [rcvr cos].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:24'!
primitiveCosH
	"Computes cosh(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_cosh(rcvr)' inSmalltalk: [rcvr cosH].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 11/6/2005 03:01'!
primitiveExp
	"Computes E raised to the receiver power."
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := (self cCode: '__ieee754_exp(rcvr)' inSmalltalk: [rcvr exp]).
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:21'!
primitiveFMod
	"Computes receiver \\ arg"
	| rcvr arg result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #arg type: 'double'.
	self var: #result type: 'double'.
	arg := interpreterProxy stackFloatValue: 0.
	rcvr := interpreterProxy stackFloatValue: 1.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_fmod(rcvr, arg)' inSmalltalk: [rcvr \\ arg].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:21'!
primitiveFractionalPart
	"Computes receiver \\ 1.0"
	| rcvr result trunc|
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	self var: #trunc type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_modf(rcvr, &trunc)' inSmalltalk: [rcvr fractionPart].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 11/6/2005 16:13'!
primitiveHypot
	"hypot(x,y) returns sqrt(x^2+y^2) with error less  than 1 ulps"
	| rcvr arg result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #arg type: 'double'.
	self var: #result type: 'double'.
	arg := interpreterProxy stackFloatValue: 0.
	rcvr := interpreterProxy stackFloatValue: 1.
	(interpreterProxy failed) ifTrue:[^nil].
	result := self cCode: '__ieee754_hypot(rcvr, arg)' inSmalltalk: [rcvr hypot: arg].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 15:25'!
primitiveLog10
	"Computes log10(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	rcvr < 0.0 ifTrue:[^interpreterProxy primitiveFail].
	result := self cCode: '__ieee754_log10(rcvr)' inSmalltalk: [rcvr log: 10].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/2006 17:24'!
primitiveLogN
	"Computes log(receiver)"
	| rcvr result |
	self export: true.
	self var: #rcvr type: 'double'.
	self var: #result type: 'double'.
	rcvr := interpreterProxy stackFloatValue: 0.
	(interpreterProxy failed) ifTrue:[^nil].
	rcvr < 0.0 ifTrue:[^interpreterProxy primitiveFail].
	result := self cCode: '__ieee754_log(rcvr)' inSmalltalk: [rcvr ln].
	interpreterProxy pop: interpreterProxy methodArgumentCount + 1.
	interpreterProxy pushFloat: result.! !

!FloatMathPlugin methodsFor: 'float primitives' stamp: 'ar 3/26/20

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