asm/AJx87Register.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 15 Dec 2015 23:18:02 +0000
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child 4 f2d0d2859193
permissions -rw-r--r--
Initial port ot Igor Stasenko's AsmJit
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"{ Package: 'jv:dragonfly/asm' }"
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"{ NameSpace: Smalltalk }"
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AJBaseReg subclass:#AJx87Register
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	instanceVariableNames:''
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	classVariableNames:''
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	poolDictionaries:''
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	category:'AsmJit-x86-Operands'
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!
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AJx87Register comment:'I am an x87 Floating Point register (ST0 - ST7) used in the FPU stack. 

The lower 64bit of the floating point ST registers are shared with the MMX registers.'
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!
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!AJx87Register methodsFor:'accessing'!
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code: aCode
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    code := aCode bitOr: RegX87.
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    size := 10.
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!
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influencingRegisters
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    "ST registers overlap with the MMX register"
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    self shouldBeImplemented.
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! !
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!AJx87Register methodsFor:'printing'!
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descriptionOn: s
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    s nextPutAll: 'A floating point register'.
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! !
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!AJx87Register methodsFor:'testing'!
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isGeneralPurpose
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    ^ false
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!
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isRegTypeX87
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    ^ true
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!
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isX86
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    ^ true
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! !
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