53 lines
1.7 KiB
Factor
53 lines
1.7 KiB
Factor
! Copyright (C) 2008 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: math kernel layouts system ;
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IN: compiler.constants
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! These constants must match vm/memory.h
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: card-bits 8 ;
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: deck-bits 18 ;
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: card-mark ( -- n ) HEX: 40 HEX: 80 bitor ;
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! These constants must match vm/layouts.h
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: header-offset ( -- n ) object tag-number neg ;
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: float-offset ( -- n ) 8 float tag-number - ;
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: string-offset ( -- n ) 4 bootstrap-cells object tag-number - ;
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: profile-count-offset ( -- n ) 7 bootstrap-cells object tag-number - ;
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: byte-array-offset ( -- n ) 2 bootstrap-cells object tag-number - ;
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: alien-offset ( -- n ) 3 bootstrap-cells object tag-number - ;
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: underlying-alien-offset ( -- n ) bootstrap-cell object tag-number - ;
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: tuple-class-offset ( -- n ) bootstrap-cell tuple tag-number - ;
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: class-hash-offset ( -- n ) bootstrap-cell object tag-number - ;
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: word-xt-offset ( -- n ) 9 bootstrap-cells object tag-number - ;
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: quot-xt-offset ( -- n ) 3 bootstrap-cells object tag-number - ;
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: word-code-offset ( -- n ) 10 bootstrap-cells object tag-number - ;
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: array-start-offset ( -- n ) 2 bootstrap-cells object tag-number - ;
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: compiled-header-size ( -- n ) 4 bootstrap-cells ;
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! Relocation classes
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: rc-absolute-cell 0 ;
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: rc-absolute 1 ;
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: rc-relative 2 ;
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: rc-absolute-ppc-2/2 3 ;
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: rc-relative-ppc-2 4 ;
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: rc-relative-ppc-3 5 ;
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: rc-relative-arm-3 6 ;
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: rc-indirect-arm 7 ;
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: rc-indirect-arm-pc 8 ;
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! Relocation types
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: rt-primitive 0 ;
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: rt-dlsym 1 ;
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: rt-literal 2 ;
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: rt-dispatch 3 ;
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: rt-xt 4 ;
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: rt-here 5 ;
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: rt-label 6 ;
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: rt-immediate 7 ;
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: rc-absolute? ( n -- ? )
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[ rc-absolute-ppc-2/2 = ]
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[ rc-absolute-cell = ]
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[ rc-absolute = ]
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tri or or ;
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