77 lines
2.8 KiB
Factor
77 lines
2.8 KiB
Factor
! Copyright (C) 2008, 2010 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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USING: alien arrays byte-arrays kernel layouts literals math
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quotations sequences strings words ;
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IN: compiler.constants
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CONSTANT: card-bits 8
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CONSTANT: deck-bits 18
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: card-mark ( -- n ) 0x40 0x80 bitor ; inline
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: slot-offset ( slot tag -- n ) [ bootstrap-cells ] dip - ; inline
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: float-offset ( -- n ) 8 float type-number - ; inline
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: string-offset ( -- n ) 4 string type-number slot-offset ; inline
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: byte-array-offset ( -- n ) 16 byte-array type-number - ; inline
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: alien-offset ( -- n ) 4 alien type-number slot-offset ; inline
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: tuple-class-offset ( -- n ) 1 tuple type-number slot-offset ; inline
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: word-entry-point-offset ( -- n ) 9 \ word type-number slot-offset ; inline
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: quot-entry-point-offset ( -- n ) 4 quotation type-number slot-offset ; inline
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: array-start-offset ( -- n ) 2 array type-number slot-offset ; inline
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: callstack-length-offset ( -- n ) 1 \ callstack type-number slot-offset ; inline
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: callstack-top-offset ( -- n ) 2 \ callstack type-number slot-offset ; inline
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: context-callstack-top-offset ( -- n ) 0 bootstrap-cells ; inline
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: context-callstack-bottom-offset ( -- n ) 1 bootstrap-cells ; inline
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: context-datastack-offset ( -- n ) 2 bootstrap-cells ; inline
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: context-retainstack-offset ( -- n ) 3 bootstrap-cells ; inline
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: context-callstack-save-offset ( -- n ) 4 bootstrap-cells ; inline
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: context-callstack-seg-offset ( -- n ) 7 bootstrap-cells ; inline
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: segment-start-offset ( -- n ) 0 bootstrap-cells ; inline
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: segment-end-offset ( -- n ) 2 bootstrap-cells ; inline
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! Offsets in vm struct
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: vm-context-offset ( -- n ) 0 bootstrap-cells ; inline
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: vm-spare-context-offset ( -- n ) 1 bootstrap-cells ; inline
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: vm-signal-handler-addr-offset ( -- n ) 8 bootstrap-cells ; inline
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: vm-fault-flag-offset ( -- n ) 9 bootstrap-cells ; inline
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: vm-special-object-offset ( n -- offset )
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bootstrap-cells 10 bootstrap-cells + ;
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! Relocation classes
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CONSTANT: rc-absolute-cell 0
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CONSTANT: rc-absolute 1
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CONSTANT: rc-relative 2
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CONSTANT: rc-absolute-ppc-2/2 3
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CONSTANT: rc-absolute-ppc-2 4
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CONSTANT: rc-relative-ppc-2-pc 5
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CONSTANT: rc-relative-ppc-3-pc 6
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CONSTANT: rc-absolute-2 10
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CONSTANT: rc-absolute-1 11
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CONSTANT: rc-absolute-ppc-2/2/2/2 12
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! Relocation types
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CONSTANT: rt-dlsym 0
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CONSTANT: rt-entry-point 1
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CONSTANT: rt-entry-point-pic 2
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CONSTANT: rt-entry-point-pic-tail 3
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CONSTANT: rt-here 4
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CONSTANT: rt-this 5
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CONSTANT: rt-literal 6
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CONSTANT: rt-untagged 7
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CONSTANT: rt-megamorphic-cache-hits 8
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CONSTANT: rt-vm 9
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CONSTANT: rt-cards-offset 10
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CONSTANT: rt-decks-offset 11
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CONSTANT: rt-dlsym-toc 13
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CONSTANT: rt-inline-cache-miss 14
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CONSTANT: rt-safepoint 15
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: rc-absolute? ( n -- ? )
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${
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$ rc-absolute-ppc-2/2
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$ rc-absolute-cell
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$ rc-absolute
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$ rc-absolute-2
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$ rc-absolute-1
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} member? ;
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