64 lines
1.8 KiB
Factor
64 lines
1.8 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: accessors alien arrays byte-arrays classes.algebra
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combinators.short-circuit kernel layouts math namespaces
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sequences combinators splitting parser effects words
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cpu.architecture compiler.constants compiler.cfg.registers
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compiler.cfg.instructions compiler.cfg.instructions.syntax ;
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IN: compiler.cfg.hats
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<<
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<PRIVATE
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: hat-name ( insn -- word )
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name>> "##" ?head drop "^^" prepend create-in ;
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: hat-quot ( insn -- quot )
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[
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"insn-slots" word-prop [ ] [
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type>> {
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{ def [ [ next-vreg dup ] ] }
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{ temp [ [ next-vreg ] ] }
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[ drop [ ] ]
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} case swap [ dip ] curry compose
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] reduce
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] keep insn-ctor-name "compiler.cfg.instructions" lookup-word suffix ;
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: hat-effect ( insn -- effect )
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"insn-slots" word-prop
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[ type>> { def temp } member-eq? not ] filter [ name>> ] map
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{ "vreg" } <effect> ;
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: define-hat ( insn -- )
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[ hat-name ] [ hat-quot ] [ hat-effect ] tri define-inline ;
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PRIVATE>
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insn-classes get [
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dup [ insn-def-slots length 1 = ] [ name>> "##" head? ] bi and
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[ define-hat ] [ drop ] if
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] each
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>>
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: ^^load-literal ( obj -- dst )
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dup fixnum? [ ^^load-integer ] [ ^^load-reference ] if ;
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: ^^offset>slot ( slot -- vreg' )
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cell 4 = 2 3 ? ^^shl-imm ;
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: ^^unbox-f ( src -- dst )
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drop 0 ^^load-literal ;
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: ^^unbox-byte-array ( src -- dst )
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^^tagged>integer byte-array-offset ^^add-imm ;
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: ^^unbox-c-ptr ( src class -- dst )
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{
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{ [ dup \ f class<= ] [ drop ^^unbox-f ] }
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{ [ dup alien class<= ] [ drop ^^unbox-alien ] }
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{ [ dup byte-array class<= ] [ drop ^^unbox-byte-array ] }
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[ drop ^^unbox-any-c-ptr ]
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} cond ;
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