56 lines
1.6 KiB
Factor
56 lines
1.6 KiB
Factor
! Copyright (C) 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: compiler-backend
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USING: alien assembler compiler inference kernel lists math
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memory sequences words ;
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: rel-cs ( -- )
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#! Add an entry to the relocation table for the 32-bit
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#! immediate just compiled.
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"cs" f 0 0 rel-dlsym ;
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: CS ( -- [ address ] ) "cs" f dlsym unit ;
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: CS> ( register -- ) CS MOV rel-cs ;
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: >CS ( register -- ) CS swap MOV rel-cs ;
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: reg-stack ( reg n -- op ) cell * neg 2list ;
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: ds-op ( n -- op ) ESI swap reg-stack ;
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: cs-op ( n -- op ) ECX swap reg-stack ;
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M: %peek-d generate-node ( vop -- )
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dup vop-out-1 v>operand swap vop-in-1 ds-op MOV ;
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M: %replace-d generate-node ( vop -- )
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dup vop-in-2 v>operand swap vop-in-1 ds-op swap MOV ;
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M: %inc-d generate-node ( vop -- )
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ESI swap vop-in-1 cell *
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dup 0 > [ ADD ] [ neg SUB ] ifte ;
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M: %immediate generate-node ( vop -- )
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dup vop-out-1 v>operand swap vop-in-1 address MOV ;
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: load-indirect ( dest literal -- )
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intern-literal unit MOV 0 0 rel-address ;
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M: %indirect generate-node ( vop -- )
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#! indirect load of a literal through a table
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dup vop-out-1 v>operand swap vop-in-1 load-indirect ;
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M: %peek-r generate-node ( vop -- )
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ECX CS> dup vop-out-1 v>operand swap vop-in-1 cs-op MOV ;
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M: %dec-r generate-node ( vop -- )
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#! Can only follow a %peek-r
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vop-in-1 ECX swap cell * SUB ECX >CS ;
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M: %replace-r generate-node ( vop -- )
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#! Can only follow a %inc-r
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dup vop-in-2 v>operand swap vop-in-1 cs-op swap MOV
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ECX >CS ;
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M: %inc-r generate-node ( vop -- )
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#! Can only follow a %peek-r
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ECX CS>
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vop-in-1 ECX swap cell * ADD ;
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