41 lines
1.3 KiB
Factor
41 lines
1.3 KiB
Factor
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! Copyright (C) 2004, 2005 Slava Pestov.
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! See http://factor.sf.net/license.txt for BSD license.
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IN: assembler
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USING: alien generic hashtables kernel kernel-internals lists
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math memory namespaces ;
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: compiled-base 18 getenv ; inline
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: compiled-header HEX: 01c3babe ; inline
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: set-compiled-1 ( n a -- ) f swap set-alien-signed-1 ; inline
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: set-compiled-4 ( n a -- ) f swap set-alien-signed-4 ; inline
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: compiled-cell ( a -- n ) f swap alien-signed-cell ; inline
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: set-compiled-cell ( n a -- ) f swap set-alien-signed-cell ; inline
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: compile-aligned ( n -- )
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compiled-offset 8 align set-compiled-offset ; inline
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: add-literal ( obj -- lit# )
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address literal-top [ set-compiled-cell ] keep
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dup cell + set-literal-top ;
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: assemble-1 ( n -- )
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compiled-offset set-compiled-1
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compiled-offset 1+ set-compiled-offset ; inline
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: assemble-4 ( n -- )
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compiled-offset set-compiled-4
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compiled-offset 4 + set-compiled-offset ; inline
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: assemble-cell ( n -- )
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compiled-offset set-compiled-cell
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compiled-offset cell + set-compiled-offset ; inline
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: begin-assembly ( -- code-len-fixup reloc-len-fixup )
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compiled-header assemble-cell
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compiled-offset 0 assemble-cell
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compiled-offset 0 assemble-cell ;
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: w>h/h dup -16 shift HEX: ffff bitand >r HEX: ffff bitand r> ;
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