80 lines
1.9 KiB
Factor
80 lines
1.9 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
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USING: alien assembler inference kernel kernel-internals lists
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math memory namespaces words ;
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! Not used on x86
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#prologue [ drop ] "generator" set-word-prop
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\ slot [
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PEEK-DS
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2unlist type-tag >r cell * r> - EAX swap 2list EAX swap MOV
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[ ESI ] EAX MOV
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] "generator" set-word-prop
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: compile-call-label ( label -- ) 0 CALL relative ;
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: compile-jump-label ( label -- ) 0 JMP relative ;
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#call-label [
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compile-call-label
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] "generator" set-word-prop
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#jump [
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dup postpone-word compile-jump-label
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] "generator" set-word-prop
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: compile-jump-t ( word -- )
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POP-DS
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! condition is now in EAX
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EAX f address CMP
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! jump w/ address added later
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0 JNE relative ;
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: compile-jump-f ( word -- )
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POP-DS
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! condition is now in EAX
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EAX f address CMP
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! jump w/ address added later
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0 JE relative ;
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#return-to [ 0 PUSH absolute ] "generator" set-word-prop
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#return [ drop RET ] "generator" set-word-prop
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\ dispatch [
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#! Compile a piece of code that jumps to an offset in a
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#! jump table indexed by the fixnum at the top of the stack.
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#! The jump table must immediately follow this macro.
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drop
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POP-DS
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EAX 1 SHR
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EAX HEX: ffff ADD just-compiled f rel-address
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[ EAX ] JMP
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compile-aligned
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compiled-offset swap set-compiled-cell ( fixup -- )
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] "generator" set-word-prop
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#alien-invoke [
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uncons load-dll 2dup dlsym CALL t rel-dlsym
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] "generator" set-word-prop
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#alien-global [
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uncons load-dll 2dup dlsym EAX swap unit MOV f rel-dlsym
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] "generator" set-word-prop
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#unbox [
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dup f dlsym CALL f t rel-dlsym
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EAX PUSH
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] "generator" set-word-prop
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#box [
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EAX PUSH
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dup f dlsym CALL f t rel-dlsym
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ESP 4 ADD
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] "generator" set-word-prop
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#cleanup [
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dup 0 = [ drop ] [ ESP swap ADD ] ifte
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] "generator" set-word-prop
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