109 lines
2.6 KiB
Factor
109 lines
2.6 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
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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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#epilogue [ 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 fixup t defer-xt ;
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: compile-jump-label ( label -- ) 0 JMP fixup t defer-xt ;
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: compile-call ( word -- )
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dup postpone-word compile-call-label ;
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: compile-target ( word -- )
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compiled-offset 0 compile-cell f defer-xt ;
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#call [
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compile-call
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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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#call-label [
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compile-call-label
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] "generator" set-word-prop
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#jump-label [
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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 fixup t defer-xt ;
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#jump-t-label [ compile-jump-t ] "generator" set-word-prop
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#jump-t [ compile-jump-t ] "generator" set-word-prop
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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 fixup t defer-xt ;
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#jump-f-label [ compile-jump-f ] "generator" set-word-prop
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#jump-f [ compile-jump-f ] "generator" set-word-prop
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#return-to [ 0 PUSH fixup f defer-xt ] "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 fixup 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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#target-label [
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#! Jump table entries are absolute addresses.
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compile-target
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] "generator" set-word-prop
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#target [
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#! Jump table entries are absolute addresses.
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dup postpone-word compile-target
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] "generator" set-word-prop
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#c-call [
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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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#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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