161 lines
4.7 KiB
Factor
161 lines
4.7 KiB
Factor
! :folding=indent:collapseFolds=1:
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! $Id$
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!
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! Copyright (C) 2004 Slava Pestov.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are met:
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!
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! 1. Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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!
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! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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IN: compiler
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USE: alien
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USE: inference
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USE: errors
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USE: kernel
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USE: lists
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USE: math
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USE: namespaces
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USE: strings
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USE: words
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USE: vectors
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: PUSH-DS ( -- )
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#! Push contents of EAX onto datastack.
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4 ESI R+I
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EAX ESI R>[R] ;
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: POP-DS ( -- )
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#! Pop datastack, store pointer to datastack top in EAX.
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ESI EAX [R]>R
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4 ESI R-I ;
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: SELF-CALL ( name -- )
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#! Call named C function in Factor interpreter executable.
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dlsym-self CALL JUMP-FIXUP ;
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#push-immediate [
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address 4 ESI R+I ESI I>[R]
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] "generator" set-word-property
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#push-indirect [
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intern-literal 4 ESI R+I EAX [I]>R EAX ESI R>[R]
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] "generator" set-word-property
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#call [
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dup postpone-word
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CALL compiled-offset defer-xt
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] "generator" set-word-property
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#call-label [
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CALL compiled-offset defer-xt
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] "generator" set-word-property
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#jump-label [
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JUMP compiled-offset defer-xt
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] "generator" set-word-property
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#jump-label-t [
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POP-DS
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! condition is now in EAX
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f address EAX CMP-I-R
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! jump w/ address added later
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JNE compiled-offset defer-xt
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] "generator" set-word-property
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#return-to [
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PUSH-I/PARTIAL 0 defer-xt
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] "generator" set-word-property
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#return [ drop RET ] "generator" set-word-property
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#drop [ drop 4 ESI R-I ] "generator" set-word-property
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#dup [
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drop
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ESI EAX [R]>R
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4 ESI R+I
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EAX ESI R>[R]
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] "generator" set-word-property
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! This is crap
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#swap [ drop \ swap CALL compiled-offset defer-xt ] "generator" set-word-property
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#over [ drop \ over CALL compiled-offset defer-xt ] "generator" set-word-property
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#pick [ drop \ pick CALL compiled-offset defer-xt ] "generator" set-word-property
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#>r [ drop \ >r CALL compiled-offset defer-xt ] "generator" set-word-property
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#r> [ drop \ r> CALL compiled-offset defer-xt ] "generator" set-word-property
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: begin-jump-table ( -- )
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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 type of the Factor object in
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#! EAX.
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#! The jump table must immediately follow this macro.
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2 EAX R<<I ( -- fixup )
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EAX+/PARTIAL
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EAX JUMP-[R]
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cell compile-aligned
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compiled-offset swap set-compiled-cell ( fixup -- ) ;
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: jump-table-entry ( word -- )
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#! Jump table entries are absolute addresses.
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( dup postpone-word )
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compiled-offset 0 compile-cell 0 defer-xt ;
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: check-jump-table ( vtable -- )
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length num-types = [
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"Jump table must have " num-types " entries" cat3 throw
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] unless ;
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: compile-jump-table ( vtable -- )
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#! Compile a table of words as a word-array of XTs.
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begin-jump-table
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dup check-jump-table
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[ jump-table-entry ] each ;
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: TYPE ( -- )
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#! Peek datastack, store type # in EAX.
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ESI PUSH-[R]
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"type_of" SELF-CALL
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4 ESP R+I ;
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: compile-generic ( vtable -- )
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#! Compile a faster alternative to
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#! : generic ( obj vtable -- )
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#! >r dup type r> vector-nth execute ;
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TYPE compile-jump-table ;
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#generic [ compile-generic ] "generator" set-word-property
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: ARITHMETIC-TYPE ( -- )
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#! Peek top two on datastack, store arithmetic type # in EAX.
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ESI EAX R>R
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EAX PUSH-[R]
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4 EAX R-I
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EAX PUSH-[R]
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"arithmetic_type" SELF-CALL
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8 ESP R+I ;
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: compile-2generic ( vtable -- )
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#! Compile a faster alternative to
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#! : 2generic ( obj vtable -- )
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#! >r 2dup arithmetic-type r> vector-nth execute ;
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ARITHMETIC-TYPE compile-jump-table ;
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#2generic [ compile-2generic ] "generator" set-word-property
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