factor/library/compiler/x86/fixnum.factor

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! :folding=indent:collapseFolds=1:
! $Id$
!
! Copyright (C) 2004 Slava Pestov.
!
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions are met:
!
! 1. Redistributions of source code must retain the above copyright notice,
! this list of conditions and the following disclaimer.
!
! 2. Redistributions in binary form must reproduce the above copyright notice,
! this list of conditions and the following disclaimer in the documentation
! and/or other materials provided with the distribution.
!
! THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
! INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
! DEVELOPERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
! OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
! WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
! OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
! ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
USE: compiler
IN: math-internals
USE: assembler
USE: inference
USE: math
USE: words
USE: kernel
USE: alien
USE: lists
! This file provides compiling definitions for fixnum words
! that are faster than what C gives us.
#drop [
drop
ECX DS>
ECX 4 SUB
ECX >DS
] "generator" set-word-property
#dup [
drop
ECX DS>
EAX [ ECX ] MOV
ECX 4 ADD
[ ECX ] EAX MOV
ECX >DS
] "generator" set-word-property
#swap [
drop
ECX DS>
EAX [ ECX ] MOV
EDX [ ECX -4 ] MOV
[ ECX ] EDX MOV
[ ECX -4 ] EAX MOV
] "generator" set-word-property
#over [
drop
ECX DS>
EAX [ ECX -4 ] MOV
ECX 4 ADD
[ ECX ] EAX MOV
ECX >DS
] "generator" set-word-property
#pick [
drop
ECX DS>
EAX [ ECX -8 ] MOV
ECX 4 ADD
[ ECX ] EAX MOV
ECX >DS
] "generator" set-word-property
\ #dup f "linearize" set-word-property
: self ( word -- )
f swap dup "infer-effect" word-property (consume/produce) ;
\ fixnum- [ \ fixnum- self ] "infer" set-word-property
\ fixnum+ [ \ fixnum+ self ] "infer" set-word-property
: fixnum-insn ( overflow opcode -- )
#! This needs to be factored.
ECX DS>
EAX [ ECX -4 ] MOV
EAX [ ECX ] rot execute
0 JNO fixup
swap compile-call
0 JMP fixup >r
compiled-offset swap patch
ECX 4 SUB
[ ECX ] EAX MOV
ECX >DS
r> compiled-offset swap patch ;
\ fixnum+ [
drop \ fixnum+ \ ADD fixnum-insn
] "generator" set-word-property
\ fixnum- [
drop \ fixnum- \ SUB fixnum-insn
] "generator" set-word-property