1 ! Copyright (C) 2007 Gavin Harrison
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: arrays combinators endian grouping io io.encodings.binary
4 io.files kernel math math.functions namespaces sequences vectors ;
12 : reg-val ( m -- n ) regs get nth ;
14 : set-reg ( val n -- ) regs get set-nth ;
16 : arr-val ( index loc -- z )
19 : set-arr ( val index loc -- )
20 arrays get nth set-nth ;
22 : get-op ( num -- op )
23 -28 shift 0b1111 bitand ;
25 : get-value ( platter -- register )
28 : >32bit ( m -- n ) 0xffffffff bitand ; inline
30 : get-a ( platter -- register )
31 -6 shift 0b111 bitand ; inline
33 : get-b ( platter -- register )
34 -3 shift 0b111 bitand ; inline
36 : get-c ( platter -- register )
39 : get-cb ( platter -- b c ) [ get-c ] keep get-b ;
40 : get-cba ( platter -- c b a ) [ get-cb ] keep get-a ;
41 : get-special ( platter -- register )
42 -25 shift 0b111 bitand ; inline
45 get-cba rot reg-val zero? [
48 [ reg-val ] dip set-reg
51 : binary-op ( quot -- ? )
53 swap [ [ [ reg-val ] bi@ swap ] dip call ] dip
57 [ swap arr-val ] binary-op ;
60 get-cba [ [ reg-val ] bi@ ] dip reg-val set-arr f ;
63 [ + >32bit ] binary-op ;
66 [ * >32bit ] binary-op ;
72 [ bitand 0xffffffff swap - ] binary-op ;
74 : new-array ( size location -- )
75 [ 0 <array> ] dip arrays get set-nth ;
77 : ?grow-storage ( -- )
78 open-arrays get dup empty? [
79 [ arrays get length ] dip push
86 get-cb [ reg-val open-arrays get pop [ new-array ] keep ] dip
90 get-c reg-val dup open-arrays get push
91 f swap arrays get set-nth f ;
93 : op10 ( opcode -- ? )
94 get-c reg-val write1 flush f ;
96 : op11 ( opcode -- ? )
99 : op12 ( opcode -- ? )
100 get-cb reg-val dup zero? [
103 arrays get [ nth clone 0 ] keep set-nth
104 ] if reg-val finger set f ;
106 : op13 ( opcode -- ? )
107 [ get-value ] keep get-special set-reg f ;
109 : advance ( -- val opcode )
110 finger get arrays get first nth
111 finger inc dup get-op ;
132 : exec-loop ( bool -- )
133 [ run-op exec-loop ] unless ;
135 : load-platters ( path -- )
136 binary file-contents 4 group [ be> ] map
137 0 arrays get set-nth ;
141 2 16 ^ <vector> arrays set
143 V{ } clone open-arrays set
146 : run-prog ( path -- )
150 "resource:extra/icfp/2006/sandmark.umz" run-prog ;