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1 /*
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2 Copyright (C) 1988,2005, Shinji Kono
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3 Everyone is permitted to copy and distribute verbatim copies
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4 of this license, but changing it is not allowed. You can also
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5 use this wording to make the terms for other programs.
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6
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7 send your comments to kono@ie.u-ryukyu.ac.jp
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8 */
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9
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10 /*
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11
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12 Tokio to prolog compiler
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13 Runtime routine
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14 with register list
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15
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16 Mon Aug 5 09:01:29 JST 1985
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17 fix put_queue Fri Jan 24 11:47:11 JST 1986
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18 add tracer Sun Jun 22 12:47:21 JST 1986
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19 fix empty/notempty Wed Mar 9 09:24:47 JST 1988
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20 reducing compile time Fri Oct 14 03:27:08 JST 1988
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21 add mcom and fix chop Sat Aug 5 22:25:15 JST 1989
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22 meta call supported Sun Aug 6 00:55:42 JST 1989
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23 $Header$
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24 */
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25
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26 :-dynamic(r_fififi/1).
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27 :-dynamic(r_skip/1).
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28
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29 r_header :-
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30 write('\
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31 Tokio to prolog compiler $Revision$ $Date$\
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32 try ?- tokio_help.\
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33 ').
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34
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35 user_help :- tokio_help.
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36 tokio_help :-
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37 nl, r_header,nl,
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38 write(' com(File). : compile & compile program. '),nl,
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39 write(' com(File,Output).: compile & counsult & save file. '),nl,
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40 write(' pcom(File,Predicate-heads). : compile specified predicates. '),nl,
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41 write(' pcom(File,Predicate-heads,Output).: compile specified predicates. '),nl,
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42 write(' mcom(File). : preprocess '),nl,
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43 write(' mcom(File,Output).: preprocess & outputfile.'),nl,
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44 write(' restart(File). : run tokio save file. '),nl,
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45 write(' tokiodebug. : All computation will be traced. '),nl,
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46 write(' tokionodebug. : Debug mode is switched off. '),nl,
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47 write(' tokiodebugging. : Display some informations about tracing. '),nl,
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48 write(' notimebacktrack. : no time backtrack.. '),nl,
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49 write(' timebacktrack. : time backtrack.. '),nl,
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50 write(' tokio. : start tokio top-level. '),nl,
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51 write(' tokio predicate. : run tokio program. '),nl,
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52 write(' reset_macro. : Reset Macro Definition. com predicates also reset Macros.'),nl.
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53 % write(' tokiospy : All predicate will be traced. '),nl,
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54 % write(' tokiospy(F/N) : Predicate F which have N arity will be traced.'),nl,
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55 % write(' tokionospy : All spy point are removed. '),nl,
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56 % write(' tokionospy(F/N) : Spy point F/N will be removed. '),nl,
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57 % write(' tokiodebugat(T) : Tracing will be start at time=Time. '),nl,
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58 % write(' tokionodebugat : Start point of tracing is removed. '),nl,
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59
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60 r_tokio0(Goals) :-
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61 cputime(Time),
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62 r_do_solve(Goals, C),
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63 cputime(Time1),
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64 T is (Time1-Time), % sec
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65 r_tokiostats(C, T).
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66 r_tokio0(_Goals) :- nl, write('--fail--'), nl.
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67
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68 r_do_solve(Goals,C) :-
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69 r_put_queue(Goals, X, true, Q, Q1),
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70 r_notEmpty(Q),
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71 ( recorded(tokiodebug, on, _), !,
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72 r_solve_t(X,C,0,Q,Q1);
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73 recorded(timebacktrack, off, _), !,
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74 r_solve_d(X,C,0,Q,Q1);
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75 r_solve(X,C,0,Q,Q1)).
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76
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77 notimebacktrack :- recorded(timebacktrack,_,Ref),erase(Ref),fail.
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78 notimebacktrack :- recorda(timebacktrack,off,_Ref).
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79 timebacktrack :- recorded(timebacktrack,_,Ref),erase(Ref),fail.
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80 timebacktrack :- recorda(timebacktrack,on,_Ref).
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81
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82 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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83 % Quick and Easy Compile
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84 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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85 r_put_queue(X, Y, Y, Q, Q) :- var(X),!,
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86 write('cannot call variable:'),write(X),nl.
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87 r_put_queue(X, (unifyNow(X,Xn),Xn,Y), Y, Q, Q) :- systemp(X),!.
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88 % Tokio's varible is local, so, meta call is also local to
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89 % its value. But I don't care about its arguments.
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90 r_put_queue('$t'(Now,_Next),Z, Z1,Q, Q1) :- !,
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91 r_put_queue(Now, Z, Z1,Q, Q1).
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92 r_put_queue((X,Y), Z, Z1, Q, Q1) :- !,
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93 r_put_queue(X,Z, Z2, Q,Q2),
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94 r_put_queue(Y,Z2,Z1,Q2,Q1).
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95 r_put_queue(#P, (r_always(P,Q,Q1),Y), Y, Q, Q1) :- !.
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96 r_put_queue(next(P), (r_next(P,Q,Q1),Y), Y, Q, Q1) :- !.
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97 r_put_queue(length(N), (r_length(M,Q),Y), Y, Q, Q) :- !, % restricted length
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98 M is N.
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99 r_put_queue(P, (P1,Y), Y, Q, Q1) :-
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100 functor(P, H, N), N2 is N+2, N1 is N+1,
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101 functor(P1, H, N2), arg(N1, P1, Q), arg(N2, P1, Q1),
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102 r_put_queue_arg(N,P,P1).
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103
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104 r_put_queue_arg(0,_,_) :- !.
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105 r_put_queue_arg(M,F,F1) :-
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106 arg(M,F,FA),arg(M,F1,FA),M1 is M-1,
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107 r_put_queue_arg(M1,F,F1).
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108
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109 r_tokiostats(L, T) :- nl,
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110 write(L), write(' clock and '),
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111 write(T), write(' sec. '), nl.
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112
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113 r_always(X,['$t'((r_always(Xn,Q,Q2),N),F,E,C)|Q],Q1) :-
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114 unifyNowNext(X,Xx,Xn),
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115 'tokio_call'(Xx,['$t'(N,F,E,C)|Q2],Q1).
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116 r_next(X,['$t'(N,F,E,C)|Q], % same as next(tokio_call(X))
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117 ['$t'(N1,F,E,C)|Q1]) :- unifyNext(X,Xn),
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118 r_put_queue(Xn,N,N1,Q,Q1).
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119
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120 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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121 % Tokio Temporal Resolution
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122 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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123 r_solve(r_end,_Fin,_Now,_X,_Y) :- !.
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124 r_solve(X,Fin,Now,['$t'(Next,F,K,'$'(Fin,Now,Empty))|Futures],
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125 ['$t'(true,true,true,'$'(Fin,Now,Empty))|True]) :-
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126 NextTime is Now+1,
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127 nl,write('t'),write(Now),write(':'),ttyflush,
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128 call(X),
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129 r_exec_fin_keep(Empty,Fin,Now,F,K,Next,Next1),
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130 r_solve(Next1, Fin, NextTime, Futures, True).
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131 r_solve(_,_,Now,_,_) :- B is Now-1, B>0, nl,write(b),write(B),write(':'),
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132 ttyflush,!,fail.
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133
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134 r_solve_t(r_end,_Fin,_Now,_X,_Y) :- !.
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135 r_solve_t(X,Fin,Now,['$t'(Next,F,K,'$'(Fin,Now,Empty))|Futures],
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136 ['$t'(true,true,true,'$'(Fin,Now,Empty))|True]) :-
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137 r_tokioDebug(t(Empty,X,Fin,Now,F,K,Next,Futures,True),Now),
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138 NextTime is Now+1,
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139 nl,write('t'),write(Now),write(':'),ttyflush,
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140 call(X),
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141 r_exec_fin_keep(Empty,Fin,Now,F,K,Next,Next1),
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142 r_solve_t(Next1, Fin, NextTime, Futures, True).
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143 r_solve_t(_,_,Now,_,_) :- B is Now-1, B>0, nl,write(b),write(B),write(':'),
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144 ttyflush,!,fail.
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145
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146 r_solve_d(r_end,_Fin,_Now,_X,_Y) :- !.
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147 r_solve_d(X,Fin,Now,['$t'(Next,F,K,'$'(Fin,Now,Empty))|Futures],
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148 ['$t'(true,true,true,'$'(Fin,Now,Empty))|True]) :-!,
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149 NextTime is Now+1, call(X),
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150 r_exec_fin_keep(Empty,Fin,Now,F,K,Next,Next1),
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151 r_solve_d(Next1, Fin, NextTime, Futures, True).
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152
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153 r_exec_fin_keep(empty, Fin, Fin, F, _, _, r_end) :- !, % end at this time
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154 call(F).
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155 r_exec_fin_keep(notEmpty, Now, Fin, _, K, Next, Next) :-
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156 Now \== Fin,
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157 call(K).
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158
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159 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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160 % Chop Operator Runtime
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161 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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162 r_subBegin(['$t'(_,_,_,'$'(_,Now,_))|Q], % original interval
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163 ['$t'((r_subBegin(Q,SQ,SQ1,Fin),N),F,K,'$'(Fin,Now,E))|SQ],
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164 ['$t'(N,F,K,'$'(Fin,Now,E))|SQ1],Fin). % subinterval's Fin
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165
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166 r_subFin( ['$t'(_, F , _, '$'(Fin,Fin,empty)) | _ ], % outer fin?
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167 ['$t'(_, true, _, '$'(Fin,Fin,empty)) | _ ]) :-
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168 call(F).
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169
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170 r_subNotFin( LaterLoop, '$'(Q,Q1,QF,QF1),
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171 ['$t'(N, F, K, '$'(OuterFin,Now,notEmpty)) | Q ],
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172 ['$t'(N1, F1, K1, '$'(OuterFin,Now,notEmpty)) | Q1 ],
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173 ['$t'(N, F, K, '$'(Fin,Now,Empty)) | QF ],
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174 ['$t'((LaterLoop,N1), F1, K1, '$'(Fin,Now,Empty)) | QF1 ]) :-
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175 r_sub_check(OuterFin,Now,Fin).
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176
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177 r_sub_check(OuterFin,Now,Fin) :- var(OuterFin),!,
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178 r_sub_check2(Fin,Now).
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179 r_sub_check(OuterFin,Now,Fin) :-
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180 OuterFin > Now,r_sub_check3(OuterFin,Now,Fin). %%%% Fin > Now, OuterFin > Now
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181 r_sub_check2(Fin,_Now) :- var(Fin),!. %%%% freeze(Fin,Fin>Now).
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182 r_sub_check2(Fin,Now) :- Fin>Now.
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183 r_sub_check3(_OuterFin,_Now,Fin) :- var(Fin),!. %%%% freeze(Fin,(N<F,F<O))
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184 r_sub_check3(OuterFin,Now,Fin) :- Now<Fin,Fin<OuterFin.
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185
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186 %%%%%%%%%%%%%%%%%%%%%%%%%
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187 % meta call ( same restriction as top level )
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188 %%%%%%%%%%%%%%%%%%%%%%%%%
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189 tokio_call(A,Q,Q) :- var(A),!,
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190 write('uninstantiated meta call'),nl.
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191 tokio_call(A,Q,Q1) :-
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192 r_put_queue(A, X, true, Q, Q1),
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193 call(X).
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194
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195 %%%%%%%%%%%%%%%%%%%%%%%%%
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196 % Tokio System Call
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197 %%%%%%%%%%%%%%%%%%%%%%%%%
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198 % Thanks for Prof. Esterline and Dr. Kilis
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199 r_empty(['$t'(_,_,_,'$'(F,F,empty))|_]).
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200 r_notEmpty(['$t'(_,_,_,'$'(F,N,notEmpty))|_]):- F\==N.
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201
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202 r_length( 0, ['$t'(_,_,_,'$'(Fin,Fin,empty))|_] ) :-!.
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203 r_length( L, ['$t'(_,_,_,'$'(Fin,Now,notEmpty))|_] ) :-
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204 Fin is Now+L.
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205
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206 r_cputime(X) :- statistics(runtime,[X1,_]),X is X1/1000.
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207 r_cputime(X,Q,Q) :- r_cputime(X).
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208
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209
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210 %%%%%%%%%%%%%%%%%%%%%%%%%%%
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211 % Static Variable Runtime
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212 %%%%%%%%%%%%%%%%%%%%%%%%%%%
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213 r_set_value(Name,Value) :- var(Value),!,
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214 write('Assign non fixed value = '),
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215 write(Name),nl.
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216 r_set_value(Name,Value) :-
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217 %%%%%%% r_check(Name,Time),
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218 recorded(Name,(Name,V,_Time),_),!,V=Value.
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219 r_set_value(Name,Value) :-
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220 %%%%%%% r_check(Name,Time),
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221 recorda(Name,(Name,Value,_Time),_).
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222 r_set_value(Name,Value) :-
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223 recorded(Name,(Name,Value,_),Ref),
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224 erase(Ref),!,fail.
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225
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226 r_set_value(Name,Value,_Time) :- var(Value),!,
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227 write('Assign non fixed value = '),
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228 write(Name),nl.
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229 r_set_value(Name,Value,Time) :-
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230 recorded(Name,(Name,V,Time),_),!,V=Value.
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231 r_set_value(Name,Value,Time) :-
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232 recorda(Name,(Name,Value,Time),_).
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233 r_set_value(Name,Value,Time) :-
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234 recorded(Name,(Name,Value,Time),Ref),
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235 erase(Ref),!,fail.
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236
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237 % Special Cases
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238
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239 % #(A=B)
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240 % variable vs varible
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241 % variable vs time constance
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242 % *i <= ??
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243
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244 r_eq(A,B,['$t'((r_eq(C,D,E,F),G),H,I,J)|E],['$t'(G,H,I,J)|F]) :-
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245 unifyNowNext(A,K,C),unifyNowNext(B,K,D).
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246 r_eqn(A,B,['$t'((r_eqn(C,B,D,E),F),G,H,I)|D],['$t'(F,G,H,I)|E]) :-
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247 unifyNowNext(A,B,C).
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248 r_assign(Static,A,['$t'((r_assign(Static,A,B,C),D),(r_set_value(Static,A,Time),E),F,G)|B],
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249 ['$t'(D,E,F,G)|C]):- G='$'(_Fin,Time,_Empty).
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250
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251
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252
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253 % r_check(Name,Time) :-
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254 % recorded(time,Time,_),
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255 % ( recorded(Name,(Name,Value1,Time),_),
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256 % report_conflict(Name,Name,Time)
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257 % ; true),
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258 % ( recorded(r_write,(Name,Bus),_),(
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259 % recorded(Bus,(Name2,Time),_),
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260 % report_conflict(Name,Name2,Time)
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261 % ; recorda(Bus,(Name,Time),_))
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262 % ; true),!.
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263
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264 r_read_value(Name,Value) :- recorded(Name,(Name,Value1,_),_),!,
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265 % recorded(time,Time,_),
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266 % recorda(Name,(Name,Value1,Time),_),
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267 % ( recorded(r_read,(Name,Bus),_),(
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268 % recorded(Bus,(Name2,Time),_),Name2 \= Name,
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269 % report_conflict(Name,Name2,Time)
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270 % ; recorda(Bus,Name,_))
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271 % ; true),!,
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272 Value = Value1.
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273 r_read_value(Name,_Value) :- nl,
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274 write('Reference Not assigned value -- '),
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275 write(Name),nl.
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276
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277 init_static :- recorded(r_static,Name,_),recorded(Name,_,Ref),
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278 erase(Ref),fail.
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279 init_static :- r_abolish(r_skip,1),
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280 assert(r_skip(-1)).
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281
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282 reset_static :- recorded(r_static,Name,Iref),recorded(Name,_,Ref),
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283 erase(Ref),erase(Iref),fail.
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284
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285 static([]) :- !.
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286 static([H|T]) :- !,static(H),static(T).
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287
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288
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289 % static(Name=Bus) :- !,static(Name),static(Bus),
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290 % r_read_bus(Name,Bus),r_write_bus(Name,Bus).
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291 % static(Name=[RBus,WBus]) :- !,static(Name),static(Bus),
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292 % r_read_bus(Name,RBus),r_write_bus(Name,WBus).
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293 static(Name) :- functor(Name,_H,_),recorded(r_static,Name,_),!.
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294 static(Name) :- functor(Name,_H,_),recordz(r_static,Name,_).
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295
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296 static_memory(L) :- static(L).
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297 static_register(L) :- static(L).
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298
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299 r_read_bus(Name,Bus) :-
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300 (recorded(r_read,(Name,Bus),_);recordz(r_read,(Name,Bus),_)).
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301 r_write_bus(Name,Bus) :-
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302 (recorded(r_write,(Name,Bus),_);recordz(r_write,(Name,Bus),_)).
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303
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304 /* :- static(time). */
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305
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306 % r_report_conflict(Name,Name2,Time) :- nl,
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307 % write('Conflict *'),
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308 % write(Name),write(' and *'),
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309 % write(Name2),write(' at '),
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310 % write(Time).
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311
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312 % A \= A :-!,fail.
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313 % _ \= _.
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314
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315 % append([],X,X).
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316 % append([H|X],Y,[H|Z]) :- append(X,Y,Z).
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317
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2
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318 % member(H,[H|_]) :-!.
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319 % member(H,[_|T]) :- member(H,T).
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320
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321 /* for ttyflush */
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322
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323 /* :- (ttyflush ; assert(ttyflush) ). */
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324
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325 /* end of runtime */
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