e01d2.cod

编译原理课程设计 PL/0语言编译程序 c++builder

=== COMPILE PL0 ===
  0 PROGRAM EX01; 
  0 VAR A,B,C; 
  1 BEGIN 
  2   A:=88; 
  4   B:=11; 
  6  READ(C); 
  8 IF A>B  
 10 THEN  
---------25=25 
 11 A:=100; 
 14 WRITE(A); 
 17 DO 
 17 FOR B:=100;B<300; B:=B+C; DO 
 27   BEGIN 
 27       A:=A-2; 
 31   END; 
 32 WRITE(A);  
 35 UNTIL A<10; 
 39  
 39 END. 
  0  JMP   0   1
  1  INI   0   6
  2  LIT   0  88
  3  STO   0   3
  4  LIT   0  11
  5  STO   0   4
  6  OPR   0  16
  7  STO   0   5
  8  LOD   0   3
  9  LOD   0   4
 10  OPR   0  12
 11  JPC   0  14
 12  LIT   0 100
 13  STO   0   3
 14  LOD   0   3
 15  OPR   0  14
 16  OPR   0  15
 17  LIT   0 100
 18  STO   0   4
 19  LOD   0   4
 20  LIT   0 300
 21  OPR   0  10
 22  JPC   0  32
 23  LOD   0   4
 24  LOD   0   5
 25  OPR   0   2
 26  STO   0   4
 27  LOD   0   3
 28  LIT   0   2
 29  OPR   0   3
 30  STO   0   3
 31  JMP   0  19
 32  LOD   0   3
 33  OPR   0  14
 34  OPR   0  15
 35  LOD   0   3
 36  LIT   0  10
 37  OPR   0  10
 38  JPC   0  17
 39  OPR   0   0
~~~ RUN PL0 ~~~
? 12
100
66
32
-2
~~~ END PL0 ~~~