Compiler/Sample programs: Difference between revisions
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Add 100 doors, other minor edits
(Fix bug in C solution) |
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__TOC__
=={{header|Hello
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count is: 8
count is: 9
</pre>
=={{header|100_doors}}==
{| class="wikitable"
|-
! Input to lex
! Output from lex, input to parse
! Output from parse
! Output from gen, input to VM
|-
| style="vertical-align:top" |
<lang c>
/* 100 Doors */
i = 1;
while (i * i <= 100) {
print("door ", i * i, " is open\n");
i = i + 1;
}
</lang>
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<b><pre>
lex ..\100doors.t
2 1 Identifier i
2 3 Op_assign
2 5 Integer 1
2 6 Semicolon
3 1 Keyword_while
3 7 LeftParen
3 8 Identifier i
3 10 Op_multiply
3 12 Identifier i
3 14 Op_lessequal
3 17 Integer 100
3 20 RightParen
3 22 LeftBrace
4 5 Keyword_print
4 10 LeftParen
4 11 String "door "
4 18 Comma
4 20 Identifier i
4 22 Op_multiply
4 24 Identifier i
4 25 Comma
4 27 String " is open\n"
4 39 RightParen
4 40 Semicolon
5 5 Identifier i
5 7 Op_assign
5 9 Identifier i
5 11 Op_add
5 13 Integer 1
5 14 Semicolon
6 1 RightBrace
8 1 End_of_input
</pre></b>
| style="vertical-align:top" |
<b><pre>
lex ..\100doors.t | parse
Sequence
Sequence
;
Assign
Identifier i
Integer 1
While
LessEqual
Multiply
Identifier i
Identifier i
Integer 100
Sequence
Sequence
;
Sequence
Sequence
Sequence
;
Prts
String "door "
;
Prti
Multiply
Identifier i
Identifier i
;
Prts
String " is open\n"
;
Assign
Identifier i
Add
Identifier i
Integer 1
</pre></b>
| style="vertical-align:top" |
<b><pre>
lex ..\100doors.t | parse | gen
Datasize: 1 Strings: 2
"door "
" is open\n"
0 push 1
5 store [0]
10 fetch [0]
15 fetch [0]
20 mul
21 push 100
26 le
27 jz (49) 77
32 push 0
37 prts
38 fetch [0]
43 fetch [0]
48 mul
49 prti
50 push 1
55 prts
56 fetch [0]
61 push 1
66 add
67 store [0]
72 jmp (-63) 10
77 halt
</pre></b>
|}
;And the output is:
<pre>
lex ..\100doors.t | parse | gen | vm
door 1 is open
door 4 is open
door 9 is open
door 16 is open
door 25 is open
door 36 is open
door 49 is open
door 64 is open
door 81 is open
door 100 is open
</pre>
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=={{header|
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=={{header|Fibonacci sequence}}==
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