| author | Christian Urban <urbanc@in.tum.de> |
| Mon, 01 Jan 2018 15:02:03 +0000 | |
| changeset 545 | 56e054d84be2 |
| parent 471 | e5df48ff7033 |
| child 600 | e47db4abb695 |
| permissions | -rw-r--r-- |
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
1 |
|
|
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
2 |
.class public fib.fib |
|
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
3 |
.super java/lang/Object |
|
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
4 |
|
|
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
5 |
.method public <init>()V |
| 545 | 6 |
aload_0 |
7 |
invokenonvirtual java/lang/Object/<init>()V |
|
8 |
return |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
9 |
.end method |
|
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
10 |
|
| 545 | 11 |
.method public static print(Ljava/lang/String;)V |
12 |
.limit locals 5 |
|
13 |
.limit stack 5 |
|
14 |
aload 0 |
|
15 |
getstatic java/lang/System/out Ljava/io/PrintStream; |
|
16 |
swap |
|
17 |
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V |
|
18 |
return |
|
|
207
f824e1331fc6
added slides
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
93
diff
changeset
|
19 |
.end method |
|
f824e1331fc6
added slides
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
93
diff
changeset
|
20 |
|
| 545 | 21 |
.method public static write(I)V |
22 |
.limit locals 1 |
|
23 |
.limit stack 2 |
|
24 |
getstatic java/lang/System/out Ljava/io/PrintStream; |
|
25 |
iload 0 |
|
26 |
invokevirtual java/io/PrintStream/println(I)V |
|
27 |
return |
|
28 |
.end method |
|
29 |
||
30 |
.method public static read()I |
|
31 |
.limit locals 10 |
|
|
373
b018234c9126
updated
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
323
diff
changeset
|
32 |
.limit stack 10 |
|
211
deece8c6cf3a
added
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
208
diff
changeset
|
33 |
|
| 545 | 34 |
ldc 0 |
35 |
istore 1 ; this will hold our final integer |
|
36 |
Label1: |
|
37 |
getstatic java/lang/System/in Ljava/io/InputStream; |
|
38 |
invokevirtual java/io/InputStream/read()I |
|
39 |
istore 2 |
|
40 |
iload 2 |
|
41 |
ldc 10 ; the newline delimiter |
|
42 |
isub |
|
43 |
ifeq Label2 |
|
44 |
iload 2 |
|
45 |
ldc 32 ; the space delimiter |
|
46 |
isub |
|
|
373
b018234c9126
updated
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
323
diff
changeset
|
47 |
ifeq Label2 |
|
211
deece8c6cf3a
added
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
208
diff
changeset
|
48 |
|
| 545 | 49 |
iload 2 |
50 |
ldc 48 ; we have our digit in ASCII, have to subtract it from 48 |
|
51 |
isub |
|
52 |
ldc 10 |
|
53 |
iload 1 |
|
54 |
imul |
|
55 |
iadd |
|
56 |
istore 1 |
|
57 |
goto Label1 |
|
58 |
Label2: |
|
59 |
;when we come here we have our integer computed in local variable 1 |
|
60 |
iload 1 |
|
61 |
ireturn |
|
|
211
deece8c6cf3a
added
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
208
diff
changeset
|
62 |
.end method |
|
207
f824e1331fc6
added slides
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
93
diff
changeset
|
63 |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
64 |
.method public static main([Ljava/lang/String;)V |
| 545 | 65 |
.limit locals 200 |
66 |
.limit stack 200 |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
67 |
|
| 545 | 68 |
ldc "Fib" |
69 |
invokestatic fib/fib/print(Ljava/lang/String;)V |
|
70 |
invokestatic fib/fib/read()I |
|
71 |
istore 0 |
|
72 |
ldc 0 |
|
73 |
istore 1 |
|
74 |
ldc 1 |
|
75 |
istore 2 |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
76 |
|
| 545 | 77 |
Loop_start_1: |
78 |
||
79 |
iload 0 |
|
80 |
ldc 0 |
|
81 |
if_icmple Loop_end_0 |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
82 |
|
| 545 | 83 |
iload 2 |
84 |
istore 3 |
|
85 |
iload 1 |
|
86 |
iload 2 |
|
87 |
iadd |
|
88 |
istore 2 |
|
89 |
iload 3 |
|
90 |
istore 1 |
|
91 |
iload 0 |
|
92 |
ldc 1 |
|
93 |
isub |
|
94 |
istore 0 |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
95 |
|
| 545 | 96 |
goto Loop_start_1 |
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
97 |
|
| 545 | 98 |
Loop_end_0: |
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
99 |
|
| 545 | 100 |
ldc "Result" |
101 |
invokestatic fib/fib/print(Ljava/lang/String;)V |
|
102 |
iload 2 |
|
103 |
invokestatic fib/fib/write(I)V |
|
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
104 |
|
| 545 | 105 |
return |
|
93
4794759139ea
better organised
Christian Urban <christian dot urban at kcl dot ac dot uk>
parents:
diff
changeset
|
106 |
.end method |