# Compiler 作業三 Java Assembly Code
[作業描述](https://hackmd.io/@L39Ai4MITOCY2Aioz54q2g/Sy4TFPnmC)
我把作業三 input 的 C++ 全部轉成 Java Assembly Code 了 :kissing_smiling_eyes:
需要的自行取用 ~
會做這個的原因是因為 ChatGPT 有時候會搞事， `javac Main.java && javap -c -v Main` 會 optimize 過再加上有點難看懂。
所以就想說把我寫完的 + ChatGPT + `javac Main.java && javap -c -v Main` 三方生成的 Assembly code 拿來參考完之後融合成適合的版本。
不一定要照著我的版本寫，只要你的 Assembly Code 有辦法輸出正確的測資就行了。
如果哪裡有錯可以直接跟我說 :+1:
:::warning
Assembly Code 的註解長這樣 :
```java
; 這行是註解
```
:::
## subtask01-helloworld
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello World"
invokevirtual java/io/PrintStream/println(Ljava/lang/String;)V
return
.end method
```
或
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello World"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
**第一種寫法 :**
我輸出完 "Hello World" 之後還要輸出 `endl` (要換行)。
所以輸出 "Hello World" 的 Assembly Code 就要改成 `println`。
**第二種寫法 :**
我要輸出什麼就呼叫一次 `getstatic java/lang/System/out Ljava/io/PrintStream;` 然後輸出什麼。
我要輸出 "Hello World" 就呼叫一次，要輸出 `endl` 就呼叫一次。
:::info
第一種寫法看起來像是第二種寫法的優化版本，但是我不管優化只要最後輸出的結果是對的就行了，再加上第二種寫法感覺比較好寫，所以我基本上全部的 subtask 都是用**第二種寫法**在處裡輸出。
:::
### testcase04
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "World"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask02-comment
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 72
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 101
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 108
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 108
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 111
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 32
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 119
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 111
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 114
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 108
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 100
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 33
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hell"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 111
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " w"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "o"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "rld"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase03
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello World!"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
return
.end method
```
## subtask03-precedenc
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;( 3 - 4 * (5 + -8) - 10 / 7)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3
ldc 4
ldc 5
ldc 8
ineg
iadd
imul
isub
ldc 10
ldc 7
idiv
isub
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;( 3 - 4 * (5 + -8) - 10 / 7 > -4 % 3 || !true && !!false)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3
ldc 4
ldc 5
ldc 8
ineg
iadd
imul
isub
ldc 10
ldc 7
idiv
isub
ldc 4
ineg
ldc 3
irem
if_icmpgt greaterThanLabel0
iconst_0
goto endLabel0
greaterThanLabel0:
iconst_1
endLabel0:
iconst_1
iconst_1
ixor
iconst_0
iconst_1
ixor
iconst_1
ixor
iand
ior
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;( 3.0 - 4.0 * (5.0 + -8.0) - 10.0 / 7.0)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3.000000
ldc 4.000000
ldc 5.000000
ldc 8.000000
fneg
fadd
fmul
fsub
ldc 10.000000
ldc 7.000000
fdiv
fsub
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;( 3.0 - 4.0 * (5.0 + -8.0) - 10.0 / 7.0 > -4.0 || !true && !!false)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3.000000
ldc 4.000000
ldc 5.000000
ldc 8.000000
fneg
fadd
fmul
fsub
ldc 10.000000
ldc 7.000000
fdiv
fsub
ldc 4.000000
fneg
fcmpg
ifgt greaterThanLabel1
iconst_0
goto endLabel1
greaterThanLabel1:
iconst_1
endLabel1:
iconst_1
iconst_1
ixor
iconst_0
iconst_1
ixor
iconst_1
ixor
iand
ior
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;( 3 - 4 * (5 + -8) - 10 / 7)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3
ldc 4
ldc 5
ldc 8
ineg
iadd
imul
isub
ldc 10
ldc 7
idiv
isub
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;cout << ( 3 - 4 * (5 + -8) - 10 / 7 > -4 % 3 || !true && !!false) << endl
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3
ldc 4
ldc 5
ldc 8
ineg
iadd
imul
isub
ldc 10
ldc 7
idiv
isub
ldc 4
ineg
ldc 3
irem
if_icmpgt greaterThanLabel0
iconst_0
goto endLabel0
greaterThanLabel0:
iconst_1
endLabel0:
iconst_1
iconst_1
ixor
iconst_0
iconst_1
ixor
iconst_1
ixor
iand
ior
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;(3.0 - 4.0 * (5.0 + -8.0) - 10.0 / 7.0)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3.000000
ldc 4.000000
ldc 5.000000
ldc 8.000000
fneg
fadd
fmul
fsub
ldc 10.000000
ldc 7.000000
fdiv
fsub
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;( 3.0 - 4.0 * (5.0 + -8.0) - 10.0 / 7.0 > -4.0 || !true && !!false)
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 3.000000
ldc 4.000000
ldc 5.000000
ldc 8.000000
fneg
fadd
fmul
fsub
ldc 10.000000
ldc 7.000000
fdiv
fsub
ldc 4.000000
fneg
fcmpg
ifgt greaterThanLabel1
iconst_0
goto endLabel1
greaterThanLabel1:
iconst_1
endLabel1:
iconst_1
iconst_1
ixor
iconst_0
iconst_1
ixor
iconst_1
ixor
iand
ior
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;1000000 + 9 * 1 -1 + 2024 + ( -398 ) + ( 88 % 2 != 0 ) + ( 8888889 % 2 != 0 )
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 1000000
ldc 9
ldc 1
imul
iadd
ldc 1
isub
ldc 2024
iadd
ldc 398
ineg
iadd
ldc 88
ldc 2
irem
ldc 0
if_icmpne notEqualToLabel2
iconst_0
goto endLabel2
notEqualToLabel2:
iconst_1
endLabel2:
iadd
ldc 8888889
ldc 2
irem
ldc 0
if_icmpne notEqualToLabel3
iconst_0
goto endLabel3
notEqualToLabel3:
iconst_1
endLabel3:
iadd
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask04-assigment
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;int x = 0;
ldc 0
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x = 10
ldc 10
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x += 2
iload 1
ldc 2
iadd
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x -= 3
iload 1
ldc 3
isub
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x *= 4
iload 1
ldc 4
imul
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x /= 5
iload 1
ldc 5
idiv
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x %= 6
iload 1
ldc 6
irem
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x |= 4092
iload 1
ldc 4092
ior
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;x &= 255
iload 1
ldc 255
iand
istore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;float yy = 3.14
ldc 3.140000
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;yy = 10.4
ldc 10.400000
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;yy += 2.0
fload 2
ldc 2.000000
fadd
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;yy -= 3.0
fload 2
ldc 3.000000
fsub
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;yy *= 4.0
fload 2
ldc 4.000000
fmul
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;yy /= 5.0
fload 2
ldc 5.000000
fdiv
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;string s = ""
ldc ""
astore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 3
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;s = "Hello"
ldc "Hello"
astore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 3
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;bool bbb = false
iconst_0
istore 4
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;bbb = true
iconst_1
istore 4
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;a = ~243 & 15
ldc 243
iconst_m1
ixor
ldc 15
iand
istore 1
;b = a >> 1
iload 1
ldc 1
ishr
istore 2
;c = a
iload 1
istore 3
;d = b | 9
iload 2
ldc 9
ior
istore 4
;e = b
iload 2
istore 5
;a += a
iload 1
iload 1
iadd
istore 1
;b += b
iload 2
iload 2
iadd
istore 2
;c /= c
iload 3
iload 3
idiv
istore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 5
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;e = 100 ^ 255
ldc 100
ldc 255
ixor
istore 5
e <<= 2;
iload 5
ldc 2
ishl
istore 5
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 5
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;e >>= 4
iload 5
ldc 4
ishr
istore 5
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 5
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask05-casting
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;int x = 3
ldc 3
istore 1
;float y = 3.14
ldc 3.140000
fstore 2
;z1 = x + (int)(y)
iload 1
fload 2
f2i
iadd
istore 3
;z2 = (float)x + y
iload 1
i2f
fload 2
fadd
f2i
istore 4
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; z1 = x + (int)(6.28)
iload 1
ldc 6.280000
f2i
iadd
istore 3
;z2 = (float)(6) + y
ldc 6
i2f
fload 2
fadd
f2i
istore 4
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
;int a = 0, b = 0
ldc 0
istore 1
ldc 0
istore 2
;a += b
iload 1
iload 2
iadd
istore 1
;float c = 3.14
ldc 3.140000
fstore 3
;int d = (int)(c) + (int)2024.3934
fload 3
f2i
ldc 2024.393433
f2i
iadd
istore 4
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 4
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 3
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask06-if
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
ldc 0
istore 1
iload 1
ifne ifEnd0
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd0:
iload 1
ifeq elseBegin0
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto ifEnd1
elseBegin0:
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Bye"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd1:
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a = 0,b = 0,c = 10
ldc 0
istore 1
ldc 0
istore 2
ldc 10
istore 3
; a == 0
iload 1
ldc 0
if_icmpeq equalToLabel0
iconst_0
goto endLabel0
equalToLabel0:
iconst_1
endLabel0:
; b == 0
iload 2
ldc 0
if_icmpeq equalToLabel1
iconst_0
goto endLabel1
equalToLabel1:
iconst_1
endLabel1:
; a == 0 && b == 0
iand
; if( a == 0 && b == 0 )
ifeq ifEnd0
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd0:
; c - b
iload 3
iload 2
isub
; c - b >= 0
ldc 0
if_icmpge greaterThanOrEqualToLabel2
iconst_0
goto endLabel2
greaterThanOrEqualToLabel2:
iconst_1
endLabel2:
; if(c - b >= 0)
ifeq ifEnd1
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "OK!"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd1:
; a == 0
iload 1
ldc 0
if_icmpeq equalToLabel3
iconst_0
goto endLabel3
equalToLabel3:
iconst_1
endLabel3:
; b != 0
iload 2
ldc 0
if_icmpne notEqualToLabel4
iconst_0
goto endLabel4
notEqualToLabel4:
iconst_1
endLabel4:
; a == 0 && b != 0
iand
; c == 10
iload 3
ldc 10
if_icmpeq equalToLabel5
iconst_0
goto endLabel5
equalToLabel5:
iconst_1
endLabel5:
; ( a == 0 && b != 0 ) || c == 10
ior
; if( ( a == 0 && b != 0 ) || c == 10 )
ifeq elseBegin0
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "test1"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto ifEnd2
; else
elseBegin0:
; c == 10
iload 3
ldc 10
if_icmpeq equalToLabel6
iconst_0
goto endLabel6
equalToLabel6:
iconst_1
endLabel6:
; a != 0
iload 1
ldc 0
if_icmpne notEqualToLabel7
iconst_0
goto endLabel7
notEqualToLabel7:
iconst_1
endLabel7:
; c == 10 || a != 0
ior
; a == 0
iload 1
ldc 0
if_icmpeq equalToLabel8
iconst_0
goto endLabel8
equalToLabel8:
iconst_1
endLabel8:
; b == 0
iload 2
ldc 0
if_icmpeq equalToLabel9
iconst_0
goto endLabel9
equalToLabel9:
iconst_1
endLabel9:
; a == 0 && b == 0
iand
; c == 0
iload 3
ldc 0
if_icmpeq equalToLabel10
iconst_0
goto endLabel10
equalToLabel10:
iconst_1
endLabel10:
; a == 0 && b == 0 && c == 0
iand
; c == 10
iload 3
ldc 10
if_icmpeq equalToLabel11
iconst_0
goto endLabel11
equalToLabel11:
iconst_1
endLabel11:
; (a) == 0
iload 1
ldc 0
if_icmpeq equalToLabel12
iconst_0
goto endLabel12
equalToLabel12:
iconst_1
endLabel12:
; c == 10 || (a) == 0
ior
; a == 0 && b == 0 && c == 0 && ( c == 10 || (a) == 0 )
iand
; ( c == 10 || a != 0 ) && ( ( a == 0 && b == 0 && c == 0 && ( c == 10 || (a) == 0 ) ) )
iand
if( ( c == 10 || a != 0 ) && ( ( a == 0 && b == 0 && c == 0 && ( c == 10 || (a) == 0 ) ) ) )
ifeq elseBegin1
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "test2"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto ifEnd3
; else
elseBegin1:
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "test3"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
;if(true)
iconst_1
ifeq ifEnd4
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "test4"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd4:
ifEnd3:
ifEnd2:
; if(true)
iconst_1
ifeq ifEnd5
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "test6"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd5:
return
.end method
```
## subtask07-while
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a = 0, b = 0, c = 10
ldc 0
istore 1
ldc 0
istore 2
ldc 10
istore 3
Loop0Start:
; c != 0
iload 3
ldc 0
if_icmpne notEqualToLabel0
iconst_0
goto endLabel0
notEqualToLabel0:
iconst_1
endLabel0:
; while( c != 0 )
ifeq Loop0End
; c -= 1
iload 3
ldc 1
isub
istore 3
goto Loop0Start
Loop0End:
Loop1Start:
; (a) == 0
iload 1
ldc 0
if_icmpeq equalToLabel1
iconst_0
goto endLabel1
equalToLabel1:
iconst_1
endLabel1:
; (b) == 0
iload 2
ldc 0
if_icmpeq equalToLabel2
iconst_0
goto endLabel2
equalToLabel2:
iconst_1
endLabel2:
; (a) == 0 || (b) == 0
ior
; a == 0
iload 1
ldc 0
if_icmpeq equalToLabel3
iconst_0
goto endLabel3
equalToLabel3:
iconst_1
endLabel3:
; b == 10
iload 2
ldc 10
if_icmpeq equalToLabel4
iconst_0
goto endLabel4
equalToLabel4:
iconst_1
endLabel4:
; a == 0 || b == 10
ior
; c == 0
iload 3
ldc 0
if_icmpeq equalToLabel5
iconst_0
goto endLabel5
equalToLabel5:
iconst_1
endLabel5:
; ( a == 0 || b == 10 || c == 0 )
ior
; (a) == 0 || (b) == 0 || ( a == 0 || b == 10 || c == 0 )
ior
; while( (a) == 0 || (b) == 0 || ( a == 0 || b == 10 || c == 0 ) )
ifeq Loop1End
; a -= 1
iload 1
ldc 1
isub
istore 1
; b -= 1
iload 2
ldc 1
isub
istore 2
; c -= 1
iload 3
ldc 1
isub
istore 3
goto Loop1Start
Loop1End:
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 32
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 32
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask08-for
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int c = 10
ldc 10
istore 1
; int i = 0
ldc 0
istore 2
; for()
Loop0Start:
; i < c
iload 2
iload 1
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
ifeq Loop0End
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello world"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; i++
iinc 2 1
goto Loop0Start
Loop0End:
; for()
Loop1Start:
; c >= 0
iload 1
ldc 0
if_icmpge greaterThanOrEqualToLabel1
iconst_0
goto endLabel1
greaterThanOrEqualToLabel1:
iconst_1
endLabel1:
ifeq Loop1End
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "apple!"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; c -= 1
iload 1
ldc 1
isub
istore 1
goto Loop1Start
Loop1End:
return
.end method
}
```
## subtask09-function
### testcase01
```java
.class public Main
.super java/lang/Object
; bool check(int a,int b,string s,bool c)
.method public static check(IILjava/lang/String;Z)Z
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 2
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 0
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 2
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; c == true
iload 3
iconst_1
if_icmpeq equalToLabel0
iconst_0
goto endLabel0
equalToLabel0:
iconst_1
endLabel0:
ireturn
.end method
; int main(string argv[])
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; check(1,2,"apple",true)
ldc 1
ldc 2
ldc "apple"
iconst_1
invokestatic Main/check(IILjava/lang/String;Z)Z
; bool result = check(1,2,"apple",true)
istore 1
; int num = result + 7
iload 1
ldc 7
iadd
istore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask10-array
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a[5] = {10, 20, 30, 40, 50}
ldc 5
newarray int
dup
ldc 0
ldc 10
iastore
dup
ldc 1
ldc 20
iastore
dup
ldc 2
ldc 30
iastore
dup
ldc 3
ldc 40
iastore
dup
ldc 4
ldc 50
iastore
astore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 0
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 1
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 3
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 4
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a[5] = {10, 20, 30, 40, 50}
ldc 5
newarray int
dup
ldc 0
ldc 10
iastore
dup
ldc 1
ldc 20
iastore
dup
ldc 2
ldc 30
iastore
dup
ldc 3
ldc 40
iastore
dup
ldc 4
ldc 50
iastore
astore 1
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 0
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 1
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 3
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 4
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; int b[1001]
ldc 1001
newarray int
astore 2
; b[3] = 9
aload 2
ldc 3
ldc 9
iastore
; b[1000] = 1000
aload 2
ldc 1000
ldc 1000
iastore
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 2
ldc 3
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 2
ldc 1000
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask11-autotype
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; auto x = 6.0;
ldc 6.000000
fstore 1
; auto y = true;
iconst_1
istore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 1
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(Z)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask12-loop2
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int counter = 0
ldc 0
istore 1
; while()
Loop0Start:
; counter < 100
iload 1
ldc 100
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
ifeq Loop0End
; counter += 1
iload 1
ldc 1
iadd
istore 1
; counter == 99
iload 1
ldc 99
if_icmpeq equalToLabel1
iconst_0
goto endLabel1
equalToLabel1:
iconst_1
endLabel1:
; if( counter == 99 )
ifeq ifEnd1
; break
goto Loop0End
ifEnd1:
; counter % 9 == 0
iload 1
ldc 9
irem
ldc 0
if_icmpeq equalToLabel2
iconst_0
goto endLabel2
equalToLabel2:
iconst_1
endLabel2:
; if( counter % 9 == 0 )
ifeq ifEnd2
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Hello World "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
ldc 2
irem
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd2:
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 998244353
iload 1
irem
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto Loop0Start
Loop0End:
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a[10] = { 10, 21, 30, 41, 50 }
ldc 10
newarray int
dup
ldc 0
ldc 10
iastore
dup
ldc 1
ldc 21
iastore
dup
ldc 2
ldc 30
iastore
dup
ldc 3
ldc 41
iastore
dup
ldc 4
ldc 50
iastore
astore 1
; int i = 0
ldc 0
istore 2
; for()
Loop0Start:
; i < 9
iload 2
ldc 9
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
ifeq Loop0End
; int j = a[i]
aload 1
iload 2
iaload
istore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
iload 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; j % 2 == 0
iload 3
ldc 2
irem
ldc 0
if_icmpeq equalToLabel1
iconst_0
goto endLabel1
equalToLabel1:
iconst_1
endLabel1:
; if()
ifeq ifEnd0
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Even"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
ifEnd0:
; i++
iinc 2 1
goto Loop0Start
Loop0End:
return
.end method
```
## subtask13-2Darray
### testcase01
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a[3][3]
ldc 3
ldc 3
multianewarray [[I 2
astore 1
; a[0][0] = 1
aload 1
ldc 0
aaload
ldc 0
ldc 1
iastore
; a[0][1] = 2
aload 1
ldc 0
aaload
ldc 1
ldc 2
iastore
; a[0][2] = 3
aload 1
ldc 0
aaload
ldc 2
ldc 3
iastore
; a[1][0] = 4
aload 1
ldc 1
aaload
ldc 0
ldc 4
iastore
; a[1][1] = 5
aload 1
ldc 1
aaload
ldc 1
ldc 5
iastore
; a[2][2] = 6
aload 1
ldc 2
aaload
ldc 2
ldc 6
iastore
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 1
aaload
ldc 0
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 1
aaload
ldc 1
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 2
aaload
ldc 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 0
aaload
ldc 0
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 0
aaload
ldc 1
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 0
aaload
ldc 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
ldc 1
aaload
ldc 2
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## subtask14-forall
### testcase01
```java
.class public Main
.super java/lang/Object
; int mod(int num,int mod)
.method public static mod(II)I
.limit stack 100
.limit locals 100
; num < 0
iload 0
ldc 0
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
; if()
ifeq ifEnd0
iload 0
iload 0
ldc 1
ineg
imul
iload 1
idiv
ldc 1
iadd
iload 1
imul
iadd
ireturn
ifEnd0:
iload 0
iload 1
irem
ireturn
.end method
; void nothing_function(string s)
.method public static nothing_function(Ljava/lang/String;)V
.limit stack 100
.limit locals 100
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 0
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 1000000007
ldc 99824353
invokestatic Main/mod(II)I
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc 10
ineg
ldc 2
invokestatic Main/mod(II)I
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
; int main(string argv[])
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; nothing_function("Hello world");
ldc "Hello world"
invokestatic Main/nothing_function(Ljava/lang/String;)V
; int apple = 99824353
ldc 99824353
istore 1
; nothing_function("apple!")
ldc "apple!"
invokestatic Main/nothing_function(Ljava/lang/String;)V
; mod(apple,2)
iload 1
ldc 2
invokestatic Main/mod(II)I
ldc 2
; mod(apple,2) % 2
irem
ldc 1
; mod(apple,2) % 2 == 1
if_icmpeq equalToLabel1
iconst_0
goto endLabel1
equalToLabel1:
iconst_1
endLabel1:
; if()
ifeq ifEnd1
; apple == 998244353
iload 1
ldc 998244353
if_icmpeq equalToLabel2
iconst_0
goto endLabel2
equalToLabel2:
iconst_1
endLabel2:
; if()
ifeq elseBegin2
; int i = 0
ldc 0
istore 2
; for()
Loop3Start:
; i < 10
iload 2
ldc 10
if_icmplt lessThanLabel3
iconst_0
goto endLabel3
lessThanLabel3:
iconst_1
endLabel3:
ifeq Loop3End
; int q = 10
ldc 10
istore 3
; while()
Loop4Start:
; q != 0
iload 3
ldc 0
if_icmpne notEqualToLabel4
iconst_0
goto endLabel4
notEqualToLabel4:
iconst_1
endLabel4:
ifeq Loop4End
; q -= 1
iload 3
ldc 1
isub
istore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "OK!"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto Loop4Start
Loop4End:
; i += 1
iload 2
ldc 1
iadd
istore 2
goto Loop3Start
Loop3End:
; int i=0
ldc 0
istore 2
; for()
Loop5Start:
; i < 20
iload 2
ldc 20
if_icmplt lessThanLabel5
iconst_0
goto endLabel5
lessThanLabel5:
iconst_1
endLabel5:
ifeq Loop5End
; int q = mod(apple,2)
iload 1
ldc 2
invokestatic Main/mod(II)I
istore 3
; while()
Loop6Start:
; q > 0
iload 3
ldc 0
if_icmpgt greaterThanLabel6
iconst_0
goto endLabel6
greaterThanLabel6:
iconst_1
endLabel6:
ifeq Loop6End
; q -= 1
iload 3
ldc 1
isub
istore 3
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "OK!"
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
goto Loop6Start
Loop6End:
; i += 2
iload 2
ldc 2
iadd
istore 2
goto Loop5Start
Loop5End:
goto elseEnd2
; else
elseBegin2:
; nothing_function("something wrong");
ldc "something wrong"
invokestatic Main/nothing_function(Ljava/lang/String;)V
ifEnd2:
ifEnd1:
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
ldc 2
invokestatic Main/mod(II)I
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
### testcase02
```java
.class public Main
.super java/lang/Object
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int a[3][3]
ldc 3
ldc 3
multianewarray [[I 2
astore 1
; int i = 0
ldc 0
istore 2
; for()
Loop0Start:
; i < 3
iload 2
ldc 3
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
ifeq Loop0End
; int j = 0
ldc 0
istore 3
; for()
Loop1Start:
; j < 3
iload 3
ldc 3
if_icmplt lessThanLabel1
iconst_0
goto endLabel1
lessThanLabel1:
iconst_1
endLabel1:
ifeq Loop1End
; a[i][j]
aload 1
iload 2
aaload
iload 3
; ( i + j + 998244353 ) % 82781
iload 2
iload 3
iadd
ldc 998244353
iadd
ldc 82781
irem
; a[i][j] = ( i + j + 998244353 ) % 82781
iastore
; j++
iinc 3 1
goto Loop1Start
Loop1End:
; i++
iinc 2 1
goto Loop0Start
Loop0End:
; int i = 2
ldc 2
istore 2
; for()
Loop2Start:
; i >= 0
iload 2
ldc 0
if_icmpge greaterThanOrEqualToLabel2
iconst_0
goto endLabel2
greaterThanOrEqualToLabel2:
iconst_1
endLabel2:
ifeq Loop2End
; int j = 0
ldc 0
istore 3
; for()
Loop3Start:
; j < 3
iload 3
ldc 3
if_icmplt lessThanLabel3
iconst_0
goto endLabel3
lessThanLabel3:
iconst_1
endLabel3:
ifeq Loop3End
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 2
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 32
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 3
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
bipush 32
invokevirtual java/io/PrintStream/print(C)V
getstatic java/lang/System/out Ljava/io/PrintStream;
aload 1
iload 2
aaload
iload 3
iaload
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
; j++
iinc 3 1
goto Loop3Start
Loop3End:
; i--
iinc 2 -1
goto Loop2Start
Loop2End:
return
.end method
```
## subtask15-bonus
### testcase01
```java
.class public Main
.super java/lang/Object
; float calculate_pi(int terms)
.method public static calculate_pi(I)F
.limit stack 100
.limit locals 100
; float pi = 3.0;
ldc 3.000000
fstore 1
; float two = 2.0;
ldc 2.000000
fstore 2
; bool add = true
iconst_1
istore 3
; int k = 1
ldc 1
istore 4
; for()
Loop0Start:
; k < terms
iload 4
iload 0
if_icmplt lessThanLabel0
iconst_0
goto endLabel0
lessThanLabel0:
iconst_1
endLabel0:
ifeq Loop0End
; float term = (float)4 / (two * (float)k * (two * (float)k + 1.0) * (two * (float)k + two))
ldc 4
i2f
fload 2
iload 4
i2f
fmul
fload 2
iload 4
i2f
fmul
ldc 1.000000
fadd
fmul
fload 2
iload 4
i2f
fmul
fload 2
fadd
fmul
fdiv
fstore 5
; if (add)
iload 3
ifeq elseBegin1
; pi += term
fload 1
fload 5
fadd
fstore 1
; add = false
iconst_0
istore 3
goto ifEnd1
elseBegin1:
; pi -= term
fload 1
fload 5
fsub
fstore 1
; add = true;
iconst_1
istore 3
ifEnd1:
; k++
iinc 4 1
goto Loop0Start
Loop0End:
fload 1
freturn
.end method
; int main(string argv[])
.method public static main([Ljava/lang/String;)V
.limit stack 100
.limit locals 100
; int terms = 100
ldc 100
istore 1
; float pi = calculate_pi(terms)
iload 1
invokestatic Main/calculate_pi(I)F
fstore 2
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "Approximation of Pi after "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
iload 1
invokevirtual java/io/PrintStream/print(I)V
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc " terms: "
invokevirtual java/io/PrintStream/print(Ljava/lang/String;)V
getstatic java/lang/System/out Ljava/io/PrintStream;
fload 2
invokevirtual java/io/PrintStream/print(F)V
getstatic java/lang/System/out Ljava/io/PrintStream;
invokevirtual java/io/PrintStream/println()V
return
.end method
```
## 6/19 24分上分列車
### compiler_common.h
```c
#ifndef COMPILER_COMMON_H
#define COMPILER_COMMON_H
#include <stdbool.h>
#include <stdint.h>
#define getBool(val) (*(int8_t*)&((val)->value))
#define getByte(val) (*(int8_t*)&((val)->value))
#define getChar(val) (*(int8_t*)&((val)->value))
#define getShort(val) (*(int16_t*)&((val)->value))
#define getInt(val) (*(int32_t*)&((val)->value))
#define getLong(val) (*(int64_t*)&((val)->value))
#define getFloat(val) (*(float*)&((val)->value))
#define getDouble(val) (*(double*)&((val)->value))
#define getString(val) (*(char**)&((val)->value))
#define asVal(val) (*(int64_t*)&(val))
typedef enum _objectType {
OBJECT_TYPE_UNDEFINED,
OBJECT_TYPE_AUTO,
OBJECT_TYPE_VOID,
OBJECT_TYPE_BOOL,
OBJECT_TYPE_BYTE,
OBJECT_TYPE_CHAR,
OBJECT_TYPE_SHORT,
OBJECT_TYPE_INT,
OBJECT_TYPE_LONG,
OBJECT_TYPE_FLOAT,
OBJECT_TYPE_DOUBLE,
OBJECT_TYPE_STR,
} ObjectType;
typedef struct _symbolData {
char* name;
//int32_t index;
int64_t addr;
//int32_t lineno;
char* func_sig;
} SymbolData;
typedef struct _object {
ObjectType type;
//uint32_t array;
//uint64_t value;
//uint8_t flag;
SymbolData* symbol;
//LinkedList* arraySubscript;
} Object;
extern int yylineno;
extern int funcLineNo;
#endif /* COMPILER_COMMON_H */
```
### main.h
```c
#ifndef MAIN_H
#define MAIN_H
#include "compiler_common.h"
#define code(format, ...) \
fprintf(yyout, "%*s" format "\n", scopeLevel << 2, "", __VA_ARGS__)
#define codeRaw(code) \
fprintf(yyout, "%*s" code "\n", scopeLevel << 2, "")
extern FILE* yyout;
extern FILE* yyin;
extern bool compileError;
extern int scopeLevel;
int yyparse();
int yylex();
int yylex_destroy();
void popStackObject();
void pushStackObject(ObjectType type, char* name);
void pushScope();
void dumpScope();
void createFuncSig(char* name);
void catFuncSig(char* name, ObjectType type, bool arr);
void createFunction(ObjectType type, char* funcName);
void loadOperation(char* name);
void stdoutPrint();
void returnOperation();
void functionEnd();
void objectExpBinary(char op);
void objectNegExpression();
void objectExpBoolean(int op);
#endif
```
### main.c
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#define WJCL_LINKED_LIST_IMPLEMENTATION
#include "main.h"
#define WJCL_HASH_MAP_IMPLEMENTATION
#define STACK_SIZE 100
#define FUNC_SIG_SIZE 200
#define debug printf("%s:%d: ############### debug\n", __FILE__, __LINE__)
#define iload(var) code("iload %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define lload(var) code("lload %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define fload(var) code("fload %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define dload(var) code("dload %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define aload(var) code("aload %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define istore(var) code("istore %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define lstore(var) code("lstore %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define fstore(var) code("fstore %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define dstore(var) code("dstore %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define astore(var) code("astore %" PRId64 " ; %s", (var)->symbol->addr, (var)->symbol->name)
#define ldz(val) code("ldc %d", getBool(val))
#define ldb(val) code("ldc %d", getByte(val))
#define ldc(val) code("ldc %d", getChar(val))
#define lds(val) code("ldc %d", getShort(val))
#define ldi(val) code("ldc %d", getInt(val))
#define ldl(val) code("ldc_w %" PRId64, getLong(val))
#define ldf(val) code("ldc %.6f", getFloat(val))
#define ldd(val) code("ldc_w %lf", getDouble(val))
#define ldt(val) code("ldc \"%s\"", getString(val))
const char* objectTypeName[] = {
[OBJECT_TYPE_UNDEFINED] = "undefined",
[OBJECT_TYPE_VOID] = "void",
[OBJECT_TYPE_BOOL] = "bool",
[OBJECT_TYPE_BYTE] = "byte",
[OBJECT_TYPE_CHAR] = "char",
[OBJECT_TYPE_SHORT] = "short",
[OBJECT_TYPE_INT] = "int",
[OBJECT_TYPE_LONG] = "long",
[OBJECT_TYPE_FLOAT] = "float",
[OBJECT_TYPE_DOUBLE] = "double",
[OBJECT_TYPE_STR] = "string",
};
const char* objectJavaTypeName[] = {
[OBJECT_TYPE_UNDEFINED] = "V",
[OBJECT_TYPE_VOID] = "V",
[OBJECT_TYPE_BOOL] = "Z",
[OBJECT_TYPE_BYTE] = "B",
[OBJECT_TYPE_CHAR] = "C",
[OBJECT_TYPE_SHORT] = "S",
[OBJECT_TYPE_INT] = "I",
[OBJECT_TYPE_LONG] = "J",
[OBJECT_TYPE_FLOAT] = "F",
[OBJECT_TYPE_DOUBLE] = "D",
[OBJECT_TYPE_STR] = "Ljava/lang/String;",
};
char* yyInputFileName;
bool compileError;
int scopeLevel = -1;
int currScopePointer = -1;
int stackPointer = -1;
int variableAddress = -1;
char funcSig[FUNC_SIG_SIZE] = "";
bool hasReturn = false;
int cmpLabel = 0;
ObjectType assignVariableType;
// stack
Object stack[STACK_SIZE];
// locals (Symbol Table)
Object symbolTable[10][10];
// 存現在的 function 的資訊
Object currFunc;
void setFunc(ObjectType type, char* funcName) {
currFunc.type = (strcmp(funcName, "main") == 0 ? OBJECT_TYPE_VOID : type);
currFunc.symbol = malloc(sizeof(SymbolData));
currFunc.symbol->name = funcName;
currFunc.symbol->func_sig = funcSig;
}
void clearFunc() {
currFunc.type = OBJECT_TYPE_UNDEFINED;
free(currFunc.symbol);
strcpy(funcSig, "");
}
void popStackObject() {
stack[stackPointer].type = OBJECT_TYPE_UNDEFINED;
free(stack[stackPointer].symbol);
stackPointer--;
}
void pushStackObject(ObjectType type, char* name) {
stackPointer++;
stack[stackPointer].symbol = malloc(sizeof(SymbolData));
stack[stackPointer].type = type;
stack[stackPointer].symbol->name = name;
}
void createFuncSig(char* name) {
strcat(funcSig, name);
strcat(funcSig, "(");
}
void catFuncSig(char* name, ObjectType type, bool arr) {
if(arr)
strcat(funcSig, "[");
if(name != NULL) {
strcat(funcSig, ")");
if(strcmp(name, "main") == 0)
strcat(funcSig, "V");
else
strcat(funcSig, objectJavaTypeName[type]);
} else {
strcat(funcSig, objectJavaTypeName[type]);
}
}
void createFunction(ObjectType type, char* funcName) {
setFunc(type, funcName);
code(".method public static %s", funcSig);
code(".limit stack %d", 100);
code(".limit locals %d", 100);
}
void loadOperation(char* name) {
if(name == NULL)
return;
if(strcmp(name, "endl") == 0) {
pushStackObject(OBJECT_TYPE_UNDEFINED, name);
}
}
void stdoutPrint() {
if(stack[stackPointer].symbol->name != NULL) {
if (strcmp(stack[stackPointer].symbol->name, "endl") == 0) {
codeRaw("invokevirtual java/io/PrintStream/println()V");
}
} else {
code("invokevirtual java/io/PrintStream/print(%s)V", objectJavaTypeName[stack[stackPointer].type]);
}
popStackObject();
}
void returnOperation() {
if(strcmp(currFunc.symbol->name, "main") == 0 || currFunc.type == OBJECT_TYPE_VOID) {
codeRaw("return");
} else {
if(currFunc.type == OBJECT_TYPE_INT || currFunc.type == OBJECT_TYPE_BOOL) {
codeRaw("ireturn");
} else if(currFunc.type == OBJECT_TYPE_FLOAT) {
codeRaw("freturn");
} else if(currFunc.type == OBJECT_TYPE_LONG) {
codeRaw("lreturn");
} else if(currFunc.type == OBJECT_TYPE_DOUBLE) {
codeRaw("dreturn");
} else if(currFunc.type == OBJECT_TYPE_STR) {
codeRaw("areturn");
}
}
popStackObject();
hasReturn = true;
}
void functionEnd() {
if(!hasReturn)
codeRaw("return");
codeRaw(".end method");
while(stackPointer >= 0) {
popStackObject();
}
clearFunc();
}
// 好用的工具 : 給 ObjectType 和你要做的運算就可以幫你印出對應的 jasmin code
void printArithmetic(ObjectType type, char op) {
if(type == OBJECT_TYPE_BOOL || type == OBJECT_TYPE_CHAR || type == OBJECT_TYPE_INT) {
if(op == '+')
codeRaw("iadd");
else if(op == '-')
codeRaw("isub");
else if(op == '*')
codeRaw("imul");
else if(op == '/')
codeRaw("idiv");
else if(op == '%')
codeRaw("irem");
} else if(type == OBJECT_TYPE_FLOAT) {
if(op == '+')
codeRaw("fadd");
else if(op == '-')
codeRaw("fsub");
else if(op == '*')
codeRaw("fmul");
else if(op == '/')
codeRaw("fdiv");
} else if(type == OBJECT_TYPE_LONG) {
if(op == '+')
codeRaw("ladd");
else if(op == '-')
codeRaw("lsub");
else if(op == '*')
codeRaw("lmul");
else if(op == '/')
codeRaw("ldiv");
} else if(type == OBJECT_TYPE_DOUBLE) {
if(op == '+')
codeRaw("dadd");
else if(op == '-')
codeRaw("dsub");
else if(op == '*')
codeRaw("dmul");
else if(op == '/')
codeRaw("ddiv");
}
}
void objectExpBinary(char op) {
// 處理隱含轉型的問題
ObjectType resultType;
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
stack[stackPointer - 1].type = OBJECT_TYPE_FLOAT;
resultType = OBJECT_TYPE_FLOAT;
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
resultType = OBJECT_TYPE_INT;
}
printArithmetic(resultType, op);
popStackObject(stackPointer);
popStackObject(stackPointer);
pushStackObject(resultType, NULL);
}
void objectNegExpression() {
if(stack[stackPointer].type == OBJECT_TYPE_INT)
codeRaw("ineg");
else if(stack[stackPointer].type == OBJECT_TYPE_LONG)
codeRaw("lneg");
else if(stack[stackPointer].type == OBJECT_TYPE_FLOAT)
codeRaw("fneg");
else if(stack[stackPointer].type == OBJECT_TYPE_DOUBLE)
codeRaw("dneg");
}
void objectExpBoolean(int op) {
switch(op) {
case 1: // ">"
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("ifgt greaterThanLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmpgt greaterThanLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("greaterThanLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 2: // "<"
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("iflt lessThanLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmplt lessThanLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("lessThanLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 3: // ">="
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("ifge greaterThanOrEqualToLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmpge greaterThanOrEqualToLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("greaterThanOrEqualToLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 4: // "<="
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("ifle lessThanOrEqualToLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmple lessThanOrEqualToLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("lessThanOrEqualToLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 5: // "=="
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("ifeq equalToLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmpeq equalToLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("equalToLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 6: // "!="
if(stack[stackPointer - 1].type == OBJECT_TYPE_FLOAT || stack[stackPointer].type == OBJECT_TYPE_FLOAT) {
codeRaw("fcmpg");
code("ifne notEqualToLabel%d", cmpLabel);
} else if((stack[stackPointer - 1].type == OBJECT_TYPE_INT || stack[stackPointer - 1].type == OBJECT_TYPE_BOOL) \
&& (stack[stackPointer].type == OBJECT_TYPE_INT || stack[stackPointer].type == OBJECT_TYPE_BOOL)) {
code("if_icmpne notEqualToLabel%d", cmpLabel);
}
codeRaw("iconst_0");
code("goto endLabel%d", cmpLabel);
code("notEqualToLabel%d:", cmpLabel);
codeRaw("iconst_1");
code("endLabel%d:", cmpLabel);
cmpLabel++;
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 7: // "&&"
codeRaw("iand");
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 8: // "||"
codeRaw("ior");
popStackObject(stackPointer);
popStackObject(stackPointer);
break;
case 9: // "!"
codeRaw("iconst_1");
codeRaw("ixor");
popStackObject(stackPointer);
break;
default:
}
pushStackObject(OBJECT_TYPE_BOOL, NULL);
}
int main(int argc, char* argv[]) {
char* outputFileName = NULL;
if (argc == 3) {
yyin = fopen(yyInputFileName = argv[1], "r");
yyout = fopen(outputFileName = argv[2], "w");
} else if (argc == 2) {
yyin = fopen(yyInputFileName = argv[1], "r");
yyout = stdout;
} else {
printf("require input file");
exit(1);
}
if (!yyin) {
printf("file `%s` doesn't exists or cannot be opened\n", yyInputFileName);
exit(1);
}
if (!yyout) {
printf("file `%s` doesn't exists or cannot be opened\n", outputFileName);
exit(1);
}
codeRaw(".class public Main");
codeRaw(".super java/lang/Object");
yyparse();
printf("Total lines: %d\n", yylineno);
fclose(yyin);
yylex_destroy();
return 0;
}
```
### compiler.y
```c
/* Definition section */
%{
#include "compiler_util.h"
#include "main.h"
int yydebug = 1;
%}
/* Variable or self-defined structure */
%union {
ObjectType var_type;
bool b_var;
char c_var;
int32_t i_var;
int64_t l_var;
float f_var;
double d_var;
char *s_var;
Object obj_val;
// LinkList<Object*>
//LinkedList* array_subscript;
}
/* Token without return */
%token COUT
%token SHR SHL BAN BOR BNT BXO ADD SUB MUL DIV REM NOT GTR LES GEQ LEQ EQL NEQ LAN LOR
%token VAL_ASSIGN ADD_ASSIGN SUB_ASSIGN MUL_ASSIGN DIV_ASSIGN REM_ASSIGN BAN_ASSIGN BOR_ASSIGN BXO_ASSIGN SHR_ASSIGN SHL_ASSIGN INC_ASSIGN DEC_ASSIGN
%token IF ELSE FOR WHILE RETURN BREAK CONTINUE
/* Token with return, which need to sepcify type */
%token <var_type> VARIABLE_T
%token <b_var> BOOL_LIT
%token <c_var> CHAR_LIT
%token <i_var> INT_LIT
%token <f_var> FLOAT_LIT
%token <s_var> STR_LIT
%token <s_var> IDENT
/* Nonterminal with return, which need to sepcify type */
%type <obj_val> Expression BinaryExpression BoolExpression
//%type <array_subscript> ArraySubscriptStmtList
%right VAL_ASSIGN ADD_ASSIGN SUB_ASSIGN MUL_ASSIGN DIV_ASSIGN REM_ASSIGN BAN_ASSIGN BOR_ASSIGN BXO_ASSIGN SHR_ASSIGN SHL_ASSIGN
%left LOR
%left LAN
%left BOR
%left BXO
%left BAN
%left EQL NEQ
%left GTR LES GEQ LEQ
%left SHR SHL
%left ADD SUB
%left MUL DIV REM
%nonassoc INC_ASSIGN DEC_ASSIGN NOT BNT UMINUS
/* Yacc will start at this nonterminal */
%start Program
%%
/* Grammar section */
Program
: { pushScope(); } GlobalStmtList { dumpScope(); }
| /* Empty file */
;
GlobalStmtList
: GlobalStmtList GlobalStmt
| GlobalStmt
;
GlobalStmt
: DefineVariableStmt
| FunctionDefStmt
;
DefineVariableStmt
: VARIABLE_T IDENT VAL_ASSIGN Expression ';'
;
/* Function */
FunctionDefStmt
: VARIABLE_T IDENT { createFuncSig($2); } '(' FunctionParameterStmtList ')' { catFuncSig($2, $1, false); createFunction($1, $2); } '{' StmtList '}' { functionEnd(); dumpScope(); }
;
FunctionParameterStmtList
: FunctionParameterStmtList ',' FunctionParameterStmt
| FunctionParameterStmt
| /* Empty function parameter */
;
FunctionParameterStmt
: VARIABLE_T IDENT { catFuncSig(NULL, $1, false); }
| VARIABLE_T IDENT '[' ']' { catFuncSig(NULL, $1, true); }
;
/* Scope */
StmtList
: StmtList Stmt
| Stmt
;
Stmt
: ';'
| COUT CoutParmListStmt ';'
| RETURN Expression ';' { returnOperation(); }
| RETURN ';' { returnOperation(); }
;
CoutParmListStmt
: CoutParmListStmt SHL { codeRaw("getstatic java/lang/System/out Ljava/io/PrintStream;"); } Expression { stdoutPrint(); }
| SHL { codeRaw("getstatic java/lang/System/out Ljava/io/PrintStream;"); } Expression { stdoutPrint(); }
;
BinaryExpression
: Expression ADD Expression { objectExpBinary('+'); }
| Expression SUB Expression { objectExpBinary('-'); }
| Expression MUL Expression { objectExpBinary('*'); }
| Expression DIV Expression { objectExpBinary('/'); }
| Expression REM Expression { objectExpBinary('%'); }
| SUB Expression %prec UMINUS { objectNegExpression(); }
;
BoolExpression
: Expression GTR Expression { objectExpBoolean(1); }
| Expression LES Expression { objectExpBoolean(2); }
| Expression GEQ Expression { objectExpBoolean(3); }
| Expression LEQ Expression { objectExpBoolean(4); }
| Expression EQL Expression { objectExpBoolean(5); }
| Expression NEQ Expression { objectExpBoolean(6); }
| Expression LAN Expression { objectExpBoolean(7); }
| Expression LOR Expression { objectExpBoolean(8); }
| NOT BoolExpression %prec NOT { objectExpBoolean(9); }
| BOOL_LIT { code("%s", ($1 == 0 ? "iconst_0" : "iconst_1")); objectExpBoolean(0); }
;
Expression
: '(' Expression ')' { $$ = $2; }
| BinaryExpression
| BoolExpression
| IDENT { loadOperation($1); }
| STR_LIT { code("ldc \"%s\"", $1); pushStackObject(OBJECT_TYPE_STR, NULL); }
| INT_LIT { code("ldc %d", $1); pushStackObject(OBJECT_TYPE_INT, NULL); }
| FLOAT_LIT { code("ldc %f", $<f_var>1); pushStackObject(OBJECT_TYPE_FLOAT, NULL); }
| CHAR_LIT { code("bipush %d", (int)$<c_var>1); pushStackObject(OBJECT_TYPE_CHAR, NULL); }
;
%%
/* C code section */
```
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