first steps:
word r0,l1,l2,l3 unkown ro,r1,l1,l2,l3
ro:=@this.test r0:=@this.test
load.r ro; $stack1 = r0
$stack1 = $r1
specialinvoke <java.lang.Object: void <init>()> specialinvoke <java.lang.Object: void <init>()>
r0:=@parameter0: java.lang.String[]; r0:=@parameter0: java.lang.String[];
push1 $stack0 = 1
store.i l1 l1 = $stack0
push2 $stack0 = 2
store.i l2 l2 = $stack0
load.i l1 $stack0 = l1
load.i l2 $stack0 = l2
add.i $stack0 = $stack0 + $stack0
staticget <java.lang.System: java.io.printStream Out> staticget <java.lang.System: java.io.printStream Out>
load.i l3 l3 = $stack0
virtualinvoke <java.io.printStream: void println(int)>; virtualinvoke <java.io.printStream: void println(int)>;
next steps:
unkown ro,r1,l1,l2,l3 unkown ro,$stack1#1,r1,#stack1#2,l1,$stack0#1,l2,$stack0#2,l3,$stack0#3
r0:=@this.test r0:=@this.test
$stack1= r0 $stack1#1 = r0
$stack1 = $r1 $stack1#2 = $r1
specialinvoke <java.lang.Object: void <init>()> specialinvoke <java.lang.Object: void <init>()>
r0:=@parameter0: java.lang.String[]; r0:=@parameter0: java.lang.String[];
$stack0 = 1 $stack1#1 = 1
l1 = $stack0 l1 = $stack0#1 //等同于l1#1 = $stack1#1 ,如果后面的是#1可以不用写
$stack0 = 2 $stack0#1 = 2 //为了方便，后续的#1都省略了
l2 = $stack0 l2 = $stack0#2
$stack0 = l1 $stack0#1 = l1
$stack0 = l2 $stack0#2 = l2
$stack0 = $stack0 + $stack0 $stack0#3= $stack0#1 + $stack0#2
staticget <java.lang.System: java.io.printStream Out> staticget <java.lang.System: java.io.printStream Out>
l3 = $stack0 l3 = $stack0#3
virtualinvoke <java.io.printStream: void println(int)>; virtualinvoke <java.io.printStream: void println(int)>;
next steps:
unkown ro,$stack1#1,l1,$stack0#1,l2,$stack0#2,l3,$stack0#3 unkown ro,$stack1#1
byte l1,$stack0#1,l2,$stack0#2,l3,$stack0#3
r0:=@this.test r0:=@this.test
$stack0#1 = r0 $stack0#1 = r0
specialinvoke <java.lang.Object: void <init>()> specialinvoke <java.lang.Object: void <init>()>()
r0:=@parameter0: java.lang.String[]; r0
$stack0#2 = $r1 $r1
$stack0#1 = 1 l1
l1 = $stack0#1 l1 = 1
$stack0#1 = 2 l2
l2 = $stack0#2 l2 = 2
$stack0#1 = l1 r0:=@parameter0: java.lang.String[];
$stack0#2 = l2 l3
$stack0#3 = $stack0#1 + $stack0# 2 l3 = l1 + l2
staticget <java.lang.System: java.io.printStream Out> $r1 = <java.lang.System: java.io.printStream Out>
l3 = $stack3
virtualinvoke <java.io.printStream: void println(int)>; virtualinvoke $r1.<java.io.printStream: void println(int)>(i2);
next steps:
unkown ro,$stack0#1
byte l1,$stack1#1,l2,$stack2#1,l3,$stack#1
r0:=@this.test test r0
$stack0#1 = r0 r0:=@this:test
specialinvoke <java.lang.Object: void <init>()> () specialinvoke <java.lang.Object: void <init>()>()
r0 java.lang.String[] r0;
$r1 java.io.PrintStream $r1
l1 byte l1;
l1 = 1 l1 = 1;
l2 byte l2;
l2 = 2 l2 = 2;
r0:=@parameter0: java.lang.String[]; r0:=@parameter0: java.lang.String[];
l3 int l3;
l3 = l1 + l2 l3 = l1 + l2;
$r1 = <java.lang.System: java.io.printStream Out> $r1 = <java.lang.System: java.io.printStream Out>
virtualinvoke $r1.<java.io.printStream: void println(int)>(i2); virtualinvoke $r1.<java.io.printStream: void println(int)>(i2);
the end we get :
public class test extends java.lang.Object
{
public void <init>()
{
test r0;
r0 := @this: test;
specialinvoke r0.<java.lang.Object: void <init>()>();
return;
}
public static void main(java.lang.String[])
{
java.lang.String[] r0;
byte l1, l2;
int l3;
java.io.PrintStream $r1;
r0 := @parameter0: java.lang.String[];
l1 = 1;
l2 = 2;
l3 = l1 + l2;
$r1 = <java.lang.System: java.io.PrintStream out>;
virtualinvoke $r1.<java.io.PrintStream: void println(int)>(i2);
return;
}
}
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