[Asm2class-usage] [asm2class - asm2class usage] RE: Example of java assembly source

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//
//   Copyright (C) 2004  Boretti Mathieu
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation; either version 2 of the License, or
//   (at your option) any later version.
//
//   This program is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of the GNU General Public License
//   along with this program; if not, write to the Free Software
//   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//
// Solve the hanoi problem
//

//
// Define a class named "org.boretti.asm2class.example.hanoi"
//
Lorg/boretti/asm2class/example/hanoi; :
//
// Define the number of disk to use
//
- . $ START I 4
//
// Define a method named "main" with String [] as parameter and no 
// return value. This method is public and static
//
* . main ([Ljava/lang/String;)V :
    getstatic Lorg/boretti/asm2class/example/hanoi; START I
    iconst_0
    iconst_1
    iconst_2
    invokestatic Lorg/boretti/asm2class/example/hanoi; (IIII)V hanoi
    return

//
// Define how to translate disks
// 0:Nombre
// 1:From
// 2:To
// 3:Inter
//
* . hanoi(IIII)V :
            iload_0
            lookupswitch DEFAULT 0 : CASE0 1 : CASE1 2 : CASE2
CASE1 :	    iload_1
            iload_2
            invokestatic Lorg/boretti/asm2class/example/hanoi; (II)V translate
            goto CASE0
CASE2 :	    iload_1
            iload_3
            invokestatic Lorg/boretti/asm2class/example/hanoi; (II)V translate
            iload_1
            iload_2
            invokestatic Lorg/boretti/asm2class/example/hanoi; (II)V translate
            iload_3
            iload_2
            invokestatic Lorg/boretti/asm2class/example/hanoi; (II)V translate
            goto CASE0
DEFAULT :   iload_0
            iconst_m1
            iadd
            dup
            istore 4
            iload_1
            iload_3
            iload_2
            invokestatic Lorg/boretti/asm2class/example/hanoi; (IIII)V hanoi
            iload_1
            iload_2
            invokestatic Lorg/boretti/asm2class/example/hanoi; (II)V translate
            iload 4
            iload_3
            iload_2
            iload_1
            invokestatic Lorg/boretti/asm2class/example/hanoi; (IIII)V hanoi

CASE0 :     return

//
// Define how to translate a disk
//
* . translate(II)V :
    getstatic Ljava/lang/System; out Ljava/io/PrintStream;
    dup
    iload_0
    iconst_1
    iadd
    invokevirtual Ljava/io/PrintStream; (I)V print
    dup
    ldc "->"
    invokevirtual Ljava/io/PrintStream; (Ljava/lang/String;)V print
    iload_1
    iconst_1
    iadd
    invokevirtual Ljava/io/PrintStream; (I)V println
    return



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