Assembling jasmin class leads to inverted operators and comparisons

Question

When I try assembling my test.j jasmin file with the commandline java -jar Jasmin.jar test.j it generates the test.class file without any errors. All the code is the same except for the operators and comparisons, all my + will become -, the == all become != and so on and so forth.

My test.j jasmin file adds 2 numbers and checks if these are equal to 7, if true print something, else print something else. At the end it will always print one line of text.

test.j file:

.class public test
.super java/lang/Object

.method public static main([Ljava/lang/String;)V
.limit stack 5
.limit locals 3

ldc 5
ldc 3
isub
ldc 7
if_icmpne L1
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "It is not bigger"
invokevirtual java/io/PrintStream/println(Ljava/lang/String;)V
goto LE1
L1:
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "It is bigger"
invokevirtual java/io/PrintStream/println(Ljava/lang/String;)V
LE1:
getstatic java/lang/System/out Ljava/io/PrintStream;
ldc "this will always print"
invokevirtual java/io/PrintStream/println(Ljava/lang/String;)V
return
.end method

Assembled test.class, the 5 - 3 != 7 should be 5 + 3 == 7 here:

public class test {
    public static void main(String[] var0) {
        if (5 - 3 != 7) {
            System.out.println("It is not bigger");
        } else {
            System.out.println("It is bigger");
        }

        System.out.println("this will always print");
    }
}

Answer 1

The jasmin code you posted contains isub, which is for subtraction, not addition. The assembler is correct. You are outputting assembly that does not match your intended behavior.