Executing the resulting program outputs the desired machine language into a desired file format. It is very easy to set up, and in the middle, there’s a nice C program that emits machine code.

In assembly language “put 1 in register 0” is written like this: “movs r0, #1”. So when the assembler see a “movs” operation it can generate the right machine code, depending on the ...

The target program is a hard drive test, so part of it isn’t just knowing assembly but understanding how to interface with the machine. That was pretty common, too.

However, there is hardly any mention of Java and assembly language code working together. In an earlier article I showed how assembly language programs can be called from Java applications.