am-lang-compiler

What is am-lang

"AmLang" is a new programming language mainly targetted at niche platforms like AmigaOS (Also playing with MorphOS, Nintendo Wii Homebrew, Raspberry Pi Pico, Atari TOS). Read more about it below.

Am Lang Features

AmLang is inspired by other programming languages like Kotlin, Java, C#, TypeScript, Swift etc.

• ARC (automatic reference counting) and GC (garbage collection) combined.
• classes
• interfaces
• namespaces
• suspendable functions
• lambda expressions
• native c support
• exceptions (try,catch,throw)
• and a lot more.

There are still some major features missing, like for example for-loops. I have to use while loops until I prioritize for-loops 🙂 Currently it compiles only on Mac/Linux/Windows (using Docker), but one of the ultimate goals is to re-write the compiler in its own language. The compiler doesn't generate any machine code on its own, it writes C-code and lets GCC make the machine code. Performance-wise it's not as efficient as C (obviously?), but one can easily let c/asm do the heavy lifting and use this for orchestration.

Requirements

• Java 11+
• Docker
• Windows, MacOS, Linux

Quick start (for AmigaOS3):

A simple way to get started is in the works. Until then:

Create the following files: src/Startup.aml

namespace Am.Examples {    

    class Startup {
        import Am.Lang
        import Am.Lang.Diagnostics

        static fun main() {
            "Hello World".println()
        }
    }
}

package.yml

    name: AmigaOS3Example
    version: 1.0
    description: "Example for AmigaOS3"

Then run the compiler in the project folder:

java -jar amlc.jar .

Code example

The following code fills up a HashSet2 (will be renamed to HashSet) and times it.

namespace Am.Examples {    

    class CoreStartup {
        import Am.Lang
        import Am.Lang.Diagnostics
        import Am.IO
        import Am.IO.Networking
        import Am.Collections

        static fun main() {
            var set = new HashSet2<Int>()
            var startDate = Date.now()
            var i = 1
            var max = 1000000
            ("Adding " + max.toString() + " key-value pairs to a HashSet on an emulated 020").println()
            while(i <= max) {                
                set.add(i)
                i++
            }

            var endDate = Date.now()

            ("Time: " + (endDate.getValue() - startDate.getValue()).toString() + "ms").println()

            var testVal = 4
            var iset = set as Set<Int>
            var hasValue = iset.has(testVal)

            if (hasValue) {
                "found".println()
            } else {
                "not found".println()
            }
        }
    }
}

Try AmLang for yourself

We've made a web-based playground (IDE) that you can try here: https://www.kelson.no/tools/amlangide