AS is a portable macro cross assembler for a variety of microprocessors and -controllers. Though it is mainly targeted at embedded processors and single-board computers, you also find CPU families in the target list that are used in workstations and PCs.
AS is completely free, i.e. you may use it for any commercial or non-commercial purpose without having to pay for it. If your really like AS, I encourage you to either send a bit of money to Greenpeace or a bottle of your favourite wine to me. If you want to integrate AS or parts of it into other projects, please contact me; since I really appreciate GNU and its targets, I think that someone who uses parts of AS or extends it should return something into the "freeware pool"; it's just a matter of fairness!
You may already have noticed that I did not pay much attention to the outer appearance of these pages; The reasons are manifold: