SASM (SimpleASM) - simple Open Source crossplatform IDE for NASM, MASM, GAS, FASM assembly languages. In SASM you can easily develop and execute programs, written in NASM assembly language. Enter code ...

This assembler supports a simple syntax and basic functionality for creating 6502 programs. It is designed as a "lower-level" assembler that strives to stay as close to machine language (ML) as ...