C64 Studio is an assembly development environment which is dependent on VICE. You can write assembly code and test this with the VICE emulator. In this version: Improvements for BASIC, SBASIC, BASIC65, ZX81 BASIC, Assembler, Disassembler, GraphicScreenEditor, CharsetScreenEditor, SpriteEditor, File manager, D81, Solution Explorer, Source code commenting, TZX and TASM.