NO$C64 Free download

EditByBrothersoft: Welcome to the C64 emulator with the biggest range of debugging functions! In the current version, the emulation has been improvements, and the debugging part makes no$c64 a must-have for professional C64 programmers (if any/alive).

Features
Emulates cpu, memory, video, keyboard, joysticks, timers. Supports single file cassette loading (.PRG or .P00 files). Local keyboard support. Fast boot and fast intro/memcopy mechanisms.
Fully featured debugger with breakpoints, symbolic debug info (labels), automatic I/O and Kernal disassembler comments, vram viewer, built-in assembler/disassembler supports native/nocash syntaxes, upload to real C64 function, help includes built-in C64 programming specs.

New in Version 1.1
Emulates Video Waitstates, improved vertical scrolling/timings, vertical border with optional sprites in border area, supports all stable Undocumented opcodes, emulates read-modify and page-wrap CPU glitches. Version 1.1 additionally includes C16, Plus/4, and VIC-20 emulation modes, about all of the C64 emulation/debugging features have been customized for these new emulation modes.

Requirements: No special requirements