CCS64
5.7#14 in commodore 64 emulators$30 one-timeLinuxWindows
Visit| Fact | CCS64 | TRX64 |
|---|---|---|
| Debugging | Features include a machine-code monitor, backward walk tracing, and replay of up to 60 minutes of emulation history. | It provides rewind, byte-exact reverse stepping, write tracking, observers, traces, marks, and sandboxes for reverse engineering. |
CCS64 suits people who want to run Commodore 64 software on a PC, work with several C64 media formats, or use debugging and recording tools.
You want what its maker publishes above — check its page for the details.