Gopher2600 - detail of live disassembly decoding
Detail view of the debugger showing the disassembly view and and the 6507 pinout window.
This video shows the disassembly being created instruction-by-instruction and even byte-by-byte when the debugging quantum is changed to "Colour Clock". (The emulation is always updated at the colour clock level but changing the debugging quantum means we interrupt the emulation at that frequency and not after every instruction.)
The Bus section of the Pinout window shows the state of the address and data bus at any time. In the case of a real cartridge, as this case is, these are the actual values that the cartridge is "seeing"