RackNES 1.1.2

• resolve potential memory leak: deallocate emulator and backup state when module is removed from the rack

RackNES 1.1.1

• fix issue where backup / restore was freezing the emulation state
  • use JSON to backup/restore instead of C++ copy constructors

using JSON has certain implications on overhead, but the C++ copy constructors were causing the emulator to glitch and freeze for mappers 1 and 2. By using a single line of backup/restore for this feature, as well as serialization, only one persistence mechanism needs to be tested. Performance evaluation is necessary to determine whether the C++ copy constructors are quicker or slower than using the JSON structures for backup/restore. If they are no faster, there is no reason to support them really.

RackNES 1.1.0

• clock controls CPU rate directly
• OS dialogs shown when ROMs fail to load
• fix clock to properly output pulses at the frame rate (PW=50%)

RackNES 1.0.0

• support for the first four cartridge mappers
• 2 player support
• frame-rate-based clock control
• clock output based on frame-rate
• APU that works at all sample rates