Avery Lee's Altirra (a newer Atari 8-bit emulator) was updated yesterday. It supports the Atari 800, 800XL, and 130XE machines.
Here's what's new in Altirra 1.2:
features added
- Debugger: Added memory pane.
- Debugger: Shift+F11 is now a shortcut for Step Out.
- Debugger: History window now supports the mouse wheel.
- GTIA: Added artifacting support.
- UI: Cursor auto-hides when over display pane.
- UI: Added window pane layout saving.
- UI: Basic support for an Atari ST mouse in port 2.
- UI: Added more keyboard mappings.
- Simulator: Added initial save state support.
- Simulator: Added option to pause when not the active application.
- CPU: Initial 65C02 and 65C816 support.
bugs fixed
- Simulator: Fixed RUNAD handling in executable loader.
- Simulator: Fixed incorrect TRIG3 cartridge sense on launch.
- UI: Tweaked aspect ratio constants.
- UI: Fixed some bugs with pane undocking.
- ANTIC: Added missing address wrapping (fixes hang loading Bounty Bob).
- ANTIC: Fixed VSCROL timing to acccommodate more mode line extension tricks.
- ANTIC: Fixed low bits in NMIST register.
- POKEY: Tweaked hi-pass to sound better.
- POKEY: Implemented fast pot scan mode.
- POKEY: Two-tone serial mode now affects timer 1/2 sound output.
- Debugger: Breakpoints can now be seen on the active line.
- Debugger: Fixed early stop when trying to Step Out across a PLA or PLP instruction.
- Debugger: CPU status traces on single-step use the instruction PC rather than the raw PC.
- HLE: Fixed black status pane in Pole Position due to incorrect attract mode handling.
- HLE: Fixed startup path problems that prevented SpartaDOS X from starting.
- HLE: Screen handler now adjusts user memory limit.
- HLE: Fixed length return value bug in CIO put characters command.
- HLE: Control codes now work with S:.
- Disk: Fixed CIO return codes for H: handler.
- Cartridge: Cart bank is now reset on cold reset.
- Cartridge: Fixed banking and recognition problems with MaxFlash 1M cartridge format.
- CPU: Added option to halt on BRK instructions.
- GTIA: Fixed nasty bug where P/M collisions got messed up whenever the simulator dropped a frame.
- GTIA: Fixed behavior of sprites when repositioned during active region.
- GTIA: Implemented text blink and vertical reflect bits.
- GTIA: Fixed low bit in PAL register in NTSC mode.
