[ATARI] Altirra x86 i x64 2.70 test 9

[1] @ !!! Czwartek, 23 Kwietnia 2015 21:51 CET [23-04-2015 21:43 CET]

[ATARI] Altirra x86 i x64 2.70 test 9
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Nowa, testowa wersja Altirry autorstwa Avery (Phaeron) Lee, obecnie najlepszego emulatora małych, ośmiobitowych mikrokomputerów firmy ATARI.

Atari XE Altirra:Necromancer:Synapse Software:1982
Necromancer Synapse Software 1982

Altirra v2.70 test 9  [21.03.2015]

features added

  • Debugger: bx (break on expression) can now create tracepoints (-n).
  • Display: Improved performance of D3D11 vsync code.

bugs fixed

  • Debugger: Fixed crash when canceling edit of watch expression.
  • Disk: Data checksum errors during SIO bus transfers now result in a NAK instead of Error.
  • HDevice: Fixed regression in NOTE/POINT commands.

authors comment:

  • I took another look at the ATBasic source and managed to free up about 150 bytes for some revisions. V1.40 is attached and has three changes:
    • Fixed a bug where FOR X + GOSUB + FOR X was acting incorrectly. In Atari BASIC, FOR statements will pop the runtime stack down to the previous invocation of FOR with the same variable, but not if there is a GOSUB in between. This actually broke a program called Escape From Epsilon.
    • USR(100000) now properly throws an error.
    • Basic XL's IF..ELSE..ENDIF is now supported. This took a lot more space than I expected, partly due to the need for a special case in the parser to handle ENDIF, and because of the need to parse past expressions to check for THEN keywords in nested IFs. No indenting during LISTing, though.
  • Hopefully I didn't break anything in the process.
  • In the emulator:
    • Partial fix for bug in ATOS where positioning the cursor out of bounds would cause infinite errors from E:, which is supposed to push the cursor back in bounds.
    • Fixed regression in H: where the NOTE/POINT commands stopped working, due to the new device framework not handling ICAX3 properly.
    • Data checksum errors during disk transfers now give a NAK instead of a device error, as the real 1050 does.
    • The debugger's break on expression (bx) command can now create tracepoints like bp, with -n.
    • Fixed crash in watch window when canceling edit.
    • Direct3D 11 display driver now supports DXGI 1.3 waitable vsync. This gives better vsync stability in windowed mode at lower CPU usage than is possible with D3D9. Note that the D3D11 driver is disabled by default and has to be enabled in Options, and DXGI 1.3 is only available starting with Windows 8.1.
  • Regarding emulation vs. real hardware, personally I'd like that discussion to not get too far out of hand here, if for no reason other than that these threads already tend to get way too long even without tangents. That having said, the goal of Altirra is to be able to substitute for real hardware but not to obsolete it, and one of the main strategies for achieving that is high emulation accuracy. Testing on real hardware is essential but not a panacea, simply because few people have all of the hardware combinations that are necessary for full testing coverage: NTSC/PAL/SECAM, floating data bus vs non-floating data bus, OS-B vs. XL/XE OS vs. custom OS, stock memory vs. expanded memory, different makes of 6502, 65816, and physical floppy drives. That's why it emulates a lot of hardware behaviors that have no practical use for the sake of accuracy.
→ [ATARI] Altirra x86 i x64 2.70 test 40
Atari Altirra:Rescue on Faractalus
Rzadki widok na Atari - loader jednej z najbardziej imponujacych gier "Rescue on Faractalus".

Altirra v2.70 test 40  [01.12.2015]

features added

  • UI: Portable mode now stores relative paths for paths above the program directory on the same drive root.

bugs fixed

  • 65C816: Fixed WAI releasing execution too early on IRQs in high speed mode.

authors comment:

Another attempted fix for runtime stack issue in ATBasic, and fix for one color clock glitch with mid-screen GTIA mode 10 switch that affected Fractalus.

→ [ATARI] Altirra x86 i x64 2.70 test 36

Altirra v2.70 test 36  [22.11.2015]

changelog: nw

 authors comment:

Finished up this round of work on the profiler. It now has some documentation in the help file, fixed a bug that caused instruction counts to be wrong in multi-frame profiles, and expanded the PC triggering modes. You can now set an end PC address as well as a start PC address, or just have the profiler end the frame when the current function exits. For instance, you can profile the VBI handler by using a start PC address expression of "dw vvblki" and stopping after the function. Frames can also be triggered via .profile_start/endframe commands in the debugger.
The help file also has documentation on how to set up networking for DragonCart emulation. I've attached the page in case any Linux gurus could chime in about the VXLAN tunnel setup instructions, or just have a laugh at how bad the instructions are. There's still a lot of devices undocumented, but documentation is so much work....
ATBasic has been updated to 1.47. I added a guard patch in case AFP decides to return a bogus number (yay), and moved the point where the runtime stack is fixed/pinned from start of execution to first NEXT/RETURN. This should fix the case that StefanD hit where immediate mode statements couldn't be run because the interpreter kept throwing GOSUB-gone errors.

→ [ATARI] Altirra x86 i x64 2.70 test 35
Atari Altirra:Sabouteur:Remade:2015:Mariusz:Wojcieszak
Jeszcze jeden przykład, że brak wielkich tytułów dla ATARI zawdzięczamy nie skromnymi możliwościami tej platformy, tylko "głupawej" polityce licencyjnej ATARI. Saboteur był kiedyś symbolem tego, w co nie zagra sobie posiadacz ATARI 800XL, dzięki pracy Mariusza Wojcieszka (znanego doskonale z jego dokonań w projekcie MAME) możemy pograć w ten tytuł... bagatela prawie 30 lat temu. Wersja WIP końcowa będzie kolorowa.

Altirra v2.70 test 35  [18.11.2015]

features added

 

  • Profiler: Instruction-level data is now recorded even in function mode.
  • Profiler: Frame triggers can now be set to record multiple frames.

 authors comment:

Couple of additions to the profiler. It now handles high DPI better, and has support for setting triggers for denoting frame or main loop tick boundaries. This makes it easier to profile closely around temporary slowdowns and hitches. The frames are shown in a graph that allows selecting single frames or a range of frames by dragging.

profile-framegraph.png

Function mode now also collects instruction data so that the detailed view shows instruction samples instead of function samples. At some point the plan is to merge function and instruction modes and just have different views for the same run.

→ [ATARI] Altirra x86 i x64 2.70 test 34
Atari XE:XL:Altirra:Spiky Harold:Firebird:1986
Spiky Harold (Firebird, 1986)

Altirra v2.70 test 34  [04.11.2015]

features added

  • Debugger: Added @frame, @clk, and @cclk expression psuedovariables.

features added

  • Debugger: Fixed assembler not accepting TXA instruction.
  • Debugger: Assembler no longer uses the debugger's numeric base setting and always assumes decimal unless $ is prefixed before a number.
  • UI: Fixed firmware options not refreshing consistently in dialog.

 authors comment:

  • TXA assembler bug is now fixed.
  • Firmware options refreshing bug is now fixed.
→ [ATARI] Altirra x86 i x64 2.70 test 33
Atari XE/XL:Altirra:Gorf:Roklan Corporation:Bally Midway Manufacturing Co., Inc.:1982:
Gorf (Roklan Corporation, 1982)

Altirra v2.70 test 33  [24.10.2015]

features added

  • Debugger: Added %S format to .printf for high byte terminated strings.
  • Profiler: Added Basic block profiling mode.
  • Profiler: Added performance counter support.

features added

  • AltirraOS: Caps Lock now toggles in XL/XE mode.
  • Cartridge: Fixed random crash with Atrax SDX cartridge types.

 authors comment:

  • Found an issue in the Atrax SDX cartridge handling that could cause a crash.
  • AltirraOS XL/XE now implements Caps toggle.
  • .printf now supports %S for high byte terminated strings.
  • Added basic block and performance counter modes to profiler. Basic block mode groups instructions between branches and is a bit more granular than function mode. Performance counters can identify branches that should be reversed or instructions that cross pages frequently.
→ [ATARI] Altirra x86 i x64 2.70 test 32

Altirra v2.70 test 32  [10.10.2015]

features added

  • Simulator: Emulation is no longer paused while menus are open.

 authors comment:

  • Fix for the stuck key problem -- was due to a WM_KEYDOWN/WM_CHAR ordering problem that only showed up on some system configurations. Thanks to flashjazzcat for the in-depth testing. The raw key mode has also been changed so that only the last key registered continues the repeat instead of any key.
  • SAP type D playback is now supported. Matching NTSC files to NTSC systems or PAL-to-PAL is recommended, but the player will attempt to play mismatched files at the correct rate via a DLI hack. This may or may not work depending on whether the player uses VCOUNT and the PLAYER hook.
  • The SAP type R player now displays volume bars per channel.
  • There is now an option on the Tools menu to convert SAP files to Atari executables. The emulator does this internally when you boot a SAP file; this just lets you get at the executable directly. Bit of a warning: the executables require a MEMLO of $0800, so you'll need to boot them from a game DOS or similarly capable loader (e.g. AtariMax cartridge). The players autodetect NTSC/PAL ANTIC.
  • Added a hack to keep the emulation running while menus are displayed. We'll see how this works.

One gotcha on SAP files -- I am starting to find bugs in some of the SAP players. The Pitfall II player, for instance, reads uninitialized memory. Unfortunately, the byte it reads is SAVMSC+1, and it crashes because this byte is >= $0A when booting from the OS. This is due to the difference between the minimal Atari-like environment used by SAP players and the full environment when booting on real hardware.

→ [ATARI] Altirra x86 i x64 2.70 test 31
Atari Altirra: Revenge of Mutant Camel

Altirra v2.70 test 31  [04.10.2015]

features added

  • HLE: Added player for some SAP type B/C/R files.
  • Recorder: Added support for recording SAP type D files.

bugs fixed

  • Simulation: Added emulation of floating I/O memory bus on 800 hardware.

 authors comment:

  • test 31: Fixes a couple of crash bugs in the floating I/O bus feature, adds SAP type R recording support, and SAP type B/C/R playback. Too lazy to do type D at the moment as it requires turning off the OS ROM. This also prevents some type B/C files from loading when they try loading on top of where the player or OS lies, but many work.
  • test 30: Removes the non-functional green/blue parameters in the colors dialog and adds support for emulating the floating bus condition on the second I/O memory bus on the Atari 800. This is necessary to run the original version of WarGames on 800 hardware due to a rather nasty hardware check. Thanks to Farb for the test case. Emulating this is rather expensive, so it is opt-in via System > Memory Config > Floating I/O Bus. This also makes PEEK(49152) read the correct values in BASIC.
→ [ATARI] Altirra x86 i x64 2.70 test 29

Altirra v2.70 test 29  [30.09.2015]

features added

  • Audio: Sound output is auto-switched to 48KHz to reduce CPU usage if Windows is mixing at that rate.
  • Debugger: Execution history now shows high level emulation events.
  • Debugger: Added sw (search words), sa (search ATASCII), and si (search INTERNAL).
  • Input: Keyboard mapping is now customizable.

bugs fixed

  • ANTIC: Fix incorrect internal state after warm reset during WSYNC wait.
  • AltirraOS: XL/XE version now supports KEYREP.
  • ATBasic: Fixed bug with terminating EOLs being left in code if a warm reset happened during a filename-based I/O statement.
  • ATBasic: Fixed CLOAD/CSAVE not setting IRG mode consistently.
  • Debugger: Fixed length (Lxxx) arguments not accepting 10000 for $10000 bytes.
  • Debugger: Fixed crash with malformed read/write access range checks in breakpoint conditional expressions.
  • Disk: Improved accurate sector timing values for enhanced density disks.
  • Disk Explorer: Empty filenames are no longer allowed.
  • POKEY: Full keyboard scan emulation is now supported, including phantom key and debounce-off effects.
     

 

→ [ATARI] Altirra x86 i x64 2.70 test 23

Altirra v2.70 test 23  [28.08.2015]

  • Problem: I tested today 2.70-test22 with new CONTIKI and got an Altirra crash.
  • Fixed:

 

→ [ATARI] Altirra x86 i x64 2.70 test 22

Altirra v2.70 test 22  [25.08.2015]

changes:

  • Input: Because some broken axis mappings have been corrected, hand-edited input maps may need to be fixed up.

features added

  • Input: Dead zones and curves are now adjustable for game controllers.

bugs fixed:

  • Debugger: Up/down keys now work better in History when navigating search results.
  • Debugger: Fixed time wrapping bug in .pokey deferred timer reporting.
  • Input: Fixed inconsistent mappings between analog/digital interpretations of axes and between DirectInput and XInput.
  • Network: Fixed protocol handling bugs in emulated ARP and DHCP layers.
  • Network: Add support for tunneling over the VXLAN protocol.

authors comment:

Well, I sat down to play a bit of Kaboom!, and found that it was basically unplayable with an Xbox 360 controller... so some tweaks to the input code were required. After some work, I still suck at Kaboom!, but the controller input mappings are now straightened out and more tunable.

 

There is now a menu item Input > Input Setup that brings up a dialog where game controller input can be tuned. The dead zones for the 2D and 1D axes can be set, and more importantly, the dead zones can be set differently for analog input vs. digital input. This is useful because dead zones usually need to be bigger when mapping a stick to 4-way or 8-way D-pad input vs. using it for analog input. For analog mappings, there is now a "stiffness" option that allows a power curve to be applied, which can make fine control easier. For digital mappings, the conversion now uses an octant mapping, which allows a better hit zone for cardinal directions and directly going to diagonals.

 

There is no help for the dialog yet, so here's a cheat sheet:

The four input windows displayed are: left stick (axes 1-2), left trigger (axis 3), right stick (axes 4-5), right trigger (axis 6).
The black crosshair or line is the raw position.
The small dot is the adjusted position used for analog mappings, e.g. paddles. The analog dead zone is displayed as a gray disc. Adjust this to a reasonably low level that doesn't cause the game control to drift annoyingly when the stick is in the center. You'll notice that the dot is a bit off from the crosshair when the dead zone is non-zero -- this is intentional so that input ramps up smoothly from zero at the edge of the dead zone.
The red arrows are the directions triggered for digital mappings, e.g. joysticks. The digital dead zone (threshold) is the red circle. Adjust this up if the digital input is too sensitive or drifts at center; adjust it down if it is not responsive enough.

A few bugs in the mappings were also corrected -- IIRC, DirectInput had analog mappings upside down from digital mappings for analog sticks, and XInput had the triggers on different axis numbers for digital and analog mappings. This became pretty obvious with the visualization. You may need to adjust your input maps as a result. If you run into problems, let me know the mappings you're having problems with, i.e. Joystick, Up -> Left Stick Up, and whether you're using the XInput (Xbox 360) controller or not.

 

Other changes in this version:

Debugger: Improved keyboard navigation in the History pane when browsing search results.
DragonCart: Added support for a forwarded incoming UDP/TCP port pair from the host to the emulation network, fixed bugs in DHCP and ARP handling (Contiki IPCONFIG now works), fixed a number of bugs in the TCP stack, and added support for VXLAN tunneling. VXLAN tunneling allows the emulator to connect its internal emulation net to other systems that support the VXLAN protocol, which is essentially Ethernet over UDP. Linux and *BSD systems can connect to the emulation network this way if you futz with their firewall configurations, which allows the emulation to communicate with a real TCP/IP stack, and also allows the emulation network to be monitored with Wireshark.
 

 

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