[TI99] Classic99 388 (2015-12-22)

[1] @ Niedziela, 3 Stycznia 2016 01:23CET

[TI99] Classic99 388 (2015-12-22)

Pojawiła się aktualizacja emulatora Classics99 udającego komputer firmy TEXAS INSTRUMENT TI-99/4A . 


Classic Pricess & Frogs
Classic:Princess & Frogs


  • F18A palette fix (Thanks to Rasmus!)
  • VDP timing tweak
  • new debugger command for the command window: "DISASM=," will write a disassembly of the specified range to the file "disasm.txt" in the current working folder
  • new breakpoint option: Lxxxx=# - logs all writes to address 'xxxx' to disk file # (1-9). Disk files are just binary dumps of data and named "dump#.bin" -- this allows up to 9 simultaneous writes.
→ NOWSZY [TI99] Classic99 399.004 12/10/2018
E.T. (1982, TI) @ Gamebase

2018-10-13 v399.004

  • reset more of CRU on menu-reset
  • add 9901 timer to the debug register panel
  • don't reset the 9901 timer every time you leave timer mode (fix for CamelForth)
  • more disk DSR warnings (hate that disk DSR so much...)
  • allow the disk corruption break option to catch the DSR warnings too
  • update manual for 9901 line


  • fiddled with AVI audio, but no improvements. AVIs updated to 60hz otherwise.
  • fix strange speedups - code that read the VDP status register was giving about 50% bonus cycles to the VDP. The more often you read it, the faster you went ;)
  • change waitable timer to a smaller value
  • remove the forced time on CPU_MAXIMUM. Now it actually runs maximum speed. And stays in sync.
  • add some comments to remind myself what the heck I was thinking in the 'full frame' update for overdrive
→ NOWSZY [TI99] Classic99 399.2 18/08/2018
Robotron 2049 (@GameBase)


  • Added hotkeys for Paste (control-F1), Debugger (control-Home), and copy screen (Control-F2)
  • added copy screen function (hold SHIFT for BASIC offset)
  • added Tape menu and added STOP and PLAY functions (sorry, not tested)
  • debugger adds view->ASCII Add Screen Offset for BASIC checkbox (not saved)
  • fix display of active GRAM pages when opening dialog
  • 32MB AMS implemented - enabled it for now (we already used to reserve 16MB as it was)
  • re-arranged VDP gettables to be more convenient and less redundant
  • added NOCR or NOLF options to clipboard - if you open it as "CLIP.NOLF" or "CLIP.NOCR", automatic line endings will NOT be appended, you must add them yourself. NOCR and NOLF are identical, only one may be specified, and you can use either CR (13) or LF (10) when you write.
  • fix opening new files in APPEND mode for image disks and FIAD disks - should work okay now
  • → NOWSZY [TI99] Classic99 399a 20/17/02/2018


    • Fix build options to work on Windows XP again


    • updated manual
    • updated to Visual Studio 2017
    • added CS1 read support
    • flagged manifest as hidpi aware
    • fixes for 9901 timer handling, found via CS1 in BASIC and EasyBug
    • fix for "windowshade" mode where Classic99 started as just a title bar
    • allow debugger to write more than 1 or 2 bytes at a time (to CPU, VDP or GROM)
    • display last accessed GROM address next to the hardware register
    • fix current directory changing when breakpoints were loaded or saved
    • allow an interrupt to trigger immediately even if there aren't quite enough cycles left
    • fix VDP scanlines to draw more correctly regardless of such things as overdrive and breakpoint
    • add 'unsupported operation' debug to the file handlers so they don't silently fail when it's deliberately not supported
    → NOWSZY [TI99] Classic99 398 04/09/2017


    • Allow mid-instruction VDP updates


    • make the breakpoint on disk header corruption an option in the debugger menu (off by default)
    • NV file option ('N') is now allowed for cartridge memory space in non-banked cartridges only
    • minimemory RAM is now non-volatile (weakly tested)
    • emulator now sets the current folder to the same as classic99.exe by default


    → NOWSZY [TI99] Classic99 396 21/07/2017


  • Fix for reading status of PROGRAM file images
  • Related code shuffled
  • → NOWSZY [TI99] Classic99 395 11/07/2017


    • added cartridge eject to the menu
    • added CPU and GPU separate debug options (not certain they are 100%)
    • fix certain reset issues by enabling a forced breakpoint
    • throttling updates to improve consistency
    • added tests for VRAM file buffers to aid debug of code that overwrites them
    • fix disk access that writes right up to >3FFF (pCode card in particular)
    • disable F18A status register select debug
    • add warning on odd PC address being set
    • add support for F18A GPU: CALL,RET,PUSH,POP,SLC
    • updated HQ4X filter - new filter code and should fix corrupted graphics in DIB blit mode
    • reduce duplicated debug when setting top of VRAM
    → NOWSZY [TI99] Classic99 394 26/02/2017
    Go'in Ape



    • fix bug with multi-bit CRU instructions - byte flag was set wrong way around and broke register auto-increment
    • add support for F18A SPI flash interface (upgrade program runs now)
    • also means that CKON, CKOFF, LDCR and STCR on the F18A work now
    • fix sector allocation when writing to disk image files to more closely match original TI controller
    • add support for more of the F18A status registers and reading them from the host
    • move source to Github - https://github.com/tursilion/classic99


    → NOWSZY [TI99] Classic99 393a 14/01/2017


    • Minor bugfix - image disk file allocation performed more like the TI disk controller, doesn't overwrite copy protection on Bubble Plane


    • rewrote speech synth CPU halt system, but this didn't fix anything that I could see
    • bugfix in image disk sector allocation that would leave empty holes on the disk
    • bugfix in image disk writing cluster list that only wrote one sector per cluster ;)
    • change image disk sector allocation - FDRs at the beginning, data at the end. Makes for nicer layout
    • disabled VDP warning, it's still not quite right
    → NOWSZY [TI99] Classic99 392 3/01/2017

    Classic99 391  (2017-01-03)

    • update palette colors (suggestion from Sometimes99er)
    • fix startup CPU timing
    • add some register support to GPU
    • implement scanline VDP processing
    • implement disk image writing (except per-sector writes)
    • re-added VDP warning (with a little more state awareness)
    • add optional FPS display
    • automatically disable disconnected joysticks (was causing slowdown in some cases)
    • fix F18A multiple palette support on ECM0 tiles
    • fix 5-sprite-on-a-line flag

    → NOWSZY [TI99] Classic99 391 6/11/2016
    Submarine Commander (Thorn Emi, 1983)
    Submarine Commander (Thorn Emi, 1983)

    Classic99 391  6 October 2016

    • Patch for XB256 'DELAY' call
    • Fix for disk CLOSE causing type mismatch
    • Fix for VDP memory overrun in disk systems (for data that ended exactly at >4000)
    • Make inverted carts respond to '9' instead of '3' for extension ('3' still supported)
    • Make VDP screen redraw when breakpointed
    wstecz03/01/2016 01:23
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