wavemotion-dave/ColecoDS 10.7 on GitHub

V10.7: 31-Aug-2025 by wavemotion-dave

V10.6: 30-Aug-2025 by wavemotion-dave

V10.5: 14-Mar-2025 by wavemotion-dave

Update to the Z80 core to improve emulation accuracy. This emulator now passes the ZEXALL test suite.
Added proper M1 wait states for the Colecovision, ADAM and MSX emulation for improved CPU handling.
A few optimized Z80 lookup-tables brings in some additional speed for both the DSi and DS-Lite/Phat.
Improved file loading so that it's more robust - ensuring a higher level of consistency in loading large files into memory.
Other minor cleanups as time permitted.

V10.4: 10-Mar-2025 by wavemotion-dave

DSi now supports cart ROMs up to 4MB (4096K). Only a few MSX tech demos / games get anywhere near this.
New super-simplified Colecovision CPU driver that is used for most of the well-behaved Colecovision games to render them full speed on the older DS-Lite/Phat.
Improved emulation speed of the 6502 core to render all Creativision games at full speed on older DS-Lite/Phat.
Corrected a few cycle timings and generally improved accuracy of the Z80 CPU driver.

V10.3: 15-Nov-2024 by wavemotion-dave

Added support for the 31-in-1 and 63-in-1 multicarts.
Added support for 'Wave Direct' sound driver to render digitized speech in games such as Sewer Sam, Squish-Em, Wizard of Wor, etc.

V10.2: 05-Nov-2024 by wavemotion-dave

Fix for SGM enable/disable that renders The Castle and Castle Excellent playable.
Auto-disable SGM for Cavern Fighter to render it playable.
Three year anniversary of the Phoenix Edition - Happy Birthday ColecoDS!

V10.1: 03-Sep-2024 by wavemotion-dave

Fix for the ADC decimal-mode instruction in the 6502 core for the CreatiVision. This fixes a number of problems including hex-digits showing on scores for some games.
Tweaks and optimizations for the CreatiVision driver. Added most of the common/stable 'undocumented' opcodes.
Improved emulation accuracy for the ADAM with memory now initialized to alternating 0x00 (even bytes) and 0xFF (odd bytes) per AdamEM and experiments from Shawn Merrick.

V10.0: 10-Aug-2024 by wavemotion-dave

Adam Sound Enhancer module support to allow AY sound games to play (mostly MSX ports to the ADAM)
Ignore files that start with a '.' or '_' (mostly to help filter out clear non-game files).
Minor cleanup, tweaks and a bug fixes.

V9.9: 02-May-2024 by wavemotion-dave

Added overlays for Blackjack and War Room. Improved War Games overlay.
Added KANA lock LED indicator for Japanese MSX keyboard layouts.
Correctly read-back the PPG Port B (needed to make the KANA lock work but is more accurate overall).
Improvements to various Coleco PCB types for more accurate emulation.

V9.8: 23-Apr-2024 by wavemotion-dave

Cleanup of MSX BIOS handling - we now support the Panasonic CF-2700 directly. See MSX BIOS section for details.
MSX status line now shows RAM (based on machine chosen) on the status line (was previously showing ROM size which no other machine in ColecoDS did).
MSX Caps Lock now has LED indicator on the virtual keyboard.
Added ROM/CAS/DSK size and CRC32 on the main screen after choosing a game.
Numerous fixes for Save/Load states especially for the MSX and Einstein.
Improved memory handling to free up some DS resources for future expansion.

V9.7: 16-Apr-2024 by wavemotion-dave

Fixed Colecovision RAM mirrors such that Boulderdash runs properly.
The Heist now forces RAM to clear (all zeros) as it is known to be picky about contents of RAM on power up.
Fix EEPROM sequential reads so Activision PCB games like Jewel Panic work correctly.
Added the Wildcard and Print buttons on the virtual ADAM keyboard. All ADAM virtual keys should now be present.
Added new configuration options to select the Colecovision mode to run in - you can force ADAM emulation, force PCB types, and set EEPROM sizes, etc.
New global option to force ADAM mode, SGM can be Disabled, and BIOS auto-patch for 'Fast BIOS' to force the 15 second wait down to 3 seconds.
Minor cleanup and optimization to the Adam core.

V9.6: 08-Apr-2024 by wavemotion-dave

V9.5: 30-Mar-2024 by wavemotion-dave

ADAMnet improvement for disk/tape handling. Improved timing, improved caching and more disk/tape games should load and run correctly.
DSI gets a massive 2MB of Expansion RAM (32 banks of 64K). DS-Lite/Phat still has 128K (base 64K plus the standard 64K expansion RAM).
Adam now properly handles 320K disks and three drive bays are virtually attached (two 320K disk drives and the internal Tape drive at 256K).
Adam full keyboard now uses an LED indicator under the CAPS LOCK button to indicate status.
Adam has improved keyboard graphic with more keys added.
Adam no longer mirrors RAM as a Colecovision would.
Adam optimization provided 5% improved emulation speed which should make most everything playable even on the older DS-Lite/Phat.
Adam supports the 32K expanded ROM and running carts under Adam emulation - name your ROMs as .adm so it loads into the right place in memory.
Tatung Einstein now has two proper standard 200K disk drives.
Tatung Einstein full keyboard now uses LED indicators under the SHIFT/CTRL/GRAPH and ALPHA LOCK keys for a visual improvement.
Tatung Einstein properly handles the backspace key when using the Alpha-Numeric keyboard overlay.
2000 individual game configurations are supported - save/load states optimized and numerous tweaks under the hood.

V9.4: 16-Mar-2024 by wavemotion-dave

Tatung Einstein improvements - more games run more correctly.
Other minor tweaks and cleanup as time permitted.
Einstein RAMDISK now unified in /data/ directory (rather than have one for each directory of .dsk files)
Tweaks to the CTC timer engine for Einstein JSW2
Fixed TMS9918 VDP 5th Sprite Flag handling and slight optimization to the VDP driver.
Updated to latest SN76496 sound driver from FluBBa.
Other minor tweaks and cleanup as time permitted.
Version 9.3a with hotfix for SVI game loading fixed.

wavemotion-dave/ColecoDS 10.7 Version 10.7 on GitHub