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SpeccySE: Difference between revisions

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|description=ZX Spectrum 48K/128K emulator for the DS/DSi/XL/LL.
|description=ZX Spectrum 48K/128K emulator for the DS/DSi/XL/LL.
|author=Dave Bernazzani (wavemotion-dave)
|author=Dave Bernazzani (wavemotion-dave)
|lastupdated=2025/10/20
|lastupdated=2025/10/27
|type=Computer
|type=Computer
|version=1.5
|version=1.6
|license=Mixed
|license=Mixed
|download=https://dlhb.gamebrew.org/dshomebrew2/SpeccySE.7z
|download=https://dlhb.gamebrew.org/dshomebrew2/SpeccySE.7z
Line 27: Line 27:
* Slide-n-Glide style Joystick configuration to make climbing ladders in games like Chuckie-Egg more forgiving (try it - you'll like it!).
* Slide-n-Glide style Joystick configuration to make climbing ladders in games like Chuckie-Egg more forgiving (try it - you'll like it!).
* High Score saving for 10 scores with initials, date/time.
* High Score saving for 10 scores with initials, date/time.
* Favorites list so you can mark games as 'like' or 'love' - a yellow or red heart icon will mark your favorite games.
* Solid Z80 core that passes the ZEXDOC test suite (covering everything but not undocumented flags).
* Solid Z80 core that passes the ZEXDOC test suite (covering everything but not undocumented flags).
* Minimal design asthetic - pick game, play game. Runs unpached from your SD card via TWL++ or similar.
* Minimal design asthetic - pick game, play game. Runs unpached from your SD card via TWL++ or similar.
Line 37: Line 38:
* 128.ROM  with CRC32 of 2cbe8995
* 128.ROM  with CRC32 of 2cbe8995
</pre>
</pre>
Create a folder(s) for your game files, you can store a maximum of 1024 game files within each folder.


== User guide ==
== User guide ==
From the main menu, you select a game file (.TAP, .TZX or .Z80), after which you can either play it or change the game settings (define keys or set specific game options).
From the main menu, you select a game file (.TAP, .TZX or .Z80), after which you can either play it or change the game settings (define keys or set specific game options).
 
You can use the SELECT button when picking a game to toggle a favourites icon (3 levels): No icon (not a favorite), Yellow Heart (like) and Red Heart (love).


During gameplay, you can use the cassette icon to reset the game or swap tapes. The other menu allows you to quit the current game, save/load the game state and set some high scores for the game being played.
During gameplay, you can use the cassette icon to reset the game or swap tapes. The other menu allows you to quit the current game, save/load the game state and set some high scores for the game being played.
Line 58: Line 63:


== Changelog ==
== Changelog ==
'''Version 1.6 2025/10/27'''
* Revamped Z80 CPU core to provide more accurate timing and memory contention/floating bus. Multi-color games (aka Nirvana+, BiFrost, etc) now play and look reasonably correct and CPU speed is generally correct.
* Fix for AY music not restoring properly on some Load States.
* Smoother beeper sound for improved fidelity.
* Added Kempston 2nd Fire button which can be mapped in.
* Default machine is now the ZX Spectrum 128K but it will revert to 48K for common games with compatibility issues.
* Other minor cleanups and improvements as time permitted.
'''Version 1.5 2025/10/20'''
'''Version 1.5 2025/10/20'''
* Added ULAplus support for games that support the extended color palette.
* Added ULAplus support for games that support the extended color palette.

Revision as of 09:56, 31 October 2025

SpeccySE
General
AuthorDave Bernazzani (wavemotion-dave)
TypeComputer
Version1.6
LicenseMixed
Last Updated2025/10/27
Links
Download
Website
Source

SpeccySE is a ZX Spectrum 48K / 128K emulator for the DS/DSi.

Features

  • Loads .TAP files up to 512K total length (can swap tapes mid-game).
  • Loads .TZX files up to 512K total length (can swap tapes mid-game).
  • Loads .Z80 snapshots (V1, V2 and V3 formats, 48K or 128K).
  • Loads .SNA snapshots (48K only).
  • Loads .P files for ZX81 emulation (see below).
  • Loads .ROM files up to 16K in place of standard BIOS (diagnostics, etc).
  • Supports .POK files (same name as base game and stored in POK subdir).
  • Kempston and Sinclair joystick support.
  • Fully configurable keys for the 12 NDS keys to any combination of joystick/keyboard.
  • Save and Restore states so you can pick up where you left off.
  • Slide-n-Glide style Joystick configuration to make climbing ladders in games like Chuckie-Egg more forgiving (try it - you'll like it!).
  • High Score saving for 10 scores with initials, date/time.
  • Favorites list so you can mark games as 'like' or 'love' - a yellow or red heart icon will mark your favorite games.
  • Solid Z80 core that passes the ZEXDOC test suite (covering everything but not undocumented flags).
  • Minimal design asthetic - pick game, play game. Runs unpached from your SD card via TWL++ or similar.

Installation

Requires one or both of the original ZX Spectrum BIOS ROMs.

Place them into the same directory as the emulator or /roms/bios/ or /data/bios/:

* 48.ROM    with CRC32 of ddee531f
* 128.ROM   with CRC32 of 2cbe8995

Create a folder(s) for your game files, you can store a maximum of 1024 game files within each folder.

User guide

From the main menu, you select a game file (.TAP, .TZX or .Z80), after which you can either play it or change the game settings (define keys or set specific game options).

You can use the SELECT button when picking a game to toggle a favourites icon (3 levels): No icon (not a favorite), Yellow Heart (like) and Red Heart (love).

During gameplay, you can use the cassette icon to reset the game or swap tapes. The other menu allows you to quit the current game, save/load the game state and set some high scores for the game being played.

For more details on usage please see the project readme.

Screenshots

speecyse2.png speecyse3.png

speecyse4.png speecyse5.png

Known issues

  • Not all Dandanator compilation games run properly - support is preliminary (but good enough for the few games that really need it).
  • Gluf, Plyuk, Ringo and Old Tower (among a few others) utilize graphics handling that requires pinpoint accuracy in emulation timing and will not look correct.
  • TRD disk files are not supported yet. Most games have TAP or Dandanator alternatives - but not all.

Changelog

Version 1.6 2025/10/27

  • Revamped Z80 CPU core to provide more accurate timing and memory contention/floating bus. Multi-color games (aka Nirvana+, BiFrost, etc) now play and look reasonably correct and CPU speed is generally correct.
  • Fix for AY music not restoring properly on some Load States.
  • Smoother beeper sound for improved fidelity.
  • Added Kempston 2nd Fire button which can be mapped in.
  • Default machine is now the ZX Spectrum 128K but it will revert to 48K for common games with compatibility issues.
  • Other minor cleanups and improvements as time permitted.

Version 1.5 2025/10/20

  • Added ULAplus support for games that support the extended color palette.
  • Improved beeper sound accuracy.
  • Fixed potential Z80 core memory stack issue - fixes a couple of games that were crashing.
  • Other minor cleanups and improvements under the hood.

Version 1.4 2025/10/15

  • Fixed Shift and Symbol so they are truly temporary.
  • Improved memory contention timing.
  • Improved .POK support to handle much larger POK memory lists.
  • Added more resolution to the CPU speed options.
  • Added Dandanator .ROM support up to 512K banked.
  • Added diagonal D-Pad handling as a configurable option.
  • CPU Core speedup for 10% speed gain (helps with DS-Lite).
  • Fixed WSAD key mapping defaults (S and A were swapped).
  • Other minor improvements and fixes under the hood.
  • 1.4a Hotfix! Fixes crash in some 128K games. Sorry!

Version 1.3 2025/09/10

  • Increased number of configuration game slots to 4096.
  • Increased number of high-score slots to 1500.
  • Fix and improvements for auto-tape handling so games load more reliably.
  • Fix for Save/Load states for 128K games (some games would not load back properly).
  • Added ability to dim the keyboard screen in-game (set in Global Options).
  • Keyboard graphic replaced the word 'MENU' with a graphical menu icon.
  • Fix when redefining keys so that it more cleanly remembers previous settings.
  • Minor tweak to main menu and cassette menu handling to avoid screen garbage character.
  • Refactored memory for tape loading to free up additional resources for future expansion of the emulator.

Version 1.2 2025/09/07

  • Improved ZX81 support for direct loading of .P files.
  • New global option for machine type (48K vs 128K).
  • New main icon to better reflect the design aesthetics.

Version 1.1 2025/04/30

  • Double buffer video on DSi/XL/LL for reduced tearing.
  • Rebranded 'Chuckie Egg-Style' joystick handling to 'Slide-n-Glide'.
  • Minor cleanups as time permitted.

Version 1.0 2025/04/14

  • First official release of Speccy-SE!

External links

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