Opentyrian2x is the open source GP2X port of the vertical scrolling shooter Tyrian originally for the PC.

Version 0.3 updates include:
* Non-fullscreen mode is now centered. See Title -> Opentyrian menu.
* ARM assembler sound mixer. Nice speed up, Pentium detail level is fully playable! Code is thanks to sweetlilmre and his efforts porting Tyrian to the Gizmondo.
* Improved controls within menus. No longer uncontrollably fast!
* Improved controls for accessing PAUSE and IN-GAME SETUP.
* GP2X specific readme-gp2x.txt providing instructions and setup.
* Smaller, stripped executable.
* Redefinable fire keys. See Options -> Joystick menu.

New default keys in game:

A/B are main fire
X is switch rear weapon
L is left side weapons fire
R is right side weapons fire
SELECT brings up in-game menu
START is pause


New default keys in menu:

A/B is main select
Y is back a menu or escape

Happy New Year!

Thanks to all those who posted suggestions and comments. :-)

- Slaanesh, Kalimerou and the Opentyrian team.

Welcome to the home page for my port of NetHack to the Nintendo DS. The goal of this project is to create a port of NetHack for the DS utilizing the unique features of the DS to create an easy-to-use NetHacking experience. I think I've succeeded in that goal. I'm probably wrong.

Features
An unscaled, scrolling map view on the lower screen, which can be interacted with using the touchscreen.
Minimap, message, and status information rendered to the top screen.
Support for 16- and 256-color BMP tilesets, including non-rectangular tiles (tiles must have dimensions which are a multiple of 8, e.g. 8x8, 8x16, etc).
Support for text mode, with optional full color and IBM graphics.
Popup command window for easy access to the full command set.
On-screen keyboard for text input and extended commands.
Keys are almost completely configurable.
Support for both left- and right-handed modes.
Save and restore.
Sleep mode.
News

December 28, 2007
Version 1.13a Released.

Bah, left some debugging code in the previous release by accident, which prevented NHDS from powering off after a save. This is fixed.

December 27, 2007
Version 1.13 Released.

Presents a saved game selection menu if there are multiple saves available.
Enables key repeats for all game commands.
Includes this patch, which adds some special wall colours, etc, to specific areas. By default, this is off, by can be enabled using the mapcolors option.
Adds a new movement mode, dubbed triggermode, which can be enabled through defaults.nh.
Trigger mode is an interesting new movement scheme devised by a fellow named Mesh. But, rather than try to describe it myself, why not quote the inventor?


'Could there be an optional movement mode where no movement occured until a specific "movement" button was pressed?


For example, you'd hold the D-pad in the upper right position and press B, and the character would move diagonally to the upper right. You'd hold the D-pad in the down position and press B, and the character would move down etc. (and when no directional buttons were pressed, the movement button would perform its regular mapped function - I'd personally map it to wait or search) The same thing could perhaps be done for zapping, firing and all directional input. I think it would be a more elegant solution.'

See the packaged defaults.nh for how to enable this mode..

What's New?
[Genesis]
many sourcecode cleanup and optimization
completely rewrote EEPROM emulation: now support all known EEPROM types (24C01-24C65) and mappers (Sega, Acclaim, EA, Codemasters) used in a few games (now use internal game database) as external RAM. This should at least fix save support in the following games:
NBA Jam (alternate Acclaim mapper)
College Slam, Frank Thomas Big Hurt Baseball (24C65 type)
NHLPA Hockey 93, Rings of Power (EA mapper)
Micro Machines serie, Brian Lara Cricket 96/Shane Warne Cricket (Codemasters mapper)
external RAM is now initialized to 0xFF by default: fix Micromachines 2, Dino Dini Soccer
fixed SRAM 16-bits memory handlers: fix some Sega Sports and EA Sports games (NFL95, NBA Action 95, NHL97, NHL98,…)
modified WRITE_xxx & READ_xxx macros for better portability and faster memory access on BIG ENDIAN platform
completely rewrote BIG ENDIAN support in render.c and vdp.c: rendering should be a little faster
rewrote ROM bankswitch emulation (Super Street Fighter II): ROM access are faster, using memory pointers instead of reading ROM copy from ARAM
fixed leftmost Window/PlaneA column render and implemented Window bug (as described by Charles Mc Donald)
improved “Sprite Limit” and “Sprite Collision” detection accuracy
modified RGB565 Color Palette to use the full available color range (0-31;0-63)
implemented “cycle accurate” HV Interrupt timings: fix Sesame’s Street Counting Cafe, Legend of Galahad (intro)
improved VDP access timings accuracy (added FIFO emulation): fix Double Clutch
improved DMA timings accuracy: fix Winter Olympics (E), Arch Rivals and probably more
fixed HCounter again: Road Rash serie (I,II,III) don’t need timing hacks anymore
fixed VCounter in Interlaced 2 mode: fix Combat Cars “VS-Mode”
improved Interlaced 2 mode (double resolution) rendering: Sonic 2, Combat Cars (”VS-Modes”) look far better
added TMSS BIOS support (optional)
rewrote part of the YM2162 MAME’s core: fixed internal FM timers handling, removed non-YM2612 emulation code and unused multiple cpu support
implemented “cycle accurate” FM timers & sound samples rendering
improved Z80 Interrupt timing accuracy: fix Sonic 3 music slowdowns
updated Z80 & 68000 cores to last MAME versions
improved Soft Reset emulation: X-Men 2 and Eternal Champions (random character selection) now work more like on real hardware
added full overscan emulation (vertical & horizontal borders) for “pixel perfect” aspect ratio (tested against a real genesis)
[NGC]
fixed rom checksum calculation (only used for rom information)
some modifications in GX rendering code
added support for original Genesis/Megadrive NTSC & PAL video modes: this makes games looking exactly as on original hardware (progressive rendering with reduced resolution)
added “Aspect” option to switch between ORIGINAL (aspect ratio is fixed and borders are emulated) and MANUAL SET (horizontal and vertical scaling can be manually configured, borders are not emulated)
added “Overscan” option to disable the original borders color and always use black borders (only used when ORIGINAL Aspect mode is enabled)
added support for up to 720 pixels horizontal resolution (needed for proper aspect ratio emulation)
added “TV Mode” option to enable automatic switching to PAL(50Hz) TV mode when the Genesis runs in PAL mode
added “Xshift” & “Yshift” settings to let you adjust display area position while keeping the original aspect ratio
added option to disable/enable SSG-EG support in FM cores: this special mode is indeed not properly emulated and some games might sound wrong when enabled
removed “CPU Type” option, you can also now force Region (JAP/EUR/USA) without reseting the game, choose USA or JAP for 60hz, EUR for 50hz, this can be useful to bypass game region protection at startup.