Nintendo DS Emulation NEWS
for Nintendo DS
Description Megadrive/Genesis emulator for the DS
Here 30th January 2006
I've ported Charles MacDonald's Genesis Plus emulator to the DS! It currently
runs very slowly (about 1 frame per second) and doesn't make use of any
specialised DS hardware apart from the palette and the hardware scaling.
It renders the MD screen to a 512x256 extended rotation bitmap in mode
3 and uses hardware scaling to scale it to fit the DS screen.
Source is included (in fact, there is only source, no binary). It uses
devkitpro. I also created a VS.NET 2003 project file (which just runs make).
gpnds can be compiled to use a statically linked in GBFS filesystem, or
a single statically linked in rom image (converted using bin2s). No roms
are included in this archive! Sound is untested/unimplemented (and #ifdefed
out by default).
This is just a sort of first pass release. I'm not sure if I've got the
energy to port this to use the actual DS hardware (which would result in
huge speed increases) so I'm putting it out there in case anyone is interested
in toying with it. As it stands, it's really not playable, so this is really
just a demonstration, I guess.
Here is a quick how-to from the readme.txt:
1. Copy a smd or bin file to the root directory of gpnds.
2. If it's an smd file, run:
grom\grom -bin filename.smd
to convert it to a raw image.
swap filename.bin rom.bin
to swap the byte order of the bin file (there was code in the original
genesis plus to do this at load time, however, I wanted to remove as
many static arrays as possible).
bin2s rom.bin > gp/rom.s
to create the data file.
5. Make sure the entire thing isn't over 4Mb! :) Copy the .ds.gba file
your flash card (or use whatever method you are familiar with for running
NDS d-pad maps to megadrive d-pad
NDS x, b, a map to megadrive a, b, c
NDS start maps to megadrive start
NDS select resets the emulator
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