Archived from groups: alt.games.video.nintendo.gameboy.advance (
More info?)
"Sam" <fallout22uk@yahoo.co.uk> wrote
> How many game will the 256 Mbit cartridge hold?
I'm assuming that you may not be familiar with flashcarts.
With flash carts, you have to keep in mind that the memory capacity is
measured in Megabits -- not Megabytes.
A 256 Megabit (32 Megabyte) could hold four 64 Megabit (8 Megabyte) GBA
games -- assuming that space within the 256 Megabits doesn't have to be
alloted for the loader program. I'm using 64 Megabit (8 Megabyte) GBA
games as an example since that is probably the average game size -- although
there are many games that are only 32 Megabit (4 Megabyte) and also some
large games (i.e., "Final Fantasy Tactics") that are 128 Megabit (16
Megabyte). Do the division and you can figure out the capacity fo any
combination.
The "loader" program is the program that allows you to select which ROM
image that you want to execute on the flash. Most carts have loader
programs that can be brought up at any time, even when you are in a GBA
game -- i.e., you don't have to power down to select a new game. Most 128
Megabit flash carts actually have a little more memory space than 128
Megabits in order to accommodate the loader program. The card over 128
Megabit, however, in many cases don't have extra space for the loader. It
depends on the card and manufacturer.
There are different approaches (depending on cart) on how the ROMs are
actually transfered to the cartridge. Some carts are flashed by an external
"linker", which is usually a USB device that you hook up to your PC to do
the flashing, while others you simply just attach your GBA directly to your
PC via USB (in which case, the GBA itself is the "linker".) The Nintendo
DS, which lacks the GBA port, is not capable of the second method.
I'm using just a small 128 Megabit (EZ2 Powerstar) flashcart as all I
intended to do with it was just simply be able to emulate original NES and
SMS games. I went with the external USB linker as I mainly use it with a
Nintendo DS. Works just fine. I don't think I could find enough NES/SMS
games that are worth having on the cart to fill up all the available memory.
:^)
Check out:
http://www.gbaflashguide.com
Cheers 'n Beers!
-ES