Homebrew GBA Loading

[MikeM64]

So, I was wondering, why is it not possible to load GBA games from a SLOT-1 cart?

I know that there are SLOT-2 cards, but what are the technical reasons why there are no gba loaders for SLOT-1 cards.

Things I don't want to hear include: "not enough ram" (paging can fix that...), "there are already SLOT-2 cards so why bother", etc.

 

[The Pi]

There is multiple reasons why an emulator is not possible,
not enough RAM (paging will not fix that),
mircoSD cards are much slower than ROM,
a DS doesn't have the clock speed to emulate a GBA,
These 3 reasons make an emulator impossible.

A hypervisor is possible but no one will bother to make one as it's too much work (way too much work)

A DSTWO, EX4i and iPlayer are able to run GBA from slot1 only because of the built in processors (and ram) within the 3 carts.

 

[MikeM64]

There is multiple reasons why an emulator is not possible,
not enough RAM (paging will not fix that),
mircoSD cards are much slower than ROM,
a DS doesn't have the clock speed to emulate a GBA,
These 3 reasons make an emulator impossible.

I was not thinking of an emulator. The DS has the GBA hardware inside already, so I was thinking that you could use the ARM9 to actually run the code (since the memory maps , and the ARM7 to handle all the other things like I/O and sound.

I guess I'm thinking of a hypervisor?

 

[The Pi]

Most of the GBA hardware is locked out of NDS mode < you're not thinking of a hypervisor

A hypervisor would virtualize rather than emulate the GBA hardware.
look at this

 

[Speculant]

It's possible, but the software just isn't there yet.