I'll dispense with all the first post crap and get to the point.
How difficult would it be to port on of the existing OpenZDK Zune HD GameBoy emulators to work on a Zune SD? I understand that there are less input options to work with. I would perform this task myself, however, I am only just starting in OpenZDK development (and C/C++ for that matter). I don't feel comfortable enough with my skills to do it myself.
Understandably, I don't have very much expertise, so I don't know the actual difficulty versus the expected difficulty. Having written emulators in the past, I know that the bulk of the work is the emulation code, and the platform is generally not as important, but this may not be the case in this situation.
Hopefully, I can play some GameBoy games on my old Zune SD brick soon! It's been a long time coming for me, including hours and hours spent trying to optimize GameKnight to run on the Zune in XNA at a reasonable speed. Now that OpenZDK is around for native code, and GameBoy emulators are working, I hope to see my dream realized soon.
EDIT: Clarifying that I'm not talking about a GBA emulator, which is considerably more difficult to make. I'm talking about the classic GameBoy, powered by a good old z80/Intel 8080 hybrid 4.19 MHz processor.
It isn't possible(to my understanding), the Zune HD is having a hard time running the GBA emulator as is
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"I don’t know whether I’m alive and dreaming or dead and remembering. How can you tell what’s a dream and what’s real if you can’t even tell when you’re awake or when you’re asleep?" - Johnny Got His Gun
I can understand the difficulty involved in a GBA emulator, and wouldn't expect it to work. I'm just looking for GB/GBC emulation. The general rule of emulation is that the emulating device should have at least 150% processor clock speed of the emulated device. The classic GameBoy is 4.19 MHz, and the color goes up to 8 MHz. The Zune SD runs at almost 400 MHz, and should theoretically be able to handle GB/GBC emulation. If the port isn't too difficult, and just amounts to switching up some buttons, perhaps it would be possible to try it out?
Technically a GBA emulator for SD zunes is possible, but it won't happen. The GBA emulator on the Zune HD doesn't run very well as it is and it would be even worse for the Zune SD, not to mention the lack of people willing to spend time porting something to a Zune SD.
Even the GB/GBC emulator does't have decent sound working. It IS possible, but it is just that there is no one who is willing to put the time into porting it to a Zune SD.
I see. Sound isn't a large requirement for me. I was just wondering how difficult it was to write software that runs on both platforms. If it is too difficult and no on is willing to spend time on it, I'll try it myself, I just don't trust my coding abilities thus far on Zune to the point where I believe I'll be successful.