- completely moved MCU interrupt handling outside of the critical section
- refactored a bit of the PXI code and command names
- merge the I2C read and write cmds to be one
- remove SET_VMODE cmd, now it's always initialized to BGR565 on boot and to RGB565 on firmlaunch
- atomic-ize more stuff
fetching the thread id requires coprocessor access which means doing funky switches between thumb and arm -
it's faster to just allocate a single pointer and do an indirect load when necessary
- properly performs gpu/backlight reset
- nukes vram so the initrd had to be moved to arm9 memory, and have its size (at least temporarily) limited to 256k
- circle pad simulates dpad keys (up, right, down, left)
- raw touchscreen data is provided but currently unused
- added a simple shared memory region thing
- fixed the 10ms delay to be _after_ the backlights are turned on, thanks to profi again
as always, other stuff I probably forgot about
