Adds a small script which, when run, only allows input to P1's controller if both P1 and P2 holds down the specific button simultaneously. Also useful since it demonstrates joypad manipulation.
- use M64K Bus properly
- input display
- fceux font
- map and screen borders when camhack is on
- refactor out some functions
- manual lagtount tweaks
- use r24 alias instead of rl for reading addresses from RAM