| Startup routine

5EE0: Start

We jump here from the load routine at 802F.
5EE0 | LD SP,$5CFE | Put the stack pointer somewhere safe
5EE3 | LD HL,$7E00 | Copy 7E00-7FFF into 8000-81FF
5EE6 | LD DE,$8000
5EE9 | LD BC,$0200
5EEC | LDIR
5EEE | LD HL,$7DFF | Move 5F00-7DFF up to 6000-7EFF
5EF1 | LD DE,$7EFF
5EF4 | LD BC,$1F00
5EF7 | LDDR
5EF9 | EI | Enable interrupts
5EFA | JP $6900 | Play the theme tune and enter demo mode