D7C9: Routine at D7C9
| D7C9 | LD A,($E0D2) | 
| D7CC | LD BC,($E568) | 
| D7D0 | LD HL,$D554 | 
| D7D3 | CP $15 | 
| D7D5 | JR NZ,$D7E4 | 
| D7D7 | LD ($D820),BC | 
| D7DB | BIT 1,(HL) | 
| D7DD | JR NZ,$D7E4 | 
| D7DF | LD A,$01 | 
| D7E1 | LD ($D557),A | 
| D7E4 | CP $3D | 
| D7E6 | JR NZ,$D7F5 | 
| D7E8 | LD ($D822),BC | 
| D7EC | BIT 2,(HL) | 
| D7EE | JR NZ,$D7F5 | 
| D7F0 | LD A,$01 | 
| D7F2 | LD ($D558),A | 
| D7F5 | CP $3E | 
| D7F7 | JR NZ,$D806 | 
| D7F9 | LD ($D824),BC | 
| D7FD | BIT 3,(HL) | 
| D7FF | JR NZ,$D806 | 
| D801 | LD A,$01 | 
| D803 | LD ($D559),A | 
| D806 | CP $3F | 
| D808 | RET NZ | 
| D809 | LD ($D826),BC | 
| D80D | BIT 4,(HL) | 
| D80F | RET NZ | 
| D810 | LD A,$01 | 
| D812 | LD ($D55A),A | 
| D815 | RET |