B4C2: Routine at B4C2
| B4C2 | LD HL,$60A8 | 
| B4C5 | LD BC,$0711 | 
| B4C8 | EXX | 
| B4C9 | LD A,($5E40) | 
| B4CC | LD L,A | 
| B4CD | LD H,$00 | 
| B4CF | EXX | 
| B4D0 | PUSH BC | 
| B4D1 | LD (HL),$E4 | 
| B4D3 | INC HL | 
| B4D4 | INC HL | 
| B4D5 | LD A,(DE) | 
| B4D6 | LD (HL),A | 
| B4D7 | INC DE | 
| B4D8 | INC HL | 
| B4D9 | LD A,(DE) | 
| B4DA | LD (HL),A | 
| B4DB | INC HL | 
| B4DC | INC DE | 
| B4DD | LD A,(DE) | 
| B4DE | LD (HL),A | 
| B4DF | DEC DE | 
| B4E0 | DEC DE | 
| B4E1 | INC HL | 
| B4E2 | EXX | 
| B4E3 | LD A,(HL) | 
| B4E4 | INC HL | 
| B4E5 | AND A | 
| B4E6 | JP P,$B529 | 
| B4E9 | OR $FC | 
| B4EB | EXX | 
| B4EC | LD (HL),A | 
| B4ED | INC HL | 
| B4EE | EXX | 
| B4EF | LD A,(HL) | 
| B4F0 | INC HL | 
| B4F1 | AND $03 | 
| B4F3 | OR $FC | 
| B4F5 | SUB $01 | 
| B4F7 | EXX | 
| B4F8 | LD (HL),A | 
| B4F9 | INC HL | 
| B4FA | EXX | 
| B4FB | LD A,(HL) | 
| B4FC | INC HL | 
| B4FD | AND $07 | 
| B4FF | CP $02 | 
| B501 | JR NC,$B505 | 
| B503 | LD A,$07 | 
| B505 | OR $40 | 
| B507 | EXX | 
| B508 | LD (HL),A | 
| B509 | INC HL | 
| B50A | INC HL | 
| B50B | LD (HL),$00 | 
| B50D | INC HL | 
| B50E | DJNZ $B50B | 
| B510 | EXX | 
| B511 | LD A,(HL) | 
| B512 | INC HL | 
| B513 | AND $07 | 
| B515 | INC A | 
| B516 | EXX | 
| B517 | LD (HL),A | 
| B518 | INC HL | 
| B519 | LD (HL),A | 
| B51A | LD A,L | 
| B51B | ADD A,$07 | 
| B51D | LD L,A | 
| B51E | LD A,H | 
| B51F | ADC A,$00 | 
| B521 | LD H,A | 
| B522 | POP BC | 
| B523 | DEC C | 
| B524 | JR NZ,$B4D0 | 
| B526 | JP $B986 | 
| B529 | AND $03 | 
| B52B | INC A | 
| B52C | JR $B4EB |