Booty: Routine at CD14

CD14: Game Entry Point

Manually write "`JP Handler_Interrupts`" at AliasInterruptRedirect.
GameEntryPoint	CD14	LD HL,$FEFE	HL=AliasInterruptRedirect.
	CD17	LD A,$C3	Write C3 which is the opcode for the "`JP`" instruction to *HL.
	CD19	LD (HL),A
	CD1A	INC HL	Increment HL by one.
	CD1B	LD A,$69	Write 69 to *HL.
	CD1D	LD (HL),A	Write 69 to *HL.
	CD1E	INC HL	Increment HL by one.
	CD1F	LD A,$FE	Write FE to *HL.
	CD21	LD (HL),A	Write FE to *HL.
All will become clear soon...
	CD22	LD HL,$F400	Write FE to 0104 bytes, starting from InterruptLowOrderByteJumpTable.
	CD25	LD BC,$0104
WriteInterruptJumpAddress	CD28	LD A,$FE
	CD2A	LD (HL),A
	CD2B	INC HL
	CD2C	DEC BC
	CD2D	LD A,B
	CD2E	OR C
	CD2F	JR NZ,WriteInterruptJumpAddress
	CD31	LD BC,$0000	Write 0000 to: SoundFlag_General FFFC *FFFB
	CD34	LD ($FFFE),BC
	CD38	LD ($FFFC),BC
	CD3C	LD ($FFFB),BC
	CD40	DI	Disable interrupts.
	CD41	LD HL,$FA00	Write MelodyData_ThemeTune to *MusicPointerThemeMusic.
	CD44	LD ($FFF9),HL	Write MelodyData_ThemeTune to *MusicPointerThemeMusic.
This sets interrupt mode 02; when the system generates an interrupt, it'll use the high-order byte set here, together with a low-order byte generated from the system to form a 16-bit address to jump to. As we've just set FE to every address, this means that every generated interrupt will jump to AliasInterruptRedirect, which in turn will jump to Handler_Interrupts.
	CD47	LD A,$F4	Set F4 as the high-order byte in I.
	CD49	LD I,A	Set F4 as the high-order byte in I.
	CD4B	IM 2	Set interrupt mode 02.
	CD4D	LD A,$03	Write 03 to: FFF7 MusicOnOff
	CD4F	LD ($FFF7),A
	CD52	LD ($FFF8),A
	CD55	EI	Enable interrupts.
	CD56	LD HL,$A06C	HL=Graphics_MaskSprite.
	CD59	LD B,$80	B=80.
	CD5B	XOR A	Write 00 to *HL.
GameEntryPoint_0	CD5C	LD (HL),A	Write 00 to *HL.
	CD5D	INC HL	Increment HL by one.
	CD5E	DJNZ GameEntryPoint_0	Decrease counter by one and loop back to GameEntryPoint_0 until counter is zero.
	CD60	EXX	Switch to the shadow registers.
	CD61	PUSH HL	Stash HL' on the stack.
	CD62	EXX	Switch back to the normal registers.
	CD63	XOR A	Write 00 to *DF_SZ.
	CD64	LD ($5C6B),A	Write 00 to *DF_SZ.
	CD67	LD A,$02	A=02.
	CD69	CALL $1601	Call CHAN_OPEN.
	CD6C	JP DisplayIntroductionScreen	Jump to DisplayIntroductionScreen.