180: Routine at CA7C

CA7C: Sound: "180"

Used by the routine at Handler_Bust.
Plays 1-bit PCM speech for the "ONE HUNDRED AND EIGHTY!" announcement.
Sound_180Speech	CA7C	LD HL,$D500	Set a pointer to the speech data in HL to Data_Speech.
	CA7F	LD DE,$0800	Set the data length counter in DE to 0800 bytes.
SpeechProcessByte	CA82	LD B,$08	Set a counter in B for 08 bits per byte.
SpeechProcessBit	CA84	RLC (HL)	Rotate *HL left one position to set the next bit to the carry flag.
Set the speaker bit ON or OFF based on if the currently processed bit is set or not.
	CA86	LD A,%00010000	Set the speaker bit to ON.
	CA88	JR C,SpeechOutputSample	Jump to SpeechOutputSample if the carry bit is set.
	CA8A	XOR A	Set the speaker bit to OFF.
Output the sample.
SpeechOutputSample	CA8B	OUT ($FE),A	Send A to the speaker.
Introduce a tiny delay.
	CA8D	LD C,$12	Set a delay counter in C.
SpeechDelay_Loop	CA8F	DEC C	Decrease the delay counter by one.
	CA90	JR NZ,SpeechDelay_Loop	Jump to SpeechDelay_Loop until the delay counter is zero.
	CA92	DJNZ SpeechWasteCycles	Decrease the bit counter by one and loop back to SpeechWasteCycles until all bits in the current byte have been processed.
Finished with this byte, move onto the next.
	CA94	INC HL	Move to the next byte of speech data.
	CA95	DEC DE	Decrease the data length counter by one.
	CA96	LD A,D	Jump to SpeechProcessByte until all the bytes have been processed.
	CA97	OR E
	CA98	JR NZ,SpeechProcessByte
All done, re-enable the interrupts and return.
	CA9A	EI	Enable interrupts.
	CA9B	RET	Return.
Minor timing tweaks (probably).
SpeechWasteCycles	CA9C	NOP	No operation.
	CA9D	NOP
	CA9E	NOP
	CA9F	NOP
	CAA0	NOP
	CAA1	JR SpeechProcessBit	Jump to SpeechProcessBit.