Hawk Wars for MSX

I like dying fast! Can you send me a copy?
And now you know everything about the game's audio routines, how about an PSG or SCC version?

I also now updated the "fast version" with Muffie's SN76489AN emulator that is selected if the real chip is not found... Especially explosions seem to sound quite random, but maybe better than silence anyway. (Just download again to test)

Well i though i knew something about MSX. But no way i can get this file working on a MSX1.

ok, thanks for the fb

The method to enable the SN76489AN of the MMM is indicated in the documentation.

First you have to detect the MMM slot.

Here is the example of detection routine from the documentation:

; Musical Memory Mapper detection
;
; Input: HL = address bank (8000h~BFFFh)
; Output: A = Slot number (0FFh if not found)
; Moditfy: AF, BC, DE, HL

MMM_Srch:
	ld	l,0FFh
	ld	b,16

MMM_Srch_Loop:
	push	hl

	ld	a,b
	dec	a
	and	3

	ld	hl,EXPTBL
	add	a,l
	ld	l,a

	ld	a,b
	dec	a
	or	(hl)

	pop    hl

	jp	m,Sec_SLT	; Jump if secondary Slot

	and	%00001111
	cp	4
	jr	nc,NextMMM_Srch ; Jump if 3-3 Slot

Sec_SLT:
	ld	c,a

	push	bc
	push	hl
	call	ENASLT		; Slot to search
	pop	hl
	pop	bc

	di

	ld	a,080h
	out	(03Ch),a	; Enable acces to registers by address mode

	ld	a,(hl)
	and	%00011111
	inc	a

	out	(0FFh),a

	or	%11000000
	cp	(hl)		; Same value?

	ld	a,0
	out	(03Ch),a
	out	(0FFh),a	; Restore initial mapper page on bank 0C000H~0FFFFH 

	ei

	ld	a,c		; A = Found Slot Number (F000SSPP)
	jr	z,MMM_Found

NextMMM_Srch:
	djnz	MMM_Srch_Loop	; Jump if MMM is not found

	ld	a,0FFh		; MMM not found value
	ret

MMM_Found:
	dec	b
	ret

This example is not easy to use from a binary file. It's better to create a more suitable one.

When the slot is known, enable the SN76489 by writing 40h at 0803Ch in this slot.

	ld	a,080h
	out	(03Ch),a	; Enable acces to registers by address mode
	ld	a,MMMSlt	; Slot Number
	ld	e,040h		; value to Enable the SN76489AN port of the MMM
	ld	hl,0803Ch	; Address to access the MMM register
	call	WRSLT

Just after the SN76489AN is enabled, set the volumes to 0 because this chip doesn't do that.

Volume0:
	ld	b,4
	ld	a,09Fh
Vol_Bcl:
	out	(03Fh),a	; Set the
	add	a,020h		; volume of SN76489AN
	djnz	Vol_Bcl		; to zero