tiny_tracker: push the ay values to the start of the program

demos/l/music_256/Makefile

@@ -12,10 +12,11 @@ submit:	hgr_d2_1k.zip
 
 ####
 
-hgr_d2.dsk:	HELLO D2
+hgr_d2.dsk:	HELLO D2 VIZ
 	cp $(EMPTY_DISK)/empty.dsk ./hgr_d2.dsk
 	$(DOS33) -y hgr_d2.dsk SAVE A HELLO
 	$(DOS33) -y hgr_d2.dsk -t BIN -a 0x80 BSAVE D2
+	$(DOS33) -y hgr_d2.dsk -t BIN -a 0xc00 BSAVE VIZ
 
 ####
 
@@ -48,6 +49,16 @@ d2.o:	d2.s \
 
 ####
 
+VIZ:	viz.o
+	ld65 -o VIZ viz.o -C $(LINKER_SCRIPTS)/apple2_c00.inc
+
+viz.o:	viz.s \
+	zp.inc hardware.inc
+	ca65 -o viz.o viz.s -l viz.lst
+
+
+####
+
 text_to_tiny:	text_to_tiny.o
 	$(CC) -o text_to_tiny text_to_tiny.o -lm
 
@@ -57,4 +68,4 @@ text_to_tiny.o:	text_to_tiny.c
 ####
 
 clean:
-	rm -f *~ *.o *.lst D2 HELLO text_to_tiny mA2E_2.s
+	rm -f *~ *.o *.lst D2 VIZ HELLO text_to_tiny mA2E_2.s

demos/l/music_256/d2.s

@@ -40,7 +40,15 @@
 ;.globalzp       frequencies_high
 
 
-d2:
+music_split:
+
+	; we can execute these... (as qkumba noticed)
+	; it's SEC, ASL $0E0E
+
+	.byte	$38,$e,$e,$e		; mixer, A, B, C volume
+					; want to start at AY_REGS+7
+
+
 	; this is also the start of AY_REGS
 	; we count on A/B/C being played first note
 	; so the code gets over-written
@@ -50,18 +58,12 @@ d2:
 	jsr	SETGR			; enable lo-res graphics
 					; A=$D0, Z=1
 
+	bit	FULLGR			; make graphcs full screen
+
 	ldx	#$FF			; set stack offset
-;	bmi	skip_const
 
 	txs				; write 0 to stack pointer
 
-	nop
-
-	; we can execute these... (as qkumba noticed)
-	; it's SEC, ASL $0E0E
-
-	.byte	$38,$e,$e,$e		; mixer, A, B, C volume
-
 
 	;===================
 	; music Player Setup
@@ -82,6 +84,27 @@ game_loop:
 	; play a frame of music
 
 .include "play_frame.s"
+
+	; visualization?
+
+viz_smc:
+	ldx	#$00		; 2
+
+	lda	AY_REGS+4	; 2	; C channel low freq
+	sta	$400,X		; 3
+	lda	AY_REGS+2	; 2	; C channel low freq
+	sta	$500,X		; 3
+	lda	AY_REGS+0	; 2	; C channel low freq
+	sta	$600,X		; 3
+
+	inc	viz_smc+1	; 2
+
+;	nop
+;	nop
+
+
+
+
 .include "ay3_write_regs.s"
 
 	; X is in theory $ff when we get here
@@ -106,10 +129,12 @@ inner_wait:
 
 ; pad so starts at $80
 ; use this for visualization
-.byte $00,$00,$00,$00
-.byte $00,$00,$00,$00,$00
-.byte $00,$00,$00
-.byte $00,$00,$00,$00
+;.byte $00,$00
+;.byte $00,$00
+;.byte $00,$00,$00,$00,$00
+;.byte $00
+;.byte $00,$00
+;.byte $00,$00,$00,$00
 
 ; music
 .include	"mA2E_2.s"

demos/l/music_256/hardware.inc

@@ -29,6 +29,7 @@ NORMAL	= $F273
 HGR2    = $F3D8
 HCLR	= $F3F2
 HPOSN   = $F411         ; (Y,X),(A)  (values stores in HGRX,XH,Y)
+COSTBL	= $F5BA
 XDRAW0	= $F65D
        
 

demos/l/music_256/play_frame.s

@@ -52,15 +52,14 @@ not_end:
 
 	lda	frequencies_high,Y
 	sta	AY_REGS+1,X
-;	sta	$500,X
 
 	lda	frequencies_low,Y
 	sta	AY_REGS,X		; set proper register value
 
 	; visualization
-blah_urgh:
-	sta	$400,Y
-	inc	blah_urgh+1
+;blah_urgh:
+;	sta	$400,Y
+;	inc	blah_urgh+1
 
 
 	;============================

demos/l/music_256/zp.inc

@@ -9,7 +9,7 @@ GBASH   = $27
 BASL    = $28
 BASH    = $29
 
-AY_REGS		= $80
+AY_REGS		= $80-$7
 
 HGR_Y           = $E2
 HGR_COLOR       = $E4