diff --git a/split_screen/Makefile b/split_screen/Makefile
index aa2a77e6..44c22687 100644
--- a/split_screen/Makefile
+++ b/split_screen/Makefile
@@ -5,10 +5,11 @@ TOKENIZE = ../asoft_basic-utils/tokenize_asoft
 
 all:	split.dsk
 
-split.dsk:	BISHOP BISHOP.BAS RAINBOW.BAS
+split.dsk:	BISHOP BISHOP.BAS RAINBOW.BAS RAINBOW
 	$(DOS33) -y split.dsk BSAVE -a 0x0300 BISHOP
 	$(DOS33) -y split.dsk SAVE A BISHOP.BAS
 	$(DOS33) -y split.dsk SAVE A RAINBOW.BAS
+	$(DOS33) -y split.dsk BSAVE -a 0x0c00 RAINBOW
 
 BISHOP:	bishop.o
 	ld65 -o BISHOP bishop.o -C ../linker_scripts/apple2_300.inc
@@ -19,6 +20,12 @@ bishop.o:	bishop.s
 BISHOP.BAS:	bishop.bas
 	$(TOKENIZE) < bishop.bas > BISHOP.BAS
 
+rainbow.o:	rainbow.s
+	ca65 -o rainbow.o rainbow.s -l rainbow.lst
+
+RAINBOW:	rainbow.o
+	ld65 -o RAINBOW rainbow.o -C ../linker_scripts/apple2_c00.inc
+
 RAINBOW.BAS:	rainbow.bas
 	$(TOKENIZE) < rainbow.bas > RAINBOW.BAS
 
diff --git a/split_screen/rainbow.s b/split_screen/rainbow.s
new file mode 100644
index 00000000..949bc17b
--- /dev/null
+++ b/split_screen/rainbow.s
@@ -0,0 +1,115 @@
+;.include "zp.inc"
+
+	H2	= $2C
+	V2	= $2D
+	TEMPY	= $FB
+
+	HGR	= $F3E2
+	HLINE	= $F819
+	VLINE	= $F828
+	COLOR	= $F864
+	TEXT 	= $FB36
+	HOME	= $FC58
+
+	jsr	TEXT
+	jsr	HOME
+
+;30 HPLOT 0,Y TO X,Y:RETURN
+
+	jsr	HGR
+	lda	#0
+	sta	$C052		; POKE  - 16302,0
+;X=279
+;80 HCOLOR= 4:HPLOT 0,0
+	jsr	$F3F6			; CALL 62454
+					; BGND, fill screen with color
+
+;90 HCOLOR= 2:Y=63:GOSUB 30:Y=62:GOSUB 30
+;100 HCOLOR= 6:Y=61:GOSUB 30:Y=60:GOSUB 30
+;110 HCOLOR= 1:Y=59:GOSUB 30:Y=58:GOSUB 30
+;120 HCOLOR= 5:Y=55:GOSUB 30:Y=54:GOSUB 30
+;C=100
+;130 HCOLOR= 0:X=C
+;140 Y=123:GOSUB 30:Y=122:GOSUB 30
+;150 Y=119:GOSUB 30:Y=118:GOSUB 30
+	lda	#0
+	jsr	COLOR	; COLOR= 0
+
+	ldy	#0	; FOR I = 0 TO 39
+
+iloop:
+	sty	TEMPY
+			;      A,V2 at Y
+			; VLIN 0,39 AT I:NEXT
+	lda	#39
+	sta	V2
+	lda	#0
+	ldy	TEMPY
+	jsr	VLINE
+	ldy	TEMPY
+	iny
+	cpy	#40
+	bne	iloop
+
+
+	lda	#13
+	jsr	COLOR	; COLOR= 13
+
+	lda	#39
+	sta	H2
+	ldy	#0
+	lda	#14	;     Y,H2 at A
+	jsr	HLINE	;HLIN 0,39 AT 14
+
+	;A = 9200 = $23F0
+	;B = 13168 = $3370
+	;FOR I = 0 TO 7:POKE A + I,0:POKE B + I,0:NEXT
+
+	lda	#0
+	sta	$23F0
+	sta	$23F1
+	sta	$23F2
+	sta	$23F3
+	sta	$23F4
+	sta	$23F5
+	sta	$23F6
+	sta	$23F7
+	sta	$3370
+	sta	$3371
+	sta	$3372
+	sta	$3373
+	sta	$3374
+	sta	$3375
+	sta	$3376
+	sta	$3377
+
+	lda	#1		; COLOR= 1
+	jsr	COLOR
+
+	lda	#39
+	sta	H2
+
+	lda	#13
+	ldy	#0
+				;     Y,H2 at A
+	jsr	HLINE		;HLIN 0,39 AT 13
+
+;200 VTAB 21:PRINT TAB(16)"RAINBOW"
+;210 PRINT:PRINT "MIXED GRAPHICS (HI-RES/COLOR)"
+
+; code
+	lda	$C057
+	lda	$C053
+	lda	$C054
+loop:
+	lda	$C050
+	bne	loop
+	lda	$C056
+	ldy	#$16
+yloop:
+	dey
+	bne	yloop
+	nop
+	lda	$C057
+	jmp	loop
+
diff --git a/split_screen/split.dsk b/split_screen/split.dsk
index abac1547..f3986e49 100644
Binary files a/split_screen/split.dsk and b/split_screen/split.dsk differ