diff --git a/tic_tac.asm b/tic_tac.asm
index c8e47c4..e98b824 100644
--- a/tic_tac.asm
+++ b/tic_tac.asm
@@ -24,13 +24,13 @@ sep #%00100000
 
 ldx #$0000
 - lda UntitledPalette.l, x
-sta $2122
+sta $2122  ; $2122 - data for CG RAM write
 inx
 cpx #8
 bne -
 
 lda #33
-sta $2121
+sta $2121  ; address for CG RAM write
 lda.l Palette2
 sta $2122
 lda.l Palette2 + 1
@@ -154,7 +154,6 @@ sta $4200
 
 
 
-
 ;sep #$30        ; get 8-bit registers
 ;stz $2121       ; write to CGRAM from $0
 ;lda #%10000000  ; this is
@@ -208,6 +207,9 @@ UntitledData:
     .db $00, $00, $00, $00, $01, $00, $03, $00, $07, $00, $0F, $00, $1F, $00, $3F, $00
 
 UntitledPalette:
+    ;color schema here is %0RRRRRBB BBBGGGGG
+    ; final 2 bytes seem to be grid
+    ;.db %00000000, %00000000, %11100000, %01111111, %00011111, %00000000, %00000011 %11111111
     .db $00, $00, $E0, $7F, $1F, $00, $FF, $03
 Palette2:
     .db $E0, $7F