dw .frame1
dw .frame2
dw .frame3
dw .frame4
.frame1
db $00 ; bitmask
db $19, $1a, $1b
.frame2
db $01 ; bitmask
db $1c, $1d, $1e
.frame3
db $02 ; bitmask
db $1f, $20, $00
.frame4
db $03 ; bitmask
db $21, $22, $23, $24
; 0xd5a4b