Zad: Create two dots in the middle of the „video memory ”. Animate
them moving in oposite directions , first on X then on Y axis .
Repeat until reset .


start:

LDA #$2e
STA $42f
STA $430

LDX #$f
LDY #0

startx:

LDA #0
STA $420,x
STA $430,y	

LDA #$2e
INY
DEX
BEQ starty
STA $420,x
STA $430,y
JMP startx

starty:

LDX #32
LDY #224

LDA #$2e
STA $42f
STA $430

LDA #0
STA $42f
STA $430	

start2:
LDA #0
STA $36f,y
STA $430,x	

TXA
CLC
ADC #32
TAX

TYA
CLC
SBC #31
BEQ start22
TAY

LDA #$2e 
STA $36f,y
STA $430,x

jmp start2

start22:

LDX #32
LDY #224

LDA #$2e
STA $34f
STA $4f0

LDA #0
STA $26f
STA $4f0	

start3:
LDA #0
STA $26f,y
STA $4f0,x	

TXA
CLC
ADC #32
TAX

TYA
CLC
SBC #31
BEQ start
TAY

LDA #$2e 
STA $26f,y
STA $4f0,x

jmp start3