lniv

if (rst=0) s<=s0
else if (s=s0) s<=s1
else if (s=s1) s<=s2

if (s=s1) then
pc <= pc+1
end

if (rst=0) then
pc <= 0
reset <= 0
end

if (s=s1) then
adr <= data(7:0)
end

if (s=s2) then
adr <= pc
end

if (adr=0) data=0x103
else if (adr=1)data=0x804
else if (adr=2)data=0x402
else if (adr=3) data=4
else if (adr=4) data=5

if(data(11:8)=4) then
pc <= data(7:0)
end