Consider the following ARM assembly program

$$ AREA prog, CODE, READONLY

$$ ENTRY

$$ MOV$$ R$0,$ #$250$

$$ MOV$$ R$1,$ #$1$

repeat$$ ADD$$ R$1,$R$1,$R$0,$ASR#$3$

$$ TST$$ R$1,$#$1$

$$ SUBNE R$0,$#$61$

$$ SUBEQ R$0,$#$91$

$$ CMP$$ R$0,$#$0$

$$ BGT$$ repeat

halt$$ B$$ halt

$$ END

What is the value of R$0$ and R$1$ after executing the above program $($until reaching the$"$B halt" instruction$)?$

R$0=0$x$\_\_\_\_,$ R$1=0$x$\_\_\_\_$

How many times is the ADD instruction executed? $\_\_\_\_$