lui $1, 512
                   slt $2, $0, $1
                   add $8, $1, $2 

loop:          sub $3, $1, $2
                   or $4, $1, $3
                   ANDI $5, $4, 52501 
                   add $6, $5, $3
                   and $7, $6, $5
                   sw $8, 256($1)
                   lw $3, 256($1)
                   beq $10,$2, end
                   add $10,$10,$2
                   j loop
end: