What is NOT gate push-back technique?

[zhiling0229]

not gate push-back

Hi,

Can anyone explain to me what is NOT gate push-back technique?

Thanks

 

[barkha]

the assignment to disallow not gate push-back

The NOT-Gate Push-Back option is an advanced logic synthesis option, which allows the compiler’s logic synthesizer module to push an inversion (i.e., a NOT gate) back through a register and implement it on that register’s D input.