After setting a particular register, the manual indicates the code must wait 1
ddrctrlclk cycle. My
coreclk is set to ~1GHz and my
ddrctrlclk is set to ~600MHz, meaning a delay of 2
coreclk cycles is required.
nop instructions come to mind.
nop pseudoinstruction appears to be implemented as
addi zero, x0, x0. Can the fu740 execute two
nops in < 2 clock cycles (i.e. can it exceed 1 IPC for these two pseudoinstructions)?