Matrix user forums

Good morning.
I have a problem, I'm doing a project with a 16f1939 16k program memory but I have run out of memory and I decided to move to a higher microcontroller. I chose the 18F4520 with 32K of program memory and is fully pin-compatible.
When I compile the program with the new microcontroller should have 50% free memory but it is not correct, the compiler tells me I have 21% free memory.
What is the reason? I have to do the program and I think I'll stay out of memory again.

Hi
Both of those processors have 16k word, or instruction, program memory space.
The 16F1939 instruction is 14 bits wide, so converting the program space to bytes does not make any sense so is not quoted by the manufacturer.
Regards,
Leigh