How to avoid DIV32 command?

[pxidr84]

Hi everyone,

If you have followed my previous thread, you know that I've problems with the DIV32 command, because it apparently disturbs DT Instant Interrupts (if you're here Darrel, can you tell me if the DIV32 command has really an impact on your interrupts?).

So there is my problem, I've to make the following calculations without DIV32 :

var=1120000/freq
reload=(65535-var)+8

As you can see, "1120000" is too large for a 16-bit register. 24-bit will be good.
"freq" variable range is between 10 and 1200.

So how I can do this with a routine, or anything else?

Thank you.