using 2 DPTRs with C51 v3.20

Thanks for the replies.

In fact this was a desperate question to decrease the code size.

:)

Thanks for the replies.

In fact this was a desperate question to decrease the code size.

:)

According to the Keil marketing speak, the latest version should give you much better optimisation.

You could download the trial version, try it out on a representative sample, and see if they're right!

Using dual data pointers won't decrease code size very much. The reason is that you have to switch which data pointer is used for a mov operation.

Jon