Hi Spencer,

use you C or assembler ?

On C you must hold variables local whenever possible.

E.g. on some Projects I use 1000 Bytes or more as local variables and the compiler can overlay all these to fit it into the 256 bytes internal RAM.

But I have experienced, that the SDCC can not overlay data so efficient as the Keil.

On using assembler you need to overlay different local variables manually.


Peter