How to define variable to ZI area

I have defined some globle variables without initial value, but they were in the RW area, this cause the BIN file larger, how can I put them to ZI area? thanks!
How to define variable to ZI area

I have defined some globle variables without initial value, but they were in the RW area, this cause the BIN file larger, how can I put them to ZI area? thanks!
Defining a variable in the bit-band area

I wonder to know is there anyone who define a variable in bit-band area in c programming language for cortex-M3. I have followed the compiler attribute based on the below link www.keil.com/...
Defining a variable in the bit-band area

I wonder to know is there anyone who define a variable in bit-band area in c programming language for cortex-M3. I have followed the compiler attribute based on the below link www.keil.com/...
NVRAM

i need an external nvram to interface with my 89c51 which ic is best to use and readily available?? i tried looking online for navrams, but all i get is EEPROM i dont want to use EEPROM as a nvram...