xdata &expanded ram( xram)

friends,i have interfaced 512k nvram to 89c668 (philips) but i dont know how to declare variables to xdata and xram.Is there any keyword to define variables seprately in xdata and xram at compile time...
xdata &expanded ram( xram)

friends,i have interfaced 512k nvram to 89c668 (philips) but i dont know how to declare variables to xdata and xram.Is there any keyword to define variables seprately in xdata and xram at compile time...
accessing 8051 internal expanded memory

I am working to port older code to an Atmel AT89C51AC3, I have the system basically running but have run out of data space while tweaking the code to handle timing constraints. The AT89C51AC3 has 2048...
accessing 8051 internal expanded memory

I am working to port older code to an Atmel AT89C51AC3, I have the system basically running but have run out of data space while tweaking the code to handle timing constraints. The AT89C51AC3 has 2048...
run code from xdata (internal ram)

I want to run a short function from internal xdata! I use the DS80C390, I use the configuration with my internal xdata on 00F000h–00FFFFh and no external xdata. I have 128k code space. IDM =...