Declaring RAM areas for P89C668 (xdata problems)

I believe I'm doing something incorrectly, probably relating to how I initialize and tell keil where RAM memory resides at. I'm using the latest version of uVision and C compiler. The P89C668 has 8k...
Declaring RAM areas for P89C668 (xdata problems)

I believe I'm doing something incorrectly, probably relating to how I initialize and tell keil where RAM memory resides at. I'm using the latest version of uVision and C compiler. The P89C668 has 8k...
problem of DS5250 xdata varibles in interrupt service routine

sorry my english is poor... i use c51 v7.00 compiler to develop program on DS5250 . when i use xdata variables in ISR, i find them not work well. for example, a xdata varible and a idata variable...
problem of DS5250 xdata varibles in interrupt service routine

sorry my english is poor... i use c51 v7.00 compiler to develop program on DS5250 . when i use xdata variables in ISR, i find them not work well. for example, a xdata varible and a idata variable...
Global varible or Local varibles which is best wrt data memory usage?

Hi , Which is best local or global variables wrt data memory ?I observed that XData size is getting reduced when I am replacing my global variable with local variable.is there any effect on internal...