what file created if use xdata

Since using xdata, there is used for external RAM. The program file is hex. then, the part of xdata, where is located?
I think you suffer from the misconception that the program is loaded into XDATA, it is not.

the '51 is a vonNeuman architecture, not a PC.

Erik

Since using xdata, there is used for external RAM. The program file is hex. then, the part of xdata, where is located?
I think you suffer from the misconception that the program is loaded into XDATA, it is not.

the '51 is a vonNeuman architecture, not a PC.

Erik

No. The 8051 family is a modified Harvard construct. Not vonNeuman. You can emulate vonNeuman by logically oring PSEN* and RD*

Brad,

Thanks for correcting my late in the day royal screw up.

Of course, the '51 is Harvard.

Erik