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If I use PDATA for my Stack. will any of my XDATA overlap? or is Keil smart enough to prevent that? Does it mean the RAM(XDATA) I have is 2048 - 256 for pdata?
MCU: AT89C51CC03 Memory Model: Compact
PBPSTACK EQU 1 PBPSTACKTOP EQU 0xFF +1
No, that doesn't sound right to me at all.
Surely, all the Memory Model does is to set the default space - it has no effect on specific accesses?