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Hi, I'm devlopping a application based on a 8-bit microcontroller and i'm looking for a code example in assembly in order to save/restore CPU stack (return address on 16 bits) in external RAM (xdata) in order to avoid stack overflow... I would appreciate if someone could help me or give a code example. Bye
Sorry for my question Do not feel "sorry for your question", instead get familiar with '51 coding practices. Do not believe the urban legend that C is processor independent. Erik
if you have no answer, do no systematically reply to my messages. I repeat my question for the real '51 developpers: i'm looking some code example to save call stack (from C0h address to FFh) to xdata RAM (B20h to B60h). Thanks for your answers.
memcpy ((U8 xdata*)0xB20, (U8 idata*)0xc0, 64);
Step into the assembly and see what it does. If you really want to code your own, you'll be using DPTR to point into xdata and a register to point into idata space, probably DJNZ to count. It's just a loop.
I repeat my question for the real '51 developpers: i'm looking some code example to save call stack (from C0h address to FFh) to xdata RAM (B20h to B60h). no real '51 developer would attempt this so you can stop insulting me by excluding me from that group. Erik