> I did not find eeprom address in pic16f88 manuals, but it appearded
> in hex file downloaded from pic, and google search gave me the same
> address, 0x2100.

MPLAB and the .inc file often have additonal information

For example, if you look up DE in the MPLAB Assembler Help
you'll find

Most PIC1x MCUs 0x2100
PIC18x MCUs 0xF00000
PIC16F19xx MCUs 0xF000

Joe

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